Deane L. Wolcott

Treatment Compliance in End-Stage Renal Disease Patients on Dialysis

This paper reviews the current knowledge concerning treatment compliance in patients with end-stage renal disease (ESRD). Adult hemodialysis patient noncompliance with the treatment regimen is very common. Objective and subjective measures of compliance, however, are often weakly correlated. In addition, the patients may be compliant with some aspects of the treatment regimen, but noncompliant with others. Unfortunately, no current model of predicting the degree of hemodialysis patient compliance is very accurate. In spite of this, behavioral approaches to increase regimen compliance do have at least short-term efficacy. There is a paucity of published data on compliance in adult peritoneal dialysis patients and an almost complete absence of systematic studies of compliance in children and adolescent dialysis patients. A multidimensional nosology of compliance behavior in ESRD patients is, therefore, proposed, as well as an approach to the diagnosis of noncompliance in ESRD patients and to possible interventions.

Recombinant Human Erythropoietin Treatment May Improve Quality of Life and Cognitive Function in Chronic Hemodialysis Patients

Medical, psychological, and social adaptation (quality of life) as well as cognitive function were studied in 15 chronic stable hemodialysis patients before the onset of treatment with recombinant human erythropoietin (r-HuEPO), 1 month after stabilization of normal hematocrit levels, and 10 to 15 months after treatment onset. After r-HuEPO treatment, subjects had significantly higher hematocrits, markedly improved energy levels, and marginally improved global health. r-HuEPO treatment was also associated with progressively decreased levels of subject mood disturbance and dialysis-related stresses. Subjects had no increased participation in paid employment and only minimally increased participation in social and leisure activities at posttreatment data points. There was no significant improvement in cognitive function after treatment. r-HuEPO treatment appears to be associated with higher energy levels, significant psychological benefits, and minimal improvements in social adaptation. The effects on cognitive function merit further study.

Quality of Life in Chronic Dialysis Patients: A Critical Comparison of Continuous Ambulatory Peritoneal Dialysis (CAPD) and Hemodialysis

Thirty-three matched pairs of chronic continuous ambulatory peritoneal dialysis (CAPD) and center hemodialysis (CHD) patients from three dialysis programs were studied cross-sectionally to assess their current medical, psychological, and social status. The CAPD and CHD groups were similar on matching and medical status variables. The CAPD subject group had a higher quality of life, lower illness and modality related stress scores, and nonsignificantly lower mood disturbance scores. The groups did not differ in self-esteem or health locus of control. CAPD subjects reported higher frequency of participation in community activities, better relationships with dialysis physicians and patients, and were more likely to be currently vocationally active. Dialysis modality likely exerts an independent effect on the quality of life of chronic dialysis patients, and CAPD is likely superior to CHD in this regard. Longitudinal studies are needed to determine the relative role of patient-selection and modality-related factors in determining the psychological and social adaptation (quality of life) of chronic dialysis patients.

Quality of life in chronic dialysis patients: Factors unrelated to dialysis modality

The quality of life (medical, psychological, and social adaptation) of 66 chronic dialysis patients was studied cross-sectionally. The participants had similar levels of medical, psychological, and social adaptation to those found in previous studies of chronic dialysis patients. Medical, psychological, and social adaptation are independent dimensions that are only weakly intercorrelated. When categorized by specific individual or treatment characteristics, men and those over age 51 had poorer medical and psychological adaptation than did women and younger dialysis patients. Duration of dialysis was not related to quality of life. Vocationally active as compared to vocationally inactive subjects had generally superior medical, psychological, and social adaptation. Male sex, age over 51, and vocational inactivity are all associated with poorer dialysis patient adaptation. The development of profiles of groups of dialysis patients at increased risk for poor adaptation may help in targetting scarce psychosocial intervention resources. Studies of the psychosocial efficacy of differing treatment modalities need to consider non--treatment-related factors that may affect patient psychosocial outcomes.

Relationship of Dialysis Modality and Other Factors to Cognitive Function in Chronic Dialysis Patients

To determine if dialysis modality may be an independent factor in the level of cognitive function in chronic dialysis patients, cognitive function was studied in 17 pairs of continuous ambulatory peritoneal dialysis (CAPD) and center hemodialysis (CHD) subjects matched for sex, age, diabetic status, and interval since dialysis onset. Data on current metabolic, medical, psychological, and vocational function status were obtained. Neuropsychological (NP) measures included the Number Cancellation Protocol (NCP), Trailmaking test forms A and B (TMT A, TMT B), Symbol Digit Modalities (SDM), and the Rey Auditory Verbal Learning Test (RAVLT). The CAPD subject group had consistently more efficient cognitive function than the CHD subject group. Regardless of modality, the groups of subjects under age 51 and those who were vocationally active had significantly better NP performance. No cognitive function differences were found in groups categorized by sex or duration of dialysis. Creatinine levels were more highly correlated with NP scores than were BUN levels, with higher creatinine levels associated with better cognitive function. Serum calcium, CO2, total protein, albumin, and SGOT levels also were correlated with NP scores. CAPD may be more effective than HD in reversing uremic encephalopathy by mechanisms mostly unrelated to serum creatinine and BUN levels. Longitudinal studies will be needed to determine if dialysis modality is an independent factor in the degree of reversal of uremic encephalopathy.

Psychological adjustment of adult bone marrow transplant donors whose recipient survives.

The psychosocial and psychiatric impact of donating bone marrow (BM) has received little study. This mail questionnaire study of bone marrow donors whose recipient had survived more than one year post-BMT was undertaken to document the psychosocial consequences of donation on “successful” BM donors. Demographic, mood state, self-esteem, current life satisfaction, and donor-recipient relationship characteristics, donor-perceived approval from family members, and donor attitudes about BM donation were studied. A companion study of BM recipients was also performed to provide comparative data on the psychosocial status of donors and recipients. As a group BM donors manifested little emotional distress, high self-esteem, and a high degree of current life satisfaction. Donors reported little change in their relationships with their recipients since the BMT. However the current quality of their relationships with their recipients was highly correlated with several recipient health status and psychosocial variables, suggesting that recipient deterioration might significantly adversely impact donor psychosocial status. From 10% to 20% of donors indicated at least some negative consequences of donating.

The relationship of social support to physical and psychological aspects of AIDS

Abstract This study explored the social support networks of 50 homosexual males with Acquired Immune Deficiency Syndrome (AIDS). Data gathered by self report questionnaires and medical records included diagnosis, number of medical symptoms, sociodemographics, extensive information about social support networks, mood state and physical health status. Variables associated with good psychological and physical adaptation included satisfaction with support, instrumental support and emotional support. Results of this study conflict with previous studies in that worse physical condition was not positively associated with satisfaction with support, was related to less instrumental support and was not associated with increased quantitative support. The measures of satisfaction with support, instrumental support and emotional support were all quite high, even though network size was small.

Cognitive function, mood and P3 latency: effects of the amelioration of anemia in dialysis patients.

Attention difficulties and psychomotor slowing associated with depressed mood affect the ability of individuals to perform on most neuropsychological tests. It has been suggested that latency of the P3 (P300) component of the event-related EEG potential is an index of neurocognitive status which is not affected by mood. Dialysis patients, who experience diminished dysphoric mood with the reversal of anemia when treated with recombinant human erythropoietin (rHuEPO), were tested for neurocognitive performance, mood and latency of P3. Prior to rHuEPO treatment mood was dysphoric, and neurocognitive testing showed mild deficits, but P3 latency was normal. After treatment, mood improved and neurocognitive test performance was normal. P3 amplitude increased over frontal areas, while P3 latency remained unchanged. Thus, in the case of dysphoric mood, P3 latency may provide a more accurate index of cognitive capacity (as opposed to level of functioning) than neurocognitive test measures.

Central Nervous System Function in Dialysis Patients: A Practical Approach

There are presently more than 300,000 patients worldwide receiving chronic dialysis. The goals of end-stage-renal disease (ESRD) treatment are not only to prolong life, but to do so in a way that maximizes its quality. Ideally, ESRD treatment should at least restore pre-uremic levels of biological, psychological and social adaptation (e.g., quality of life). The treatment modalities used should themselves impact minimally on patient adaptation, and should allow for maximum social, family, and psychological function. When new treatment innovations are introduced, their impact on brain function and quality of life must be assessed as part of the evaluation process. Why is an assessment of central nervous system function such an important consideration? Uremia is primarily a neurobehavioral syndrome characterized by diminished concentration, slowed and inefficient cognitive functioning, lowered arousal level, drowsiness, restlessness and, in the terminal stage, coma, and convulsions (1-7). This syndrome is incompletely reversed by dialysis and usually responds fully to renal transplantation. The prominence of these features was noted as early as 1836, when Richard Bright reported on his experience with uremic patients: ‘Yn the first eight cases, the termination, as well as the progress of the disease, bore the most perfect resemblance and the peculiar train of cerebral svmptoms, by which their advanced stages have been attended, have little analogy, when taken as a whole, with the s-vmptoms of any other cerebral affection” (8). Over the subsequent 150 years, considerable knowledge has accrued on the pathogenesis of uremic encephalopathy and the effects of various forms of dialysis and other therapeutic interventions. In view of the close coupling of this neurobehavioral syndrome and the overall clinical condition of the patient, Teschan and colleages have urged the development of quantitative methods for the assess-

Serum gastrin and the family environment in duodenal ulcer disease.

&NA; The study investigated the relationships between specific demographic, psychosocial, and physiological variables and the severity of duodenal ulcer disease in a population of patients with proved duodenal ulcer. Intercorrelations between psychosocial and physiological variables were also studied. The study design was cross sectional and retrospectively assessed life change units and DUD severity during the previous 6 months in 39 male ulcer clinic outpatients. Anxiety, depression, life change units, the family environment, ABO blood type, secretor status, serum pepsinogen, and serum fasting gastrin were evaluated. A DUD severity score was calculated from self‐reported ulcer pain symptoms and ulcer complications. Gastrin levels correlated significantly with three Family Environment Scale (FES) subscales, including: (a) independence, (b) achievement orientation, and (c) expressiveness. Duodenal ulcer disease severity scores correlated with Zung SDS scores, but not with state or trait anxiety, life change units, or the FES.