Comparison of surgical procedures implemented in recent years for patients with grade III and IV hemorrhoids: a network meta-analysis
This study aimed to investigate the complications and recurrence rates of the different surgical procedures implemented in recent years for the treatment of grade III and IV hemorrhoids using a network meta-analysis approach.
A systematic literature search was conducted for randomized clinical trials (RCTs) published from January 2013 to August 2018, via PubMed, Embase, the Cochrane Library, and Web of Science. Data related to anal stenosis, fecal incontinence, hemorrhoids thrombosis, and recurrence rates were extracted from the included studies, which were selected based on associations with surgical procedures for grade III and IV hemorrhoids. A network meta-analysis was conducted by using the automated software Aggregate Data Drug Information System (ADDIS) 1.16.8 to evaluate and rank the safety and efficacy of the different surgical methods.
Twenty-one studies with 2799 participants involving nine surgical procedures for grade III and IV hemorrhoids were ultimately analyzed. Transanal hemorrhoidal dearterialization (THD) and stapled hemorrhoidectomy (SH) exhibited fewer anal stenosis than open hemorrhoidectomy (OH) and Harmonic scalpel (Harmonic). SH presented the highest fecal incontinence rates. OH and Harmonic presented lower hemorrhoids thrombosis than SH and THD. Importantly, SH and THD exhibited the highest recurrence rates, when compared with the other hemorrhoidectomy surgical procedures.
In summary, THD and SH were found to be associated with more complications and higher recurrence rates. In addition, the use of OH treatments resulted in less hemorrhoids thrombosis rate but higher recurrence rate. The use of Harmonic resulted in higher anal stenosis rate but lower recurrence rate.
KeywordsHemorrhoids Surgical procedures Network meta-analysis Randomized controlled trial
All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
Compliance with ethical standards
Conflict of interest
The authors declare that they have no conflicts of interest.
Statement of human rights
For this type of study, formal consent is not required.
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