Tissue viability. Pressure sore prevention: scoring pressure sore risk in the community

A point prevalence survey of wounds in north-east England

OBJECTIVE

To review current wound-care practice and the standard of wound care in Hull and East Yorkshire; obtain information on prevalence, treatment and outcomes; provide a basis for estimating the extent of the problem, treatment modalities used, service provision and future needs; highlight areas of care in need of improvement; highlight areas with excellent wound practices and gain information for future research projects within the population of the region.

METHOD

Point prevalence interface audit of community and acute trusts.

RESULTS

The cumulative wound prevalence for the region was 12%. Community nurses were involved in caring for 70.1% of patients with wounds, with 52.7% of wounds being treated in the patient's home. The largest proportion of wounds were surgical wounds (n=699, 41.5%), followed by leg and foot ulcers (n=629, 37.3%) and pressure ulcers (n=294, 17.4%). Diabetes and cancer were related to 15.1% and 9.7% of the wounds respectively. 41.9% of the wounds were on the lower leg. The primary and secondary dressings used the most were low/non-adherent dressings at 25.9% and 27.3% respectively.Almost half of the patients with a venous leg ulcer (46%) did not receive multilayer compression and 7% of patients with an arterial ulcer did; 23.6% of the leg and foot wounds were not assessed with a Doppler.

CONCLUSION

Wounds represent a significant cause of morbidity in the general population.A systematic focus is necessary on effective and timely diagnosis, on ensuring treatment is appropriate to the cause and condition of the wound and on active measures to prevent complications.A number of initiatives have commenced in order to provide a effective and efficient wound care.

Assessing the needs of older burglary victims: a link nurse scheme

Distraction burglary is a type of burglary where the method of entry is by a trick rather than the typical forced entry. Research suggests this type of event can contribute to a decline in health amongst victims aged over 65 years. This article describes a scheme that employed a district nurse to work in partnership with the police to address the health and social care needs of older victims of distraction burglary living in the London Borough of Islington.

Complications of adapting pressure ulcer risk assessment scales

This article challenges recommendations to adapt a pressure ulcer risk assessment scale (RAS) according to the clinical context. The transformation of the Cubbin and Jackson (1991) RAS is used to illustrate problems in scale development. When new factors are added to an existing scale, this can lead to unnecessary complexity. When words are changed by a person developing a scale this illustrates their differing beliefs and value judgements. Arbitrary scores for factors are misleading and in some cases mystifying, yet appear to be objective. This article suggests that the relationship between sub-scales and the whole scale have not been adequately accounted for -- they can't simply be added up arithmetically. The paradox of risk is debated, namely, that the more something is thought to be a risk, the less risky it becomes. RASs should be replaced by risk reduction scales linking a risk factor with its outcome following intervention.

Examining the validity of pressure ulcer risk assessment scales: a replication study

Risk assessment scales (RASs) intended to identify patients most at risk of developing pressure ulcers have been widely used for many years. Numerous studies have evaluated their predictive validity but potential bias has been inherent in the design of all. To overcome these problems a simulation study was conducted in which clinical nurses were asked to identify the degree of risk experienced by four patients employing the three RASs discussed most frequently in the literature (Norton, Braden and Waterlow Scores). These findings were compared with nurses' clinical judgment rated on a visual analogue scale. The simulations consisted of high-resolution photographs accompanied by case studies of the patients. The nurses' scores were compared to estimates of risk generated by an expert panel. Nurses' clinical judgment agreed much more closely with expert opinion than any of the RASs. A replication study was undertaken to confirm these findings. One hundred and fifteen nurses participated in replication. Again the nurses' clinical judgment matched expert opinion much more closely than the results of the RASs. Replication also drew attention to a number of methodological issues which deserve consideration when using simulation to test the effectiveness of clinical tools and the need to establish adequate measures of external validity whenever use of this method is contemplated.

Establishing the validity of pressure ulcer risk assessment scales: a novel approach using illustrated patient scenarios

Preventing pressure ulcers is an important nursing goal and over the years a number of risk assessment scales (RASs) have been developed to expedite clinical judgement. The aim of this study was to examine the validity of the three most commonly used RASs compared to nurses' own clinical judgement. Patient simulations were presented to 236 clinical nurses. Nine hundred and forty one assessments were completed and compared to the ratings from a panel of tissue viability experts. Clinical judgement exactly matched expert opinion (69.1%) more often than assessment with any of the RASs. The Waterlow Score matched exactly in 20% of cases, the Braden Scale in 8.5% of cases and the Norton Score in 4.6% of cases. Thus none of these RASs can be considered valid, assuming that the expert panel genuinely reflected the 'gold standard' in terms of the external criterion. The implications for clinical practice are far-reaching considering the extent to which RASs are currently used to reach important clinical decisions relating to the deployment of expensive pressure-relieving aids and nursing time.

A nurse's aid to clinical selection of pressure-reducing equipment

The selection of appropriate pressure-relieving equipment for individuals in the community is an important process in the prevention of pressure ulcers. The clinical decision is made by community nurses who are accountable for their actions and who therefore have to have clear rationale for the decisions they make. Risk tools are not a completely reliable or valid method of assessing patients. The current national guidelines (National Institute for Clinical Excellence (NICE), 2001) are not specific in relation to the selection or choice of equipment. This article explores how these decisions are made.

Evaluation of an electric bed frame and pressure-reducing mattresses

Pressure ulcers remain a challenge to all healthcare professionals. With the trend towards caring for ill patients in the community there is a need to ensure that equipment used to prevent pressure ulcers in these patients is effective. It is not always appropriate to simply use equipment designed for hospital. This article describes the evaluation of an electric bed frame and three mattresses specifically designed for patients in the community, in either their own homes or nursing home/residential care. The location of this research can reduce the number of participants recruited. In order to compensate for this, three different methods of evaluation were employed - clinical, laboratory and anecdotal - which have produced results relevant to both purchasers and users of the system tested.

Validity of the Walsall Community Pressure Sore Risk Calculator

The Walsall Community Risk Score Calculator has been in use of the past 8 years. Outcomes from a trust-wide prevalence audit identified that this assessment tool may benefit from re-evaluation. This study examined the tool's validity and reliability and has resulted in some changes being made to the original score. To assess validity, a cross-sectional study of 720 patients was undertaken looking at the incidence of pressure damage, despite intervention, over a 12-week period. Using logistic regression analysis new weightings for each category were developed. This also led to the removal of one factor (bodily pain) which did not appear to contribute to increased risk of pressure damage. The updated score shows an improved prediction of pressure sore development compared with the existing method.

Validity of the Walsall Community Pressure Sore Risk Calculator

The Walsall Community Risk Score Calculator has been in use for the past 8 years. Outcomes from a trust-wide prevalence audit identified that this assessment tool may benefit from re-evaluation. This study examined the tool's validity and reliability and has resulted in some changes being made to the original score. To assess validity, a cross-sectional study of 720 patients was undertaken looking at the incidence of pressure damage, despite intervention, over a 12-week period. Using logistic regression analysis new weightings for each category were developed. This also led to the removal of one factor (bodily pain) which did not appear to contribute to increased risk of pressure damage. The updated score shows an improved prediction of pressure sore development compared with the existing method.