ArticleBMJ surgery, interventions, & health technologies2024
PROJECT PREVENT: a randomized controlled trial of preoperative vaginal metronidazole to decrease patient issues and infections after hysterectomy.
Article in BMJ surgery, interventions, & health technologies, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04478617 (PROJECT PREVENT), which is not on this map. Not yet cited in PubMed.
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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.
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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.
PROJECT PREVENT: Metronidazole Antibiotic Per Vagina Before Hysterectomy: Is Additional Antibiotic Prophylaxis Beneficial?
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Authors and funding
8 authors at 3 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
Objectives: To evaluate if vaginal metronidazole for 5 days before hysterectomy decreases postoperative infections and patient issues. Design: This randomized trial compared vaginal metronidazole for 5 days before a scheduled hysterectomy to no intervention. Sample size calculation was based on a 20% difference in issues and infection (30% incidence and 10% in the intervention arm) with 80% power and an alpha error of 0.05 and indicated 62 subjects needed in each arm. Setting: Outpatient gynecology clinics at a single academic institution. Participants: 154 subjects were screened for eligibility between July 2020 and September 2022. 133 underwent hysterectomy including 68 subjects (51.1%) randomized to the metronidazole and 65 (48.9%) controls. Overall, the population was racially and ethnically diverse. There was no significant difference in characteristics between the two groups. Interventions: Vaginal metronidazole for 5 days before hysterectomy. Main outcome measures: Postoperative patient issues and documented postoperative infections at 4-8 weeks after surgery. Results: There was no difference in the composite rate of patient-reported issues and/or documented postoperative infection (53/133 (39.8%) with no difference between groups (29/68 (42.6%) vs 24/65 (36.9%), p=0.50). There was no difference in patient-reported issues which was 51/133 (38.3%) with no difference between groups (28/68 (41.2%) vs 23/65 (33.8%), p=0.49) or in documented infections with a rate of 25/133 (18.8%) with no significant difference between groups (15/68 (22.0%) vs 10/65 (15.4%), p=0.33). In the intervention arm, the compliance rate was 73.5% for all 5 days of vaginal metronidazole, and a per-protocol analysis was performed which resulted in no significant difference between groups. Conclusions: There is insufficient evidence to suggest a significant benefit of preoperative vaginal metronidazole to prevent surgical site infections and postoperative patient issues in patients undergoing hysterectomy. Trial registration number: ClinicalTrials.gov, NCT04478617.
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