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World Journal of Surgical Oncology
Published in: World Journal of Surgical Oncology 1/2018

Open Access 01-12-2018 | Research

Association of body mass index and outcomes following lobectomy for non-small-cell lung cancer

Authors: Cui Wang, Min Guo, Nan Zhang, Gongchao Wang

Published in: World Journal of Surgical Oncology | Issue 1/2018

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Abstract

Background

Obesity and overweight have become increasingly prevalent, but no consensus has been reached regarding the effect of body mass index (BMI) on surgical outcomes. In this study, we sought to examine the influence of BMI on perioperative outcomes in a large cohort of patients with non-small-cell lung cancer (NSCLC) who underwent lobectomy.

Methods

A retrospective study was conducted in 1198 patients who underwent lobectomy for primary NSCLC at Shandong Provincial Hospital between November 2006 and January 2017. BMI was calculated using measured height and weight on admission and categorized as obese (≥ 30 kg/m2), overweight (25 to 29.9 kg/m2), normal (18.5 to 24.9 kg/m2), or underweight (< 18.5 kg/m2). Patients’ baseline characteristics and outcomes were abstracted from medical records following institutional review board approval. Endpoints included operative mortality, perioperative complications, and length of stay (LOS). Complications were divided into four groups as respiratory, cardiovascular, other, and overall. Logistic regression models were constructed to assess the association between BMI and adverse outcomes.

Results

When compared with normal BMI, obesity and overweight did not increase the risk of complications in any category, operative mortality, or prolonged LOS. In fact, the incidence of operative mortality and respiratory complications tended to be lower in overweight patients than in normal weight patients (P = 0.047 and P = 0.041, respectively). Conversely, underweight patients experienced significantly more operative mortality, respiratory complications, and prolonged LOS (P = 0.004, P = 0.011, and P = 0.003, respectively).

Conclusions

Obesity and overweight did not confer adverse surgical outcomes. Underweight patients presented increased risk of respiratory complications, perioperative death, and prolonged LOS. Thus, overweight and obesity should not be a relative contraindication for lobectomy. Meanwhile, nurses and surgeons should focus on perioperative management of underweight patients.
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Metadata
Title
Association of body mass index and outcomes following lobectomy for non-small-cell lung cancer
Authors
Cui Wang
Min Guo
Nan Zhang
Gongchao Wang
Publication date
01-12-2018
Publisher
BioMed Central
Published in
World Journal of Surgical Oncology / Issue 1/2018
Electronic ISSN: 1477-7819
DOI
https://doi.org/10.1186/s12957-018-1394-6

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