Clinical Guidelines3 March 2015

Risk Assessment and Prevention of Pressure Ulcers: A Clinical Practice Guideline From the American College of Physicians

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    Abstract

    Description:

    The American College of Physicians (ACP) developed this guideline to present the evidence and provide clinical recommendations based on the comparative effectiveness of risk assessment scales and preventive interventions for pressure ulcers.

    Methods:

    This guideline is based on published literature on this topic that was identified by using MEDLINE (1946 through February 2014), CINAHL (1998 through February 2014), the Cochrane Library, clinical trials registries, and reference lists. Searches were limited to English-language publications. The outcomes evaluated for this guideline include pressure ulcer incidence and severity, resource use, diagnostic accuracy, measures of risk, and harms. This guideline grades the quality of evidence and strength of recommendations by using ACP's clinical practice guidelines grading system. The target audience for this guideline includes all clinicians, and the target patient population is patients at risk for pressure ulcers.

    Recommendation 1:

    ACP recommends that clinicians should perform a risk assessment to identify patients who are at risk of developing pressure ulcers. (Grade: weak recommendation, low-quality evidence)

    Recommendation 2:

    ACP recommends that clinicians should choose advanced static mattresses or advanced static overlays in patients who are at an increased risk of developing pressure ulcers. (Grade: strong recommendation, moderate-quality evidence)

    Recommendation 3:

    ACP recommends against using alternating-air mattresses or alternating-air overlays in patients who are at an increased risk of developing pressure ulcers. (Grade: weak recommendation, moderate-quality evidence)

    Pressure ulcers are defined as localized injury to the skin and/or underlying tissue, usually over a bony prominence, as a result of pressure alone or in combination with shear (1). They commonly occur in patients with limited mobility, such as those in hospitals or long-term care settings. It is estimated that up to 3 million adults in the United States are affected by pressure ulcers (2). The prevalence in the United States is estimated to range from 0.4% to 38% in acute care hospitals, 2% to 24% in long-term care nursing facilities, and 0% to 17% in home care settings (2–4). Between 1990 and 2001, pressure ulcers were reported as a cause of death in nearly 115 000 persons and were listed as the underlying cause of death in more than 21 000 (5). The estimated cost of treating each case of pressure ulcers ranges from $37 800 to $70 000, and up to $11 billion is spent annually in the United States to treat pressure ulcers (2, 6, 7). A growing industry has developed to market various products for pressure ulcer prevention.

    Risk factors for pressure ulcers include older age; black race or Hispanic ethnicity; lower body weight; cognitive impairment; physical impairments; and other comorbid conditions that affect soft tissue integrity and healing, such as urinary or fecal incontinence, diabetes, edema, impaired microcirculation, hypoalbuminemia, and malnutrition (8–11). Various risk assessment instruments have been developed, including the Braden, Cubbin and Jackson, Norton, Ramstadius, and Waterlow scales.

    Prevention strategies for pressure ulcers begin with identification of high-risk persons. Many interventions designed to prevent pressure ulcers and reduce friction and shear are available, and categories include various support surfaces (such as mattresses, integrated bed systems, overlays, and cushions), repositioning, nutritional supplementation, skin care (for example, dressing and management of incontinence), and topical creams (Table 1). Studies have suggested that prevention of hospital-acquired pressure ulcers is more effective than standard care (12). Although this guideline focuses on a comparative effectiveness review of individual interventions, we understand that care teams often implement multicomponent interventions or bundled approaches to preventing pressure ulcers and that pressure ulcer care involves physicians, nurses, and other members of the care team.

    Table 1. Pressure Ulcer Preventive Interventions

    The purpose of this American College of Physicians (ACP) guideline is to present the available evidence on the comparative effectiveness of various risk assessment instruments and benefits and harms of strategies to prevent pressure ulcers. The target audience for this guideline is all clinicians, including physicians, nurses, dieticians, and physical therapists. The target patient population comprises all adults at risk for pressure ulcers. For recommendations on the treatment of pressure ulcers, please refer to the accompanying ACP guideline (13).

    Methods

    This guideline is based on a systematic evidence review (14), an update of the literature (Supplement), and an evidence report sponsored by the Agency for Healthcare Research and Quality (AHRQ) (17) that addressed the following key questions:

    1. Is the use of risk assessment tools effective in reducing the incidence or severity of pressure ulcers, and how does effectiveness vary according to setting and patient characteristics?

    2. How do various risk assessment tools compare with one another in their ability to predict the incidence of pressure ulcers?

    3. In patients at increased risk for pressure ulcers, what is the effectiveness and comparative effectiveness of preventive interventions in reducing the incidence or severity of pressure ulcers, and how does effectiveness vary according to assessed risk level, setting, or patient characteristics?

    4. What are the harms of interventions for preventing pressure ulcers? Do harms differ according to the type of intervention, setting, or patient characteristics?

    We searched MEDLINE (1946 through February 2014), CINAHL (1998 through February 2014), the Cochrane Library, clinical trials registries, and reference lists to identify trials published in English. The outcomes evaluated for this guideline include pressure ulcer incidence and severity; resource use (including duration of hospital stay or cost); diagnostic accuracy (sensitivity, specificity, and positive and negative likelihood ratios); measures of risk (hazard ratios, odds ratios, and relative risks); discrimination (area under the receiver-operating characteristic curve); and harms, such as dermatologic reactions, discomfort, and infection.

    We also supplemented the AHRQ evidence review with another systematic evidence review of multicomponent strategies for preventing pressure ulcers that examined the importance of contextual aspects of programs that aim to reduce facility-acquired pressure ulcers (16). This review included implementation studies (from 2000 to September 2012) of multicomponent initiatives to prevent pressure ulcers in adults in U.S. acute and long-term care settings. Studies were limited to those that reported pressure ulcer rates at least 6 months after implementation of the intervention.

    Further details about the methods and inclusion and exclusion criteria applied in the evidence review are available in the full AHRQ report (15) and the Supplement. This guideline rates the quality of evidence and strength of recommendations by using ACP's guideline grading system (Table 2). Details of the ACP guideline development process can be found in ACP's methods paper (17).

    Table 2. The American College of Physicians' Guideline Grading System
    Comparative Effectiveness of Risk Assessment Tools for Reducing the Incidence or Severity of Pressure Ulcers

    Low-quality evidence from 1 good-quality study showed no difference among the Waterlow scale, the Ramstadius tool (an unvalidated combination risk assessment and intervention protocol), and nurses' clinical judgment alone in reducing the risk for pressure ulcers or length of stay in patients (18). A recent Cochrane review supported this conclusion, citing lack of evidence to conclusively show a difference between the risk assessment tools and clinical judgment in reducing pressure ulcer incidence (19). No study evaluated the effectiveness of risk assessment tools across care settings or patient subgroups.

    Comparative Diagnostic Accuracy of Risk Assessment Tools for Predicting the Incidence of Pressure Ulcers

    Moderate-quality evidence showed that the Braden, Cubbin and Jackson, Norton, and Waterlow scales had low sensitivity and specificity to identify patients at risk for pressure ulcers. In addition, moderate-quality evidence showed that diagnostic accuracy did not differ substantially among the scales (15). Low-quality evidence showed no clear differences in diagnostic accuracy of the Braden scale according to patient characteristics or settings, with lower optimal cutoffs for surgical or acute care patients. Moderate-quality evidence showed no clear differences in diagnostic accuracy of the Braden scale according to baseline pressure ulcer risk. Although the Cubbin and Jackson scale was initially developed for patients in intensive care units, low-quality evidence showed that it had a similar diagnostic accuracy to the Braden and Waterlow scales in this setting (20, 21). Tables 3 and 4 provide descriptions of the scales as well as sensitivities and specificities; more details are available in the full evidence report (15).

    Table 3. Descriptions of Commonly Used Pressure Ulcer Risk Assessment Tools
    Table 4. Evidence for Pressure Ulcer Risk Assessment Tools
    Evidence Related to Individual Interventions
    Effectiveness and Comparative Effectiveness of Preventive Interventions to Reduce the Incidence or Severity of Pressure Ulcers

    Many interventions were studied by only 1 trial each, and pooling of studies was not practical because of methodological limitations and clinical diversity of the studies. Table 5 summarizes the evidence for the various preventive interventions. Static (moderate-quality evidence) (55–59) and alternating-air (low-quality evidence) (74–76) mattresses or overlays reduced pressure ulcer incidence compared with standard hospital mattresses. Evidence was mixed or showed no statistically significant difference for comparisons of other support surfaces (61–69, 71–83). Low-quality evidence showed no difference in risk for pressure ulcers or mixed results for heel supports or boots (84, 85), different wheelchair cushions (86–89), nutritional supplementation (90–95), various dressings (101, 102), intraoperative warming (103), and various repositioning intervals (low- to moderate-quality evidence) (96–100, 108, 109). Low-quality evidence showed that a skin cream containing fatty acid and a skin cleanser other than soap decreased risk for pressure ulcers (60, 110, 111).

    Table 5. Evidence for Interventions to Reduce Incidence and Severity of Pressure Ulcers
    Harms of Interventions to Prevent Pressure Ulcers

    A total of 16 trials reported harms for interventions to prevent pressure ulcers. Although details on specific harms were sparse, no serious treatment-related harms were reported. In summary, evidence was insufficient to determine how harms of preventive interventions vary according to the type of intervention, care setting, or patient characteristics.

    Mattresses, Overlays, and Other Support Systems

    Low-quality evidence from 9 studies of support surfaces reported harms. Heat-related discomfort was reported in 3 trials of sheepskin overlays, which also led to withdrawals (56, 57, 60). One trial reported differences in pain and sleep disturbances between different dynamic mattresses (110). A study comparing a multicell pulsating dynamic mattress with a static gel overlay found no differences in risk for adverse events (111). One study reported no increased risk for adverse events with the Heelift Suspension Boot (DM Systems) compared with standard care (84). One study reported an increased risk for withdrawal due to discomfort with the Jay cushion compared with standard wheelchair cushions (88).

    Nutritional Supplementation

    Low-quality evidence from 1 study reported that tube feeds were poorly tolerated (54% removed within 1 week and 67% removed within 2 weeks) (93).

    Repositioning

    Low-quality evidence from 2 studies reported increased nonadherence due to intolerability of repositioning at a 30-degree tilt position compared with standard positioning (108, 109).

    Dressings

    Low-quality evidence from 1 study showed that application of the Remois Pad (Alcare) resulted in pruritus in 1 patient out of 37 total (112).

    Creams, Lotions, and Cleansers

    Low-quality evidence from 3 studies reported harms for lotions or creams. Two studies reported 1 case each of a wet sore or rash, and 1 study showed no differences in rash between various creams studied (106, 113, 114).

    Interventions to Facilitate Implementation of Pressure Ulcer Prevention Protocols or Guidelines

    Low-quality evidence from 1 study showed no difference in incident stage 2 to 4 ulcers between a multicomponent electronic clinical decision-support system or provision of guidelines (1.8% vs. 2.1%; relative risk, 0.85 [95% CI, 0.23 to 3.10]) (107). Evidence from 1 poor-quality study showed that immediate implementation of musical cues was associated with lower risk for incident ulcers in nursing home residents (6.0% vs. 9.4%; relative risk, 0.64 [CI, 0.45 to 0.90]) (115).

    Evidence Related to Multicomponent Interventions

    Multicomponent interventions are increasingly becoming the standard of care for prevention of pressure ulcers. Bundling care practices and organizing a team approach to care have been shown to be effective at improving patient outcomes.

    Benefits

    Moderate-quality evidence from a review of 26 implementation studies showed that multicomponent interventions can improve skin care and reduce pressure ulcer rates in both acute and long-term care settings (16). The review found that key components of successful interventions include simplification and standardization of pressure ulcer–specific interventions and documentation, involvement of multidisciplinary teams and leadership (including ostomy, continence, and other nurses and personnel), designated skin champions who educate staff about skin care and ulcer prevention, ongoing staff education (including team meetings and motivational campaigns), and sustained audit and feedback (including weekly prevalence reports, formal and informal feedback, and all-facility meetings) (16). Successful interventions also incorporated evidence-based guidelines into their practices.

    Harms

    The systematic review found no harms reported for the multicomponent strategies that were used to prevent pressure ulcers (16).

    Costs

    The systematic review identified 4 studies (116–120) that reported significant cost savings with the multicomponent approach. In 2008, a 2-hospital system (548 beds in Naples, Florida) estimated annual cost savings of approximately $11.5 million as a result of statistically significant reductions in pressure ulcer prevalence (117).

    Summary

    Low-quality evidence showed that risk assessment tools (the Waterlow and Ramstadius scales) were equivalent to clinical judgment alone for reducing pressure ulcer incidence. Evidence on the diagnostic accuracy of the commonly used risk assessment instruments showed that these tools can help in the identification of patients who are at an increased risk for pressure ulcers, although the sensitivities and specificities were low. Diagnostic accuracy did not differ substantially among the various risk assessment instruments, and studies of direct comparisons were limited.

    Most of the evidence on preventive interventions came from studies assessing support surfaces. Moderate-quality evidence showed that advanced static mattresses and overlays were associated with a lower risk for pressure ulcers compared with standard mattresses in higher-risk patients. Evidence on other preventive interventions, including nutritional supplementation, lotions, cleansers, and dressings, was limited and inconclusive because most were assessed by few studies.

    Little evidence was available on harms of preventive interventions, although no serious harms were reported. Evidence was also insufficient to draw a conclusion about harms based on the type of intervention, care setting, or patient characteristics.

    All of the preventive interventions reviewed in this guideline were assessed individually, but they can be bundled to provide optimum care. Evidence shows that multicomponent strategies can improve clinical outcomes. Key components of successful implementation efforts include simplification and standardization of pressure ulcer–specific interventions and documentation, involvement of multidisciplinary teams and leadership, designated skin champions, ongoing staff education, and sustained audit and feedback. The Figure summarizes the recommendations and clinical considerations.

    Figure. Summary of the American College of Physicians guideline on risk assessment and prevention of pressure ulcers.
    Recommendations

    Recommendation 1: ACP recommends that clinicians should perform a risk assessment to identify patients who are at risk of developing pressure ulcers. (Grade: weak recommendation, low-quality evidence)

    Risk assessment is often part of bundled care and multicomponent interventions for preventing pressure ulcers. Risk factors for pressure ulcers include older age; black race or Hispanic ethnicity; lower body weight; cognitive impairment; physical impairments; and other comorbid conditions that affect soft tissue integrity and healing, such as urinary or fecal incontinence, diabetes, edema, impaired microcirculation, hypoalbuminemia, and malnutrition. Clinicians should make individualized decisions based on risk assessment on whether to use a single or multicomponent intervention to prevent pressure ulcers in patients.

    The current evidence does not conclusively show a difference between clinical judgment and risk assessment scales in reducing pressure ulcer incidence. However, tools may be especially useful for clinicians without expert gestalt. Moderate-quality evidence showed that the Braden, Cubbin and Jackson, Norton, and Waterlow scales can predict which patients are more likely to develop a pressure ulcer, and all of these instruments have low sensitivity and specificity. In addition, moderate-quality evidence showed that the diagnostic accuracies of the scales do not differ substantially. No study evaluated the effectiveness of risk assessment tools across care settings or patient subgroups.

    Recommendation 2: ACP recommends that clinicians should choose advanced static mattresses or advanced static overlays in patients who are at an increased risk of developing pressure ulcers. (Grade: strong recommendation, moderate-quality evidence)

    Moderate-quality evidence showed that the use of advanced static mattresses or overlays was associated with a lower risk for pressure ulcers compared with standard hospital mattresses, and no brand was shown to be superior. Advanced static mattresses and overlays are also less expensive than alternating-air or low–air-loss mattresses and can be used as part of a multicomponent approach to pressure ulcer prevention.

    Recommendation 3: ACP recommends against using alternating-air mattresses or alternating-air overlays in patients who are at an increased risk of developing pressure ulcers. (Grade: weak recommendation, moderate-quality evidence)

    The current evidence does not show a clear benefit for pressure ulcer prevention using alternating-air beds and overlays compared with static mattresses and overlays, and alternating-air beds and overlays are associated with significantly higher costs. Lower-cost support surfaces should be the preferred approach to care.

    Inconclusive Areas of Evidence

    Evidence is insufficient to compare various preventive interventions, such as different types of repositioning and leg elevations, relative to various kinds of usual care. Creams and lotions, dressings, repositioning, and nutritional support, in any combination, are generally regarded as usual care. Of note, the comparison group in many studies was standard care that often included repositioning, skin care, and/or nutrition. Therefore, any lack of evidence showing benefit relative to the comparison group of usual care does not mean that usual care should be abandoned.

    Future Research

    Data on the efficacy of many of the interventions came only from single studies, and further research into comparative effectiveness of pressure ulcer prevention strategies is warranted. In addition, more research is needed on the comparative efficacy of pressure ulcer risk assessment tools and their efficacy compared with clinical judgment.

    High-Value Care

    Prevention of pressure ulcers is the first important step, and advanced static mattresses and overlays were associated with a lower risk for pressure ulcers compared with standard mattresses in higher-risk patients. Many hospitals in the United States use alternating-air and low–air-loss mattresses and overlays despite the lack of evidence showing a potential benefit in the reduction of pressure ulcers in high-risk populations. Using these support systems is expensive and adds unnecessary burden on the health care system. Based on the review of the current evidence, lower-cost support services should be the preferred approach to care.

    References

    • 1. European Pressure Ulcer Advisory PanelNational Pressure Ulcer Advisory PanelPan Pacific Pressure Injury AlliancePrevention and Treatment of Pressure Ulcers: Quick Reference Guide. Washington, DC: National Pressure Ulcer Advisory Panel; 2009. Google Scholar
    • 2. Lyder CHPressure ulcer prevention and management. JAMA2003;289:223-6. [PMID: 12517234] CrossrefMedlineGoogle Scholar
    • 3. Pressure ulcers in America: prevalence, incidence, and implications for the future. An executive summary of the National Pressure Ulcer Advisory Panel monograph. Adv Skin Wound Care2001;14:208-15. [PMID: 11902346] MedlineGoogle Scholar
    • 4. VanGilder CAmlung SHarrison PMeyer SResults of the 2008–2009 International Pressure Ulcer Prevalence Survey and a 3-year, acute care, unit-specific analysis. Ostomy Wound Manage2009;55:39-45. [PMID: 19934462] MedlineGoogle Scholar
    • 5. Redelings MDLee NESorvillo FPressure ulcers: more lethal than we thought? Adv Skin Wound Care2005;18:367-72. [PMID: 16160463] CrossrefMedlineGoogle Scholar
    • 6. Kuhn BACoulter SJBalancing the pressure ulcer cost and quality equation. Nurs Econ1992;10:353-9. [PMID: 1465158] MedlineGoogle Scholar
    • 7. Russo CASteiner CSpector WHospitalizations Related to Pressure Ulcers Among Adults 18 Years and Older, 2006. HCUP statistical brief no. 64. Rockville, MD: Agency for Healthcare Research and Quality; 2008. Google Scholar
    • 8. Fogerty MDAbumrad NNNanney LArbogast PGPoulose BBarbul ARisk factors for pressure ulcers in acute care hospitals. Wound Repair Regen2008;16:11-8. [PMID: 18211574] doi:10.1111/j.1524-475X.2007.00327.x CrossrefMedlineGoogle Scholar
    • 9. Lyder CAyello EPressure ulcers: a patient safety issue.. In: Hughes R, eds. Patient Safety and Quality: An Evidence-Based Handbook for Nurses. AHRQ publication no. 08-0043. Rockville, MD: Agency for Healthcare Research and Quality; 2008:1-33. Google Scholar
    • 10. Lyder CHYu CEmerling JMangat RStevenson DEmpleo-Frazier Oet alThe Braden Scale for pressure ulcer risk: evaluating the predictive validity in Black and Latino/Hispanic elders. Appl Nurs Res1999;12:60-8. [PMID: 10319520] CrossrefMedlineGoogle Scholar
    • 11. Baumgarten MMargolis DJLocalio ARKagan SHLowe RAKinosian Bet alPressure ulcers among elderly patients early in the hospital stay. J Gerontol A Biol Sci Med Sci2006;61:749-54. [PMID: 16870639] CrossrefMedlineGoogle Scholar
    • 12. Padula WVMishra MKMakic MBSullivan PWImproving the quality of pressure ulcer care with prevention: a cost-effectiveness analysis. Med Care2011;49:385-92. [PMID: 21368685] doi:10.1097/MLR.0b013e31820292b3 CrossrefMedlineGoogle Scholar
    • 13. Qaseem AHumphrey LLForciea MAStarkey MDenberg TDClinical Guidelines Committee of the American College of PhysiciansTreatment of pressure ulcers: a clinical practice guideline from the American College of Physicians. Ann Intern Med2015;162:370-9. doi:10.7326/M14-1568 LinkGoogle Scholar
    • 14. Chou RDana TBougatsos CBlazina IStarmer AJReitel Ket alPressure ulcer risk assessment and prevention: a systematic comparative effectiveness review. Ann Intern Med2013;159:28-38. [PMID: 23817702]. doi:10.7326/0003-4819-159-1-201307020-00006 LinkGoogle Scholar
    • 15. Chou R, Dana T, Bougatsos C, Blazina I, Starmer A, Reitel K, et al. Pressure Ulcer Risk Assessment and Prevention: Comparative Effectiveness. Comparative effectiveness review no. 87. (Prepared by Oregon Evidence-based Practice Center under contract no. 290-2007-10057-I.) AHRQ publication no. 12(13)-EHC148-EF. Rockville, MD: Agency for Healthcare Research and Quality; 2013. Accessed at www.effectivehealthcare.ahrq.gov/ehc/products/309/1490/pressure-ulcer-prevention-executive-130508.pdf on 5 January 2015. Google Scholar
    • 16. Sullivan NSchoelles KMPreventing in-facility pressure ulcers as a patient safety strategy: a systematic review. Ann Intern Med2013;158:410-6. [PMID: 23460098]. doi:10.7326/0003-4819-158-5-201303051-00008 LinkGoogle Scholar
    • 17. Qaseem ASnow VOwens DKShekelle PClinical Guidelines Committee of the American College of PhysiciansThe development of clinical practice guidelines and guidance statements of the American College of Physicians: summary of methods. Ann Intern Med2010;153:194-9. [PMID: 20679562]. doi:10.7326/0003-4819-153-3-201008030-00010 LinkGoogle Scholar
    • 18. Webster JColeman KMudge AMarquart LGardner GStankiewicz Met alPressure ulcers: effectiveness of risk-assessment tools. A randomised controlled trial (the ULCER trial). BMJ Qual Saf2011;20:297-306. [PMID: 21262791] doi:10.1136/bmjqs.2010.043109 CrossrefMedlineGoogle Scholar
    • 19. Moore ZECowman SRisk assessment tools for the prevention of pressure ulcers. Cochrane Database Syst Rev2014;2:CD006471. [PMID: 24497383] doi:10.1002/14651858.CD006471.pub3 CrossrefMedlineGoogle Scholar
    • 20. Boyle MGreen MPressure sores in intensive care: defining their incidence and associated factors and assessing the utility of two pressure sore risk assessment tools. Aust Crit Care2001;14:24-30. [PMID: 11899757] CrossrefMedlineGoogle Scholar
    • 21. Jun Seongsook RNJeong Ihnsook RNLee Younghee RNValidity of pressure ulcer risk assessment scales; Cubbin and Jackson, Braden, and Douglas scale. Int J Nurs Stud2004;41:199-204. [PMID: 14725784] CrossrefMedlineGoogle Scholar
    • 22. Bergstrom NBraden BKemp MChampagne MRuby EPredicting pressure ulcer risk: a multisite study of the predictive validity of the Braden Scale. Nurs Res1998;47:261-9. [PMID: 9766454] CrossrefMedlineGoogle Scholar
    • 23. Bergstrom NBraden BJLaguzza AHolman VThe Braden Scale for predicting pressure sore risk. Nurs Res1987;36:205-10. [PMID: 3299278] CrossrefMedlineGoogle Scholar
    • 24. Bergstrom NDemuth PJBraden BJA clinical trial of the Braden Scale for predicting pressure sore risk. Nurs Clin North Am1987;22:417-28. [PMID: 3554150] MedlineGoogle Scholar
    • 25. Braden BJBergstrom NPredictive validity of the Braden Scale for pressure sore risk in a nursing home population. Res Nurs Health1994;17:459-70. [PMID: 7972924] CrossrefMedlineGoogle Scholar
    • 26. Capobianco MLMcDonald DDFactors affecting the predictive validity of the Braden Scale. Adv Wound Care1996;9:32-6. [PMID: 9069754] MedlineGoogle Scholar
    • 27. Defloor TGrypdonck MFPressure ulcers: validation of two risk assessment scales. J Clin Nurs2005;14:373-82. [PMID: 15707448] CrossrefMedlineGoogle Scholar
    • 28. Goodridge DMSloan JALeDoyen YMMcKenzie JAKnight WEGayari MRisk-assessment scores, prevention strategies, and the incidence of pressure ulcers among the elderly in four Canadian health-care facilities. Can J Nurs Res1998;30:23-44. [PMID: 9807287] MedlineGoogle Scholar
    • 29. Halfens RJVan Achterberg TBal RMValidity and reliability of the Braden Scale and the influence of other risk factors: a multi-centre prospective study. Int J Nurs Stud2000;37:313-9. [PMID: 10760538] CrossrefMedlineGoogle Scholar
    • 30. Langemo DKOlson BHunter SHanson DBurd CCathcart-Silberberg TIncidence and prediction of pressure ulcers in five patient care settings. Decubitus1991;4:25-6. [PMID: 1872975] MedlineGoogle Scholar
    • 31. Lewicki LJMion LCSecic MSensitivity and specificity of the Braden Scale in the cardiac surgical population. J Wound Ostomy Continence Nurs2000;27:36-41. [PMID: 10649141] MedlineGoogle Scholar
    • 32. Lyder CHYu CEmerling JMangat RStevenson DEmpleo-Frazier Oet alThe Braden Scale for pressure ulcer risk: evaluating the predictive validity in Black and Latino/Hispanic elders. Appl Nurs Res1999;12:60-8. [PMID: 10319520] CrossrefMedlineGoogle Scholar
    • 33. Olson KTkachuk LHanson JPreventing pressure sores in oncology patients. Clin Nurs Res1998;7:207-24. [PMID: 9633340] CrossrefMedlineGoogle Scholar
    • 34. Pang SMWong TKPredicting pressure sore risk with the Norton, Braden, and Waterlow scales in a Hong Kong rehabilitation hospital. Nurs Res1998;47:147-53. [PMID: 9610648] CrossrefMedlineGoogle Scholar
    • 35. Ramundo JMReliability and validity of the Braden Scale in the home care setting. J Wound Ostomy Continence Nurs1995;22:128-34. [PMID: 7599722] CrossrefMedlineGoogle Scholar
    • 36. Salvadalena GDSnyder MLBrogdon KEClinical trial of the Braden Scale on an acute care medical unit. J ET Nurs1992;19:160-5. [PMID: 1420528] MedlineGoogle Scholar
    • 37. Schoonhoven LHaalboom JRBousema MTAlgra AGrobbee DEGrypdonck MHet alprePURSE study groupThe prevention and pressure ulcer risk score evaluation study. Prospective cohort study of routine use of risk assessment scales for prediction of pressure ulcers. BMJ2002;325:797. [PMID: 12376437] CrossrefMedlineGoogle Scholar
    • 38. Baldwin KMZiegler SMPressure ulcer risk following critical traumatic injury. Adv Wound Care1998;11:168-73. [PMID: 10326336] MedlineGoogle Scholar
    • 39. Barnes DPayton RGClinical application of the Braden Scale in the acute-care setting. Dermatol Nurs1993;5:386-8. [PMID: 8274348] MedlineGoogle Scholar
    • 40. Chan EYTan SLLee CKLee JYPrevalence, incidence and predictors of pressure ulcers in a tertiary hospital in Singapore. J Wound Care2005;14:383-4. [PMID: 16178294] CrossrefMedlineGoogle Scholar
    • 41. Feuchtinger JHalfens RDassen TPressure ulcer risk assessment immediately after cardiac surgery—does it make a difference? A comparison of three pressure ulcer risk assessment instruments within a cardiac surgery population. Nurs Crit Care2007;12:42-9. [PMID: 17883663] CrossrefMedlineGoogle Scholar
    • 42. Hagisawa SBarbenel JThe limits of pressure sore prevention. J R Soc Med1999;92:576-8. [PMID: 10703495] CrossrefMedlineGoogle Scholar
    • 43. Jalali RRezaie MPredicting pressure ulcer risk: comparing the predictive validity of 4 scales. Adv Skin Wound Care2005;18:92-7. [PMID: 15788914] CrossrefMedlineGoogle Scholar
    • 44. Kim ELee SLee EEom MComparison of the predictive validity among pressure ulcer risk assessment scales for surgical ICU patients. Aust J Adv Nurs2009;26:87-94. Google Scholar
    • 45. Kwong EPang SWong THo JShao-ling XLi-jun TPredicting pressure ulcer risk with the modified Braden, Braden, and Norton scales in acute care hospitals in Mainland China. Appl Nurs Res2005;18:122-8. [PMID: 15991112] CrossrefMedlineGoogle Scholar
    • 46. Lyder CHYu CStevenson DMangat REmpleo-Frazier OEmerling Jet alValidating the Braden Scale for the prediction of pressure ulcer risk in blacks and Latino/Hispanic elders: a pilot study. Ostomy Wound Manage1998;44:42S-49S. [PMID: 9625997] MedlineGoogle Scholar
    • 47. Serpa LFSantos VLCampanili TCQueiroz MPredictive validity of the Braden scale for pressure ulcer risk in critical care patients. Rev Lat Am Enfermagem2011;19:50-7. [PMID: 21412629] CrossrefMedlineGoogle Scholar
    • 48. Tourtual DMRiesenberg LAKorutz CJSemo AHAsef ATalati Ket alPredictors of hospital acquired heel pressure ulcers. Ostomy Wound Manage1997;43:24-8. [PMID: 9369740] MedlineGoogle Scholar
    • 49. VandenBosch TMontoye CSatwicz MDurkee-Leonard KBoylan-Lewis BPredictive validity of the Braden Scale and nurse perception in identifying pressure ulcer risk. Appl Nurs Res1996;9:80-6. [PMID: 8871435] CrossrefMedlineGoogle Scholar
    • 50. Bergstrom NBraden BJPredictive validity of the Braden Scale among Black and White subjects. Nurs Res2002;51:398-403. [PMID: 12464760] CrossrefMedlineGoogle Scholar
    • 51. Lincoln RRoberts RMaddox ALevine SPatterson CUse of the Norton Pressure Sore Risk Assessment Scoring System with elderly patients in acute care. J Enterostomal Ther1986;13:132-8. [PMID: 3636346] MedlineGoogle Scholar
    • 52. Stotts NAPredicting pressure ulcer development in surgical patients. Heart Lung1988;17:641-7. [PMID: 3192408] MedlineGoogle Scholar
    • 53. Chan WHChow KWFrench PLai YSTse LKWhich pressure sore risk calculator? A study of the effectiveness of the Norton scale in Hong Kong. Int J Nurs Stud1997;34:165-9. [PMID: 9134472] MedlineGoogle Scholar
    • 54. Perneger TVRaë ACGaspoz JMBorst FVitek OHéliot CScreening for pressure ulcer risk in an acute care hospital: development of a brief bedside scale. J Clin Epidemiol2002;55:498-504. [PMID: 12007553] CrossrefMedlineGoogle Scholar
    • 55. Gray DCampbell MA randomized clinical trial of two types of foam mattresses. J Tissue Viability1994;4:128-32. CrossrefGoogle Scholar
    • 56. Jolley DJWright RMcGowan SHickey MBCampbell DASinclair RDet alPreventing pressure ulcers with the Australian Medical Sheepskin: an open-label randomised controlled trial. Med J Aust2004;180:324-7. [PMID: 15059051] CrossrefMedlineGoogle Scholar
    • 57. Mistiaen PAchterberg WAment AHalfens RHuizinga JMontgomery Ket alThe effectiveness of the Australian Medical Sheepskin for the prevention of pressure ulcers in somatic nursing home patients: a prospective multicenter randomized-controlled trial (ISRCTN17553857). Wound Repair Regen2010;18:572-9. [PMID: 20946141] doi:10.1111/j.1524-475X.2010.00629.x CrossrefMedlineGoogle Scholar
    • 58. Russell LJReynolds TMPark CRithalia SGonsalkorale MBirch Jet alPPUS-1 Study GroupRandomized clinical trial comparing 2 support surfaces: results of the Prevention of Pressure Ulcers Study. Adv Skin Wound Care2003;16:317-27. [PMID: 14652518] CrossrefMedlineGoogle Scholar
    • 59. van Leen MHovius SNeyens JHalfens RSchols JPressure relief, cold foam or static air? A single center, prospective, controlled randomized clinical trial in a Dutch nursing home. J Tissue Viability2011;20:30-4. [PMID: 20510611] doi:10.1016/j.jtv.2010.04.001 CrossrefMedlineGoogle Scholar
    • 60. McGowan SMontgomery KJolley DWright RThe role of sheepskins in preventing pressure ulcers in elderly orthopaedic patients. Proceedings of the First World Wound Healing Congress, Melbourne, Australia, 10–13 September 2000. Primary Intention2000;8:127-34. Google Scholar
    • 61. Collier MEPressure-reducing mattresses. J Wound Care1996;5:207-11. [PMID: 8850903] CrossrefMedlineGoogle Scholar
    • 62. Cooper PJGray DGMollison JA randomised controlled trial of two pressure-reducing surfaces. J Wound Care1998;7:374-6. [PMID: 9832744] CrossrefMedlineGoogle Scholar
    • 63. Gray DGSmith MComparison of a new foam mattress with the standard hospital mattress. J Wound Care2000;9:29-31. [PMID: 10827665] CrossrefMedlineGoogle Scholar
    • 64. Hampton SEfficacy and cost-effectiveness of the Thermo contour mattress. Br J Nurs1999;8:990-6. [PMID: 10711028] CrossrefMedlineGoogle Scholar
    • 65. Kemp MGKopanke DTordecilla LFogg LShott SMatthiesen Vet alThe role of support surfaces and patient attributes in preventing pressure ulcers in elderly patients. Res Nurs Health1993;16:89-96. [PMID: 8502770] CrossrefMedlineGoogle Scholar
    • 66. Lazzara DJBuschmann MTPrevention of pressure ulcers in elderly nursing home residents: are special support surfaces the answer? Decubitus1991;4:42-4. [PMID: 1760125] MedlineGoogle Scholar
    • 67. Lim RSirett RConine TADaechsel DClinical trial of foam cushions in the prevention of decubitis ulcers in elderly patients. J Rehabil Res Dev1988;25:19-26. [PMID: 3361457] MedlineGoogle Scholar
    • 68. Sideranko SQuinn ABurns KFroman RDEffects of position and mattress overlay on sacral and heel pressures in a clinical population. Res Nurs Health1992;15:245-51. [PMID: 1496149] CrossrefMedlineGoogle Scholar
    • 69. Stapleton MPreventing pressure sores—an evaluation of three products. Geriatr Nurs (Lond)1986;6:23-5. [PMID: 3635484] MedlineGoogle Scholar
    • 70. Vyhlidal SKMoxness DBosak KSVan Meter FGBergstrom NMattress replacement or foam overlay? A prospective study on the incidence of pressure ulcers. Appl Nurs Res1997;10:111-20. [PMID: 9274063] CrossrefMedlineGoogle Scholar
    • 71. Inman KJSibbald WJRutledge FSClark BJClinical utility and cost-effectiveness of an air suspension bed in the prevention of pressure ulcers. JAMA1993;269:1139-43. [PMID: 8433469] CrossrefMedlineGoogle Scholar
    • 72. Jesurum JJoseph KDavis JMSuki RBalloons, beds, and breakdown. Effects of low-air loss therapy on the development of pressure ulcers in cardiovascular surgical patients with intra-aortic balloon pump support. Crit Care Nurs Clin North Am1996;8:423-40. [PMID: 9095813] CrossrefMedlineGoogle Scholar
    • 73. Theaker CKuper MSoni NPressure ulcer prevention in intensive care—a randomised control trial of two pressure-relieving devices. Anaesthesia2005;60:395-9. [PMID: 15766343] CrossrefMedlineGoogle Scholar
    • 74. Andersen KEJensen OKvorning SABach EDecubitus prophylaxis: a prospective trial on the efficiency of alternating-pressure air-mattresses and water-mattresses. Acta Derm Venereol1983;63:227-30. [PMID: 6192636] MedlineGoogle Scholar
    • 75. Cavicchioli ACarella GClinical effectiveness of a low-tech versus high-tech pressure-redistributing mattress. J Wound Care2007;16:285-9. [PMID: 17708377] CrossrefMedlineGoogle Scholar
    • 76. Sanada HSugama JMatsui YKonya CKitagawa AOkuwa Met alRandomised controlled trial to evaluate a new double-layer air-cell overlay for elderly patients requiring head elevation. J Tissue Viability2003;13:112-4. [PMID: 12889398] CrossrefMedlineGoogle Scholar
    • 77. Conine TADaechsel DLau MSThe role of alternating air and Silicore overlays in preventing decubitus ulcers. Int J Rehabil Res1990;13:57-65. [PMID: 2394540] CrossrefMedlineGoogle Scholar
    • 78. Daechsel DConine TASpecial mattresses: effectiveness in preventing decubitus ulcers in chronic neurologic patients. Arch Phys Med Rehabil1985;66:246-8. [PMID: 3985778] CrossrefMedlineGoogle Scholar
    • 79. Vanderwee KGrypdonck MHDefloor TEffectiveness of an alternating pressure air mattress for the prevention of pressure ulcers. Age Ageing2005;34:261-7. [PMID: 15764622] CrossrefMedlineGoogle Scholar
    • 80. Demarré LBeeckman DVanderwee KDefloor TGrypdonck MVerhaeghe SMulti-stage versus single-stage inflation and deflation cycle for alternating low pressure air mattresses to prevent pressure ulcers in hospitalised patients: a randomised-controlled clinical trial. Int J Nurs Stud2012;49:416-26. [PMID: 22056165] doi:10.1016/j.ijnurstu.2011.10.007 CrossrefMedlineGoogle Scholar
    • 81. Nixon JCranny GIglesias CNelson EAHawkins KPhillips Aet alRandomised, controlled trial of alternating pressure mattresses compared with alternating pressure overlays for the prevention of pressure ulcers: PRESSURE (Pressure Relieving Support Surfaces) trial. BMJ2006;332:1413. [PMID: 16740530] CrossrefMedlineGoogle Scholar
    • 82. Nixon JNelson EACranny GIglesias CPHawkins KCullum NAet alPRESSURE Trial GroupPressure relieving support surfaces: a randomised evaluation. Health Technol Assess2006;10:1-163. [PMID: 16750060] CrossrefMedlineGoogle Scholar
    • 83. Taylor LEvaluating the Pegasus Trinova: a data hierarchy approach. Br J Nurs1999;8:771-4. [PMID: 10670292] CrossrefMedlineGoogle Scholar
    • 84. Donnelly JWinder JKernohan WGStevenson MAn RCT to determine the effect of a heel elevation device in pressure ulcer prevention post-hip fracture. J Wound Care2011;20:309-12. [PMID: 21841719] CrossrefMedlineGoogle Scholar
    • 85. Tymec ACPieper BVollman KA comparison of two pressure-relieving devices on the prevention of heel pressure ulcers. Adv Wound Care1997;10:39-44. [PMID: 9204803] MedlineGoogle Scholar
    • 86. Brienza DKelsey SKarg PAllegretti AOlson MSchmeler Met alA randomized clinical trial on preventing pressure ulcers with wheelchair seat cushions. J Am Geriatr Soc2010;58:2308-14. [PMID: 21070197] doi:10.1111/j.1532-5415.2010.03168.x CrossrefMedlineGoogle Scholar
    • 87. Conine TADaechsel DHershler CPressure sore prophylaxis in elderly patients using slab foam or customized contoured foam wheelchair cushions. OTJR (Thorofare N J)1993;13:101-16. Google Scholar
    • 88. Conine TAHershler CDaechsel DPeel CPearson APressure ulcer prophylaxis in elderly patients using polyurethane foam or Jay wheelchair cushions. Int J Rehabil Res1994;17:123-37. [PMID: 7960335] CrossrefMedlineGoogle Scholar
    • 89. Geyer MJBrienza DMKarg PTrefler EKelsey SA randomized control trial to evaluate pressure-reducing seat cushions for elderly wheelchair users. Adv Skin Wound Care2001;14:120-9. [PMID: 11905977] CrossrefMedlineGoogle Scholar
    • 90. Bourdel-Marchasson IBarateau MRondeau VDequae-Merchadou LSalles-Montaudon NEmeriau JPet alA multi-center trial of the effects of oral nutritional supplementation in critically ill older inpatients. GAGE Group. Groupe Aquitain Geriatrique d'Evaluation. Nutrition2000;16:1-5. [PMID: 10674226] CrossrefMedlineGoogle Scholar
    • 91. Delmi MRapin CHBengoa JMDelmas PDVasey HBonjour JPDietary supplementation in elderly patients with fractured neck of the femur. Lancet1990;335:1013-6. [PMID: 1970070] CrossrefMedlineGoogle Scholar
    • 92. Ek ACUnosson MLarsson JVon Schenck HBjurulf PThe development and healing of pressure sores related to the nutritional state. Clin Nutr1991;10:245-50. [PMID: 16839927] CrossrefMedlineGoogle Scholar
    • 93. Hartgrink HHWille JKönig PHermans JBreslau PJPressure sores and tube feeding in patients with a fracture of the hip: a randomized clinical trial. Clin Nutr1998;17:287-92. [PMID: 10205352] CrossrefMedlineGoogle Scholar
    • 94. Houwing RHRozendaal MWouters-Wesseling WBeulens JWBuskens EHaalboom JRA randomised, double-blind assessment of the effect of nutritional supplementation on the prevention of pressure ulcers in hip-fracture patients. Clin Nutr2003;22:401-5. [PMID: 12880608] CrossrefMedlineGoogle Scholar
    • 95. Theilla MSinger PCohen JDekeyser FA diet enriched in eicosapentanoic acid, gamma-linolenic acid and antioxidants in the prevention of new pressure ulcer formation in critically ill patients with acute lung injury: a randomized, prospective, controlled study. Clin Nutr2007;26:752-7. [PMID: 17933438] CrossrefMedlineGoogle Scholar
    • 96. Moore ZCowman SConroy RMA randomised controlled clinical trial of repositioning, using the 30° tilt, for the prevention of pressure ulcers. J Clin Nurs2011;20:2633-44. [PMID: 21702861] doi:10.1111/j.1365-2702.2011.03736.x CrossrefMedlineGoogle Scholar
    • 97. Bergstrom NHorn SDRapp MPStern ABarrett RWatkiss MTurning for Ulcer ReductioN: a multisite randomized clinical trial in nursing homes. J Am Geriatr Soc2013;61:1705-13. [PMID: 24050454] doi:10.1111/jgs.12440 CrossrefMedlineGoogle Scholar
    • 98. Vanderwee KGrypdonck MHDe Bacquer DDefloor TEffectiveness of turning with unequal time intervals on the incidence of pressure ulcer lesions. J Adv Nurs2007;57:59-68. [PMID: 17184374] CrossrefMedlineGoogle Scholar
    • 99. Brown MMCornwell JWeist JKReducing the risks to the institutionalized elderly: part I. Depersonalization, negative relocation effects, and medical care deficiencies. Part II. Fire, food poisoning, decubitus ulcer and drug abuse. J Gerontol Nurs1981;7:401-7. [PMID: 6912266] CrossrefMedlineGoogle Scholar
    • 100. Smith AMMalone JAPreventing pressure ulcers in institutionalized elders: assessing the effects of small, unscheduled shifts in body position. Decubitus1990;3:20-4. [PMID: 2242233] MedlineGoogle Scholar
    • 101. Brindle CTWegelin JAProphylactic dressing application to reduce pressure ulcer formation in cardiac surgery patients. J Wound Ostomy Continence Nurs2012;39:133-42. [PMID: 22415123] doi:10.1097/WON.0b013e318247cb82 CrossrefMedlineGoogle Scholar
    • 102. Fader MClarke-O'Neill SCook DDean GBrooks RCottenden Aet alManagement of night-time urinary incontinence in residential settings for older people: an investigation into the effects of different pad changing regimes on skin health. J Clin Nurs2003;12:374-86. [PMID: 12709112] CrossrefMedlineGoogle Scholar
    • 103. Scott EMLeaper DJClark MKelly PJEffects of warming therapy on pressure ulcers—a randomized trial. AORN J2001;73:921-7. [PMID: 11378948] CrossrefMedlineGoogle Scholar
    • 104. Torra i Bou JESegovia Gómez TVerdú Soriano JNolasco Bonmatí ARueda López JArboix i Perejamo MThe effectiveness of a hyperoxygenated fatty acid compound in preventing pressure ulcers. J Wound Care2005;14:117-21. [PMID: 15779642] CrossrefMedlineGoogle Scholar
    • 105. Declair VThe usefulness of topical application of essential fatty acids (EFA) to prevent pressure ulcers. Ostomy Wound Manage1997;43:48-52. [PMID: 9233238] MedlineGoogle Scholar
    • 106. Cooper PGray DComparison of two skin care regimes for incontinence. Br J Nurs2001;10:S6. [PMID: 12070396] CrossrefMedlineGoogle Scholar
    • 107. Beeckman DClays EVan Hecke AVanderwee KSchoonhoven LVerhaeghe SA multi-faceted tailored strategy to implement an electronic clinical decision support system for pressure ulcer prevention in nursing homes: a two-armed randomized controlled trial. Int J Nurs Stud2013;50:475-86. [PMID: 23036149] doi:10.1016/j.ijnurstu.2012.09.007 CrossrefMedlineGoogle Scholar
    • 108. Defloor TDe Bacquer DGrypdonck MHThe effect of various combinations of turning and pressure reducing devices on the incidence of pressure ulcers. Int J Nurs Stud2005;42:37-46. [PMID: 15582638] CrossrefMedlineGoogle Scholar
    • 109. Young TThe 30 degree tilt position vs the 90 degree lateral and supine positions in reducing the incidence of non-blanching erythema in a hospital inpatient population: a randomised controlled trial. J Tissue Viability2004;14:88. [PMID: 15709355] CrossrefMedlineGoogle Scholar
    • 110. Pring JMillman PEvaluating pressure-relieving mattresses. J Wound Care1998;7:177-9. [PMID: 9644426] CrossrefMedlineGoogle Scholar
    • 111. Russell LReynolds TMCarr JEvans AHolmes MRandomised controlled trial of two pressure-relieving systems. J Wound Care2000;9:52-5. [PMID: 11933280] CrossrefMedlineGoogle Scholar
    • 112. Nakagami GSanada HKonya CKitagawa ATadaka EMatsuyama YEvaluation of a new pressure ulcer preventive dressing containing ceramide 2 with low frictional outer layer. J Adv Nurs2007;59:520-9. [PMID: 17681081] CrossrefMedlineGoogle Scholar
    • 113. Smith RGEverett ETucker LA double blind trial of silicone barrier cream in the prevention of pressure sores in elderly patients. Journal of Clinical & Experimental Gerontology1986;7:337-46. Google Scholar
    • 114. van der Cammen TJO'Callaghan UWhitefield MPrevention of pressure sores. A comparison of new and old pressure sore treatments. Br J Clin Pract1987;41:1009-11. [PMID: 3332839] MedlineGoogle Scholar
    • 115. Yap TLKennerly SMSimmons MRBuncher CRMiller EKim Jet alMultidimensional team-based intervention using musical cues to reduce odds of facility-acquired pressure ulcers in long-term care: a paired randomized intervention study. J Am Geriatr Soc2013;61:1552-9. [PMID: 24028358] doi:10.1111/jgs.12422 CrossrefMedlineGoogle Scholar
    • 116. Courtney BARuppman JBCooper HMSave our skin: initiative cuts pressure ulcer incidence in half. Nurs Manage2006;37:36. [PMID: 16603946] CrossrefMedlineGoogle Scholar
    • 117. McInerney JAReducing hospital-acquired pressure ulcer prevalence through a focused prevention program. Adv Skin Wound Care2008;21:75-8. [PMID: 18349734] doi:10.1097/01.ASW.0000305410.58350.34 CrossrefMedlineGoogle Scholar
    • 118. Rosen JMittal VDegenholtz HCastle NMulsant BHHulland Set alAbility, incentives, and management feedback: organizational change to reduce pressure ulcers in a nursing home. J Am Med Dir Assoc2006;7:141-6. [PMID: 16503306] CrossrefMedlineGoogle Scholar
    • 119. Tippet AWReducing the incidence of pressure ulcers in nursing home residents: a prospective 6-year evaluation. Ostomy Wound Manage2009;55:52-8. [PMID: 19934464] MedlineGoogle Scholar
    • 120. Xakellis GCFrantz RThe cost of healing pressure ulcers across multiple health care settings. Adv Wound Care1996;9:18-22. [PMID: 9069752] MedlineGoogle Scholar

    Comments

    Amir Qaseem, MD, PhD, Mary Ann Forciea, MD, Linda Humphrey, MD, MPH12 August 2015
    Author's Response
    As Dr. Padula rightfully pointed out, the evidence is inconclusive to link specific pressure ulcer risk assessment tools with outcomes such as reduced pressure ulcers. We also found insufficient evidence to determine the superiority of any one tool over the others or over clinical gestalt for predicting the development of pressure ulcers. The ACP guideline does not recommend against using pressure ulcer risk assessment tools, nor is the intent to discourage this practice. However, in the absence of evidence, we cannot promote the use of these tools over clinical judgment and leave the decision of risk assessment up to the care provider.

    Dr. Kowalski brings up the important point that developing performance measures for many chronic conditions, such as preventing pressure ulcers, is challenging. We agree that performance measures should be based on robust scientific evidence in the areas that shows clinical benefit rather than on statistical data or expert opinion.


    Mary Ann Forciea, MD, FACP
    University of Pennsylvania Health System, Philadelphia, PA

    Linda L. Humphrey, MD, MPH, MACP
    Oregon Health and Science University, Portland, OR

    Amir Qaseem, MD, PhD, MHA, FACP
    American College of Physicians, Philadelphia, PA
    Todd J. Kowalski, MD, Michelle L. Tilson, CWOCN, Sonya A. Brickner, CWOCN, CFCN10 April 2015
    In Reply: Risk assessment and prevention of pressure ulcers: a clinical practice guideline from the American College of Physicians
    TO THE EDITOR: The American College of Physicians clinical practice guidelines for prevention, assessment, and treatment of pressure ulcers (1, 2) highlight the dearth of evidence available to guide clinicians and health systems. This is salient because pressure ulcers have been coined “never events.” Since 2008 Centers for Medicare & Medicaid Services (CMS) has withheld reimbursement for treatment of hospital-acquired stage III and IV pressure ulcers, but—in contrast to other disease states for which evidence strongly suggests that better processes yield better outcomes—pressure ulcer rates have not improved (3). Furthermore, 100% of expert voting attendees at a recent National Pressure Ulcer Advisory Panel (NPUAP) consensus conference believe that patient situations may render pressure ulcers unavoidable (4).
    More surprising is the tenuous evidence upon which the staging system used for pressure ulcers is based, in particular the NPUAP pressure ulcer stage of “Suspected Deep Tissue Injury (DTI)–depth unknown.” In 2007, the NPUAP added the DTI stage in order to engender more aggressive treatment interventions. At that time not a single published study validated the definition or outlined the prognostic significance of the newly defined entity. Since then, research suggests that < 1% of skin lesions labeled “DTI” by certified wound nurses may progress to stage III ulcers (5). Expert wound diagnosticians attending a 2007 NPUAP consensus conference achieved only 60% accuracy when classifying pressure ulcers and associated dermal lesions using the new definitions. Documentation and diagnosis of DTI is further obscured because no ICD-9 nor ICD-10 codes are specific to DTI. The NPUAP recommends that DTI be coded as “pressure ulcer, unstageable”; however, the Agency for Healthcare Research and Quality considers hospital-acquired unstageable pressure ulcers a Patient Safety Indicator (PSI)—a reflection of quality of care. In turn, PSI data are used by the CMS Value-Based Purchasing program to determine whether to pay or withhold payment for services. Thus, DTI documentation not only conveys uncertain clinical ramifications but also may result in adverse quality and fiscal metrics for hospital systems. Overall, these findings highlight that pressure ulcers ought not be utilized as hospital-based quality measures until evidence-based interventions that yield improved outcomes are available, particularly when public reporting and financial sanctions may be tied to them. We recommend that DTI undergo rigorous study before it is considered a distinct clinical entity and that the condition not be associated with any quality or reimbursement metrics.

    Todd J. Kowalski, MD
    Michelle L. Tilson, CWOCN
    Sonya A. Brickner. CWOCN, CFCN
    Gundersen Health System
    La Crosse, WI 54601

    References
    1. Qaseem A, Mir TP, Starkey M, Denberg TD, Clinical Guidelines Committee of the American College of Physicians. Risk assessment and prevention of pressure ulcers: a clinical practice guideline from the American College of Physicians. Ann Intern Med. 2015;162(5):359-69. [PMID: 25732278]
    2. Qaseem A, Humphrey LL, Forciea MA, Starkey M, Denberg TD, Clinical Guidelines Committee of the American College of Physicians. Treatment of pressure ulcers: a clinical practice guideline from the American College of Physicians. Ann Intern Med. 2015;162(5):370-9. [PMID: 25732279]
    3. Waters TM, Daniels MJ, Bazzoli GJ, Perencevich E, Dunton N, Staggs VS, et al. Effect of Medicare's nonpayment for hospital-acquired conditions: lessons for future policy. JAMA Intern Med. 2015;175(3):347-54. [PMID: 25559166]
    4. Black JM, Edsberg LE, Baharestani MM, Langemo D, Goldberg M, McNichol L, et al. Pressure ulcers: avoidable or unavoidable? Results of the National Pressure Ulcer Advisory Panel Consensus Conference. Ostomy Wound Manage. 2011;57(2):24-37. [PMID: 21350270]
    5. Sullivan R. A two-year retrospective review of suspected deep tissue injury evolution in adult acute care patients. Ostomy Wound Manage. 2013;59(9):30-9. [PMID: 24018390]


    Jill Monfre PhD RN CWOCN, Justin Endo MD7 April 2015
    In Reply: Risk Assessment
    The American College of Physicians (ACP) has improved physician awareness with their pressure ulcer (PrU) guidelines. We agree with the comments from Padula et al. in response to the ACP guidelines. The collaboratively published guideline by the European Pressure Ulcer Advisory Panel (EPUAP), National Pressure Ulcer Advisory Panel (NPUAP), and the Pan Pacific Pressure Injury Alliance (PPPIA) is an excellent, comprehensive and updated reference. (1)
    While we await further research, what should our role as internists be in PrU management, and what can the ACP do to help us implement best practice based on limited evidence?
    In a study by Cox et al., two-thirds of surveyed physicians believed that their role was important in preventing PrU, but less than half reported feeling adequately trained during residency. (2) Less than 40% ever attended a continuing education program or lecture about PrU. Over 80% of physicians did not understand the purpose of a pressure redistribution mattresses. This survey suggests that physicians might benefit from receiving general background information about PrU in addition to the granular recommendations of published clinical guidelines. We hope that ACP continues to work to fill this practical knowledge gap, which, in turn, might help physicians co-manage PrU and communicate with interdisciplinary wound care teams.

    References
    1. European Pressure Ulcer Advisory Panel NPUAP, Pan Pacific Pressure Injury Alliance, 2014;Pages. Accessed at Cambridge Media at http://www.npuap.org/wp-content/uploads/2014/08/Updated-10-16-14-Quick-Reference-Guide-DIGITAL-NPUAP-EPUAP-PPPIA-16Oct2014.pdf.
    2. Cox J, Roche S, Gandhi N. Critical care physicians: attitudes, beliefs, and knowledge about pressure ulcers. Adv Skin Wound Care. 2013;26(4):168-76.

    William V. Padula Ph.D. M.S., C. Tod Brindle R.N. M.S.N. C.W.O.C.N, Mary Beth F. Makic Ph.D. R.N.26 March 2015
    In Reply: Risk Assessment and Prevention of Pressure Ulcers
    TO THE EDITOR: The ACP guidelines by Qaseem and colleagues effectively summarize the strength of evidence supporting pressure ulcer (PrU) prevention, which is only weak to moderate in most cases.(1) We agree with their recommendation that clinicians should risk-assess all hospitalized patients to identify those at-risk for PrUs.(1) How this first step is implemented is important in order to initiate other components of evidence-based practices (EBPs) as indicated by the Wound, Ostomy and Continence Nurses Society (WOCN) as well as the National Pressure Ulcer Advisory Panel (NPUAP), European Pressure Ulcer Advisory Panel (EPUAP), and Pan Pacific Pressure Injury Alliance (PPPIA) in the 2014 International Guidelines for PrU prevention.(2,3)

    Qaseem et al. reviewed several risk-assessment instruments, including the Braden, Cubbin and Jackson, Norton, Ramstadius and Waterlow scales, and found that the Braden and Norton scales possessed good quality evidence for prognosis of risk.(1) However, these instruments lacked subscales that would differentiate patient risk on the basis of socio-demographics or clinical setting.

    In addition, a recent meta-analysis by Garcia-Fernandez and colleagues found that the Braden Scale has the most validation studies and shows high-capacity to predict PrUs.(3) Good predictive capacity was found for the Norton scale as well.(3) In fact, this meta-analysis of four studies with a pooled sample of 1500 patients determined that clinical judgment alone achieved inadequate PrU risk-assessment.

    While current evidence is inconclusive about the direct association between risk-assessment and PrU reductions, the evidence does support the use of validated PrU risk-assessment tools such as Braden or Norton scales in conjunction with clinical judgement.(2-4) The ACP guidelines should not deter any providers from using these instruments, even those with “expert gestalt.” Staff nurses, for instance, should become comfortable using the best-available structured instruments to carry out risk-assessment. Likewise, those with clinical expertise who are revered by others of less experience should strive to establish a benchmark for best-practices in quality improvement by synergizing their judgment with the strengths of risk-assessment instruments.(5)

    Clinical practice guidelines such as these preventive recommendations from the ACP need to align providers with national best-practices and the use of structured instruments even when the science to support their use is continuing to grow and strengthen. As the field of nursing continues to investigate improved population-based risk-assessment instruments as part of EBPs, training providers to use structured instruments as opposed to clinical judgment will make a transition to modern instruments more seamless.

    REFERENCES

    1. Qaseem A, Mir TP, Starkey M, Denberg TD; Clinical Guidelines Committee of the American College of Physicians. Risk assessment and prevention of pressure ulcers: a clinical practice guideline from the American College of Physicians. Ann Intern Med. 2015 Mar 3;162(5):359-69.

    2. National Pressure Ulcer Advisory Panel (NPUAP), European Pressure Ulcer Advisory Panel (EPUAP) and Pan Pacific Pressure Injury Alliance (PPPIA). Prevention and Treatment of Pressure Ulcers: Clinical Practice Guideline. Emily Haesler (Ed.). Cambridge Media: Perth, Australia; 2014.

    3. Ratliff CR, Tomaselli N. WOCN update on evidence-based guideline for pressure ulcers. J Wound Ostomy Continence Nurs. 2010; 37(5):459-60.

    4. Garcia-Fernandez FP, Pancorbo-Hidalgo PL, Agreda JS. Predictive capacity of risk assessment scales and clinical judgement for pressure ulcers: a meta-analysis. J Wound Ostomy Continence Nurs. 2014; 41(1): 24-34.

    5. Padula WV, Mishra MK, Makic MB, Valuck RJ. A framework of quality improvement interventions to implement evidence-based practices for pressure ulcer prevention. Adv Skin Wound Care. 2014 Jun; 27(6): 280-284.