How can pleuroperitoneal (dialysate) leaks present in a PD patient, and how are they managed?

• A. Shortness of breath, chest discomfort, and pleural effusion; stop PD, drain fluid, and evaluate with imaging; may require temporary switch to hemodialysis and possible surgical repair.
• B. Abdominal pain only; manage with dietary changes.
• C. Skin rash around the catheter exit site.
• D. No symptoms; observe.

Answer: (A)

Pleuroperitoneal leaks happen when dialysis fluid from the belly finds a way into the chest through a small defect in the diaphragm. This most often shows up on the right side and leads to a pleural effusion that contains dialysate. Clinically, the patient usually develops new or worsening shortness of breath and chest discomfort, and the pleural fluid on imaging is consistent with dialysis fluid rather than a typical pneumothorax or infection. Because dialysate is entering the chest, the effectiveness of PD drops, causing reduced ultrafiltration.

Management starts with stopping PD to prevent more fluid from leaking and to let the defect heal. The pleural effusion is drained if it’s causing significant symptoms, and imaging studies (like chest X-ray or CT) along with diagnostic tests such as peritoneal scintigraphy are used to confirm the leak and its route. In many cases, patients are switched temporarily to hemodialysis to maintain solute clearance while the leak heals. If the leak is persistent or large, surgical repair of the diaphragmatic defect or other procedures like pleurodesis may be indicated, typically with involvement of thoracic surgery. The key is to control the leak, restore effective dialysis, and address the defect if conservative management isn’t enough.