Peritoneal Dialysis vs. Hemodialysis: Survival Benefits for Kidney Failure
Summary of the Study: dialysis modality and Mortality
This systematic review and meta-analysis investigated the relationship between peritoneal dialysis (PD) and hemodialysis (HD) and patient survival. Here’s a breakdown of the key findings:
Study Design & Inclusion Criteria:
* Type: Systematic review and meta-analysis of existing studies.
* Participants: Patients with end-stage kidney disease or undergoing dialysis, over 18 years old, who started dialysis after 2000.
* Study Requirements: Included studies had to compare PD to HD with groups of at least 50 patients, and follow patients for at least 90 days post-dialysis initiation.
Key Findings:
* Overall: No statistically notable difference in mortality was found between PD and HD (HR 1.06, 95% CI 0.97-1.15). However,there was significant heterogeneity (I² = 94%),meaning the results varied significantly across studies.
* Age: A significant subgroup effect was observed based on age.
* Under 65: PD was associated with lower mortality compared to HD (HR 0.75, 95% CI 0.56-0.99).
* Over 65: The study did not report findings for this age group, only noting the importance of the age cut-off.
* Geographical Location: Mortality outcomes varied by continent:
* Europe & North America: Lower HRs (suggesting better outcomes with PD) were observed.
* Oceania & Asia: Higher HRs (suggesting worse outcomes with PD) were observed.
* No Significant Findings: No significant differences were found based on sex, diabetes, dialysis vintage, or study cohort inclusion period.
Conclusion:
The investigators concluded that PD and HD offer equivalent overall survival in modern dialysis cohorts. They recommend that dialysis modality selection should be individualized, considering patient preferences, clinical characteristics, lifestyle, and access to care.