Dialysis for Chronic Kidney Failure: A Review

Area of Science:

• Nephrology
• Internal Medicine
• Dialysis Therapy

Background:

• Chronic kidney failure affects millions globally, necessitating renal replacement therapy.
• Maintenance dialysis (hemodialysis and peritoneal dialysis) is crucial for sustaining life by removing waste and excess fluid.
• The 5-year survival rate post-dialysis initiation is approximately 40%.

Purpose of the Study:

• To summarize current understanding of dialysis initiation and management.
• To highlight key considerations in dialysis modality and timing.
• To review common complications and challenges in maintenance dialysis.

Main Methods:

• Review of existing literature and clinical trial data on dialysis initiation and outcomes.
• Analysis of observational data comparing hemodialysis and peritoneal dialysis mortality.
• Synthesis of information on complications and management strategies for chronic kidney failure patients on dialysis.

Main Results:

• No mortality benefit observed in starting dialysis at higher estimated glomerular filtration rate (eGFR) versus lower eGFR levels.
• Similar 5-year mortality rates between hemodialysis and peritoneal dialysis.
• Common complications include cardiovascular events, infections (catheter-related bloodstream infections, peritonitis), and treatment of related systemic issues (anemia, hyperphosphatemia, hypertension).

Conclusions:

• Dialysis initiation timing should be guided by shared decision-making, considering patient symptoms, eGFR, and other clinical factors, rather than a strict eGFR threshold.
• Both hemodialysis and peritoneal dialysis are viable options with similar survival rates.
• Effective management of complications and patient preferences are vital for successful long-term dialysis therapy.