Nightly intermittent peritoneal dialysis: targets and prescriptions

Area of Science:

• Nephrology
• Renal Replacement Therapy

Background:

• Peritoneal dialysis (PD) is a key treatment for end-stage renal disease (ESRD).
• Individualized PD prescriptions are essential for adequate solute clearance.
• Nocturnal intermittent peritoneal dialysis (NIPD) is a specific PD modality with unique considerations.

Purpose of the Study:

• To evaluate the effectiveness of NIPD in ESRD patients.
• To identify patient populations where NIPD is particularly indicated.
• To establish target clearance goals for NIPD and emphasize clinical evaluation.

Main Methods:

• Analysis of PD prescription parameters including body surface area, weight, residual renal function, and peritoneal transport characteristics.
• Assessment of solute clearance (small and middle molecules) in NIPD, particularly with "dry day" regimens.
• Review of clinical outcomes and clearance targets (Kt/V, creatinine clearance).

Main Results:

• Adequate PD can be achieved in most ESRD patients with individualized prescriptions.
• NIPD is indicated for patients with significant residual renal function or high-transport membranes.
• "Dry day" NIPD significantly reduces small-solute (10-15%) and middle-molecule (50%) clearance.
• NIPD patients without residual renal function are at risk of inadequate treatment.

Conclusions:

• Individualized PD prescriptions are paramount for ESRD management.
• NIPD requires careful patient selection and monitoring to prevent inadequate solute clearance.
• Target weekly Kt/V of 2.2 and creatinine clearance of 66 L/1.73 m2 are suggested, but clinical evaluation remains primary.