BACKGROUND: Endoscopic therapy of walled-off pancreatic necrosis (WOPN) via direct intracavitary debridement is described. OBJECTIVE: To compare direct endoscopic necrosectomy with conventional transmural endoscopic drainage for the treatment of WOPN. DESIGN: Retrospective, comparative study. SETTING: Academic tertiary-care center. PATIENTS: Patients referred to Mayo Clinic, Rochester, Minnesota, since April 1998 for endoscopic drainage of WOPN. INTERVENTIONS: Each patient underwent standard endoscopic drainage that consisted of transmural cavity puncture, dilation of the fistula tract, and placement of a large-bore stent(s). Patients were classified into the direct endoscopic necrosectomy group if, during any of their procedures, adjunctive direct endoscopic necrosectomy was performed; all others were in the standard drainage group. MAIN OUTCOME MEASUREMENTS: Success was defined as resolution of the necrotic cavity without the need for operative or percutaneous intervention. RESULTS: Forty-five patients were identified who met study criteria: 25 underwent direct endoscopic necrosectomy, and 20 underwent standard endoscopic drainage. There were no differences in baseline patient or cavity characteristics. Successful resolution was accomplished in 88% who underwent direct endoscopic necrosectomy versus 45% who received standard drainage (P < .01), without a change in the total number of procedures. The maximum size of tract dilation was larger in the direct endoscopic necrosectomy group (17 mm vs 14 mm, P < .02). Complications were limited to mild periprocedural bleeding with equivalent rates between groups. LIMITATIONS: Retrospective, referral bias, single center. CONCLUSIONS: Direct endoscopic necrosectomy achieves higher rates of resolution, without a concomitant change in the number of endoscopic procedures, complication rate, or time to resolution compared with standard endoscopic drainage for WOPN. The need for fewer postprocedural inpatient hospital days and a decrease in the rate of cavity recurrence are also likely benefits of this technique.
BACKGROUND: Endoscopic therapy of walled-off pancreatic necrosis (WOPN) via direct intracavitary debridement is described. OBJECTIVE: To compare direct endoscopic necrosectomy with conventional transmural endoscopic drainage for the treatment of WOPN. DESIGN: Retrospective, comparative study. SETTING: Academic tertiary-care center. PATIENTS: Patients referred to Mayo Clinic, Rochester, Minnesota, since April 1998 for endoscopic drainage of WOPN. INTERVENTIONS: Each patient underwent standard endoscopic drainage that consisted of transmural cavity puncture, dilation of the fistula tract, and placement of a large-bore stent(s). Patients were classified into the direct endoscopic necrosectomy group if, during any of their procedures, adjunctive direct endoscopic necrosectomy was performed; all others were in the standard drainage group. MAIN OUTCOME MEASUREMENTS: Success was defined as resolution of the necrotic cavity without the need for operative or percutaneous intervention. RESULTS: Forty-five patients were identified who met study criteria: 25 underwent direct endoscopic necrosectomy, and 20 underwent standard endoscopic drainage. There were no differences in baseline patient or cavity characteristics. Successful resolution was accomplished in 88% who underwent direct endoscopic necrosectomy versus 45% who received standard drainage (P < .01), without a change in the total number of procedures. The maximum size of tract dilation was larger in the direct endoscopic necrosectomy group (17 mm vs 14 mm, P < .02). Complications were limited to mild periprocedural bleeding with equivalent rates between groups. LIMITATIONS: Retrospective, referral bias, single center. CONCLUSIONS: Direct endoscopic necrosectomy achieves higher rates of resolution, without a concomitant change in the number of endoscopic procedures, complication rate, or time to resolution compared with standard endoscopic drainage for WOPN. The need for fewer postprocedural inpatient hospital days and a decrease in the rate of cavity recurrence are also likely benefits of this technique.
Authors: Arnaud Lemmers; Damien My Tan; Mostafa Ibrahim; Patrizia Loi; Daniel De Backer; Jean Closset; Jacques Devière; Olivier Le Moine Journal: Obes Surg Date: 2015-11 Impact factor: 4.129
Authors: Alireza Haghshenasskashani; Jerome M Laurence; Vu Kwan; Emma Johnston; Michael J Hollands; Arthur J Richardson; Henry C C Pleass; Vincent W T Lam Journal: Surg Endosc Date: 2011-06-09 Impact factor: 4.584
Authors: Mohamed Abdelhafez; Mayada Elnegouly; M S Hasab Allah; Mostafa Elshazli; Hany M S Mikhail; Ayman Yosry Journal: Surg Endosc Date: 2013-04-13 Impact factor: 4.584