Meta-Analysis:
The best surgical strategy for anal fistula based on a network meta-analysis
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Abstract
Qi Wang1, Yukun He2 and Jun Shen3
1The 1st Department of Gastrointestinal Surgery, Renmin Hospital of Wuhan University, Hubei Province, Wuhan 430060, P.R. China
2Department of General Surgery, Zhongnan Hospital of Wuhan University, Hubei Province, Wuhan 430071, P.R. China
3Emergency Center, Zhongnan Hospital of Wuhan University, Hubei Province, Wuhan 430071, P.R. China
Correspondence to:
Jun Shen, email: [email protected]
Keywords: surgical strategy, anal fistula, network meta-analysis
Received: August 14, 2017 Accepted: September 23, 2017 Published: October 12, 2017
ABSTRACT
Objective: To determine a superior surgical treatment for anal fistula through a network meta-analysis and to provide the best direction for development in this field.
Methods: We conducted a systematic literature search of the PubMed, Embase and Cochrane Library databases and extracted data from randomized controlled trials, which compared healing time, incontinence and recurrence associated with surgical strategies for anal fistula. A network meta-analysis was conducted using ADDIS software by evaluating the 3 parameters. Cumulative probability values were utilized to rank the strategies under examination. Inconsistencies were also tested using node-splitting models.
Results: Twenty articles with 1663 patients were included. Fistulotomy plus marsupialisation had the shortest healing time (P = 0.69). Seton placement was the best procedure to avoid postoperative incontinence (P = 0.66). Fistulectomy exhibited the lowest recurrence rate (Probability P = 0.40). In general, fistulotomy plus marsupialisation and surgical ligation plus biomaterial plugging revealed superior clinical efficacy. Node-splitting model testing revealed that no significant inconsistency existed in this research.
Conclusions: Fistulotomy plus marsupialisation exhibited preliminary superior surgical utility for anal fistula. Additionally, combination of surgical treatment with biomaterials may provide better clinical efficacy. These techniques may warrant consideration for future development in this field.
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