A critical review of the inter-relationship between skin vulnerability and urinary incontinence and related nursing intervention

Development and experimental validation of a mathematical model for friction between fabrics and a volar forearm phantom

An analytical mathematical model for friction between a fabric strip and the volar forearm has been developed and validated experimentally. The model generalizes the common assumption of a cylindrical arm to any convex prism, and makes predictions for pressure and tension based on Amontons' law. This includes a relationship between the coefficient of static friction ( μ) and forces on either end of a fabric strip in contact with part of the surface of the arm and perpendicular to its axis. Coefficients of friction were determined from experiments between arm phantoms of circular and elliptical cross-section (made from Plaster of Paris covered in Neoprene) and a nonwoven fabric. As predicted by the model, all values of μ calculated from experimental results agreed within ±8 per cent, and showed very little systematic variation with the deadweight, geometry, or arc of contact used. With an appropriate choice of coordinates the relationship predicted by this model for forces on either end of a fabric strip reduces to the prediction from the common model for circular arms. This helps to explain the surprisingly accurate values of μ obtained by applying the cylindrical model to experimental data on real arms.

Pressure ulcers: e-learning to improve classification by nurses and nursing students

AIMS AND OBJECTIVES

To detect problems when classifying pressure ulcers and to examine whether an e-learning program is able to increase the classification skills of qualified nurses and nursing students.

BACKGROUND

Both the distinction between pressure ulcer grades and the differentiation between moisture lesions is difficult. Misclassification and incorrect identification of the lesions results in inadequate preventive and therapeutic measures. Education and training are important for spreading evidence-based insights about this topic.

DESIGN

Repeated measure design, consisting of one pretest and three posttests.

METHODS

The experimental intervention consisted of a one-hour session during which the participants independently went over an e-learning program. The control intervention consisted of a one-hour lecture. Both interventions had the same learning contents. A convenience sample of 212 qualified nurses and 214 final-year nursing students was randomly assigned to an experimental-and a control group.

RESULTS

In the pretest, the classification skills were low. After the intervention, these skills improved significantly in both groups. The nursing students achieved better results when using the e-learning program. Among the qualified nurses, there was no difference between the learning methods. Although the classification skills decreased in the posttests, they did not drop under the level of the pretest.

CONCLUSION

The actual classification system does not provide the necessary information about the severity of a pressure ulcer. The differential diagnosis between a moisture lesion was complicated. The classification skills of the qualified nurses and nursing students increased by both learning methods. Repetition remains, however, necessary.

RELEVANCE TO CLINICAL PRACTICE

Both instruction methods are adequate to acquire the knowledge about the differences between moisture lesions and pressure ulcers. E-learning allows studying in one's own time and place, and could therefore be very suitable for repetition of the training. How to organise this training could be a subject for further research.

Development and validation of a new method for measuring friction between skin and nonwoven materials

A new method for measuring the coefficient of friction between nonwoven materials and the curved surface of the volar forearm has been developed and validated. The method was used to measure the coefficient of static friction for three different nonwoven materials on the normal (dry) and over-hydrated volar forearms of five female volunteers (ages 18–44). The method proved simple to run and had good repeatability: the coefficient of variation (standard deviation expressed as a percentage of the mean) for triplets of repeat measurements was usually (80 per cent of the time) less than 10 per cent. Measurements involving the geometrically simpler configuration of pulling a weighted fabric sample horizontally across a quasi-planar area of volar forearm skin proved experimentally more difficult and had poorer repeatability. However, correlations between values of coefficient of static friction derived using the two methods were good ( R = 0.81 for normal (dry) skin, and 0.91 for over-hydrated skin). Measurements of the coefficient of static friction for the three nonwovens for normal (dry) and for over-hydrated skin varied in the ranges of about 0.3–0.5 and 0.9–1.3, respectively. In agreement with Amontons' law, coefficients of friction were invariant with normal pressure over the entire experimental range (0.1–8.2 kPa).

The nature and impact of urinary incontinence experienced by patients receiving community nursing services: A cross-sectional cohort study

BACKGROUND

Nurses have played a pivotal role in the delivery of continence services yet little is known about the nature or impact of urinary symptoms experienced by patients in receipt of such care.

AIM

To define the nature and impact of urinary symptoms experienced by patients in receipt of community nursing services.

METHOD

The Leicestershire Urinary Symptoms Questionnaire was administered to 1078 patients with incontinence identified from 176 community nurses' caseloads in 157 general practices in England. Information included type and severity of urinary symptoms, impact on quality of life, help with coping, use of continence products and health service resources.

RESULTS

Nine hundred and ninety nine (92.7%) patients (median age 79.0 years) returned completed questionnaires. Most patients had incontinence between 1 and 5 years duration, women were more likely than men to have had long standing ( > 5 years) symptoms and more than half the sample reported severe leakage. Women were more likely than men to report symptoms of stress incontinence (71.7% and 46.8%, respectively, p < 0.001) and urge incontinence UI (86.3% vs. 74.8%, respectively, p < 0.01). Half of the men and most women also experienced leakage as a result of difficulty getting to, on or off, a toilet/commode. Men were more likely than women to report getting up three or more times a night to pass urine (53.6% vs. 37.0%, respectively, p < 0.05). Most patients reported that their symptoms had a significant impact on many aspects of quality of life, and 45.7% would be very dissatisfied to continue "the way they are now". Professional help appeared principally one of containment.

CONCLUSION

Many people with incontinence receiving community nursing services experience two or more urinary symptoms which, in the majority, have a significant impact on quality of life. Many older patients were not satisfied to "put up" with their urinary symptoms. Current service provision appears to be failing those who are most in need of such care.

Incontinence: assessment, diagnosis, and management in two rehabilitation units for older people

BACKGROUND

Incontinence of both bladder and bowel is a major health care problem and adversely affects the lives of many people living at home or in health service facilities. The prevalence and severity of incontinence is a global concern that has, in recent years, prompted investigation across several countries. Current approaches to continence care indicate an emphasis on safety and reduction of risk, rather than on detailed individualised assessment and management.

AIM

To show approaches to assessment, diagnosis, and management of urinary and faecal incontinence in two rehabilitation settings for older people in Ireland. The study forms part of a larger 2-year case study to identify the determinants of practice "context" that enable or hinder proactive approaches to promoting continence and the treatment of incontinence in rehabilitation settings for older people.

METHOD

The Royal College of Physicians Audit Scheme was used to record the assessment and management of urinary and faecal incontinence. This scheme also includes questions regarding resources available to enable effective continence management. Over 6 months, 220 patients who suffered from incontinence participated in two study sites: a 78-bed rehabilitation unit in Northern Ireland and an 80-bed rehabilitation unit in Southern Ireland.

RESULTS

Findings indicated that 60% of incontinent patients had urinary incontinence, 3% faecal incontinence, and 37% mixed urinary and faecal incontinence; however, a specific continence assessment and specific rationale for treatment decisions or continuation of care were lacking. The focus was on continence containment rather than on proactive management. The examination of resources available for continence promotion and management showed that even though guidelines for continence management were available to staff in one unit, there was a dearth of appropriate education or support for staff in continence care.

IMPLICATIONS FOR PRACTICE

Because incontinence remains an issue for older people and the clinical implications of sustained incontinence are multifaceted, strategies should focus on the development of practice towards evidence-based multidisciplinary approaches to continence promotion and management.

Is the distinction between superficial pressure ulcers and moisture lesions justifiable? A clinical-pathologic study

OBJECTIVE

Pressure ulcers are classified into 4 distinct stages, which allows comparisons between institutions and even countries. Recently, attempts have been made to single out so-called moisture lesions from the early stages of pressure ulcer lesions as a distinct entity.

METHODS

To investigate the justification for this development, 14 histopathologic samples from patients with both incontinence and pressure ulcer lesions were studied in an attempt to delineate differences in the pathophysiology and histopathology.

RESULTS

Two distinct histopathologic pictures emerged: an ischemic pattern and a pattern of irritation. The latter appeared to be associated with lesions that clinically fit the description of moisture lesions, but this association was not absolute.

CONCLUSIONS

There is no justification for singling out moisture lesions from pressure ulcer lesions. The distinction may even be dangerous when proper preventive measures for the development of pressure ulcers are not taken because of the existence of a possible moisture lesion.

Introducing a new incontinence management system for nursing home residents

OBJECTIVES

To describe current practices of incontinence care in nursing homes (NHs) provided by certified nurse assistants (CNAs), and to evaluate the feasibility and acceptability of an integrated incontinence care product, the One Step Incontinence System (OSIS) in the NH setting. While the ultimate purpose of OSIS is to encourage more consistent skin cleansing and thus reduce perineal dermatitis and risk of pressure ulcers, this study reports an initial feasibility test of OSIS.

DESIGN

Controlled trial at two NH sites, with one ward at each site assigned to intervention with OSIS and one ward at each site assigned to a control condition with a box of wipes placed at the bedside (BW).

SETTING

Two NHs (one community and one Veterans Administration) in the Los Angeles area.

PARTICIPANTS

24 incontinent NH residents and 61 CNAs.

INTERVENTION

OSIS integrates an adult brief and two cleansing/protective wipes into a single item by way of a waterproof pouch that is removed at the time of incontinence care. The OSIS briefs were placed on the intervention wards in the same location(s) and adjacent to regular adult briefs.

MEASUREMENTS

Structured observations of incontinence care episodes were performed by trained research staff at baseline on all wards, and at follow-up with either the intervention (OSIS) or control condition (BW) in place. Observations included resident location, thoroughness and duration of incontinence care, and materials used. In addition, CNAs' opinions of their preferred incontinence care materials and their experience using OSIS were obtained by self-administered survey.

RESULTS

Use of OSIS resulted in significantly greater frequency of use of cleansing wipes (97% of episodes) compared to the baseline (77% of episodes) and BW conditions (41% of episodes). In 59% of the observed episodes in the BW condition, the box of wipes was actually missing from the bedside, or completely absent from the patient's room and had to be replaced. The two wipes that were incorporated with OSIS were used for perineal skin cleansing immediately when providing incontinence care. There was a significant reduction in the percentage use of and number of cloth towels used during incontinence care with OSIS (53% of episodes, 0.8 towels) compared to baseline (67%, 1.1 towels) and BW conditions (82%, 1.2 towels; p=.002 and p=.012, respectively). CNAs were significantly less often interrupted by the need to find supplies during OSIS condition (13%) compared to baseline (23%) and BW (36%; p= .005). There were no significant differences between conditions in the thoroughness of observed cleansing. The average observed time for incontinence care from putting on gloves to fastening the clean adult brief (T1) and between uncovering the resident to fastening a clean adult brief (T2) decreased significantly within both groups (OSIS and BW) at follow-up (all p-values <.05), but there were no significant differences in T1 and T2 between groups at follow-up. CNAs were more likely to report that they felt that OSIS facilitated skin cleansing compared to the BW.

CONCLUSION

We successfully implemented a trial of an innovative adult brief that encouraged skin cleansing during incontinence care. The system was easily and effectively incorporated into the nursing home, was used by CNAs whenever available (97% of the time), and was favored by CNAs. Patterns of incontinence care differed at follow-up with OSIS compared to BW, with fewer linens used, fewer wipes used, and less CNA interruption during care, which may result in greater privacy and comfort for residents.

Incontinence Induces Stratum Corneum Vulnerability and Impairs the Skin Barrier Function in the Perianal Region

BACKGROUND

Incontinence leads to a reduced skin barrier function, while also increasing the risk of skin breakdown.

AIM

To investigate the perianal skin barrier function of elderly patients with or without incontinence.

METHODS

We compared the skin barrier function by investigating the skin hydration, the skin pH, the amount of ceramide and by making a dermatological skin inspection of the perianal region in patients with and without incontinence.

RESULTS

Twenty-one incontinent patients (70.0%) showed a glossy skin, which indicates impairment of the skin barrier while none of the patients in the continence group did so. In the incontinence group, those who had a glossy skin showed a significantly greater skin pH and total amount of ceramide than those with a normal skin (p = 0.0099, p = 0.0179, respectively).

CONCLUSIONS

These results demonstrate that a glossy skin may be a useful indicator of a reduced perianal skin barrier function.