[Direct dissection of urogenital diaphragm in abdominoperineal resection].
OBJECTIVE
To compare the clinical outcomes of two operative approaches of perineal dissection in rectal carcinoma undergoing abdominoperineal resection.


METHODS
A randomized controlled trial was conducted in a total of 126 patients with rectal cancer undergoing the Miles operation from June 2007 to June 2011 at Henan Provincial Cancer Hospital. They were divided into 2 groups. One group (Group A) underwent a direct dissection of urogenital diaphragm while another group (Group B) received the traditional operative method. And the duration of perineal surgery, rupture of rectum or tumor, urethral injury and the post-operative rate of perineal hemorrhage were compared between 2 groups.


RESULTS
Group A had a shorter duration of perineal surgery ((16 ± 5) min vs (23 ± 5) min, P = 0.032). And the differences were significant statistically. However the rupture of rectum or tumor, urethral injury and the post-operative rate of perineal hemorrhage were equivalent for two groups (1 vs 5, 2 vs 5, 0 vs 1, 1 vs 3, all P > 0.05).


CONCLUSIONS
A direct dissection of urogenital diaphragm offers more clinical advantages over the traditional operative method in abdominoperineal resection.
Department of General Surgery, Zhengzhou University, Zhengzhou, China.
Yu-zhou
YZ
Zhao
Guang-sen
GS
Han
Ying-kun
YK
Ren
Peng-fei
PF
Ma
Chao-min
CM
Lu
Yan-hui
YH
Gu
D000005:Abdomen / Q000601:surgery*; D000328:Adult; D000368:Aged; D013505:Digestive System Surgical Procedures / Q000379:methods*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010502:Perineum / Q000601:surgery*; D012004:Rectal Neoplasms / Q000601:surgery*; D012007:Rectum / Q000601:surgery