Clinical application of self-made ENBD drainage tube in the treatment of pancreatic pseudocyst: a case report.

Objective: To explore the safety and efficacy of the modified endoscopic nasobiliary drainage (ENBD) tube in the treatment of pancreatic pseudocyst. Methods: A case of pancreatic pseudocyst following acute pancreatitis was reported, which was treated with endoscopic transgastric pancreatic cyst drainage using a modified ENBD tube. A double pigtail-like fixation device was fabricated by technically modifying a standard ENBD tube with standardized fabrication, sterilization and quality control procedures to achieve effective drainage of the cyst. The detailed fabrication and operation steps were recorded to ensure the reproducibility of the technology. Results: The operation was successful. Postoperatively, the cyst was significantly reduced in size, and the clinical symptoms disappeared. Re-examination by computed tomography (CT) 1 month after surgery showed complete resolution of the cyst, with the patient recovering well and no complications observed. During the 6-month follow-up, the patient had no recurrence of the cyst, good dietary and living conditions, and returned to normal agricultural production. Conclusion: This study is the first to report the clinical application of the modified ENBD drainage tube for transgastric drainage of pancreatic pseudocyst in China, and the success of the operation confirms that this method is safe, effective, and cost-effective. Compared with commercial plastic stents and metal stents, this modified device has obvious economic advantages on the premise of ensuring therapeutic effect, making it worthy of clinical promotion and application in primary hospitals and resource-limited areas.