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Transanal hybrid colon resection: techniques and outcomes for benign colorectal diseases.

Surgical Endoscopy 2020 August
BACKGROUND: Transanal hybrid rectal and colon resection have been introduced in recent years at dedicated surgical centers. The anus is used as a natural orifice for large size access. The use of transanal hybrid colectomy techniques is still in its infancy with outcomes and unique complications being identified. The purpose of this work is the evaluation of outcomes for transanal hybrid colon resections (ta-CR), including intra operative and postoperative complications, results, and advantages.

METHODS: A prospectively maintained database was analyzed. Inclusion criteria were any patient who underwent ta-CR for rectal prolapse, slow transit, obstructive defaecation, and chronic sigmoid diverticulitis. Patients were excluded from ta-CR if BMI > 30, major previous abdominal surgery, or presence of a large inflammatory mass in diverticulitis. Transanal access was used for all operative steps requiring access of more than 5 mm, such as staplers, large graspers, and specimen retrieval. Data acquisition and analysis was performed for operative time, complications, and postoperative quality of life.

RESULTS: From 2012 to 2017, 82 patients underwent ta-CR [33 males, 49 females, median age 58 (24-80)]. Transanal-subtotal colectomy and ta-CR for constipation was performed in 12 patients; ta-CR and rectopexy in 31, and ta-CR for diverticulitis was performed in 39 patients. Conversion to traditional approach was required in 3 cases (3.6%). Intraoperative complication included 1 rectal tear requiring intervention. Post-op complications included 3 leaks requiring laparoscopic and 1 open revision, the latter developed wound infection and an incisional hernia. Gastrointestinal Quality of Life Index (GIQLI) improved significantly from preoperative 89 to postoperative 119 (p < 0.001). No patients with ta-CR without open revision developed a hernia post-op with median 18 months follow-up.

CONCLUSIONS: ta-CR is a safe and effective NOTES Hybrid technique for colorectal procedures in selected patients with benign colon disorders. GIQLI shows improvement and this technique can have the potential in preventing wound and hernia complications.

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