Trial reportScientific reports2026
Effect of intrasphincteric botulinum toxin on postoperative urinary retention following stapled hemorrhoidopexy: a randomized, double-blind, placebo-controlled trial.
Trial report in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Postoperative urinary retention (POUR) is a frequent and clinically significant complication following stapled hemorrhoidopexy, often resulting in catheterization, prolonged hospitalization, and patient discomfort. Strategies to reduce POUR remain limited. Intrasphincteric botulinum toxin (BTX) injection may decrease internal anal sphincter tone and indirectly reduce urinary dysfunction. To evaluate the effect of intrasphincteric BTX type A injection on the incidence of POUR following stapled hemorrhoidopexy in a secondary analysis of a prospective randomized controlled trial originally designed to assess postoperative pain outcomes. In this double-blind, placebo-controlled trial, 68 adult patients with grade III-IV hemorrhoids undergoing stapled hemorrhoidopexy at two tertiary hospitals were randomized (1:1) to receive either 50 units of BTX A or placebo injected into the internal anal sphincter intraoperatively. The primary outcome was POUR, defined as failure to void within six hours postoperatively with a bladder volume > 400 mL on ultrasound requiring catheterization. Secondary outcomes included postoperative pain, gas incontinence, bleeding, and anal stenosis. POUR occurred in 30 patients (44.1%). The incidence was significantly lower in the BTX group compared with placebo (20.6% vs. 67.6%, P < 0.001). In multivariable logistic regression adjusted for age and sex, placebo treatment was independently associated with higher odds of POUR (adjusted OR 8.87, 95% CI 2.82-27.95; P < 0.001). No significant differences were observed in postoperative bleeding or gas incontinence. Intrasphincteric BTX injection significantly reduces postoperative urinary retention following stapled hemorrhoidopexy and may represent an effective perioperative strategy to improve surgical.Registration: IRCT20130826014483N12; Registered 25 June 2025 (Retrospectively registered).
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.