Utility of botulinum toxin injection for post-operative pain management after conventional hemorrhoidectomy: a systematic review and meta-analysis of clinical trials.

BACKGROUND: Botulinum Toxin (BTX) has been found to have anti-spasm and analgesic effects. The utility of BTX after conventional hemorrhoidectomy remains unclear. Thus, a systematic review and meta-analysis are required to find out its utility after conventional hemorrhoidectomy. METHODS: Using specific keywords, we comprehensively go through the potential articles on PubMed, ClinicalTrials.gov, and Europe PMC sources until March 27th, 2022. All published studies on botulinum toxin anal sphincter injection after conventional hemorrhoidectomy were collected. We were using Review Manager 5.4 software to conduct statistical analysis. RESULTS: Five clinical trial studies with a total of 260 patients undergoing hemorrhoidectomy were included in the analysis Our pooled analysis revealed that BTX injection after hemorrhoidectomy was associated with lower VAS at 24 h post-operative [Mean Difference -1.35 (95% CI -1.90, -0.80), p < 0.00001, I2 = 0%] and shorter time to return work [Mean Difference -8.94 days (95% CI -12.57, -5.30), p < 0.00001, I2 = 0%]. However, BTX injection did not differ significantly from placebo in terms of time to first defecation (p = 0.22), fecal incontinence (p = 0.91) and urinary retention incidence (p = 0.18). CONCLUSION: BTX sphincter injection may offer some benefit after conventional hemorrhoidectomy in reducing pain from the first day after the procedure and promoting wound healing without complication. Further randomized clinical trials are still needed to confirm the results of our study.

Laser hemorrhoidoplasty for hemorrhoidal disease: a systematic review and meta-analysis.

Laser hemorrhoidoplasty (LHP) is known as a new minimally invasive and painless procedure for symptomatic hemorrhoids. However, Milligan-Morgan (MM) may offer the best result of long-term cure rates. In this study, we aim to compare the efficacy between LHP and MM for hemorrhoidal disease treatment. Using specific keywords, we comprehensively go through the potential articles on PubMed, Europe PMC, and Google Scholar sources until April 19, 2022. All published studies on LHP and MM hemorrhoidectomy were collected. Statistical analysis was done by using Review Manager 5.4 software. Twelve studies with a total of 1756 patients with hemorrhoid grades II-IV were included for the analysis. Our pooled analysis revealed that LHP was associated with shorter operative time (p < 0.00001), shorter length of hospital stay (p = 0.0005), lower risk of urinary retention (p = 0.005) and anal stenosis (p = 0.0004), and lower VAS 24-h post-operative (p < 0.00001) when compared with MM. However, LHP and MM did not differ in terms of recurrence rate (p = 0.70). LHP was superior to MM procedure in terms of shortening the recovery time and minimizing post-operative complications for patients with hemorrhoidal disease.