[Continuous ambulatory peritoneal dialysis and respiratory pulmonary functions]

Area of Science:

• Nephrology
• Pulmonology
• Internal Medicine

Context:

• Chronic renal insufficiency (CRI) necessitates renal replacement therapy, with Continuous Ambulatory Peritoneal Dialysis (CAPD) being a common modality.
• CAPD utilizes dialysis solutions with varying glucose concentrations, which may influence systemic physiological parameters.
• Pulmonary function and acid-base balance are critical indicators of overall health, particularly in patients with chronic diseases.

Purpose:

• To investigate the impact of CAPD using dialysis solutions with 1.5% and 2.5% glucose on acid-base balance and respiratory pulmonary functions in patients with CRI.
• To assess whether different glucose concentrations in CAPD solutions affect key biochemical markers and lung function parameters.

Summary:

• This study examined 15 patients with CRI undergoing CAPD, evaluating acid-base balance and respiratory functions. Biochemical markers for acid-base balance remained within normal or lower reference ranges.
• Respiratory function tests revealed decreased maximum expiratory flow rates (MEF50, MEF25) and diffusion lung capacity (DLCO).
• These pulmonary function changes were potentially attributed to reduced lung elasticity, increased peripheral airway resistance, anemia, and mild pulmonary edema. Importantly, CAPD with varying glucose concentrations did not significantly affect these parameters.

Impact:

• The findings suggest that CAPD, even with different glucose concentrations, does not substantially impair acid-base homeostasis or respiratory functions in stable CRI patients without co-existing pulmonary or cardiac conditions.
• Understanding these physiological effects is crucial for optimizing CAPD management and patient care.
• Further research could explore long-term effects or interventions for the observed pulmonary function decrements.