OBJECTIVE: Clogging of plastic biliary stents used in malignant biliary obstruction remains a major problem. In vitro studies have shown that side holes, a standard feature of commercially available stents, may contribute to stent clogging. In a pilot study, we designed and prospectively evaluated a new biliary stent without side holes (Tannenbaum stent). METHODS: Over a 12-month period, 55 consecutive patients (mean age 75 yr) with malignant distal common bile duct obstruction and without papillary or duodenal tumor infiltration underwent endoscopic placement of the Tannenbaum stent for the palliative treatment of jaundice. RESULTS: Tannenbaum stent insertion was technically successful on the first attempt in all patients and was accompanied by a significant reduction in mean serum bilirubin levels (10.1-1.6 mg%). Fifty-one patients were followed until death (median survival of 130 days); the symptomatic occlusion rate was 16%, the dislocation rate was 8%, and the median stent patency was 64 wk. Aside from stent clogging, there were no complications. CONCLUSION: The Tannenbaum stent provided effective palliative biliary decompression in all patients. The patency rate was longer than that reported in the literature for conventional plastic stents with side holes and compared favorably with patency rates that have been reported for the metallic expandable biliary stents. The results of this pilot study are encouraging and warrant further studies.
OBJECTIVE: Clogging of plastic biliary stents used in malignant biliary obstruction remains a major problem. In vitro studies have shown that side holes, a standard feature of commercially available stents, may contribute to stent clogging. In a pilot study, we designed and prospectively evaluated a new biliary stent without side holes (Tannenbaum stent). METHODS: Over a 12-month period, 55 consecutive patients (mean age 75 yr) with malignant distal common bile duct obstruction and without papillary or duodenal tumor infiltration underwent endoscopic placement of the Tannenbaum stent for the palliative treatment of jaundice. RESULTS: Tannenbaum stent insertion was technically successful on the first attempt in all patients and was accompanied by a significant reduction in mean serum bilirubin levels (10.1-1.6 mg%). Fifty-one patients were followed until death (median survival of 130 days); the symptomatic occlusion rate was 16%, the dislocation rate was 8%, and the median stent patency was 64 wk. Aside from stent clogging, there were no complications. CONCLUSION: The Tannenbaum stent provided effective palliative biliary decompression in all patients. The patency rate was longer than that reported in the literature for conventional plastic stents with side holes and compared favorably with patency rates that have been reported for the metallic expandable biliary stents. The results of this pilot study are encouraging and warrant further studies.
Authors: P Katsinelos; D Paikos; J Kountouras; G Chatzimavroudis; G Paroutoglou; I Moschos; A Gatopoulou; A Beltsis; C Zavos; B Papaziogas Journal: Surg Endosc Date: 2006-08-07 Impact factor: 4.584
Authors: Mouen A Khashab; Susan Hutfless; Katherine Kim; Anne Marie Lennon; Marcia I Canto; Sanjay B Jagannath; Patrick I Okolo; Eun Ji Shin; Vikesh K Singh Journal: Dig Dis Sci Date: 2012-01-20 Impact factor: 3.199
Authors: Chang-Il Kwon; Mark A Gromski; Stuart Sherman; Jeffrey J Easler; Ihab I El Hajj; James Watkins; Evan L Fogel; Lee McHenry; Glen A Lehman Journal: Dig Dis Sci Date: 2016-05-06 Impact factor: 3.199
Authors: Gabriel Chan; Jeffrey Barkun; Alan N Barkun; Eric Valois; Albert Cohen; Gad Friedman; Jose Parent; Jonathan Love; Robert Enns; Vicky Baffis; Mansour Jabbari; Peter Szego; Larry Stein; Neena Abraham Journal: J Gastrointest Surg Date: 2005-04 Impact factor: 3.452