JOURNAL ARTICLE
MULTICENTER STUDY

Apex technique in the treatment of obstructed defecation syndrome associated with rectal intussusception and full rectal mucosa prolapse

F Sergio P Regadas, Mario Abedrapo, Jose Vinicius Cruz, Sthela M Murad Regadas, F Sergio P Regadas Filho
Diseases of the Colon and Rectum 2014, 57 (11): 1324-8
25285701

BACKGROUND: The aim of the current study was to demonstrate the use of a modified stapling technique, called the apex technique, to treat rectal intussusception and full rectal mucosal prolapse. It was conducted as a retrospective study at 3 centers (2 in Brazil and 1 in Chile).

TECHNIQUE: The apex technique is performed by using a HEM/EEA-33 stapler. A pursestring suture is placed at the apex of the prolapse, on the 4 quadrants, independent of the distance to the dentate line. A second pursestring is then placed to define the band of rectal mucosa to be symmetrically resected.

MAIN OUTCOME MEASURES: Outcome measures included width of the resected full-thickness rectal wall; the intensity of postoperative pain on a visual analog scale from 1 to 10; full mucosal prolapse and rectal intussusception assessed by physical examination, cinedefecography, or echodefecography; and change in the constipation scale.

RESULTS: Forty-five patients (30 women/15 men; mean age, 59.5 years) with rectal intussusception and full mucosal prolapse were included. The median operative time was 17 (range, 15-30) minutes. Bleeding after stapler fire requiring manual suture occurred in 3 patients (6.7%); 25 (55.6%) patients reported having no postoperative pain. Hospital stay was 24 hours. The mean width of the resected rectal wall was 5.9 (range, 5.0-7.5) cm. Stricture at the staple line was seen in 4 patients, of whom 1 required dilation under anesthesia. The median follow-up time was 120 (range, 90-120) days. A small residual prolapse was identified in 6 (13.3%) patients. Imaging demonstrated complete disappearance of rectal intussusception in all patients, and the mean postoperative constipation score decreased from 13 (range, 8-15) to 5 (range, 3-7).

CONCLUSIONS: The apex technique appears to be a safe, quickly performed, and low-cost method for the treatment of rectal intussusception. In this series, imaging examinations showed the disappearance of rectal intussusception, and a significant decrease in constipation score suggested improvement in functional outcomes.

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