Diseases of the colon and rectum · 1997
Influence of Parks' anal retractor on anal sphincter pressures.
Клиническое исследованиеСтатьяРандомизированное исследованиеНазвание и аннотация: Перевод пока не подготовлен
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van Tets W F, Kuijpers J H, Tran K, Mollen R, van Goor H
Аннотация
PURPOSE: The effects of the Parks' anal retractor on anal sphincter function were studied in a prospective, randomized trial. A closed hemorrhoidectomy was performed intra-anally in 20 patients using the Parks' anal retractor; in 20 other patients, the procedure was done perineally without the use of a retractor.
METHODS: Anal manometry was performed before and at 6 and 12 weeks after hemorrhoidectomy.
RESULTS: Mean squeeze pressure decreased by 4 percent whether or not a retractor was used. Mean resting pressure decreased by 23 percent after use of Parks' anal retractor (P = 0.01) compared with 8 percent when it was not used (P > 0,05).
CONCLUSIONS: The internal anal sphincter is easily damaged with the use of the Parks' anal retractor. When possible, its use should be avoided to obtain better manometric and functional results.
METHODS: Anal manometry was performed before and at 6 and 12 weeks after hemorrhoidectomy.
RESULTS: Mean squeeze pressure decreased by 4 percent whether or not a retractor was used. Mean resting pressure decreased by 23 percent after use of Parks' anal retractor (P = 0.01) compared with 8 percent when it was not used (P > 0,05).
CONCLUSIONS: The internal anal sphincter is easily damaged with the use of the Parks' anal retractor. When possible, its use should be avoided to obtain better manometric and functional results.