Inadequate dialysis increases gross mortality rate.

Area of Science:

• Nephrology
• Clinical Medicine
• Public Health

Background:

• Hemodialysis is a critical treatment for end-stage renal disease.
• Optimizing dialysis prescription and delivery is essential for patient outcomes.
• Variability in dialysis parameters can impact patient morbidity and mortality.

Purpose of the Study:

• To correlate hemodialysis parameters with patient morbidity and mortality.
• To investigate the relationship between prescribed and delivered dialysis (Kt/V) and patient outcomes.
• To identify specific dialysis parameters linked to increased mortality risk.

Main Methods:

• Correlation analysis of dialysis parameters (Kt/V, blood flow, dialysis time) with morbidity and mortality in 613 hemodialysis patients.
• Calculation of prescribed dialysis (Kt/V) and delivered dialysis (PUR).
• Analysis of predialysis blood urea nitrogen (BUN) levels in a subset of 80 patients.

Main Results:

• No correlation found between most dialysis parameters and mortality, except for a Kt/V < 0.8.
• A prescribed or delivered Kt/V < 0.8 was directly associated with a significantly increased mortality rate (p < 0.001).
• Mean delivered dialysis was 78% of the prescribed amount, with significant variability in patient Kt/V levels.

Conclusions:

• Inadequate dialysis, defined as Kt/V < 0.8, is a significant predictor of increased mortality in hemodialysis patients.
• The study highlights the critical importance of achieving adequate dialysis dose for patient survival.
• Monitoring and optimizing dialysis delivery are essential to reduce mortality risk.