Dissolution of Cholesterol Gallbladder Stones by MethylTert-Butyl Ether Administered by Percutaneous Transhepatic Catheter

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Abstract
We treated 75 patients with symptomatic cholesterol gallstones by dissolving the stones with methyl tert-butyl ether (MTBE) instilled into the gallbladder through a percutaneous transhepatic catheter. The MTBE was continuously infused and aspirated manually four to six times a minute, for an average of five hours per day for one to three days; the treatment was monitored by fluoroscopy.