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ISSN: 1642-5758
Anaesthesiology Intensive Therapy
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vol. 55
Review article

Comparing general anaesthesia versus sedation for endoscopic submucosal dissection: results from a systematic review and meta-analysis

Choy-May Leung
Rex Wan-Hin Hui

Department of Anaesthesiology, Queen Mary Hospital, Hong Kong
Department of Medicine, The University of Hong Kong, Hong Kong
Anaesthesiol Intensive Ther 2023; 55, 1: 9–17
Online publish date: 2023/03/02
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Endoscopic submucosal dissection (ESD) is an advanced endoscopic procedure for management of gastrointestinal tumours. ESD is usually performed under sedation. However, the use of general anaesthesia (GA) has been hypothesised to improve ESD outcomes. We performed a systematic review and meta-analysis to compare GA against sedation in ESD. A systematic literature search was performed on Cochrane Library, EMBASE and MEDLINE using the terms “General Anaesthesia”, “Sedation” and “Endoscopic submucosal dissection”. Original articles comparing GA versus sedation in ESD were included. The risk of bias and level of evidence were assessed by validated methods. This review is registered in PROSPERO (CRD42021275813). 176 articles were found in the initial literature search, and 7 articles (comprising 518 patients receiving GA and 495 receiving sedation) were included. Compared with sedation, GA was associated with higher en-bloc resection rates in oesophageal ESD (RR 1.05; 95% CI: 1.00–1.10; I2 = 65%; P = 0.05). GA patients also trended towards lower rates of gastrointestinal perforation in all ESD procedures (RR 0.62; 95% CI: 0.21–1.82; I2 = 52%; P = 0.06). Rates of intra- procedural desaturation and post-procedural aspiration pneumonia were lower in GA patients than in patients under sedation. The included studies had a moderate to high risk of bias, and the overall level of evidence was low. GA appears safe and feasible for ESD, yet high-quality trials will be required before GA can be regularly implemented for ESD.

general anaesthesia, sedation, endoscopic submucosal dissection

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