Robotic Surgery for Benign and Low-Grade Malignant Diseases of the Duodenum.

Robotic duodenal surgery (RDS) is a treatment option for many benign and low-grade malignant duodenal conditions that are not amenable to endoscopic intervention and can avoid morbidity related to open surgery. A retrospective review of all patients undergoing RDS (non-Whipple) at a tertiary care center from 2010-2017 was carried out. Indications, procedural details, and outcomes were reviewed. Twenty-four patients underwent RDS during the study period: transduodenal resection in 6 patients (25%), wedge resection in 6 patients (25%), transduodenal ampullectomy in 5 patients (21%), sleeve (segmental) resection in 5 patients (21%), duodenojejunostomy bypass in 1 patient (4%), and duodenal diverticulectomy in 1 patient (4%). Median age was 68 years, 54 per cent were male, and median BMI was 27. Adenoma was the most common diagnosis (68%) followed by neuroendocrine tumor (25%), duodenal diverticulum (4%), and refractory superior mesenteric artery syndrome (4%). Seventy-one per cent were symptomatic with gastroinstestinal bleed being the most common presentation. Median tumor size was 27 mm, and the most common location was D2 (58%) followed by D3/D4 (25%) and D1 (17%). Median operating time was 205 minutes and estimated blood loss was 50cc with no patient requiring intraoperative transfusion. Median length of stay was five days (3-21 days). Overall complication rate was 41 per cent (10/24): minor biliopancreatic leak in three patients; ileus in three patients; bleeding, arrhythmia, hypoxia, and headache in one patient each. Three (12%) patients had significant complications (Clavien-Dindo grade ≥ 3) requiring laparoscopic or robotic reoperation, but all three were discharged on or before POD 6 with resolution of complication. Ninety-day readmission rate was 8 per cent and 90-day mortality was 0. Recurrent disease or strictures were not seen in any patient after a median follow-up of 16 months. It has been concluded that RDS is a safe alternative to open or laparoscopic duodenal resection for benign and low-grade malignant conditions not amenable to endoscopic intervention.