Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
(A) General anesthesia with concurrent epidural anesthesia is performed with the patient in the lithotomy position. Anal tone is routinely checked beforehand. (B) A deep Douglas’ pouch is often observed. (C, D) The rectum and mesentery are completely mobilized from the sacral promontory. The superficial dissectable/transectable layer (solid arrow), and not the deep dissectable/transectable layer (dotted arrow), should be traced to preserve the nerves
