Chylothorax

Chylothorax is a rare but serious complication after lung cancer surgery and mediastinal lymph node dissection. This multicenter randomized trial will evaluate whether drinking 40 mL of extra-virgin olive oil 4 hours before surgery can reduce the occurrence of chylothorax after curative lung cancer resection. A total of 1,036 adults with resectable lung cancer will be assigned in a 1:1 ratio to preoperative oral olive oil or standard preoperative fasting without additional olive oil. The primary outcome is the occurrence of chylothorax within 30 days after surgery. Secondary outcomes include repeat surgery, postoperative complications, chest drainage, length of chest tube use, length of hospital stay, and the safety and tolerability of the intervention.

This European multicenter observational study aims to evaluate the real-world use, timing, and outcomes of lymphatic interventions in patients with congenital heart disease and/or primary lymphatic disorders. The study will examine the effectiveness of diagnostic imaging and interventional techniques, such as lymphatic embolization, in improving clinical symptoms, biomarkers, and fluid-related complications. The central question is whether early diagnosis and targeted intervention can lead to clinically meaningful improvements and reduced need for reintervention. Data collected retrospectively and prospectively from participating centers will help identify predictors of outcome, assess disease severity, and inform standardized diagnostic and therapeutic pathways across Europe.