Nancy A. Stotts

A Review of the Literature on Gender and Age Differences in the Prevalence and Characteristics of Constipation in North America

Constipation is a common problem and affects between 2% and 28% of the general population. It is thought to affect more women than men. The severity of constipation is variable and it can be an acute or chronic condition. Often, it requires frequent interventions that may produce mixed or even unsatisfactory results. Knowledge of potentially gender- and age-related differences in constipation would be useful to clinicians to help them identify high-risk patients. In addition, researchers might use this information to design both descriptive and intervention studies. This article reviews the evidence from the studies on gender and age differences in prevalence of constipation, gender differences in the prevalence and characteristics of constipation, and age differences in the prevalence and characteristics of constipation. The available literature suggests that the prevalence of constipation is consistently higher in women than in men. However, evidence of gender differences in the characteristics of constipation is inconsistent. Prevalence rates appear to increase gradually after the age of 50 years, with the largest increase after the age of 70 years. The literature is both sparse and inconsistent in its description of age differences in the characteristics of constipation. This lack of research is a significant issue given the magnitude of this problem in the older adult population. Research is needed on gender and age differences in the symptoms of constipation, and how covariates impact the prevalence and severity of constipation in the elderly.

Frequency, manifestations, and correlates of impaired healing of saphenous vein harvest incisions

OBJECTIVE To describe the frequency, manifestations, and correlates of impaired healing of saphenous vein (SV) harvest incisions in hospitalized patients who had undergone coronary artery bypass grafting (CABG). DESIGN Prospective, descriptive, correlational. SETTING West Coast university-affiliated medical center. PATIENTS Thirty-two English-speaking adults who had undergone CABG. OUTCOME MEASURES Impaired wound healing of SV-harvest incisions. RESULTS The overall incidence of impaired healing was 43.8%. The most frequent manifestations of impaired wound healing at discharge were prolonged erythema (8/32), prolonged drainage (8/32), and both prolonged erythema and drainage (2/32). Correlates of impaired healing of SV-harvest incisions were body mass index (product-moment correlation = 0.39, p = 0.026) and preoperative use of diuretics (point biserial correlation = 0.42, p = 0.016). CONCLUSIONS Impaired healing of SV-harvest incisions in this sample occurred more frequently than previously indicated in the literature. Although severe wound infections were infrequent, a high degree of impaired healing occurred (43.8% of patients who had undergone CABG). Future studies need to explore the long-term effects of impaired healing and test interventions to mitigate impaired healing in this population.

Predictors of physical activity in patients with chronic heart failure secondary to either ischemic or idiopathic dilated cardiomyopathy

To identify predictors of physical activity levels in patients with chronic heart failure, 43 patients, aged 33 to 91 years, who had well-compensated heart failure were asked to perform a symptom-limited exercise treadmill test and to complete activity logs for 2 consecutive days while wearing an ambulatory heart rate activity monitor. Activity logs included information on the type of activity, duration, rating of perceived exertion, symptoms experienced, and the intensity of symptoms. Subjects also completed the Duke Activity Status Index, a brief self-administered questionnaire that assesses physical functioning, and a self-efficacy for general activity questionnaire. Simultaneous multiple regression analysis was used to predict physical activity levels from a model that included: personal variables of physical fitness (peak oxygen consumption); knowledge, attitudes, and beliefs including self-efficacy for general activity, and rating of perceived exertion during daily activity; and environmental factors such as social support (marital status). The overall model explained 38% of the variance (p < 0.001). Self-efficacy (p = 0.015) was the strongest predictor of physical activity in this group. From this initial descriptive study, we conclude that self-efficacy is a better predictor of performance of physical activity than measures of physical fitness or rating of perceived exertion during activity. Additional studies are needed to examine other behavioral and physiologic mediators as well as behavioral strategies that may be used to increase participation in physical activity programs. Particularly promising are strategies to enhance self-efficacy for exercise.

Tracking quality over time: what do pressure ulcer data show?

OBJECTIVE To compare the prevalence of pressure ulcers and prevention before and after a quality improvement program; determine whether patient characteristics differed for those who did and did not develop pressure ulcers; identify pressure ulcer prevention implemented at admission and whether prevention and risk factors varied by pressure ulcer severity. DESIGN Descriptive comparative study based on two cross-sectional pressure ulcer surveys conducted in 2002 and 2006, complemented with a retrospective audit of the electronic health record and administrative system for patients identified with pressure ulcers. SETTING 1100-bed Swedish university hospital. PARTICIPANTS 612 hospitalized patients in 2002 and 632 in 2006. MAIN OUTCOME MEASURES Prevalence of pressure ulcers and prevention (pressure-reducing mattresses; planned repositioning; chair, heel and 30 degrees lateral positioning cushions). RESULTS Pressure ulcer prevalence was 23.9% in 2002 and 22.9% in 2006. When non-blanchable erythema was excluded, the prevalence was 8.0 and 12.0%, respectively. The use of pressure-reducing mattresses increased while planned repositioning decreased. Those who developed ulcers were older, at-risk for ulcers, incontinent and had longer length of stay. Little prevention was documented at admission. Some prevention strategies and risk factors were related to severity of ulcers. CONCLUSIONS Pressure ulcer prevalence did not decrease, despite a comprehensive quality improvement program. Special attention is needed to provide prevention to older patients with acute admission. Skin and risk assessment, as well as prevention, should start early in the hospitalization. Identifying those persons with community-acquired versus hospital-acquired ulcers will strengthen pressure ulcers as an accurate marker of quality of care for hospitalized patients. If possible, data should be reported by ward level for comparison over time.

Why patients in critical care do not receive adequate enteral nutrition? A review of the literature

Enteral nutrition is frequently used to provide nutrients for critically ill patients. However, only about half of critically ill enterally fed patients receive their energy requirements. Underfeeding is associated with detrimental clinical outcomes including infection, pressure ulcers, impaired wound healing, prolonged hospital stays, and increased morbidity and mortality. This literature review was conducted to identify major barriers to adequate enteral nutrition intake in critically ill adults and to identify gaps in the research literature. Studies (n = 30) reviewed addressed adult patients in critical care, published since 1999, and written in English. Findings showed that factors that explain inadequate enteral nutritional intake include delayed initiation of enteral nutrition and slow advancement of infusion rate, underprescription, incomplete delivery of prescribed nutrition, and frequent interruption of enteral nutrition. Frequent interruption was caused by diagnostic tests, surgical procedures, gastrointestinal intolerance, feeding tube problems, and routine nursing procedures. There are no standardized protocols that address these barriers to receiving adequate enteral intake. Such protocols must be developed, implemented, and tested to address undernutrition and mitigate the negative consequences of inadequate enteral intake.

Mechanisms for radiation-induced oral mucositis and the consequences.

Radiation therapy remains the primary method of treatment for patients with head and neck cancer. The tissue destruction and functional alterations in the oral cavity lead to the development of oral mucositis. The purpose of this review is to describe the mechanisms, risk factors, prevalence, and magnitude of radiation therapy-related oral mucositis and its morbidities in patients with head and neck cancer. The review concludes with a discussion of the implications for clinical practice. This review provides cancer nurses with the information necessary to identify patients with head and neck cancer who are at high risk for oral mucositis and the significant comorbidities associated with this complication of radiation therapy.

A Review of the Literature on the Multiple Dimensions of Chronic Pain in Adults with Sickle Cell Disease

Sickle cell disease (SCD) is a major health care and societal problem that affects millions of people worldwide. In Nigeria, 45,000 to 90,000 babies are born each year with SCD. In the United States, SCD is the most common genetic disorder, affecting more than 80,000 people, the majority of whom are African American. Sickle cell pain is the hallmark feature of SCD. Most of the research on pain from SCD has focused on children with acute pain associated with sickle cell crisis. Consequently, very little is known about the occurrence and characteristics of chronic pain, especially in adults with SCD. Individuals with SCD who experience chronic pain are often underserved, and their pain is undertreated. This undertreatment may result in millions of dollars per year spent on emergency room visits, hospitalizations, and lost work productivity. The primary purpose of this literature review was to summarize the findings from studies that evaluated the characteristics of chronic pain in adults with SCD. Each of the studies included in this review was evaluated to determine if it provided data on the following multidimensional characteristics of chronic pain: occurrence, number of pain episodes, duration, pattern, quality, location, intensity, aggravating factors, relieving factors, and impact of pain on function. A secondary purpose was to identify gaps in knowledge and directions for future research on the multiple dimensions of chronic pain in adults with SCD.

A Research Review of the Current Treatments for Radiation-Induced Oral Mucositis in Patients With Head and Neck Cancer

PURPOSE/OBJECTIVES To review the research studies on the current treatments for radiation therapy-(RT-) induced mucositis in patients with head and neck cancer. DATA SOURCES MEDLINE search of the literature from 1966-2001. DATA SYNTHESIS Four types of agents (i.e., antimicrobial, coating, anti-inflammatory, and cytokine-like agents) have been evaluated for the management of RT-induced oral mucositis in patients with head and neck cancer. Most of the published studies had relatively small sample sizes and used inconsistent measures to evaluate the extent and severity of oral mucositis. Therefore, definitive conclusions regarding the effectiveness of any of the agents tested in the prevention and treatment of RT-induced oral mucositis cannot be drawn. CONCLUSIONS Oral mucositis remains the most common complication among patients with head and neck cancer. Although a number of strategies and products are being investigated and new directions are promising, the therapies tested to date have not produced consistent results. IMPLICATIONS FOR NURSING The most effective measure to treat RT-induced mucositis in patients with head and neck cancer is frequent oral rinsing with a bland mouthwash, such as saline or a sodium bicarbonate rinse, to reduce the amount of oral microbial flora. Dental care, consistent oral assessments, and the initiation of a standardized oral hygiene protocol before the initiation of cancer treatment are the most effective approaches for oral mucositis.

Cultural factors associated with antihypertensive medication adherence in Chinese immigrants.

Background: Little is known about hypertension control and cultural factors related to medication adherence in Chinese immigrants. Objective: The purpose of this study was to characterize Chinese immigrants with hypertension and to examine what cultural factors are associated with medication adherence. Methods: A cross-sectional design was used. Data were gathered from a convenience sample of 200 subjects recruited in an Asian outpatient clinic in the San Francisco Bay Area using self-report questionnaires and blood pressure measurements. Participants were Chinese immigrants 18 years old and older, taking antihypertensive medications, and able to speak Mandarin. Results: The mean age was 71 (±10) years. Half were men (50%). Most were married (70%), and reported an annual family income of <

Daily physical activity levels in congestive heart failure

20,000 (71%) and an average length of stay in the United States of 13 (±7) years. Medication adherence was reported by 75%, although only 51% had controlled hypertension. Four of 8 cultural factors were statistically significant predictors for medication nonadherence: lower perceived susceptibility [OR = 3.77 (95% CI 1.19, 12.01)]; higher perceived benefit of Chinese herbs [OR = 2.21 (95% CI 1.02, 4.81)]; lower perceived benefit of Western medications for hypertension [OR = 2.78 (95% CI 1.13, 6.84)]; and longer length of stay in the United States [OR = 2.48 (95% CI 1.12, 5.50)]. Conclusions: Four cultural factors were identified as significant predictors of medication nonadherence in this sample. These findings can guide culturally appropriate nursing interventions for hypertension management in Chinese immigrants.