Hemodialysis and peritoneal dialysis-health-related quality of life: systematic review plus meta-analysis

BACKGROUND

Patients with end-stage renal disease undergoing haemodialysis experience a variety of stressors leading to decreased level of quality of life (QoL). Thus, in this study, we aimed to review the current literature and identify factors affecting the health-related QoL (HRQoL) in these patients.

METHODS

A total of 147 studies were extracted from databases of Web of Science, PubMed, Scopus, Google Scholar, and Embase published between January 2000 and December 2020. Data were analysed using R software and results were reported with reference to Preferred Reporting Items for Systematic Reviews and Meta-Analyses standards.

RESULTS

A total of 623 728 patients undergoing dialysis participated in 147 studies in which QoL was assessed by means of two valid questionnaires, including Short-Form 36 (SF-36) and Kidney Disease Quality of Life (KDQOL)-short form V.1.3. Total HRQoL score for patients undergoing dialysis measured by KDQOL was 64.25 (95% CI 55.67 to 72.82). Based on SF-36, the mean score of mental health items was higher than the mean score of physical health condition. Furthermore, meta-regression based on the geographical place of residence revealed that the highest QoL in patients was observed in Japan, 66.96 (95% CI 63.65 to 70.28) and Brazil, 58.03 (95% CI 53.45 to 62.6).

CONCLUSION

Studies conducted on HRQoL among patients undergoing dialysis recommend useful strategies to clinicians, letting them assess patients' QoL in terms of a wide range of physical, mental and environmental aspects.

Subjective cognitive complaints in end-stage renal disease: a systematic review and meta-analysis

Cognitive impairment is common in patients with end-stage renal disease (ESRD) and is associated with compromised quality of life and functional capacity, as well as worse clinical outcomes. Most previous research and reviews in this area were focused on objective cognitive impairment, whereas patients' subjective cognitive complaints (SCCs) have been less well-understood. This systematic review aimed to provide a broad overview of what is known about SCCs in adult ESRD patients. Electronic databases were searched from inception to January 2022, which identified 221 relevant studies. SCCs appear to be highly prevalent in dialysis patients and less so in those who received kidney transplantation. A random-effects meta-analysis also shows that haemodialysis patients reported significantly more SCCs than peritoneal dialysis patients (standardised mean difference -0.20, 95% confidence interval -0.38 to -0.03). Synthesis of longitudinal studies suggests that SCCs remain stable on maintenance dialysis treatment but may reduce upon receipt of kidney transplant. Furthermore, SCCs in ESRD patients have been consistently associated with hospitalisation, depression, anxiety, fatigue, and poorer quality of life. There is limited data supporting a strong relation between objective and subjective cognition but preliminary evidence suggests that this association may be domain-specific. Methodological limitations and future research directions are discussed.

Comparable outcomes between a combination of peritoneal dialysis with once-weekly haemodialysis and thrice-weekly haemodialysis: a prospective cohort study

BACKGROUND

Outcomes of a combination of peritoneal dialysis (PD) and once-weekly haemodialysis (PD + HD) have not been extensively studied.

METHODS

This prospective cohort study using the Japanese Society for Dialysis Therapy Renal Data Registry included those who transitioned from PD to PD + HD therapy or thrice-weekly HD from 2011 to 2018. Exposure was PD + HD therapy compared with thrice-weekly HD. The outcome was time to all-cause or cause-specific death. Associations between PD + HD therapy and outcomes were examined by Cox regression. Sensitivity analyses were performed by propensity score (PS) matching, PS matching with a shared frailty model in which dialysis facilities were treated as a random effect, inverse probability weighting (IPW), PS adjustment, PS stratification, competing risk regression and on-treatment analyses in which data were censored at the transition to thrice-weekly HD for those on PD + HD therapy.

RESULTS

During the study period, 1001 subjects transitioned to PD + HD therapy and 2031 to thrice-weekly HD. During a median follow-up of 3.5 years, 575 subjects died. All-cause, cardiovascular, congestive heart failure-related or infection-related mortality were not significantly different between those on PD + HD and those on thrice-weekly HD [hazard ratio 0.95 (95% confidence interval 0.78-1.16), 1.26 (0.92-1.72), 1.24 (0.77-1.99) and 0.89 (0.57-1.39), respectively]. Sensitivity analyses yielded similar results except that PD + HD therapy was associated with significantly lower all-cause mortality by PS adjustment and PS matching with the shared frailty model and lower infection-related mortality by PS adjustment and IPW.

CONCLUSIONS

PD + HD therapy was associated with similar or potentially lower mortality compared with thrice-weekly HD. Considering a flexible lifestyle, PD + HD therapy could be a great option.

Cognitive Dysfunction and Health-Related Quality of Life in Patients with End-Stage Renal Disease Undergoing Hemodialysis in Comparison with Patients Undergoing Peritoneal Dialysis: A Cross-Sectional Study

Background

This study compared the effects of peritoneal dialysis and hemodialysis on cognitive dysfunction and health-related quality of life (HRQOL) in end-stage renal disease (ESRD) patients and analyzed other potential influencing factors.

Material/Methods

A total of 265 patients who received dialysis at our hospital were included and divided into the hemodialysis group (n=115) and the peritoneal dialysis group (n=150). The cognitive performance was assessed by the Beijing version of the Montreal Cognitive Assessment. The Kidney Disease Quality of 36-Item Short Form Survey and a kidney disease-related quality of life assessment were used for evaluating HRQOL. Univariate and multivariate linear regression analyses were used to explore the effects of dialysis on cognitive dysfunction and HRQOL.

Results

As compared with the hemodialysis group, the peritoneal dialysis group had lower scores on the Montreal Cognitive Assessment (β=−8.35, 95% CI: −9.85 to −6.86), 36-Item Short Form Survey (β=−10.20, 95% CI: −11.94 to −8.45), and kidney disease-related quality of life assessment (β=−8.67, 95% CI: −10.10 to −7.23). After adjustment for sex, age, BMI, marital status, educational level, income level, presence of diabetes, duration of kidney disease, duration of dialysis, and dialysis frequency, the results were consistent with that of the crude model.

Conclusions

In the present study, patients receiving peritoneal dialysis had worse cognitive dysfunction and worse HRQOL compared to patients receiving hemodialysis, which might lead to poorer outcomes of ESRD patients. The related factors affecting cognitive dysfunction and HRQOL were also explored, which could help clinicians to determine the optimal treatment for ESRD patients.

Clinical feasibility of transfer to combined therapy with peritoneal dialysis and hemodialysis for patients on peritoneal dialysis: A prospective multicenter study in Japan

INTRODUCTION

Although combined therapy with peritoneal dialysis (PD) and hemodialysis (HD) is widespread in Japan, its clinical utility has been reported only in retrospective or before-and-after test lacking a control group.

METHODS

We conducted a prospective, multicenter, observational cohort study of 176 incident PD patients and compared patient survival and changes in clinical parameters between patients on different dialysis modalities.

RESULTS

During a median follow-up of 41 months, 47 patients transferred to combined therapy and 35 patients transferred directly to HD. Patients transferred to combined therapy had a significantly better survival than those transferred directly to HD. However, we could not establish this difference in a multivariate analysis because only six patients died among these groups. The decreases in urea nitrogen and serum creatinine were more prominent among patients directly transferred to HD.

CONCLUSION

This is the first report revealing clinical feasibility of transfer to combined therapy for PD patients.

Quality of life assessment in patients on chronic dialysis: Comparison between haemodialysis and peritoneal dialysis at a national hospital in Vietnam

OBJECTIVES

End-stage renal disease (ESRD) is a chronic disease that can adversely affect the patient's quality of life (QoL) in terms of functional limitation and cognitive impairment. This study aimed to identify the factors associated with QoL in patients with ESRD undergoing dialysis at a national hospital in Vietnam.

METHODS

A descriptive cross-sectional study was conducted among outpatients aged ≥18 years who underwent haemodialysis (HD) or peritoneal dialysis (PD) for at least 3 months at Thong Nhat Hospital, Ho Chi Minh City, Vietnam from May 2020 to July 2021. QoL was measured using the validated Vietnamese version of the EuroQol-5 Dimensional-5 Level (EQ-5D-5L). The factors associated with the QoL of patients with ESRD undergoing dialysis were identified using multiple linear regression analysis.

RESULTS

In total, 131 (73.6%) and 47 (26.4%) patients underwent HD and PD, respectively. Overall, 178 (55.6%) patients were men (median age, 66 [56-79] years). The mean EQ-5D-5L score was significantly higher in patients undergoing PD than in those undergoing HD (0.848 ± 0.183 vs. 0.766 ± 0.231; p = 0.030). Older age (β = -0.006; p < 0.001) and peptic ulcer disease (β = -0.083; p = 0.029) were associated with lower QoL scores. PD treatment was associated with higher QoL scores (β = 0.065; p = 0.046).

CONCLUSIONS

It is necessary to improve the QoL of patients undergoing dialysis, especially of elderly patients and patients with peptic ulcer disease. PD may be a better method for maintenance dialysis, if applicable, in terms of QoL.

Employment of patients with kidney failure treated with dialysis or kidney transplantation-a systematic review and meta-analysis

BACKGROUND

Patients with kidney failure treated with dialysis or kidney transplantation experience difficulties maintaining employment due to the condition itself and the treatment. We aimed to establish the rate of employment before and after initiation of dialysis and kidney transplantation and to identify predictors of employment during dialysis and posttransplant.

METHODS

This systematic review and meta-analysis were carried out according to the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) guidelines for studies that included employment rate in adults receiving dialysis or a kidney transplant. The literature search included cross-sectional or cohort studies published in English between January 1966 and August 2020 in the PubMed, Embase, and Cochrane Library databases. Data on employment rate, study population, age, gender, educational level, dialysis duration, kidney donor, ethnicity, dialysis modality, waiting time for transplantation, diabetes, and depression were extracted. Quality assessment was performed using the Newcastle-Ottawa Scale. Meta-analysis for predictors for employment, with odds ratios and confidence intervals, and tests for heterogeneity, using chi-square and I2 statistics, were calculated. PROSPERO registration number: CRD42020188853.

RESULTS

Thirty-three studies included 162,059 participants receiving dialysis, and 31 studies included 137,742 participants who received kidney transplantation. Dialysis patients were on average 52.6 years old (range: 16-79; 60.3% male), and kidney transplant patients were 46.7 years old (range: 18-78; 59.8% male). The employment rate (weighted mean) for dialysis patients was 26.3% (range: 10.5-59.7%); the employment rate was 36.9% pretransplant (range: 25-86%) and 38.2% posttransplant (range: 14.2-85%). Predictors for employment during dialysis and posttransplant were male, gender, age, being without diabetes, peritoneal dialysis, and higher educational level, and predictors of posttransplant: pretransplant employment included transplantation with a living donor kidney, and being without depression.

CONCLUSIONS

Patients with kidney failure had a low employment rate during dialysis and pre- and posttransplant. Kidney failure patients should be supported through a combination of clinical and social measures to ensure that they remain working.

Prevalence of Depression and Sleep Disorders in Patients on Dialysis: A Cross-Sectional Study in Qatar

Patients with end-stage renal disease treated with dialysis have poor quality of life (QOL). Improving QOL in these patients with multiple comorbidities is a large challenge. We performed a cross-sectional study to evaluate the prevalence and associated factors of depression and sleep disorders in this population. Our primary aim was to evaluate QOL measures in dialysis patients in Qatar through a series of validated questionnaires mainly concerning depression and sleep disorders. Our secondary aim was to study the associations of age, sex, and comorbid conditions with the QOL measures. We hypothesized that end-stage renal disease (ESRD) patients on dialysis would have disturbed QOL due to both ESRD and dialysis and comorbidities. This prospective cross-sectional study included adult ESRD patients receiving either hemodialysis (HD) or peritoneal dialysis (PD) in the main tertiary dialysis unit in Qatar. We administered two surveys to evaluate depression (the Center for Epidemiologic Studies Depression Scale, http://www.bmedreport.com/archives/7139) and sleep disorders (the Pittsburgh Sleep Quality Index, https://www.sleep.pitt.edu/instruments/). We also reviewed patient demographics, comorbidities, and laboratory test results to evaluate any associated factors. We randomly studied 253 patients (62% on HD and 38% on PD). Overall, 48% of patients had depression, while 83.8% had sleep disorders. The PD had more poor sleepers than the HD group (89.1% versus (vs.) 75%, p=0.003). Most of our dialysis patients had poor sleep, but it was more significant in the elderly group 109 (90%) than in the young group 103 (78%) (p=0.009). Patients with diabetes mellitus (DM) had significantly more prevalence of poor sleep (131 (88.5%)) than those without DM (81 (77.1%), p=0.01). More female patients had depression than male patients (52% vs. 25%, p < 0.0001; odds ratio: 3.27 (95% confidence interval: 1.9-5.6), p < 0.0001). This is the first study in Qatar to evaluate depression and sleep disorders in patients on dialysis therapy.

Need for evidence on long-term prognosis of PD+HD: a commentary

Combination therapy with peritoneal dialysis and hemodialysis (PD+HD) is an alternative dialysis method for patients with end-stage kidney disease (ESKD). The complementary use of once-weekly HD expedites to achieve adequate dialysis and enables to prolong PD duration. Although PD+HD has been widely employed among Japanese PD patients, it is much less common outside Japan. Clinical evidences are still not enough, especially in long-term prognosis and appropriate treatment duration, suitable patients, and generalizability. A retrospective cohort study by Chung et al. (BMC Nephrol 21:348, 2020) compared the risk of mortality and hospitalization between PD patients who were transferred to PD+HD and those who were transferred to HD in Taiwan. Because the mortality and hospitalization rates did not differ between the groups, the authors concluded that, PD+HD may be a rational and cost-effective treatment option. It should be noted that the effects of PD+HD on long-term prognosis are still unknown due to too-short PD+HD duration. However, the study identified the high-risk patient population and showed the generalizability of PD+HD. PD+HD is a treatment of choice in patients with ESKD who prefer PD lifestyles even after decline in residual kidney function.

Ultrafiltration volume by once-weekly hemodialysis is a predictor of technique survival of combination therapy with peritoneal dialysis and hemodialysis

Overhydration is a major cause of technique failure of peritoneal dialysis (PD). Hence, we investigated the impact of ultrafiltration (UF) volume by once-weekly hemodialysis (HD), excess volume beyond their dry weight, on technique survival of PD and HD combination therapy (PD+HD). Forty-six anuric PD+HD patients were divided into three groups according to baseline UF volume by HD: low-UF (<mean - 1SD), middle-UF (≥mean - 1SD and <mean + 1SD), and high-UF (≥mean + 1SD). High-UF group showed larger extracellular water normalized to height (P = .038) and longer HD sessions (P < .001) compared with low-UF group, whereas low-UF group was older than middle-UF group (P = .001). Technique survival rate was significantly lower in high-UF group than in low and middle-UF groups (P < .001), and the rates at 44 months were 80%, 90%, 20% in low, middle, and high-UF groups, respectively. Chronic overhydration was the leading cause of technique failure for all. This study suggests that fluid overload remains a major cause of technique failure of PD even after once-weekly HD is added.

Hospitalization for Patients on Combination Therapy With Peritoneal Dialysis and Hemodialysis Compared With Hemodialysis

Introduction

Combination therapy with peritoneal dialysis and hemodialysis (PD+HD) is widely used for PD patients with decreased residual kidney function in Japan; however, hospitalization for this combined dialysis has not been investigated so far. We compared the risk of hospitalization for PD+HD with that for HD.

Methods

A multicenter, prospective observational study was conducted on 42 PD+HD and 42 HD patients matched for age and diabetic nephropathy. The main outcome measure was the cumulative incidence of hospitalization for any cause assessed with the Kaplan-Meier method. Hospitalization rates (the number of admissions per 100 patient-years) associated with dialysis modality were also calculated. The impact of dialysis modality on time to hospitalization was analyzed using the Cox proportional hazard model.

Results

There was no significant difference between groups in terms of age, sex, dialysis vintage, diabetic nephropathy, and comorbidities. The cumulative incidence of hospitalization did not significantly differ between the groups (log-rank test, P = 0.36). Although total hospitalization rates were 66.0 in PD+HD and 59.2 in HD, hospitalization rates for the sum of PD-related infections (a composite of catheter-related infection and peritonitis) and vascular access troubles were 21.7 in PD+HD and 7.2 in HD. On univariate Cox proportional hazard analysis, dialysis modality had no significant impact on time to hospitalization.

Conclusion

The risk of hospitalization was not significantly different between PD+HD and HD, although PD+HD patients had a higher risk of dialysis access–related complications than HD patients.