[Pseudocontinent colostomy - a manometric study].

The intraluminal pressure in terminal segment of colon has been studied at 42 patients undergone an exterpation of rectum and taken out pseudocontinent colostomy onto a front part of the abdomen. Schmidt's pattern smooth muscle muff, modified in the Clinic Surgery and Coloproctology at MU--Varna, has been transplanted around the colon, taken out as continent colostomy. The intraluminal pressure in the terminal segment of colon has been identified with an index of resistance on the side the smooth muscle muff against the spontaneous evacuation of the colon content.

[Pseudocontinent colostomy - comparative experimental study].

The possibilities of smoothmuscle sphincteroplastic have been researched experimentally at 29 mongrel dogs. Six types smoothmuscle plastics have been studied--a method of Feodorov and Odariuc, a method of Musiani, a pylor as a sphincter, an own operative method in three versions. A comparatively research upon a functional fitness of the offered plastics and Schmidt's method has been done.

[A modified autotransplantation method providing for continence in preternatural anus].

Over the period 1996 through 1998, a series of 58 patients undergo operation in the clinic of coloproctology--Medical University, Varna and in the clinic of surgery at the Naval Hospital--Varna, for continent preternatural anus formation on the anterior abdominal wall. A personal modification of Schmidt's (1978) method is used where a smooth-muscle cuff exerting pressure on the terminal segment of the large bowel, brought out as an artificial anus, is created. The operative procedure is combined with periodic colon irrigations in the postoperative period for the purpose of stimulating controlled intestinal content evacuation.

[Continent colostomy and colon irrigation].

The authors have studied a functional activity of a continent colostomy at 20 patients, undergone an abdomeno-perineal extirpation of rectum and carried out periodic colonirrigations, during a period of 6 months. A conus type, closed irrigating system has been used. The degree of an incontinency at patients has been compared before and after the beginning of the colonirrigations.