Community-living elder's views on normal and low weight.

OBJECTIVES: To investigate community-living older adult's understanding of normal and low weight. DESIGN: Cross-sectional exploratory. SETTING: Three counties in the Western United States. PARTICIPANTS: Community-living older adults (n=130), aged 65 and older, with a body mass index (BMI) < 24 kg/m2. MEASUREMENT: Interviews, using semi-structured questions, were analyzed using content analysis. RESULTS: Only 22% (n=28) of the participants reported knowing the normal weight range for their age, and even fewer (2%, n=3) knew what a low weight was for their age. Most (n=125) reported receiving no information from their health care provider (HCP) on normal and low weight for their age. CONCLUSION: The majority of the participants were unaware that they were at-risk for poor nutritional status and low weight; they reported receiving little information from their HCP on preventing weight loss. Since most community-living older adults do not know what normal or low weight is for their age, they would benefit from receiving this information from their HCP. RATIONALE: Knowledge of older adults' views on normal and low weight may lead to early identification of weight problems and improve an older adult's nutritional status.

Review article: self-report measures to evaluate constipation.

BACKGROUND: Constipation is a subjective phenomenon, and as such must be evaluated using patient self-report. Valid and reliable measures of constipation are essential to standardize the diagnosis, assess the severity and evaluate the effectiveness of treatments. AIM: To compare and contrast published self-report measures of constipation in terms of development, content, general characteristics, psychometric properties and clinical utility. METHODS: MEDLINE (1966-2007), CINAHL (1980-2007), Cochrane (1993-2007) and Web of Science (1995-2007) were searched to identify self-report measures of constipation. Measures of constipation were selected if they: (i) were self-report measures that measured only constipation; (ii) had undergone psychometric testing; (iii) were used in adults and (iv) were written in English. RESULTS: Seven self-report measures of constipation were identified. The content areas evaluated by these measures varied. Only two measures had adequate validity and reliability, sensitivity to change, or were tested in more than one sample. CONCLUSIONS: Findings from this review suggest that the Chinese Constipation Questionnaire and the Patient Assessment of Constipation-Symptom Questionnaire demonstrate adequate psychometric properties for a constipation measure. Additional research is warranted to refine or develop a more comprehensive self-report measure to evaluate constipation in adults.

An instrument to measure healing in pressure ulcers: development and validation of the pressure ulcer scale for healing (PUSH).

BACKGROUND: Currently, there is no instrument that provides an accurate and simple method of monitoring pressure ulcer healing in clinical practice. This article reports the two studies that were conducted to assess the validity of the Pressure Ulcer Scale for Healing (PUSH) as a tool to monitor healing of stage II-IV pressure ulcers. METHODS: Subjects in both studies (N = 103 and N = 269) were elderly (mean Study 1, 75 years, mean Study 2, 80 years), and the majority were women (Study 1, 51%, Study 2, 70%). Study data were extracted from patients' permanent records. RESULTS: Principal components analysis confirmed that the PUSH tool accounted for 58% to 74% of the wound healing variance over a 10-week period in Study 1 and 40% to 57% of the wound healing variance over a 12-week period in Study 2. In addition, multiple regression analysis, used to measure the sensitivity of the model to total healing, showed PUSH accounted for 39% of the variance in 6 weeks and 31% of the variance over 12 weeks (p <.001; Studies 1 and 2, respectively). CONCLUSIONS: Data from these two studies confirmed that the PUSH tool, with the components of length times width, exudate amount, and tissue type, is a valid and sensitive measure of pressure ulcer healing. It is a practical approach that provides clinically valid data regarding pressure ulcer healing. Further testing is needed to confirm these findings.

Gastric versus duodenal feeding in patients with neurological disease: a pilot study.

Both gastric and duodenal feeding tubes are used to provide enteral nutrition. Most studies comparing the two methods have focused primarily on rates of complications, rather than on nutritional outcomes, and show no difference in complications between the two methods. It is not clear which feeding route provides the best nutritional outcomes. The primary purpose of this randomized clinical pilot study was to compare the percentage of recommended calories and protein received by patients with neurological disease being fed enterally via gastric or duodenal feeding tubes. Secondary aims were to compare the following between groups: physiological effects of feeding, reasons for delay in feeding, volume of feeding residual, number of feeding tubes replaced, cost of feeding, and number and types of complications. A convenience sample of 25 neuro intensive care unit patients was randomly assigned to gastric or duodenal feeding. Enteral feeding was ordered by using a standardized prescription formula and provided by the nursing staff. Serum albumin and prealbumin levels were measured at baseline, day 3, and day 10. Nitrogen balance was measured on day 10. Enteral feeding data were collected daily. No significant differences were found between gastric and duodenal groups in nutritional outcomes, including percentage of recommended calories and protein received, physiological effects of feeding, reasons for delay in feeding, feeding residual, number of feeding tubes replaced, cost of feeding, and number and types of complications. Neither group achieved mean recommended caloric or protein intake during the 10 days of the study. Further research is needed to address how recommended nutrients can be provided enterally in a more timely and complete manner in critically ill NICU patients.

Tissue oxygenation, perfusion, and position in patients with venous leg ulcers.

OBJECTIVES: The purpose of this study was to compare the partial pressure of transcutaneous tissue oxygen (TcPO2) in persons with venous ulcers in four positions with and without inspired oxygen. METHODS: TcPO2 was evaluated two times, 4 weeks apart at a chest reference and three lower extremity sites. RESULTS: Lower extremity resting TcPO2 levels were lower in patients with venous ulcers than in healthy adults. Minimal changes in TcPO2 occurred with position changes when subjects breathed room air. When arterial oxygen saturation was increased using inspired oxygen, TcPO2, used as an indicator of perfusion, was lower during leg elevation, sitting, and standing compared to lying supine (p < 0.05). CONCLUSIONS: Control of peripheral circulation and tissue oxygenation may be impaired in persons with venous ulcers. Leg elevation, sitting, and standing decreased wound perfusion and may not be beneficial to individuals with venous insufficiency and ulceration. Research is needed to explore relationships among tissue oxygenation, blood perfusion, compression, positioning, and venous ulcer healing.

Patients with existing pressure ulcers admitted to acute care.

PURPOSE: This study describes the characteristics of patients with pressure ulcers present on admission to the hospital and predictors of pressure ulcer presence and severity. DESIGN: Prospective cohort study. SETTING AND SUBJECTS: Adults (n = 267) admitted to a Pacific Basin military hospital who were expected to stay more than 24 hours. INSTRUMENTS: Braden scale, portable vital sign machine, and pulse oximeter. METHODS: Pressure ulcer risk was evaluated and skin inspection was performed. Demographic, physiologic, and laboratory data were obtained. Medical history and patient acuity were recorded. RESULTS: Thirty-four of 267 subjects (12.8%) had a pressure ulcer. Most were male and white. Their mean age was 65.7 years; mean albumin level, 2.9 g/dL: mean hematocrit level, 31.9 vol%; mean oxygen saturation, 95.3 mm Hg; and mean hemoglobin level, 10.7 g/dL. The mean Braden scale score for subjects without ulcers on admission was 19.7, and it was 15.9 for those with ulcers (P < .05). Analysis of variance showed that subjects with pressure ulcers had a significantly lower albumin level, total lymphocyte count, hematocrit level, and hemoglobin level. These subjects were significantly older and had a longer hospital length of stay. Regression showed that albumin level, oxygen saturation, and length of stay (P < .01) accounted for 11.3% of the variance of pressure ulcer presence and that albumin level and length of stay (P < .001) accounted for 11.2% of the variance in ulcer severity. CONCLUSIONS: Poorer nutritional status and decreased oxygen perfusion were predictors of pressure ulcers on admission. Nutrition and length of stay were predictors of ulcer severity. Further research is warranted.

Evidence-based practice: what is it and how is it used in wound care?

Evidence-based practice is an approach to providing clinical care based on research and scientific knowledge. Nurses who work with patients with wounds need to understand and apply evidence-based principles. This article provides guidelines for critical analysis of the literature using the principles of evidence-based practice.

Identifying and evaluating wound infection.

Wound infection is a serious problem in the home care patient. Early detection of infection, prompt treatment, and continuous surveillance are pivotal to elimination of the infection and prevention of complications. This article addresses identification of wound infection in postsurgical and chronic wounds based on data obtained from the patient's history, physical examination, and diagnostic tests. Appreciating the overt and subtle signs and symptoms of wound infection and acting on them is critical to timely diagnosis and treatment.

Assessing the patient with a wound.

Assessment of the home care patient with a wound is critical to the planning and evaluation of care. This article presents the components of a comprehensive assessment that can be used as a guide to assessment of a patient with a wound. Topics include collection of a baseline history and physical examination, wound assessment, treatment plan and documentation, wound care orders, and follow-up visits.

Risk of pressure ulcer development in surgical patients: a review of the literature.

OBJECTIVE: The purpose of this paper is to review the scientific knowledge about risk factors for pressure ulcer development in the surgical population. DATA SOURCE: A literature review was conducted from 1960 to present using MEDLINE and the key words pressure ulcer, decubitus ulcer, surgery, surgical patient, research, clinical research, and human. All sources were English. STUDY SELECTION: Included were articles that specifically addressed the risk of pressure ulcers in the surgical population and had ulcer formation as an outcome measure. DATA EXTRACTION: All data were reviewed and extracted by the author. DATA SYNTHESIS: The development of pressure ulcers has been explored in only a small proportion of surgical patients. Few groups of surgical patients have been addressed. Major surgical populations potentially at risk because of their immobility, debility, and therapy have not been studied. A portion of the literature is quite old and one issue is whether the older studies are relevant, considering the rate of change in treatment. Pressure relief, seen as the single most important factor in pressure ulcer prevention, is underrepresented in the analysis of factors leading to pressure ulcer development. CONCLUSION: There is limited information about pressure ulcer risk in the preoperative, intraoperative, and postoperative periods. Because the surgical period is defined temporally, and more so than pressure ulcers in the chronically ill, this paradigm must be examined using a time-based evaluation. The Agency for Health Care Policy and Research guideline for pressure ulcer prevention needs to be tested in surgical patients.

Effect of electrical stimulation on foot skin perfusion in persons with or at risk for diabetic foot ulcers.

The failure of foot wounds to heal results in 54,000 people with diabetes having to undergo extremity amputations annually. Therefore, treatment is needed to speed healing in people with diabetes in order to reduce the need for amputation. This study tested the effect of high-voltage pulsed current on foot blood flow in human beings who are at risk for diabetic foot ulcers. Neuropathy, vascular disease, Wagner Class, glucose, gender, ethnicity, and age were measured. A sample of 132 subjects was tested using a repeated-measures design. A baseline transcutaneous oxygen level was obtained; stimulation was applied, and transcutaneous oxygen measurements were recorded at 30- and 60- minute time intervals. The grouped foot transcutaneous oxygen levels decreased (F = 5.66, p =. 0039) following electrical stimulation. Analysis of variance (Scheffe, p <.05) showed that initial transcutaneous oxygen was significantly higher than subsequent readings. However, oxygen response was distributed bimodally: 35 (27%) subjects showed increased transcutaneous oxygen (mean 14.8 mm Hg), and 97 (73%) experienced a decreased transcutaneous oxygen reading (mean 12.2 mm Hg). Logistic regression analysis did not explain these differences. Although this treatment appears to increase blood flow in a subset of patients, further study is needed to identify probable mechanisms for this response.

Underutilization of pressure ulcer risk assessment in hip fracture patients.

Patients with hip fractures are at high risk for pressure ulcer development, yet few recent studies have addressed risk assessment in this population. In this retrospective medical record survey, records of a random sample of California Medicare beneficiaries with hip fractures admitted to acute care hospitals in 1995 were selected for abstraction. Medical record abstraction (n = 545) revealed that risk assessment was performed on only 44.2% (241/545) of patients. Among these, 64.3% were identified as at risk for pressure ulcer development. Accuracy of the risk assessment was evaluated independently and compared with those performed by the nursing staff; there was agreement in only 40% of cases. Ulcers developed in 19.1% of the sample, and pressure ulcer development was not related to risk status at hospital admission. Patients with longer hospital stays developed more ulcers than those discharged earlier. This study shows that risk assessment is underutilized, inaccurate, and unrelated to pressure ulcer development in hip fracture patients.

Effect of dressings on saphenous vein harvest incision pain, distress and cosmetic result.

Little research has examined the healing and pain associated with saphenous vein (SV) harvest incisions, and no literature has addressed the associated distress and cosmetic result. The purpose of this study was to determine whether dry sterile gauze dressings, transparent film dressings or no dressings were more effective in hospitalized patients undergoing coronary artery bypass graft (CABG), in terms of minimizing leg incisional pain, minimizing the distress of a leg scar and improving the cosmetic appearance of the leg incision scar. Patients were randomized to dressing type on postoperative day (POD) 1, completed a pain and distress visual analogue scale (VAS) on PODs 1, 3 and 5, and a cosmetic result VAS upon discharge. Overall, leg incisional pain decreased over time (p < 0.05). Females reported decreasing pain between PODs 1 and 3, while males reported increasing pain between PODs 1 and 3 (p < 0.05). The film-dressing group reported decreasing pain from PODs 1 to 3, while the no-dressing and gauze-dressing groups reported increasing pain from PODs 1 to 3 (p < 0.05). Pain on POD 5 was positively correlated with an unfavorable cosmetic result (r = 0.42, p < 0.05), and distress on POD 5 was positively correlated with an unfavorable cosmetic result (r = 0.44, p < 0.05). The results of this study are encouraging and support the continued testing of dressings to minimize pain and distress, as well as enhancing cosmetic result.

Nutrition, tissue oxygenation, and healing of venous leg ulcers.

The purpose of the prospective study described in this article was to explore nutrition, tissue oxygenation, and healing in venous ulcer patients. Nutritional risk, anthropometric measures, biochemical indices, two 3-day dietary records, and transcutaneous tissue oxygen levels were obtained. Wound surface area was evaluated 2 times, 4 weeks apart. A convenience sample of 25 English-speaking persons with 1 or more venous ulcers participated (mean age 59.8 years, 60% men, 48% white). Moderate or high nutritional risk existed in 84% of the persons in the sample. Based on body mass index, more than 50% of the persons in the sample were obese. Nonetheless, 17 of 25 persons in the sample had 1 or more abnormal biochemical nutritional indices. In addition, caloric intake (17 of 20), protein intake (15 of 20), and zinc intake (17 of 20) were inadequate to meet the needs for healing. No statistically significant relationships were found between biochemical nutritional indices, tissue oxygenation, and healing. The women in the sample were more likely to heal than were the men (P < 0.05). This study begins to document the problems of overnutrition and undernutrition in the venous ulcer population. Future studies need to explore the effects of obesity and inadequate intake on the healing of venous ulcers. Additional examination of the differences between men and women also is warranted to identify predictors of venous ulcer healing.

Pressure ulcer scale for healing: derivation and validation of the PUSH tool. The PUSH Task Force.

Measuring progress toward healing is fundamental to the management of pressure ulcers. A method to assess progress of an individual ulcer over time is lacking. Given the limitations of currently available instruments and the need for a precise and practical method of monitoring healing in clinical practice, the National Pressure Ulcer Advisory Panel initiated the development of a new tool for measuring pressure ulcer healing. The key elements in developing an instrument include simplicity of use in clinical settings, validity for measuring whether ulcers are improving or worsening, and sensitivity to changes in the ulcer between observations. A new tool incorporating surface area, exudate amount, and surface appearance is proposed. Content validity, correlation validity, prospective validity, and sensitivity to change can be met by the proposed Pressure Ulcer Scale for Healing instrument.

Revision of the PUSH Tool using an expanded database. Pressure Ulcer Scale for Healing.

The National Pressure Ulcer Advisory Panel's Pressure Ulcer Scale for Healing has been introduced and is undergoing retrospective refinement through testing on a larger data set. Sites for the National Demonstration Project, a prospective study, are being sought.

Pressure ulcers. Managing bacterial colonization and infection.

High levels of contamination are associated with delayed healing of pressure ulcers, and problems occur when surface contaminants invade the tissues and produce infection. This article addresses differentiating contamination from infection, identifying infection when it is present, and treating the patient with a contaminated or infected pressure ulcer. Systemic support for healing is discussed with a focus on oxygenation and nutrition. A comprehensive plan for the concomitant treatment of all factors contributing to pressure ulcer infection is recommended.