Comparative study of inguinal hernia repair rates after radical prostatectomy or external beam radiotherapy

Giovanni Lughezzani, Maxine Sun, Paul Perrotte, Ahmed Alasker, Claudio Jeldres, Hendrik Isbarn, Lars Budäus, Jean Baptiste Lattouf, Luc Valiquette, Francois Bénard, Fred Saad, Markus Graefen, Francesco Montorsi, Pierre I. Karakiewicz

Research output: Contribution to journalArticlepeer-review

Abstract

Purpose: We tested the hypothesis that patients treated for localized prostate cancer with radical prostatectomy (RP) have a higher risk of requiring an inguinal hernia (IH) repair than their counterparts treated with external beam radiotherapy (EBRT). Methods and Materials: Within the Quebec Health Plan database, we identified 6,422 men treated with RP and 4,685 men treated with EBRT for localized prostate cancer between 1990 and 2000, in addition to 6,933 control patients who underwent a prostate biopsy. From among that population, we identified patients who underwent a unilateral or bilateral hernia repair after either RP or EBRT. Kaplan-Meier plots showed IH repair-free survival rates. Univariable and multivariable Cox regression models tested the predictors of IH repair after RP or EBRT. Covariates consisted of age, year of surgery, and Charlson Comorbidity Index. Results: IH repair-free survival rates at 1, 2, 5, and 10 years were 96.8, 94.3, 90.5, and 86.2% vs. 98.9, 98.0, 95.4, and 92.2%, respectively, in RP vs. EBRT patients (log-rank test, p <0.001). IH repair-free survival rates in the biopsy population were 98.3, 97.1, 94.9, and 90.2% at the same four time points. In multivariable Cox regression models, RP predisposed to a 2.3-fold higher risk of IH repair than EBRT (p <0.001). Besides therapy type, patient age (p <0.001) represented the only other independent predictor of IH repair. Conclusions: RP predisposes to a higher rate of IH repair relative to EBRT. This observation should be considered at informed consent.

Original languageEnglish
Pages (from-to)1307-1313
Number of pages7
JournalInternational Journal of Radiation Oncology Biology Physics
Volume78
Issue number5
DOIs
Publication statusPublished - Dec 1 2010

Keywords

  • External beam radiotherapy
  • Inguinal hernia
  • Inguinal hernia repair
  • Radical prostatectomy

ASJC Scopus subject areas

  • Oncology
  • Radiology Nuclear Medicine and imaging
  • Radiation
  • Cancer Research

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