Walled Off Pancreatic Necrosis

Pancreatic necrosis is a serious complication of acute pancreatitis. Pancreatic necrosis involves the irreversible death of pancreatic tissue, which can lead to severe health issues, including infections and an increased risk of death. An endoscopic procedure called direct endoscopic necrosectomy (DEN) is typically performed to remove this necrotic pancreatic tissue as a minimally invasive treatment. This procedure is performed using a thin, flexible, lighted tube called an endoscope and endoscopic instruments that are used with working channels through the scope. Current methods for removing necrotic tissue involve using endoscopic devices such as snares, baskets, nets, and forceps. However, these standard methods are often not very effective because the necrotic tissue can be sticky and hard to grasp. This DEN procedure is part of regular clinical care to treat this condition and remove necrotic tissue from the pancreas. For this research study, the same DEN procedure will be followed with the exception of the device used for the removal of the necrotic tissue. Instead of using forceps, snares, or other traditional tools, a cryoprobe will be used. Cryoprobes work by using extremely cold temperatures to freeze and adhere to the necrotic tissue, making it easier to remove. This method might be better because it can secure larger tissue samples and potentially reduce complications associated with traditional methods. Cryotechnology is successfully used in endoscopy to remove necrotic tissue, foreign bodies and more, but has not been extensively tested in pancreatic necrosis. Cryoprobes are FDA approved medical devices with an established safety record. They are used successfully in very sensitive areas such as the lungs. This study aims to evaluate the safety and effectiveness of cryotechnology for DEN.

The goal of this randomized control trial is to assess whether nasojejunal feed is better than oral nutrition in patients who are undergoing endoscopic cystogastrostomy of walled off necrosis following acute pancreatitis. It will also try to answer, the incidence of infections and feed tolerance. The main question it tries to answer is 1. whether nasojejunl feed is better than oral feed in patients undergoing endoscopic cystogastrostomy in walled off necrosis following acute pancreatitis 2. How much infections they develop, whether they are able to tolerate the feed, weight gain and reintervention rates in each group

This pilot clinical study aims to assess the feasibility and clinical relevance of bedside monitoring of microenvironmental conditions within infected walled-off pancreatic necrosis (WOPN). WOPN is a serious complication of acute pancreatitis, often associated with infection, organ failure, and the need for drainage or surgical intervention. Although infection is a key factor in prognosis, little is known about the local chemical environment inside the infected collections. In this study, a sterile, miniaturized probe will be temporarily introduced into the necrotic cavity during standard percutaneous drainage. The goal is to record local microenvironmental parameters (such as acidity or related values) and monitor their changes over time. By comparing these values with clinical data (e.g., inflammatory markers, microbiology, need for surgery), the study aims to determine whether such measurements can provide additional information about infection severity and treatment response. The study does not involve any experimental treatment. All patients will receive standard medical care, including antibiotics, imaging, and drainage according to international guidelines. Participation is voluntary. Only patients who provide informed consent will be enrolled.