Study population and sample size determination
hemorrhoids
HEMORRHOIDS
Fifty-eight patients with uncomplicated 3rd or 4th degree hemorrhoids were randomized from 1st October 2021 to 2nd June 2022 to undergo OH either under local anesthesia (group A) or the saddle block (group B); (29 patients per group). Detailed methodology including patient selection, sample size determination and analyses have been reported in previous studies [