The impact of body mass index on surgical outcomes of robotic partial nephrectomy

Wahib E. Isac, Riccardo Autorino, Shahab P. Hillyer, Adrian V. Hernández, Robert J. Stein, Jihad H. Kaouk

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

35 Citas (Scopus)


OBJECTIVE • To assess the impact of body mass index (BMI) on the surgical outcomes of robotic partial nephrectomy (RPN). PATIENTS AND METHODS • Medical charts of 250 consecutive patients who underwent RPN at our institution between 2006 and 2010 were reviewed. • Patients were categorized based on their BMI into four groups per international classification of obesity into: normal (BMI < 25 kg/m 2 ), overweight (25-29.9), obese (30-39.9) and morbidly obese ( ≥ 40). • Preoperative characteristics as well as perioperative and postoperative outcomes were analysed and compared between the groups. RESULTS • Of the 250 patients, 43 (17.2% of the entire cohort) were non-obese, 104 (41.6%) were overweight, 75 (30%) were obese, and 28 (11.2%) were morbidly obese. • Groups were similar in terms of age, gender, history of previous surgery and nephrometry score ( P =0.5). • Patients with higher BMI had a higher American Society of Anesthesiologists (ASA) score (median 3 for obese and morbidly obese groups vs 2 for non-obese groups; P =0.002) and tumour size (median 3.6, 2.9, 2.5 and 2.3 cm in those who were morbidly obese, obese, overweight and with normal BMI, respectively; P =0.005). • Patients within the morbidly obese group had a higher estimated blood loss (median 250 mL) than other groups (median: 200, 200, 150 mL, respectively) ( P =0.03). • No significant difference was detected between the groups in terms of operation duration, warm ischaemia time, transfusion rate and postoperative complications. CONCLUSION • Robotic partial nephrectomy represents an effective treatment modality for renal tumours providing equivalent surgical outcomes even for patients with BMI up to 60 kg/m 2 .

Idioma originalInglés
Páginas (desde-hasta)E997-E1002
PublicaciónBJU International
N.º11 C
EstadoPublicada - dic 2012
Publicado de forma externa


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