Pigtail Stent Procedure and Patient Care

Procedure Overview

Double pigtail stents are the preferred option for internal drainage procedures, with plastic stents without intervening side holes between the ends being recommended for optimal outcomes, according to the American Gastroenterological Association 1
Pigtail stents are commonly used for internal drainage in various conditions including pancreatic pseudocysts, leaks after bariatric surgery, and ureteral obstruction, as recommended by the American College of Surgeons and the World Society of Emergency Surgery 1, 2
Multidisciplinary involvement including an endoscopist, interventional radiologist, and surgeons is required in complicated cases to decide on the best approach to drainage, as suggested by the European Society of Gastrointestinal Endoscopy 4

The procedure typically involves initial imaging (CT or MRI) to delineate anatomy and plan the approach, with prophylactic antibiotics recommended before the procedure and continued post-procedurally, as advised by the American College of Radiology and the Infectious Diseases Society of America 4
Fluoroscopy guidance is essential for monitoring guidewire position and stent placement, and puncture of the target area using an appropriate gauge needle (typically 19-gauge for pancreatic procedures) is performed, as recommended by the Society of Interventional Radiology 1, 4

For pancreatic procedures, 7 Fr straight plastic stents without intervening side holes are most commonly used, and double pigtail plastic stents are preferred for internal drainage as they have lower migration rates compared to straight stents (9% vs 23%), according to the American Gastroenterological Association 1
Short and smaller-caliber stents (7F 3 cm or 7F 5 cm) are recommended to minimize damage to surrounding structures, as suggested by the Clinical Gastroenterology and Hepatology society 5

Patients should be monitored for signs of complications including bleeding, infection, or perforation, and continued antibiotic therapy is recommended to prevent infection, as advised by the American College of Surgeons and the Infectious Diseases Society of America 1, 2, 4
Routine stent exchange should be performed every 2-4 weeks until the cavity has contracted (usually <2 cm in size), and regular imaging is necessary to monitor response to therapy, as recommended by the Clinical Gastroenterology and Hepatology society 5

For leaks and fistulae after bariatric surgery, endoscopic internal drainage by pigtail plastic stents is considered an effective treatment, with higher success rates, shorter treatment duration, and lower adverse event rates, as reported by the World Society of Emergency Surgery 2
Double pigtail stents are preferred when there is a small-caliber tract connecting a leak orifice to a collection, and one or two plastic double pigtail stents should be inserted to maintain the patency of the cystogastrostomy after EUS-guided drainage, as recommended by the American Gastroenterological Association and the European Society of Gastrointestinal Endoscopy 4, 5