Zhang Q, Jin HY, Shen ZH, Ma XJ, Li CQ, Tang Z, Bai Y, Wang Z. Novel through-the-scope twin clip for the closure of GI wounds: the first experimental survival study in pigs (with videos).
Gastrointest Endosc 2021;
94:850-858.e2. [PMID:
33965383 DOI:
10.1016/j.gie.2021.04.027]
[Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 04/27/2021] [Indexed: 02/08/2023]
Abstract
BACKGROUND AND AIMS
We developed a through-the-scope twin clip (TTS-TC) for closing GI wounds. The objective of this study was to evaluate the efficacy and safety of the TTS-TC in GI wound closure.
METHODS
GI nonperforating and perforating wounds (≥2.5 cm) were created in live pigs. TTS-TCs were used to convert the large wounds into small wounds. The remaining small wounds were closed using conventional through-the-scope clips (TTSCs). The follow-up period was 1 month. Location and size of the wound, time of wound closure, intraoperative and postoperative adverse events, and conditions of wound healing were investigated.
RESULTS
Thirteen wounds were created in 5 live pigs, including 2 gastric nonperforating and 3 perforating wounds and 5 large intestinal nonperforating and 3 perforating wounds. The mean long and short diameters of the wounds were 4.1 (± .9) cm and 3.4 (± .7) cm, respectively. All wounds were successfully closed using the TTS-TCs combined with TTSCs. The total mean time for wound closure was 9.2 (± 5.3) minutes, and the mean time for using the TTS-TCs was 3.9 (± 4.7) minutes. During the 1-month follow-up period, no bleeding, perforation, or death occurred; all wounds healed with scar formation; and all TTS-TCs detached spontaneously.
CONCLUSIONS
The TTS-TC was successfully used to close large-sized GI wounds. The TTS-TC is a promising tool for large-size wound closure under flexible endoscopy.
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