Quality of life in dialysis: A Malaysian perspective

There is a growing interest to use quality of life as one of the dialysis outcome measurement. Based on the Malaysian National Renal Registry data on 15 participating sites, 1569 adult subjects who were alive at December 31, 2012, aged 18 years old and above were screened. Demographic and medical data of 1332 eligible subjects were collected during the administration of the short form of World Health Organization Quality of Life questionnaire (WHOQOL‐BREF) in Malay, English, and Chinese language, respectively. The primary objective is to evaluate the quality of life among dialysis patients using WHOQOL‐BREF. The secondary objective is to examine significant factors that affect quality of life score. Mean (SD) transformed quality of life scores were 56.2 (15.8), 59.8 (16.8), 58.2 (18.5), 59.5 (14.6), 61.0 (18.5) for (1) physical, (2) psychological, (3) social relations, (4) environment domains, and (5) combined overall quality of life and general health, respectively. Peritoneal dialysis group scored significantly higher than hemodialysis group in the mean combined overall quality of life and general health score (63.0 vs. 60.0, P < 0.001). Independent factors that were associated significantly with quality of life score in different domains include gender, body mass index, religion, education, marital status, occupation, income, mode of dialysis, hemoglobin, diabetes mellitus, coronary heart disease, cerebral vascular accident and leg amputation. Subjects on peritoneal dialysis modality achieved higher combined overall quality of life and general health score than those on hemodialysis. Religion and cerebral vascular accident were significantly associated with all domains and combined overall quality of life and general health.     

Relationship between quality of life and child traffic fatalities

Traffic injuries are the leading cause of morbidity and mortality of children around the world. Economic development and quality of life are main components of public health. Using canonical correlation analysis, this study examined the relationship between quality of life and traffic fatality among children. Data were collected from 19 countries by using World Health Organization and OECD statistics. The results indicated that there is a strong relationship between quality of life and children traffic fatality. Growing quality of life has become protective against child traffic accident mortality. Increasing in gross national income per capita, life expectancy at birth number of years, road motor vehicles per thousand population, and share of persons of working age (15-64 years) in employment also increases children traffic safety.     

Physical disability, psychological status, and health-related quality of life in older hemodialysis patients and age-matched controls

We aimed at comparing the elderly adults and normal subjects with regard to their disability, psychological status, and quality of life (QOL). One hundred and twenty-five dialysis patients and 61 controls were recruited in the study. Depression and anxiety symptoms of the patients were evaluated with the Psychological Symptom Screening List (SCL 90-R). For evaluating the disability, the Rivermead mobility index (RMI) was utilized. For evaluating the QOL, we used the short form-36 (SF-36) scale. The Rivermead mobility index of the patients (9.6 +/- 3.4) was found. When compared with controls, dialysis patients had higher levels of disability (p = 0.0001). Depression and anxiety symptom scores of these patients were also significantly higher than that of the controls (p < 0.05). There was a correlation between the disability and depression symptom scores (r: 0.171, p = 0.037). Both physical and mental capacity scores of the dialysis patients were lower than those of the controls (p < 0.05 and p < 0.05) QOL scores for elderly hemodialysis patients were found to be lower. Their disability was higher, making them dependable on others during their daily lives. Specific exercise programs should be developed for these patients. Even the smallest effort in this regard will result in improvements in physical functioning while bringing them significant benefits.     

Comparison of effects of automated peritoneal dialysis and continuous ambulatory peritoneal dialysis on health-related quality of life, sleep quality, and depression

Few studies investigating the effects of automated peritoneal dialysis (APD) and continuous ambulatory peritoneal dialysis (CAPD) on health-related quality of life (HRQoL), depression, and sleep quality exist in the literature. We aimed to determine differences between APD and CAPD modalities with respect to these parameters. Twenty APD and 48 CAPD patients were included in this cross-sectional study. Biochemical values were measured at outpatient evaluation. A modified postsleep inventory was used to evaluate sleep quality. Health-related quality of life and depression were evaluated by the Short Form of Medical Outcomes Study and Beck Depression Inventory, respectively. Automated peritoneal dialysis and CAPD patients were compared in terms of sleep quality, HRQoL, and depression. Our results showed that there were no significant differences between APD and CAPD in any of the studied parameters. Moderate or severe sleep problems were found in 60% and 69% of the APD and CAPD patients, respectively. Mean HRQoL scores for any of the 8 Short Form of Medical Outcomes Study-36 domains were similar in the 2 groups. The mean physical component score was 51.1 ± 21.2 and 48.9 ± 18.2 in APD and CAPD patients, respectively (P=0.672). The mean mental component score was 47.5 ± 20.1 in APD patients, whereas it was 42.4 ± 19.5 in CAPD patients (P=0.291). Depression was detected in 70% of APD and 62.5% of the CAPD patients. The mean Beck Depression Inventory scores were also similar in the 2 groups. This study showed that HRQoL, sleep quality, and depression were similar in APD and CAPD patients.     

Does a history of peritoneal dialysis result in an impaired gastrointestinal life quality?

Peritoneal dialysis (PD) invariably induces sclerotic changes in the peritoneal membrane. The impact of these changes on the well-being of PD patients has not been studied sufficiently. In a matched-pair analysis, the gastrointestinal life quality of patients with a history of PD was compared with end-stage renal disease patients who never performed PD, using a standardized questionnaire (gastrointestinal life-quality index [GLQI]). We identified all patients in our dialysis unit who underwent PD between 1989 and 2001 and who were alive in October 2001 (PD patients; n=53). Patients who were treated by hemodialysis (HD patients) were recruited as pairs. Hemodialysis and PD patients did not differ in gastrointestinal life quality (GLQI: HD 106.0+/-16.4 points; PD 104.0+/-16.7 points; p=0.70). Gastrointestinal life quality was neither correlated with the number of peritonitis episodes, nor with the duration of PD treatment. Peritoneal dialysis treatment is not associated with a long-term impairment of gastrointestinal life quality.     

The effects of digital inclusion and ICT access on the quality of life: A global perspective

The role of Information Communication Technologies (ICTs) on the quality of life (QoL) has garnered much research interest recently given the pervasiveness of ICTs in our daily lives. However, whilst the evidence on the effects of ICTs in improving QoL at the individual country level is mixed, the evidence at the global level has not also been fully understood. Besides, the evidence on the linkages between ICTs, digital inclusion, and QoL has been underexplored in information systems research. Even though existing empirical research has largely provided specific results using single country data, there remains a gap in our understanding of the dual effects of digital inclusion and ICT access on QoL and the mediating role of ICT usage at the global level. This study seeks to address these by relying on secondary data from 121 countries for 2018 and structuration theory as a theoretical lens. The results from our PLS-SEM analysis show that digital inclusion and ICT access significantly influence QoL at the global level. Furthermore, our results show support for the mediating effects of ICT usage on the linkages between digital inclusion and QoL. The findings from this study provide key insights that explain how QoL may be enhanced through ICTs.     

声学和人的生活质量

二十一世纪将是和平繁荣的世纪。科学将主要为提高人的生活质量而比二十世纪更高的速度发展。声学主要是和平的科学，将对人们的健康、舒适生活作出更大贡献。     

Fibromyalgia: its prevalence and impact on the quality of life on a hemodialyzed population

Fibromyalgia syndrome (FMS) is characterized by widespread musculoskeletal pain. It has negative effects on quality of life and has been poorly investigated in specific populations. Our aim was to determine the prevalence of FMS in Brazilian hemodialysis (HD) patients and to investigate its effects on the quality of life. We investigated 311 patients on HD who were submitted to physical examination towards the classification of FMS. All subjects from FMS and control groups were submitted to laboratorial investigation and completed questionnaires of quality of life. The prevalence of FMS was 3.9%, which was close to that of the general population. Most patients were females and from non-Caucasian races. No difference between FMS and control groups was observed regarding race, dialysis adequacy, nutritional status and level of schooling. Ionized calcium was higher in the FMS group than in the control group. There was no association between FMS and secondary hyperparathyroidism. On the other hand, FMS was associated with worse quality of life, depression and anxiety. In conclusion, the prevalence of FMS in HD patients was similar to that of the general population. It was associated with decreasing quality of life in HD patients, in addition to higher degrees of depression and anxiety. No laboratory tests could identify FMS patients on HD. Fibromyalgia syndrome subsequently follows without a well-established mechanism of pathogenesis, and seems to be due to multifactorial causes. Its true impact on the quality of life of HD patients deserves more attention by nephrologists.     

The influence of blood volume-controlled ultrafiltration on hemodynamic stability and quality of life

Dialysis hypotension occurs frequently and is associated with increased morbidity, mortality, and may influence quality of life. We investigated the influence of blood volume (BV)-controlled ultrafiltration on hemodynamic stability and quality of life in a prospective multiple crossover study. Nineteen patients were consecutively treated with standard hemodialysis (HD), BV-controlled ultrafiltration, and again with standard ultrafiltration during 3-week phases, during which different hemodynamic parameters, ultrafiltrate quantities, dry weight, and quality of life were measured. Blood volume-controlled ultrafiltration resulted in increased hemodynamic stability: systolic blood pressure was significantly higher after treatment with BV-controlled HD compared with both standard treatments (p=0.018 and 0.043, respectively). Also, systolic blood pressure reduction, as a measure of blood pressure stability, was significantly smaller during the BV-controlled phase (-3.9 mmHg) compared with both standard phases (-13.7 and -11.0 mmHg): p=0.003 and 0.035, respectively. No difference was found in the occurrence of large decreases of blood pressure (>30 mmHg), decreases below 90 mmHg systolic pressure, or subjective complaints during treatment or after treatment between both treatment modalities. During the course of the study, the dry weight decreased significantly from mean 73.3 to mean 70.9 kg, and the amount of ultrafiltrate was significantly larger using BV-controlled HD compared with standard treatment (mean 2407 vs. mean 2266 mL; p=0.035). Quality of life, measured by visual analog scales (VAS), showed discrete but no consistent differences between study phases. We conclude that BV-controlled HD increases hemodynamic stability and ultrafiltrate amount compared with a standard treatment. No consistent change in quality of life is found between both treatment modalities.     

Quality of life is not related with liver disease severity but with anemia, malnutrition, and depression in HCV-infected hemodialysis patients

Hepatitis C virus (HCV) infection may deteriorate quality of life. The relationship between HCV infection and quality of life in hemodialysis (HD) patients is unknown. The demographic characteristics, comorbidities, biochemical parameters, and Malnutrition-Inflammation Score (MIS) were recorded. Child-Pugh classification, Beck Depression Inventory, and SF-36 were performed. Liver histopathology was examined. Thirty-two patients (21 Child-Pugh-A, 11 Child-Pugh-B) were included. There was high-grade portal necroinflammatory activity in 14, high-grade lobular necroinflammatory activity in 26, and hepatic fibrosis in 19 patients. Three patients had cirrhosis. Patients with a high stage of liver fibrosis had lower social functioning scores than patient with a low stage of fibrosis (P= 0.011). The only correlation was between aspartate aminotransferase and the physical function subscale (r=−0.395, P= 0.025). None of the SF-36 scores differed between Child-Pugh A and B patients. Instead, most of the SF-36 subscale and summary scores were related with hemoglobin, albumin, MIS and Beck Depression Score. Quality of life in HCV-infected HD patients was independent of liver disease severity anchors, but was correlated with anemia, malnutrition, and depression.     

Quality of life development during initial hemodialysis therapy and association with loss of residual renal function

Introduction: Health related quality of life (HRQOL) is markedly reduced in hemodialysis patients compared to the general population. We investigated the course of self‐reported HRQOL over time and the association with selected factors, focusing on changes in glomerular filtration rate (GFR). Methods: Eighty‐two newly started hemodialysis patients from the SAFIR cohort filled out the Kidney Disease Quality of Life Short Form Version 1.3 (KDQOL‐SF^TM) questionnaire at baseline, 6 and 12 months. The SAFIR study was a randomized, placebo‐controlled, double‐blind intervention study, examining the effects of the angiotensin II receptor blocker irbesartan. HRQOL was a secondary outcome measure. Main inclusion criteria: Dialysis vintage <1 year, left ventricular ejection fraction >30% and urinary output >300 mL/day. GFR was measured with mean creatinine and urea clearance from 24‐hour urine collections at baseline, 6 and 12 months. Findings: Irbesartan treatment did not affect HRQOL. Patients were pooled into one group for further analyses. Decline in GFR correlated significantly with decreasing HRQOL over time. HRQOL was stable over time, with a slight nonsignificant tendency toward improved HRQOL. The largest HRQOL‐differences (positive values equal improved HRQOL) observed during the 12 month study period were (mean[95% confidence interval]): Burden of kidney disease:6.4[?2.2;15.0], Role limitations‐physical:12.7[?2.1;27.5], and Role limitations‐emotional:9.7[?5.2;24.6]. Comorbidity, especially diabetes, hospital admissions, female gender, and age were strongly associated with lower HRQOL in cross sectional analysis. Discussion: Preservation of residual renal function seems to be important for HRQOL. In newly started HD patients, HRQOL showed little change after 12 months. HRQOL was negatively affected by comorbidity, especially diabetes, hospital admissions, female gender, and age.     

Effects of truncation and elimination on composite fatigue life

An experimental investigation has been carried out regarding load-sequence effects on the fatigue life of composite structures. Different elimination levels were considered for various load spectra and for constant amplitude block loading. The spectra considered were an early design spectrum for the Gripen fighter aircraft, spectra associated with the aft fitting of the fin and to the upper fitting of the wing, and the compression dominated spectrum “Short Inverted Falstaff”. Both experimental and calculated results show, that the elimination level can be set to approximately 50% of the maximum range occurring in the load sequence. This means that considerable time and cost reductions in structural verification testing can be achieved. This will also have impact on a life prediction methodology since only a characteristic number of loading states need to be considered. The resulting life for block testing, especially for a load ratio of R=−1, is highly influenced by elimination of high load ranges in the sequence. Spectrum fatigue test results accounting for ranges up to 90% of maximum range, the remaining load states eliminated, can be mapped on constant amplitude data. At chosen elimination levels, approximately 80–90% of loading states were eliminated. Calculation results with the same technique, i.e. accounting for a characteristic number of cycles, show promising results.     

Religiousness, mental health, and quality of life in Brazilian dialysis patients

Patients with chronic kidney disease often use religion as a coping strategy to relieve suffering and serve as a source of strength. The aim of this study was to identify religious aspects associated with mental health and quality of life in Brazilian dialysis patients. A cross-sectional study was performed involving two dialysis centers in Brazil. Patients were selected consecutively over three typical dialysis treatment days. The questionnaire was self-administered and covered the following aspects: socio-demographic aspects, religiousness (using the Portuguese version of the Private and Social Religious Practice Scale), quality of life (World Health Organization Quality of Life brief Scale Brief Version), depression and anxiety (Beck Inventory), and pain grade. For statistical analysis, the hypothesis that different religious variables are associated (positively or negatively) with depressive/anxiety symptoms and quality of life in these patients was tested using linear regression, controlling for confounding variables. A total of 205 patients were invited to participate and 133 (64.8%) agreed to fill out the questionnaire. On the adjusted model, reading religious literature was found to be inversely associated with depressive symptoms (P < 0.001). In addition, the psychological domain of quality of life was positively associated with an increase in patient religiosity (P = 0.030) and greater religious importance for recovery from their dialysis condition (P = 0.016), whereas the environmental domain was positively associated with greater religious importance for recovery (P = 0.032). No religious aspects were associated with anxiety symptoms. Religiousness is associated with less depressive symptoms and better quality of life in Brazilian dialysis patients. Nephrologists should evaluate the patient's spirituality and religion in order to provide more integrative care.     

Modeling the Dose of Home Dialysis

The growing interest in daily dialysis and combined continuous and intermittent dialysis treatments has created the need for a dialysis dosing model that is valid over a wide range of dosing frequency and intensity. Three models have been described for this purpose and are reviewed here. They have in common the concept of a continuous clearance value which is equivalent to the summed intermittent dialysis prescribed. The continuous clearance models all define a point on the saw-toothed blood urea nitrogen (BUN) concentration profile and calculate the continuous clearance required to achieve this at the same urea generation rate. The points modeled are the peak predialysis concentration (pkKt/V), the average Co (standard Kt/V, stdKt/V), and time-averaged urea concentration (TAC), which is termed equivalent renal clearance (EKRt/V). At the present time the only data for evaluation of clinical relevance of the three models is continuous ambulatory peritoneal dialysis (CAPD) outcome. The stdKt/V predicts that optimal CAPD outcome requires weekly stdKt/V 2.0, while the pkKt/V and EKRt/V models predict optimal doses of 1.8 and 3.0. These results suggest that the stdKt/V is the most realistic model, but data over much higher levels of therapy are not yet available to judge generalizability. The stdKt/V model was used to assess dose in two hemodialysis studies with 5 to 6 dialyses per week and showed that in one study the stdKt/V was only 2.0, while in the second study it was 5.6. These results show that dose can vary widely with a similar number of dialyses per week and point to the need for a generalized dosing model to guide and compare studies of daily home dialysis.     

Quality of life in chronic hemodialysis patients in Russia

The aim of this cross-sectional study was to compare health-related quality of life (HRQOL) of Russian hemodialysis (HD) patients with the general population and international data, and to determine factors influencing HRQOL. One thousand forty-seven HD patients from 6 dialysis centers were studied (576 male, age 43.5 +/- 12.5 years, HD duration 55.0 +/- 47.2 months). Health-related quality of life was evaluated by SF-36. Self-appraisal Depression Scale (W. Zung), State-Trait Anxiety Inventory, and Level of Neurotic Asthenia Scale were used. Hemodialysis patients scored significantly lower than the general Russian population in the majority of SF-36 scales. The only exception was the Mental Health score, which was even better than the general population. The Mean physical component score (PCS) of HD patients was 36.9 +/- 9.7, and the mental component score was (MCS) 44.2 +/- 10.5. In multiple linear regression analysis, increasing age, HD duration, depression level and number of days of hospitalization in the past 6 months were significant independent predictors of low PCS along with a low level of serum albumin. Advancing age was also a predictive factor for low MCS along with increase of HD duration, depression level, trait anxiety, and level of asthenia. As far as we know, this is the first study to report on HRQOL of a large sample of Russian HD patients performed using SF-36. Compared with the general population, Russian HD patients had significantly lower scores on the majority of SF-36 scales, especially in the physical domain. The mean PCS and MCS were comparable with European data for HD patients. A number of demographic, clinical, and psychological variables affect HRQOL.     

Nutritional education for management of osteodystrophy: Impact on serum phosphorus,quality of life,and malnutrition

Introduction Osteodystrophy management includes dietary phosphorus restriction, which may limit protein intake, exacerbate malnutrition‐inflammation syndrome and mortality among hemodialysis patients. Methods A multicenter randomized controlled trial was conducted in Lebanon, to test the hypothesis that intensive nutrition education focused on phosphorus‐to‐protein balance will improve patient outcomes. Six hemodialysis units were randomly assigned to the trained hospital dietitian (THD) protocol (210 patients). Six others (184 patients) were divided equally according to the patients’ dialysis shifts and assigned to Dedicated Dietitian (DD) and Control protocols. Patients in the THD group received nutrition education from hospital dietitians who were trained by the study team on renal dietetics, but had limited time for hemodialysis patients. Patients in the DD group received individualized nutritional education on dietary phosphorus and protein management for 6 months (2‐hour/patient/month) from study renal dietitians. Patients in the control group continued receiving routine care from hospital dietitians who had limited time for these patients and were blinded to the study. Serum phosphorus (mmol/L), malnutrition‐inflammation score (MIS), health‐related quality of life (HRQOL) index and length of hospital stay (LOS) were assessed at T0 (baseline), T1 (postintervention) and T2 (post6 month follow up). Findings Only the DD protocol significantly improved serum phosphorus (T0:1.78 ± 0.5, T1:1.63 ± 0.46, T2:1.69 ± 0.53), 3 domains of the HRQOL and maintained MIS at T1, but this protective effect resolved at T2. The LOS significantly dropped for all groups. Discussion The presence of competent renal dietitians fully dedicated to hemodialysis units was superior over the other protocols in temporarily improving patient outcomes.