Johnson F E
Surgery. 1981 Jul;90(1):108-9.
Pelvic collections of pus may be drained transrectally in some cases. When this is done, satisfactory fixation of drains within the cavity is often difficult and frequently uncomfortable for the patient. Creation of a rectal counterincision permits a loop-shaped drain to be used. This provides good drainage, enhances patient comfort, and can be removed easily.
在某些情况下，盆腔积脓可经直肠引流。当进行这种操作时，将引流管在腔内妥善固定往往很困难，而且患者通常会感到不适。做一个直肠对口切开可使用环形引流管。这样能实现良好的引流，提高患者舒适度，且易于取出。
