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Artículo Tomo 71, Número. 6, Jul/Ago 2018

Archivos Españoles de Urología

Obesity and radical prostatectomy: The enigma continues.

Authors: Juan Guillermo Cataño, Anamaria Ramos-Hernández, Alejandra Bravo-Balado, Ángela Marcela Mariño-Álvarez, Juan Ignacio Caicedo, Carlos Gustavo Trujillo y Mauricio Plata.

Arch. Esp. Urol. 2018; 71 (6): 517-522

Vol. 71, Number. 6, Jul/Aug 2018

OBJECTIVE: To determine the association between surgical and postoperative outcomes as well as cancer follow-up of patients who underwent radical prostatectomy according to body mass index (BMI).

METHODS: An analytical observational study with retrospective data collection was conducted. We reviewed the medical records of all the patients who underwent radical prostatectomy between the years 2012-2014. The analysis of the data included a bivariate model to study the associations between BMI and the surgical procedure, its complications, oncologic outcomes and cancer follow-up. Then, we used multivariate logistic regression analysis to determine if there was an independent association between oncologic outcomes and BMI; the model was adjusted by age, hypertension and diabetes mellitus.

RESULTS: 272 patients underwent radical prostatectomy: 98 (36.0%) had normal BMI, 142 (52.2%) were overweight and 32 (11.8%) were obese. The median age was 61 interquartile range (IQR=56-66) years old. There were no statistically significant differences in the preoperative and postoperative outcomes according to BMI. The obese patients had longer operative time (176 minutes, IQR=165.0-195.5); nonetheless, the difference was not statistically significant (p=0.18). There were no complications during the procedure (rectal, vascular or obturator nerve injury). The multivariate analysis showed that age, hypertension and diabetes mellitus were not effect modifiers.

CONCLUSIONS: Our study suggests that there are no differences between surgical and postoperative outcomes according to BMI. This study represents a starting point for future research in our population to determine the impact of the BMI on prostate cancer and its management.

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