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Critically Evaluating the Role for Postoperative Antibiotics in Patients Undergoing Urethroplasty with Buccal Mucosa Graft: A Claims Database Analysis.
Urology 2024 April 26
OBJECTIVES: To compare outcomes among patients undergoing first-time urethroplasty with buccal mucosa graft (BMG) who receive post-operative antibiotics versus those who do not.
METHODS: A retrospective cohort study was conducted using the TriNetX claims database between 2008-2022. Using CPT, ICD10, and LOINC codes, patients >18 years old undergoing primary urethroplasty with BMG who received an outpatient prescription for antibiotics between post-operative day 0-30 or did not were queried. Patients with positive pre-operative urine culture or urinary tract infection (UTI) within 30 days pre-operatively were excluded. Surgical outcomes included 5-year revision rates and revision-free survival. Safety outcomes included new UTI within 30 days, surgical site infection (SSI) within 90 days, or Clostridium difficile infection within 30 days of urethroplasty.
RESULTS: We identified 884 patients (81% antibiotic cohort, 19% non-antibiotic cohort) that met inclusion criteria. Age at time of urethroplasty, suprapubic tube presence, and pre-existing medical comorbidities were comparable between cohorts (Table 1A). There was no difference in 5-year rates and revision-free survival for endoscopic revision (11.5% vs. 9.5%, RR 1.2, 95% CI [0.7, 2.0], RFS log-rank p=0.6), re-do urethroplasty (12.9% vs. 13.7%, RR 0.9, 95% CI [0.6, 1.5], RFS log-rank p=0.7), or all-cause revision (19.8% vs. 17.7%, RR 1.1, 95% CI [0.8, 1.6], p=0.5) between groups. Post-operative rates of UTI, SSI, and Clostridium difficile infection were similar between groups.
CONCLUSIONS: In this large retrospective cohort study of patients undergoing urethroplasty with BMG, we observed no significant benefit from use of post-operative antibiotics on long-term revision rates or perioperative infectious complications.
METHODS: A retrospective cohort study was conducted using the TriNetX claims database between 2008-2022. Using CPT, ICD10, and LOINC codes, patients >18 years old undergoing primary urethroplasty with BMG who received an outpatient prescription for antibiotics between post-operative day 0-30 or did not were queried. Patients with positive pre-operative urine culture or urinary tract infection (UTI) within 30 days pre-operatively were excluded. Surgical outcomes included 5-year revision rates and revision-free survival. Safety outcomes included new UTI within 30 days, surgical site infection (SSI) within 90 days, or Clostridium difficile infection within 30 days of urethroplasty.
RESULTS: We identified 884 patients (81% antibiotic cohort, 19% non-antibiotic cohort) that met inclusion criteria. Age at time of urethroplasty, suprapubic tube presence, and pre-existing medical comorbidities were comparable between cohorts (Table 1A). There was no difference in 5-year rates and revision-free survival for endoscopic revision (11.5% vs. 9.5%, RR 1.2, 95% CI [0.7, 2.0], RFS log-rank p=0.6), re-do urethroplasty (12.9% vs. 13.7%, RR 0.9, 95% CI [0.6, 1.5], RFS log-rank p=0.7), or all-cause revision (19.8% vs. 17.7%, RR 1.1, 95% CI [0.8, 1.6], p=0.5) between groups. Post-operative rates of UTI, SSI, and Clostridium difficile infection were similar between groups.
CONCLUSIONS: In this large retrospective cohort study of patients undergoing urethroplasty with BMG, we observed no significant benefit from use of post-operative antibiotics on long-term revision rates or perioperative infectious complications.
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