Transanal hemorrhoidal dearterialization (THD) versus stapled hemorrhoidopexy (SH) in treatment of internal hemorrhoids: a systematic review and meta-analysis of randomized clinical trials.

Background: Although conventional hemorrhoidectomy proved effective in treatment of hemorrhoidal disease, postoperative pain remains a vexing problem. Alternatives to conventional hemorrhoidectomy as transanal hemorrhoidal dearterialization (THD) and stapled hemorrhoidopexy (SH) were described. The present meta-analysis aimed to review the randomized trials that compared THD and SH to determine which technique is superior in terms of recurrence of hemorrhoids, complications, and postoperative pain.
Methods: Electronic databases were searched for randomized trials that compared THD and SH for internal hemorrhoids. The PRISMA guidelines were followed when reporting this meta-analysis. The primary endpoint of the analysis was persistence or recurrence of hemorrhoidal disease. Secondary endpoints were postoperative pain, complications, readmission, return to work, and patients' satisfaction.
Results: Six randomized trials including 554 patients (THD = 280; SH = 274) were included. The mean postoperative pain score of THD was significantly lower than SH (2.9 ± 1.5 versus 3.3 ± 1.6). 13.2% of patients experienced persistent or recurrent hemorrhoids after THD versus 6.9% after SH (OR = 1.93, 95%CI = 1.07-3.51, p = 0.029). Complications were recorded in 17.1% of patients who underwent THD and 23.3% of patients who underwent SH (OR = 0.68, 95%CI 0.43-1.05, p = 0.08). The average duration to return to work after THD was 7.3 ± 5.2 versus 7.7 ± 4.8 days after SH (p = 0.34). Grade IV hemorrhoids was significantly associated with persistence or recurrence of hemorrhoidal disease after both procedures.
Conclusion: THD had significantly higher persistence/recurrence rate compared to SH whereas complication and readmission rates, hospital stay, return to work, and patients' satisfaction were similar in both groups.