Do pressure ulcer risk assessment scales improve clinical practice?

Using PURPOSE-T in clinical practice: A realist evaluation

AIM

To explain how the clinical and organisational context influenced the way the Pressure Ulcer Risk Primary or Secondary Evaluation Tool (PURPOSE-T) is used by nursing staff to support their clinical judgement and decision making about care planning and delivery.

METHODS

A realist process evaluation was undertaken in a large acute hospital trust using mixed methods incorporating organisational policy review, staff semi-structured, ethnographic observation of clinical care and patient record review. Approximately 75 h of ethnographic field work involving 72 patients, 15 patient record reviews and 16 staff interviews were undertaken on 4 wards.

FINDINGS

Findings suggest PURPOSE-T assisted nurses differently depending on their level of experience. Those with less experience use it as an educational guide, while those with more experience made an initial clinical judgement and used PURPOSE-T as a safety net to ensure they hadn't missed anything. Nurses were concerned about demonstrating good documentation of assessment, care planning and delivery in order to underpin consistent communication about care and because they had an underlying fear of being blamed if things went wrong. There is an array of other contextual features that impact the planning and delivery of pressure area care that go beyond the use of PURPOSE-T alone, including systematic equipment provision, competing patient safety initiatives and rehabilitation requirements.

CONCLUSION

The findings reinforce the assertion that PU-RAIs are complex interventions and could inform the development of a more integrated system of care which takes into account the contextual features associated with PU prevention in modern hospitals.

Complementing Braden scale for pressure ulcer risk with clinical and demographic-related factors in a large cohort of hospitalized Italian patients

AIMS

To determine the prevalence, risk, and determinants of pressure ulcer risk in a large cohort of hospitalized patients.

DESIGN

A prospective cross-sectional study with data collection in January 2023.

METHODS

Registered nurses collected data from 798 patients admitted to 27 health care units of an Italian hospital. The pressure ulcer risk was assessed using the Braden scale. The presence of comorbidities was collected from clinical reports. Obesity was assessed according to international indicators (Body Mass Index). The receiver operating characteristic (ROC) curve was used to estimate the sensitivity and specificity of different Braden scores for identifying participants with pressure ulcers.

RESULTS

The prevalence of pressure ulcers was 9.5%, and 57.4% of the sample were at risk of developing pressure ulcers. The area under the ROC curve was 0.88. The best sensitivity and specificity were found for a Braden cutoff score of 15.5 (sensibility = 0.76; specificity = 0.85). The determinants of lower Braden scores were older age (p < 0.001), comorbidities (p < 0.001), wounds of other nature (p = 0.001), urinary incontinence (p < 0.001), fecal incontinence (p < 0.001), and urinary catheterization (p < 0.001).

CONCLUSION

Several demographic factors and specific clinical indicators have been identified as determinants of the risk of developing pressure ulcers, which are easily ascertainable by healthcare providers; thus, they may routinely complement the Braden Scale in the assessment of pressure ulcer risk in order to reinforce and accelerate clinical judgment.

The theory and practice of pressure ulcer/injury risk assessment: a critical discussion

Pressure ulcer/injury (PU) risk assessment is widely considered an essential component in clinical practice. It is a complex and broad concept that includes different approaches, such as clinical judgement, using standardised risk assessment instruments, skin assessments, or using devices to measure skin or tissue properties. A distinction between PU risk assessment and early detection is important. PU risk measures the individual's susceptibility to developing a PU under a specific exposure (primary prevention), and early detection includes the assessment of early (sub)clinical signs and symptoms to prevent progression and to support healing (secondary prevention). PU risk is measured using prognostic/risk factors or prognostic models. Every risk estimate is a probability statement containing varying degrees of uncertainty. It therefore follows that every clinical decision based on risk estimates also contains uncertainty. PU risk assessment and prevention is a complex intervention, where delivery contains several interacting components. There is a huge body of evidence indicating that risk assessment and its outcomes, the selection of preventive interventions and PU incidence are not well connected. Methods for prognostic model development and testing in PU risk research must be improved and follow state-of-the-art methodological standards. Despite these challenges, we do have substantial knowledge about PU risk factors that helps us to make better clinical decisions. An important next step in the development of PU risk prediction might be the combination of clinical and other predictors for more individualised care. Any prognostic test or procedure must lead to better prevention at an acceptable cost.

Inflammatory biomarkers in sebum for identifying skin damage in patients with a Stage I pressure ulcer in the pelvic region: A single centre observational, longitudinal cohort study with elderly patients

Pressure Ulcers (PU) are a major burden for affected patients and healthcare providers. Current detection methods involve visual assessments of the skin by healthcare professionals. This has been shown to be subjective and unreliable, with challenges associated with identifying erythema in darker colour skin. Although there exists a number of promising non-invasive biophysical techniques such as ultrasound, capacitance measurements, and thermography, the present study focuses on directly measuring the changes in the inflammatory status of the skin and underlying tissues. Therefore, in this study, we aim to analyse inflammatory cytokines collected through non-invasive sampling techniques to detect early signs of skin damage. Thirty hospitalised patients presenting with Stage I PU were recruited to evaluate the inflammatory response of skin at the site of damage and an adjacent healthy control site. Sebutapes were collected over three sessions to investigate the temporal changes in the inflammatory response. The panel of cytokines investigated included high-abundance cytokines, namely, IL-1α and IL-1RA, and low abundance cytokines; IL-6, IL-8, TNF-α, INF-γ, IL-33, IL-1β and G-CSF. Spatial and temporal differences between sites were assessed and thresholds were used to determine the sensitivity and specificity of each biomarker. The results suggest significant (P < .05) spatial changes in the inflammatory response, with upregulation of IL-1α, IL-8, and G-CSF as well as down-regulation of IL-1RA over the Stage I PU compared with the adjacent control site. There were no significant temporal differences between the three sessions. Selected cytokines, namely, IL-1α, IL-1RA, IL-8, G-CSF, and the ratio IL-1α/IL-1RA offered clear delineation in the classification of healthy and Stage-I PU skin sites, with receiver operating characteristic curves demonstrating high sensitivity and specificity. There were limited influences of intrinsic and extrinsic factors on the biomarker response. Inflammatory markers provided a high level of discrimination between the sites presenting with Stage I PU and an adjacent healthy skin site, in a cohort of elderly inpatients. Indeed, the ratio of IL-1α to IL-1RA provided the highest sensitivity and specificity, indicative that inflammatory homeostasis is affected at the PU site. There was a marginal influence of intrinsic and extrinsic factors, demonstrating the localised effects of the inflammation. Further studies are required to investigate the potential of inflammatory cytokines incorporated within Point of Care technologies, to support routine clinical use.

The Shieh Score as a Risk Assessment Instrument for Reducing Hospital-Acquired Pressure Injuries: A Prospective Cohort Study

PURPOSE

The purpose of this study was to evaluate the Shieh Score's effectiveness in decreasing the rate of hospital-acquired pressure injuries when combined with an early warning notification system and standard order set of preventative measures.

DESIGN

This was a prospective cohort study.

SUBJECTS AND SETTING

This target population was nonpregnant, adult, hospitalized patients on inpatient and observation status at a tertiary hospital (Kaiser Permanente, Baldwin Park, California) during the 2020 year of the COVID-19 pandemic.

METHODS

A new, risk assessment instrument, the Shieh Score, was developed in 2019 to predict hospitalized patients at high risk for pressure injuries. Data collection occurred between January 21, 2020, and December 31, 2020. When a hospital patient met the high-risk criteria for the Shieh Score, a provider-ordered pink-colored sheet of paper titled "Skin at Risk" was hung at the head of the bed and a standard order set of pressure injury preventative measures was implemented by nursing staff.

RESULTS

Implementation of the program (Shieh Score, early warning system, and standard order set for preventive interventions) resulted in a 38% reduction in the annual hospital-acquired pressure injury rate from a mean incidence rate of 1.03 to 0.64 hospital-acquired pressure injuries per 1000 patient-days measured for the year 2020.

CONCLUSION

The Shieh Score is a pressure injury risk assessment instrument, which effectively identifies patients at high risk for hospital-acquired pressure injuries and decreases the hospital-acquired pressure injury rate when combined with an early warning notification system and standard order set.

Nursing Assessment of Pressure Injury Risk with the Braden Scale Validated against Sensor-Based Measurement of Movement

Nursing staff assessment to accurately identify pressure injury (PrI) risk is a hallmark in PrI prevention care. Risk scores from the Braden Scale for Predicting Pressure Sore Risk^© (hereafter Braden), a commonly used tool for assessing PrI risk, signal the need for preventative care. Braden Mobility, Activity, and Sensory Perception subscale subgroups associated with repositioning movement features help identify preventative strategies that minimize pressure intensity and duration. Evidence confirming subscale rating accuracy is needed. This study compared assessment score accuracy with movement data collected via accelerometer sensor. Sample included 913 nursing home residents from the Turn Everyone and Move for Pressure Ulcer Prevention (TEAM-UP) cluster randomized trial. Movements and Braden Mobility and Activity subscale scores were evaluated for significant differences and associations. Mobility subgroups explained a small-medium amount of variance in mean lying and upright movement features (0.002 ≤ R² ≤ 0.195). Activity subgroups explained a small-medium amount of variance in mean lying, upright, and ambulating movements (0.016 ≤ R² ≤ 0.248). Significant associations occurred among subscale subgroups and most movements. Nursing assessment ratings using Braden scale's Mobility and Activity subscale scores are accurate indicators of actual repositioning movements and can be relied upon for PrI prevention care planning for older adults.

Risk Factors for Hospital-Acquired Pressure Injury in Adult Critical Care Patients

BACKGROUND

Accurately measuring the risk of pressure injury remains the most important step for effective prevention and intervention. Relative contributions of risk factors for the incidence of pressure injury in adult critical care patients are not well understood.

OBJECTIVE

To develop and validate a model to identify risk factors associated with hospital-acquired pressure injuries among adult critical care patients.

METHODS

This retrospective cohort study included 23 806 adult patients (28 480 encounters) with an intensive care unit stay at an academic quaternary care center. Patient encounters were randomly split (7:3) into training and validation sets. The training set was used to develop a multivariable logistic regression model using the least absolute shrinkage and selection operator method. The model's performance was evaluated with the validation set.

RESULTS

Independent risk factors identified by logistic regression were length of hospital stay, preexisting diabetes, preexisting renal failure, maximum arterial carbon dioxide pressure, minimum arterial oxygen pressure, hypotension, gastrointestinal bleeding, cellulitis, and minimum Braden Scale score of 14 or less. On validation, the model differentiated between patients with and without pressure injury, with area under the receiver operating characteristic curve of 0.85, and performed better than a model with Braden Scale score alone (P < .001).

CONCLUSIONS

A model that identified risk factors for hospital-acquired pressure injury among adult critical care patients was developed and validated using a large data set of clinical variables. This model may aid in selecting high-risk patients for focused interventions to prevent formation of hospital-acquired pressure injuries.

Dynamic Risk Prediction for Hospital-Acquired Pressure Injury in Adult Critical Care Patients

Supplemental Digital Content is available in the text.

Accurately measuring the risk of pressure injury remains the most important step for effective prevention and intervention. Time-dependent risk factors for pressure injury development in the adult intensive care unit setting are not well understood.

The biomechanical efficacy of a hydrogel-based dressing in preventing facial medical device-related pressure ulcers

Continuous positive airway pressure masks for breathing assistance are used widely during the coronavirus pandemic. Nonetheless, these masks endanger the viability of facial tissues even after a few hours because of the sustained tissue deformations and extreme microclimate conditions. The risk of developing such device-related pressure ulcers/injuries can be reduced through suitable cushioning materials at the mask-skin interface, to alleviate localised contact forces. Here, we determined the facial tissue loading state under an oral-nasal mask while using hydrogel-based dressing cuts (Paul Hartmann AG, Heidenheim, Germany) for prophylaxis, which is a new concept in prevention of device-related injuries. For this purpose, we measured the compressive mask-skin contact forces at the nasal bridge, cheeks, and chin with vs without these dressing cuts and fed these data to a finite element, adult head model. Model variants were developed to compare strain energy densities and effective stresses in skin and through the facial tissue depth, with vs without the dressing cuts. We found that the dry (new) dressing cuts reduced tissue exposures to loads (above the median loading level) by at least 30% at the nasal bridge and by up to 99% at the cheeks, across the tissue depth. These dressing cuts were further able to maintain at least 65% and 89% of their protective capacity under moisture at the nasal bridge and cheeks, respectively. The hydrogel-based dressings demonstrated protective efficacy at all the tested facial sites but performed the best at the nasal bridge and cheeks, which are at the greatest injury risk.

Brief intermittent pressure off-loading on skin microclimate in healthy adults - A descriptive-correlational pilot study

AIM

This study examined microclimate changes to the skin as a result of pressure over a 1 h period. The results were compared to skin parameter results following brief consecutive off-loading of pressure-prone areas.

DESIGN

A descriptive-correlational pilot study was undertaken.

METHOD

A convenience sample of 41 healthy adults aged 18-60 years was recruited. Participants engaged in four 1 h data collection sessions. The sessions were conducted in both semi-recumbent and supine positions. Measures of erythema, melanin, stratum corneum hydration, and skin temperature were taken at pressure-prone areas at baseline and after 1 h in an uninterrupted method (continuous pressure-loading) and every 10 min in an interrupted method (brief off-loading). The Corneometer and Mexameter (Courage + Khazaka Electronics GMbH, 2013) and Exergen DermaTemp DT-1001 RS Infrared Thermographic Scanner (Exergen Corporation, 2008) provided a digital appraisal of skin parameters. Intraclass correlation coefficients (ICC) were calculated to indicate test-retest reliability and absolute agreement of results between the two methods.

RESULTS

Strong agreement between the interrupted and uninterrupted method was observed with ICCs ranging from 0.72 to 0.99 (supine) and 0.62-0.99 (semi-recumbent). Endpoint measures tended to be higher compared to baseline measures for all skin parameters. Differences in skin parameters results by anatomical location were evident particularly for erythema and stratum corneum hydration; the elbows and heels yielded lower scores compared to the sacrum. Erythema had the most variation across methods. The supine and semi-recumbent positions had negligible effect on measured skin parameters.

CONCLUSIONS

Minimal variation between skin parameter results indicates that brief off-loading in the interrupted method did not significantly change the outcomes; minor shifts in positioning do not alter changes to the skin from pressure. Skin parameters varied by anatomical location and changed over a 1 h period of pressure-loading.

RELEVANCE TO CLINICAL PRACTICE

Biophysical techniques may be able to assist accurate assessment of skin microclimate and skin colour. As brief off-loading (interruptions) to enable skin parameter measurement does not alter skin readings, researchers can proceed with some confidence regarding the use of this protocol in future studies assessing skin parameters. This study data provides a library of cutaneous changes at pressure-prone areas of healthy adults and is expected to inform innovative approaches to pressure injury risk assessment.

Searching for Programme theories for a realist evaluation: a case study comparing an academic database search and a simple Google search

BACKGROUND

Realist methodologies are increasingly being used to evaluate complex interventions in health and social care. Programme theory (ideas and assumptions of how a particular intervention works) development is the first step in a realist evaluation or a realist synthesis, with literature reviews providing important evidence to support this. Deciding how to search for programme theories is challenging and there is limited guidance available. Using an example of identifying programme theories for a realist evaluation of Pressure Ulcer Risk Assessment Instruments in clinical practice, the authors explore and compare several different approaches to literature searching and highlight important methodological considerations for those embarking on a programme theory review.

METHODS

We compared the performance of an academic database search with a simple Google search and developed an optimised search strategy for the identification primary references (i.e. documents providing the clearest examples of programme theories) associated with the use of Pressure Ulcer Risk Assessment Instruments (PU-RAIs). We identified the number of primary references and the total number of references retrieved per source. We then calculated the number needed to read (NNR) expressed as the total number of titles and abstracts screened to identify one relevant reference from each source.

RESULTS

The academic database search (comprising CINAHL, The Cochrane Library, EMBASE, HMIC, Medline) identified 2 /10 primary references with a NNR of 1395.The Google search identified 7/10 primary references with a NNR of 10.1. The combined NNR was 286.3. The optimised search combining Google and CINAHL identified 10/10 primary references with a NNR of 40.2.

CONCLUSION

The striking difference between the efficiency of the review's academic database and Google searches in finding relevant references prompted an in-depth comparison of the two types of search. The findings indicate the importance of including grey literature sources such as Google in this particular programme theory search, while acknowledging the need for transparency of methods. Further research is needed to facilitate improved guidance for programme theory searches to enhance practice in the realist field and to save researcher time and therefore resource.

A blinded clinical study using a subepidermal moisture biocapacitance measurement device for early detection of pressure injuries

This study aimed to evaluate the sensitivity and specificity of subepidermal moisture (SEM), a biomarker employed for early detection of pressure injuries (PI), compared to the "Gold Standard" of clinical skin and tissue assessment (STA), and to characterize the timing of SEM changes relative to the diagnosis of a PI. This blinded, longitudinal, prospective clinical study enrolled 189 patients (n = 182 in intent-to-treat [ITT]) at acute and post-acute sites (9 USA, 3 UK). Data were collected from patients' heels and sacrums using a biocapacitance measurement device beginning at admission and continuing for a minimum of 6 days to: (a) the patient developing a PI, (b) discharge from care, or (c) a maximum of 21 days. Standard of care clinical interventions prevailed, uninterrupted. Principal investigators oversaw the study at each site. Blinded Generalists gathered SEM data, and blinded Specialists diagnosed the presence or absence of PIs. Of the ITT population, 26.4% developed a PI during the study; 66.7% classified as Stage 1 injuries, 23% deep tissue injuries, the remaining being Stage 2 or Unstageable. Sensitivity was 87.5% (95% CI: 74.8%-95.3%) and specificity was 32.9% (95% CI: 28.3%-37.8%). Area under the receiver operating characteristic curve (AUC) was 0.6713 (95% CI 0.5969-0.7457, P < .001). SEM changes were observed 4.7 (± 2.4 days) earlier than diagnosis of a PI via STA alone. Latency between the SEM biomarker and later onset of a PI, in combination with standard of care interventions administered to at-risk patients, may have confounded specificity. Aggregate SEM sensitivity and specificity and 67.13% AUC exceeded that of clinical judgment alone. While acknowledging specificity limitations, these data suggest that SEM biocapacitance measures can complement STAs, facilitate earlier identification of the risk of specific anatomies developing PIs, and inform earlier anatomy-specific intervention decisions than STAs alone. Future work should include cost-consequence analyses of SEM informed interventions.

A clinimetric analysis of the Pressure Ulcer Risk Primary or Secondary Evaluation Tool: PURPOSE-T

The assessment of patients' risk for developing pressure ulcers is a routine and fundamental nursing process undertaken to prevent avoidable harm to patients in all care settings. Many risk assessment tools are currently used in clinical practice, however no individual tool is recommended by advisory bodies such as the National Institute for Health and Care Excellence or the European Pressure Ulcer Advisory Panel. The evidence base on the value of structured risk assessment tools in reducing the incidence or severity of pressure ulcers is poor. This purpose of this article is to provide a clinimetric analysis of the recently developed Pressure Ulcer Risk Primary or Secondary Evaluation Tool (PURPOSE-T) and identify areas for future research to improve the utility of structured risk assessment in identifying patients at risk of developing pressure ulcers.

[Pressure ulcer risk assessment and preventive measures in mobile / chairfast / bedfast hospital patients]

Pressure ulcer risk assessment and preventive measures in mobile / chairfast / bedfast hospital patients Abstract. Background: Internationally, it is recommended to use the clinical view with a validated instrument for pressure ulcer risk assessment to determine subsequent measures. We could not identify any study investigating risk assessment and subsequent measures for mobile / chairfast / bedfast patients. Aim of the study: To identify the degree of agreement between the Bradenscale and clinical view regarding pressure ulcer risk in mobile / chairfast / bedfast patients and subsequent preventive measures. Method: Data from 5274 hospital patients from the "Nursing quality measurement 2015", a cross-sectional multicenter study, were collected. Results: Out of all mobile, chairfast or bedfast patients assessed as at risk of pressure ulcer with the Bradenscale, 22.3 % (mobile), 61.7 % (chairfast) and 86.1 % (bedfast) were also assessed as at risk by clinical view. More than 3 / 4 of the chairfast patients that were not at risk according to clinical view received preventive measures. Conclusion: The consequences over time for patients that received no measures due to discrepancies in the risk assessments should be focused. Furthermore the evaluation of measures in patients without a risk of pressure ulcer is of critical importance. The aspect of patient mobility deserves special attention due to the low agreement of the risk assessments in chairfast and mobile patients.

Two-Hourly Repositioning for Prevention of Pressure Ulcers in the Elderly: Patient Safety or Elder Abuse?

For decades, aged care facility residents at risk of pressure ulcers (PUs) have been repositioned at two-hour intervals, twenty-four-hours-a-day, seven-days-a-week (24/7). Yet, PUs still develop. We used a cross-sectional survey of eighty randomly selected medical records of residents aged ≥ 65 years from eight Australian Residential Aged Care Facilities (RACFs) to determine the number of residents at risk of PUs, the use of two-hourly repositioning, and the presence of PUs in the last week of life. Despite 91 per cent (73/80) of residents identified as being at risk of PUs and repositioned two-hourly 24/7, 34 per cent (25/73) died with one or more PUs. Behaviours of concern were noted in 72 per cent (58/80) of residents of whom 38 per cent (22/58) were restrained. Dementia was diagnosed in 70 per cent (56/80) of residents. The prevalence of behaviours of concern displayed by residents with dementia was significantly greater than by residents without dementia (82 per cent v 50 per cent, p = 0.028). The rate of restraining residents with dementia was similar to the rate in residents without dementia. Two-hourly repositioning failed to prevent PUs in a third of at-risk residents and may breach the rights of all residents who were repositioned two-hourly. Repositioning and restraining may be unlawful. Rather than only repositioning residents two-hourly, we recommend every resident be provided with an alternating pressure air mattress.

Using the Braden subscales to assess risk of pressure injuries in adult patients: A retrospective case-control study

The aim of this study was to compare the pressure injury risk predictability between the individual Braden subscales and the total Braden scale in adult inpatients in Singapore. A retrospective 1:1 case-control design was used from a sample of 199 patient medical records. Clinical data were collected from a local university hospital's medical records database. The results showed that, among the six subscales, the activity subscale was the most sensitive and specific in predicting pressure injury (PI). However, the overall results showed that the Braden scale remained the most predictive of PI development in comparison with the individual subscales. The study also found that, among the Singaporean patients, the Braden cut-off score for PI risk was 17 compared with the current cut-off score of 18. Therefore, it may be relevant for local tertiary hospitals to review their respective Braden cut-off scores as the study results indicate an over-prediction of PI risk, which leads to unnecessary utilisation of resources. The hospital may also consider developing a PI prevention bundle comprising commonly used preventive interventions when at least one Braden subscale reflects a suboptimal score.

Microclimate: A critical review in the context of pressure ulcer prevention

Pressure ulcers are caused by sustained mechanical loading and deformation of the skin and subcutaneous layers between internal stiff anatomical structures and external surfaces or devices. In addition, the skin microclimate (temperature, humidity and airflow next to the skin surface) is an indirect pressure ulcer risk factor. Temperature and humidity affect the structure and function of the skin increasing or lowering possible damage thresholds for the skin and underlying soft tissues. From a pressure ulcer prevention research perspective, the effects of humidity and temperature next to the skin surface are inextricably linked to concurrent soft tissue deformation. Direct clinical evidence supporting the association between microclimate and pressure ulceration is sparse and of high risk of bias. Currently, it is recommended to keep the skin dry and cool and/or to allow recovery periods between phases of occlusion. The stratum corneum must be prevented from becoming overhydrated or from drying out but exact ranges of an acceptable microclimate are unknown. Therefore, vague terms like 'microclimate management' should be avoided but product and microclimate characteristics should be explicitly stated to allow an informed decision making. Pressure ulcer prevention interventions like repositioning, the use of special support surfaces, cushions, and prophylactic dressings are effective only if they reduce sustained deformations in soft tissues. This mode of action outweighs possible undesirable microclimate properties. As long as uncertainty exists efforts must be taken to use as less occlusive materials as possible. There seems to be individual intrinsic characteristics making patients more vulnerable to microclimate effects.

Predictive accuracy of the Braden Q Scale in risk assessment for paediatric pressure ulcer: A meta-analysis

Aims

Paediatric pressure ulcers are a serious problem to healthcare service. Thus, effective and early identification of the risk of developing pressure ulcer is essential. The Braden Q scale is a widely used tool in the risk assessment of paediatric pressure ulcer, but its predictive power is controversial. Hence, we performed a meta-analysis to evaluate the predictive power of the Braden Q scale for pressure ulcer in hospitalised children and offer recommendations for clinical decision.

Methods

Studies that evaluated the predictive power of the Braden Q scale were searched through databases in English and Chinese, including Medline, Cochrane Library, Embase, CINAHL, SinoMed, CNKI, Wangfang and VIP. The studies were screened by two independent reviewers. QUADAS-2 was used to assess the risk of bias of eligible studies. Demographic data and predictive value indices were extracted. The pooled sensitivity, specificity and receiver operating characteristics (ROC) were calculated by MetaDiSc 1.4 using random-effects models.

Results

Cochran Q = 26.13 (P = 0.0036) indicated the existence of heterogeneity; the I² for pooled DOR was 61.7%, suggesting significant heterogeneity among the included studies. The pooled sensitivity and specificity were 0.73 (95% CI: 0.67–0.78) and 0.61 (95% CI: 0. 59–0.63), respectively, yielding a combined DOR of 3.47 (95% CI: 2–6.01). The area under the ROC curve was 0.7078 ± 0.0421, and the overall diagnostic accuracy (Q*) was 0.6591 ± 0.0337. Sensitivity analysis showed the results were robust.

Conclusion

The Braden Q scale has moderate predictive validity with medium sensitivity and low specificity for pressure ulcers in hospitalised children. Further development and modification of this tool for use in paediatric population are warranted.

Clinical evaluation of a new pressure ulcer risk assessment instrument, the Pressure Ulcer Risk Primary or Secondary Evaluation Tool (PURPOSE T)

Aim

To test the psychometric properties and clinical usability of a new Pressure Ulcer Risk Assessment Instrument including inter‐rater and test–retest reliability, convergent validity and data completeness.

Background

Methodological and practical limitations associated with traditional Pressure Ulcer Risk Assessment Instruments, prompted a programme to work to develop a new instrument, as part of the National Institute for Health Research funded, Pressure UlceR Programme Of reSEarch (RP‐PG‐0407‐10056).

Design

Observational field test.

Method

For this clinical evaluation 230 patients were purposefully sampled across four broad levels of pressure ulcer risk with representation from four secondary care and four community NHS Trusts in England. Blinded and simultaneous paired (ward/community nurse and expert nurse) PURPOSE‐T assessments were undertaken. Follow‐up retest was undertaken by the expert nurse. Field notes of PURPOSE‐T use were collected. Data were collected October 2012–January 2013.

Results

The clinical evaluation demonstrated “very good” (kappa) inter‐rater and test–retest agreement for PURPOSE‐T assessment decision overall. The percentage agreement for “problem/no problem” was over 75% for the main risk factors. Convergent validity demonstrated moderate to high associations with other measures of similar constructs.

Conclusion

The PURPOSE‐T evaluation facilitated the initial validation and clinical usability of the instrument and demonstrated that PURPOSE‐T is suitable of use in clinical practice. Further study is needed to evaluate the impact of using the instrument on care processes and outcomes.

The introduction and evaluation of a pressure ulcer risk assessment tool for photopheresis outpatients

Chronic graft-versus-host disease (cGVHD) patients are at high risk of compromised skin integrity, and of developing pressure ulcers, which may bleed and/or become infected. The Rotherham Outpatient Screening Tool (ROST) was adapted from the Waterlow score and the Malnutrition Universial Screening Tool (MUST) to suit patients attending an outpatient unit for photopheresis. A review of the screening tool highlighted patients at a higher risk of developing pressure damage during treatment and therefore the unit was able to reduce this risk by the provision of a pressure-relieving cushion (Repose).

SIRA+P: Development and Testing

OBJECTIVES

To describe the development of a new skin risk assessment scale called Skin Injury Risk Assessment and Prevention (SIRA+P) and to establish initial reliability and validity of the scale among patients ranging in age from birth, including pre-term, to adulthood, regardless of age or acuity of illness.

STUDY DESIGN

The single-site study was a retrospective chart review to evaluate the measurement properties of SIRA+P. Charts of 385 patients of all ages and in all units (including the neonatal and pediatric intensive care units) of a free-standing children's hospital were included. Concurrent validity was assessed with scales having previously established reliability and validity. For subjects <30days of age, the comparison scale was the Neonatal Skin Risk Assessment Scale (NSRAS); for subjects 31days through 17years, the Braden Q Scale (Braden Q) was used; and for subjects 18years and older, the Braden Scale (Braden) was used. Interrater reliability was examined using Intraclass Correlation Coefficients (ICC). Concurrent validity procedures compared SIRA+P with NSRAS, Braden Q, and Braden using Pearson Correlation Coefficients.

RESULTS

Interrater reliability for SIRA+P was very high (0.878). SIRA+P strongly correlated with the NSRAS (0.725), the Braden Q (-0.634), and the Braden (-0.778).

CONCLUSION

SIRA+P is designed to be used within the EHR and includes nursing decision support to guide pressure injury prevention interventions for specific skin integrity risks. SIRA+P has good interrater reliability, is valid across all age groups and accounts for device-related pressure.

Evaluation of the pressure ulcers risk scales with critically ill patients: a prospective cohort study

AIMS:

to evaluate the accuracy of the Braden and Waterlow risk assessment scales in critically ill inpatients.

METHOD:

this prospective cohort study, with 55 patients in intensive care units, was performed through evaluation of sociodemographic and clinical variables, through the application of the scales (Braden and Waterlow) upon admission and every 48 hours; and through the evaluation and classification of the ulcers into categories.

RESULTS:

the pressure ulcer incidence was 30.9%, with the Braden and Waterlow scales presenting high sensitivity (41% and 71%) and low specificity (21% and 47%) respectively in the three evaluations. The cut off scores found in the first, second and third evaluations were 12, 12 and 11 in the Braden scale, and 16, 15 and 14 in the Waterlow scale.

CONCLUSION:

the Braden scale was shown to be a good screening instrument, and the Waterlow scale proved to have better predictive power.

Supplementing the Braden scale for pressure ulcer risk among medical inpatients: the contribution of self-reported symptoms and standard laboratory tests

AIMS AND OBJECTIVES

To evaluate medical inpatients' symptom experience and selected laboratory blood results as indicators of their pressure ulcer risk as measured by the Braden scale.

BACKGROUND

Pressure ulcers reduce quality of life and increase treatment costs. The prevalence of pressure ulcers is 6-23% in hospital populations, but literature suggests that most pressure ulcers are avoidable.

DESIGN

Prospective, cross-sectional survey.

METHODS

Three hundred and twenty-eight patients admitted to medical wards in an acute hospital in Oslo, Norway consented to participate. Data were collected on 10 days between 2012-2014 by registered nurses and nursing students. Pressure ulcer risk was assessed using the Braden scale, and scores <19 indicated pressure ulcer risk. Skin examinations were categorised as normal or stages I-IV using established definitions. Comorbidities were collected by self-report. Self-reported symptom occurrence and distress were measured with 15 items from the Memorial Symptom Assessment Scale, and pain was assessed using two numeric rating scales. Admission laboratory data were collected from medical records.

RESULTS

Prevalence of pressure ulcers was 11·9, and 20·4% of patients were identified as being at risk for developing pressure ulcers. Multivariable analysis showed that pressure ulcer risk was positively associated with age ≥80 years, vomiting, severe pain at rest, urination problems, shortness of breath and low albumin and was negatively associated with nervousness.

CONCLUSION

Our study indicates that using patient-reported symptoms and standard laboratory results as supplemental indicators of pressure ulcer risk may improve identification of vulnerable patients, but replication of these findings in other study samples is needed.

RELEVANCE TO CLINICAL PRACTICE

Nurses play a key role in preventing pressure ulcers during hospitalisation. A better understanding of the underlying mechanisms may improve the quality of care. Knowledge about symptoms associated with pressure ulcer risk may contribute to a faster clinical judgment of patients at risk.

Nursing documentation of pressure ulcers in nursing homes: comparison of record content and patient examinations

Aim

The aim of this study was to describe the accuracy and quality of nursing documentation of the prevalence, risk factors and prevention of pressure ulcers, and compare retrospective audits of nursing documentation with patient examinations conducted in nursing homes.

Design

This study used a cross‐sectional descriptive design.

Method

A retrospective audit of 155 patients' records and patient examinations using the European Pressure Ulcer Advisory Panel form and the Braden scale, conducted in January and February 2013.

Results

The prevalence of pressure ulcers was 38 (26%) in the audit of the patient records and 33 (22%) in patient examinations. A total of 17 (45%) of the documented pressure ulcers were not graded. When comparing the patient examinations with the patient record contents, the patient records lacked information about pressure ulcers and preventive interventions.

Developing a pressure ulcer risk factor minimum data set and risk assessment framework

AIM

To agree a draft pressure ulcer risk factor Minimum Data Set to underpin the development of a new evidenced-based Risk Assessment Framework.

BACKGROUND

A recent systematic review identified the need for a pressure ulcer risk factor Minimum Data Set and development and validation of an evidenced-based pressure ulcer Risk Assessment Framework. This was undertaken through the Pressure UlceR Programme Of reSEarch (RP-PG-0407-10056), funded by the National Institute for Health Research and incorporates five phases. This article reports phase two, a consensus study.

DESIGN

Consensus study.

METHOD

A modified nominal group technique based on the Research and Development/University of California at Los Angeles appropriateness method. This incorporated an expert group, review of the evidence and the views of a Patient and Public Involvement service user group. Data were collected December 2010-December 2011.

FINDINGS

The risk factors and assessment items of the Minimum Data Set (including immobility, pressure ulcer and skin status, perfusion, diabetes, skin moisture, sensory perception and nutrition) were agreed. In addition, a draft Risk Assessment Framework incorporating all Minimum Data Set items was developed, comprising a two stage assessment process (screening and detailed full assessment) and decision pathways.

CONCLUSION

The draft Risk Assessment Framework will undergo further design and pre-testing with clinical nurses to assess and improve its usability. It will then be evaluated in clinical practice to assess its validity and reliability. The Minimum Data Set could be used in future for large scale risk factor studies informing refinement of the Risk Assessment Framework.

Recommendations for reporting the results of studies of instrument and scale development and testing

Scales and instruments play an important role in health research and practice. It is important that studies that report on their psychometric properties do so in a way such that readers can understand what was done and what was found. This paper is a guide to writing articles about the development and assessment of these tools. It covers what should be in the abstract and how key words should be chosen. The article then discusses what should be in the main parts of the paper: the introduction, methods, results and discussion. In each of these parts, it suggests the statistical tests that should be used and how to report them. The emphasis throughout the paper is that reliability and validity are not fixed properties of a scale, but depend on an interaction among it, the population being evaluated and the circumstances under which the instrument is administered.

Validation and clinical impact of paediatric pressure ulcer risk assessment scales: A systematic review

BACKGROUND

Pressure ulcer risk assessment using an age-appropriate, valid and reliable tool is recommended for clinical paediatric practice.

OBJECTIVES

(1) What PU risk scales for children currently exist? (2) What is the diagnostic accuracy of their scores? (3) Are the scores reliable and what is the degree of agreement? (4) What is the clinical impact of risk scale scores in paediatric practice?

DESIGN

Systematic review.

DATA SOURCES

MEDLINE (1950 to December 2010), EMBASE (1989 to December 2010), CINAHL (1982 to December 2010), reference lists.

REVIEW METHODS

Two reviewers independently screened databases, selected and evaluated articles and studies. Diagnostic accuracy, reliability/agreement, and experimental studies investigating the performance and clinical impact of PU risk scale scores in the paediatric population (0-18 years) were included. PU development was used as reference standard for diagnostic accuracy studies. Methodological quality of the validity and reliability studies was assessed based on the QUADAS and QAREL checklists.

RESULTS

The search yielded 1141 hints. Finally, 15 publications describing or applying 12 paediatric pressure ulcer risk scales were included. Three of these scales (Neonatal Skin Risk Assessment Scale for Predicting Skin Breakdown, Braden Q Scale, Burn Pressure Skin Risk Assessment Scale) were investigated in prospective validation studies. Empirical evidence about interrater reliability and agreement is available for four instruments (Neonatal Skin Risk Assessment Scale for Predicting Skin Breakdown, Starkid Skin Scale, Glamorgan Scale, Burn Pressure Ulcer Risk Assessment Scale). No studies were identified investigating the clinical impact.

CONCLUSIONS

Sound empirical evidence about the performance of paediatric pressure ulcer risk assessment scales is lacking. Based on the few results of this review no instrument can be regarded as superior to the others. Whether the application of pressure ulcer risk assessment scales reduces the pressure ulcer incidence in paediatric practice is unknown. Maybe clinical judgement is more efficient in evaluating pressure ulcer risk than the application of risk scale scores.