Zenker's diverticulotomy with bipolar tissue sealer: Retrospective review of safety and short-term outcomes.

Objectives: The objective of this study is to analyze and report the institution's experience using the Enseal bipolar tissue sealing device to perform endoscopic Zenker's diverticulotomy. Safety and early functional outcomes are presented as primary endpoints of the study.
Materials & Methods: This is a retrospective study of consecutive patients with Zenker's diverticulum (ZD) treated via a transoral approach using a rigid endoscope and a bipolar tissue sealer between 2011 and 2019. Demographic data, ZD size, complications and preoperative versus postoperative symptoms were assessed. The Eating Assessment Tool-10 (EAT-10) questionnaire was used to evaluate functional outcomes, and statistical comparisons were made using the student's t-test.
Results: Nineteen ZD patients were identified who underwent rigid endoscopic diverticulotomy using a bipolar tissue sealer. The mean age was 71 years and 74% were male. The mean diverticulum size was 3.1 cm. There were no intraoperative or postoperative complications identified. Average pre-operative EAT-10 score was 21 and post-operative EAT-10 score was 12 at one to two weeks after surgery (p = .05).
Conclusions: Evidence from this preliminary study of endoscopic Zenker's diverticulotomy using the Enseal device indicates that it is both safe and effective. Several features of the device, including its narrow profile, articulation and rotation capability, rapid repeatable activation, and low risk of collateral thermal injury, make it an appealing option for endoscopic Zenker's diverticulotomy.
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