Prevention of Chyle-leak After Major Pancreatic Surgery

Chyle is lymphatic fluid present in the wall of the intestine. It flows trough lymphatic vessels to cisterna chyli and to venous circulation carrying lymphatic fluid, long-chain triglyceride fatty acids and proteins, fatty soluble vitamins and electrolytes. Lymphatic vessels are at risk of damage in pancreatic surgery and especially when there is vein/artery resection and reconstruction at the same time. Chyle leak can be seen in post-operative patients when there is milky substance coming out of the surgical drains and drain fluids triglyceride level is high (>1,5 mmol/l). Patients with chyle leak are at risk of dehydration, malnutrition, sepsis and prolonged stay at the hospital. Usually treatment of chyle leak is with drains and no-fat diet up to 14 days after surgery. Sometimes combined with somatostatine-analogue-treatment. In this study investigators are randomizing patients with major pancreatic surgery in to two groups. Intervention group will start no-fat diet, including MCT-oil, right after surgery up to 2 weeks. And control group will start the diet if chyle-leak is seen. End goal is to reduce chyle-leaks in post-operative patients and analyze if it has an effect on patients prognosis.