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Does body mass index impact the outcomes of tubeless percutaneous nephrolithotomy?
Author(s) -
Kuntz Nicholas J.,
Neisius Andreas,
Astroza Gastón M.,
Tsivian Matvey,
Iqbal Muhammad W.,
Youssef Ramy,
Ferrandino Michael N.,
Preminger Glenn M.,
Lipkin Michael E.
Publication year - 2014
Publication title -
bju international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.773
H-Index - 148
eISSN - 1464-410X
pISSN - 1464-4096
DOI - 10.1111/bju.12538
Subject(s) - medicine , percutaneous nephrolithotomy , body mass index , complication , surgery , overweight , logistic regression , univariate analysis , population , percutaneous , multivariate analysis , environmental health
Objective To evaluate whether body mass index ( BMI ) has an impact on the outcomes of tubeless percutaneous nephrolithotomy ( PCNL ).Patients and Methods We retrospectively reviewed patients who underwent tubeless PCNL at our institution from 2006 to 2011. Specifically, stone‐free rates, complications, and hospital length of stay ( LOS ) were assessed. Patients were divided into four groups based on BMI : <25, 25–29.9, 30–34.9 and ≥35 kg/m 2 . Baseline characteristics and outcomes were compared between BMI groups. Multivariable logistic regressions were used to evaluate the independent contribution of BMI as a predictor of outcomes.Results We identified 268 patients who fulfilled study requirements. The overall stone‐free and complication rates were 52.5% and 19.0%, respectively. Minor and severe complication comprised 10.4% and 8.6%, respectively. Univariate and multivariable analyses showed no association between BMI and stone‐free or complication rates. However, patients with a normal BMI had significantly higher transfusion rates ( P = 0.005), and were significantly more likely to have a prolonged LOS (≥2 days), when compared with an overweight BMI ( P = 0.032)ConclusionsBMI did not impact the stone‐free, or complication rates of tubeless PCNL . Normal BMI was found to be a risk factor for prolonged LOS , which may be due to an increase in clinically significant bleeding in this patient population. Tubeless PCNL appears to be a safe and effective procedure for the treatment of complex renal calculi, independent of BMI .