Case Report
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World J Gastrointest Endosc. Jun 16, 2013; 5(6): 297-299
Published online Jun 16, 2013. doi: 10.4253/wjge.v5.i6.297
Use of a novel covered self-expandable metal stent with an anti-migration system for endoscopic ultrasound-guided drainage of a pseudocyst
Félix Ignacio Téllez-Ávila, Álvaro Villalobos-Garita, Miguel Ángel Ramírez-Luna
Félix Ignacio Téllez-Ávila, Miguel Ángel Ramírez-Luna, Department of Endoscopy, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, CP 14000, México
Álvaro Villalobos-Garita, Gastroenterology Department, Hospital Calderón Guardia, CCSS, San José, Costa Rica
Author contributions: Téllez-Ávila FI and Vilalobos-Garita A designed the report; Téllez-Ávila FI, Villalobos-Garita A and Ramírez-Luna M were attending doctors for patient; Téllez-Ávila FI performed endoscopy procedure; Téllez-Ávila FI and Villalobos-Garita A organized the report; Téllez-Ávila FI and Villalobos-Garita A wrote paper.
Correspondence to: Félix Ignacio Téllez-Ávila, MD, MSc, PhD, Department of Endoscopy, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Vasco de Quiroga #15. Col. Sección XVI. Del. Tlalpan, Mexico City, CP 14000, Mexico. felixtelleza@gmail.com
Telephone: +52-5-54870900 Fax: +52-5-54870900
Received: March 6, 2013
Revised: April 4, 2013
Accepted: May 7, 2013
Published online: June 16, 2013
Processing time: 94 Days and 20.9 Hours
Abstract

The development of pseudocysts in patients with chronic pancreatitis has been reported in 23%-60% of cases and drainage is indicated when they become symptomatic. Endoscopic ultrasound-guided drainage with the placement of plastic or metallic stents to create a cystogastric anastomosis has been shown to be a reliable and efficacious maneuver. Metallic stent use appears to be a safe and effective alternative that shortens the length of time of the procedure and maintains a greater diameter in the cystogastric communication. However, important migration rates have been reported. The use of new metallic stents that are specially designed to prevent migration represents a promising development in the treatment of these group of patients that appears to be safe and effective for pseudocyst drainage and could importantly reduce migration rates, while at the same time having the advantage of a single step procedure and a larger fistula diameter in the endoscopic cystogastric anastomosis.

Keywords: Pancreatic pseudocyst; Metallic stents; Endoscopic ultrasound

Core tip: The use of novel covered self-expanding metallic stents that are specially designed to prevent migration represents a promising development in the treatment of patients with pancreatic pseudocysts that appears to be safe and effective for drainage and could importantly reduce migration rates, while at the same time having the advantage of a single step procedure and a larger fistula diameter in the endoscopic cystogastric anastomosis.