Stolte M, Wiessner V, Schaffner O, Koch H
Leber Magen Darm. 1980 Dec;10(6):293-301.
The vascularization of the Papilla Vateri was investigated by angiography, histology and morphometry in 55 samples obtained at autopsy; four main types may be distinguished. The bleeding risk accompanying endoscopic papillotomy in general is low because of the anatomy of the arterial supply of the papilla. The average diameter of the vessels in the plexus arteriosus papillae is about 0,98 mm, it is only 0,43 mm in the proximal part of the papilla (that is to say, the part adhering to the bile duct). The arteria retroduodenalis crosses the ductus choledochus on the average 37.5 mm from the tip of the papilla. In rare cases more excessive arterial bleeding may occur, since there is a crossing of the arteria retroduodenalis through the region of papillotomy in about 4% of the cases. A high bleeding risk exists during 8 days after the first of a multiple step papillotomy procedure, since during this period vascularization of the granulating tissue is still extensive.
通过血管造影、组织学和形态测量法对55例尸检样本的 Vater 乳头血管化情况进行了研究；可区分出四种主要类型。由于乳头动脉供应的解剖结构，一般来说，内镜乳头切开术伴随的出血风险较低。乳头动脉丛中血管的平均直径约为0.98毫米，在乳头近端（即附着于胆管的部分）仅为0.43毫米。十二指肠后动脉平均在距乳头尖端37.5毫米处穿过胆总管。在约4%的病例中，十二指肠后动脉穿过乳头切开区域，因此在罕见情况下可能会发生更多的动脉出血。在多步骤乳头切开术的首次手术后8天内存在高出血风险，因为在此期间肉芽组织的血管化仍然广泛。
