Wurbs D, Dammermann R, Ossenberg F W, Classen M
Endoscopy. 1978 Aug;10(3):199-203. doi: 10.1055/s-0028-1098294.
An indwelling T-drain is a valuable access to the common bile duct if the conventional EPT fails in the case of choledocholithiasis. It is often easier to cannulate the duodenal papilla from the common bile duct than from the duodenum. A papillotome of the Erlangen type introduced through the T-drain into the papilla spontaneously has the correct cutting direction. The incision is controlled endoscopically. If a patient has undergone Billroth II operation, the particularly difficult cannulation and incision of the papilla is make much easier by the descending technique. Two variants of the endoscopically controlled descending electropapillotomy were successfully performed.
对于胆总管结石患者，如果传统内镜逆行胰胆管造影（EPT）失败，留置T形引流管是进入胆总管的一种有效途径。通常，从胆总管插入十二指肠乳头比从十二指肠插入更容易。通过T形引流管自发插入乳头的埃尔朗根型乳头切开刀具有正确的切割方向。切口通过内镜控制。如果患者接受了毕Ⅱ式手术，采用下行技术可使特别困难的乳头插管和切开变得容易得多。成功实施了两种内镜控制下行电乳头切开术的变体。
