Evaluation of CAPD prescription

Area of Science:

• Nephrology
• Renal Replacement Therapy
• Peritoneal Dialysis

Background:

• Continuous ambulatory peritoneal dialysis (CAPD) is a treatment for end-stage renal disease.
• Establishing optimal CAPD prescription adequacy is crucial for patient outcomes.
• Current recommendations include Kt/V > 1.5/week and/or creatinine clearance > 40 L/week/1.73 m².

Purpose of the Study:

• To evaluate the adequacy of CAPD prescription in a cohort of patients.
• To explore correlations between dialysis dose, nutritional markers, and clinical outcomes.
• To identify factors influencing CAPD prescription and patient well-being.

Main Methods:

• Prospective follow-up of 20 CAPD patients for an average of 38.6 months.
• Measurement of blood urea nitrogen, serum creatinine, body weight, residual renal function (Kr), normalized protein catabolic rate (NPCR), weekly Kt/V, and weekly creatinine clearance (CC).
• Analysis of dialysis prescription variations and their impact on biochemical and clinical parameters.

Main Results:

• Achieved average weekly Kt/V of 1.8 ± 0.3 and CC of 50.4 ± 10 L/week/1.73 m², exceeding recommendations.
• A positive correlation was observed between Kt/V and NPCR, suggesting increased dialysis dose leads to higher protein intake.
• No significant correlation found between dialysis prescription adjustments (e.g., weight changes) and biochemical markers, nor between dialysis adequacy and hospitalization rates.

Conclusions:

• While recommended dialysis targets were met, the direct relationship between CAPD prescription and morbidity requires further investigation.
• Nutritional status appears linked to dialysis dose, but weight and biochemical markers did not correlate with prescription changes.
• Larger prospective studies are essential to define adequate CAPD prescription ranges and their impact on patient mortality and morbidity.