Obesity Surgery

, Volume 20, Issue 5, pp 589–594

The Impact of Various Anthropometric Measurements of Obesity on Pulmonary Function in Candidates for Surgery

  • Yu-Feng Wei
  • Huey-Dong Wu
  • Chi-Yang Chang
  • Chih-Kun Huang
  • Chi-Ming Tai
  • Chao-Ming Hung
  • Wei-Kung Tseng
  • Chau-Chung Wu
Clinical Research

DOI: 10.1007/s11695-009-9961-0

Cite this article as:
Wei, YF., Wu, HD., Chang, CY. et al. OBES SURG (2010) 20: 589. doi:10.1007/s11695-009-9961-0

Abstract

Background

Obesity has proven to be associated with respiratory symptoms and impaired pulmonary function, which could increase the incidence of postoperative complications after bariatric surgery. However, the component of obesity that has the most influence on pulmonary function has not been identified, especially in Asian-Pacific populations.

Methods

This cross-sectional study enrolled obese Chinese patients ≥18 years of age with a body mass index (BMI) >32 kg/m2, who were being evaluated for bariatric surgery. All patients performed pulmonary function test, and the results were analyzed according to various anthropometric measurements. Multiple-regression analyses were also conducted and adjusted for age, sex, and smoking history to determine the factors that impaired the pulmonary function of the obese patients.

Results

A total of 150 consecutive patients were enrolled from July 2007 to August 2008. We found that body weight, BMI, waist circumference (WC), hip circumference, and waist-to-height ratio but not waist-to-hip ratio had a significant correlation with decreased forced vital capacity (FVC), forced expiratory volume in the first second (FEV1), total lung capacity (TLC), vital capacity (VC), and increased diffusing capacity of the lung for carbon monoxide to alveolar gas volume. After multiple linear regression analysis, only WC was associated with reductions in FEV1, FVC, TLC, and VC.

Conclusions

Obesity is associated with a restrictive pattern of impaired pulmonary function in various anthropometric parameters measured in obese Chinese adults in Taiwan. Among these parameters, WC had the greatest impact on pulmonary function, which could also implicate the rate of postoperative complication and the need of more intensive care after bariatric surgery.

Keywords

Body mass index Obesity Pulmonary function test Waist circumference 

Abbreviations

ATS

American Thoracic Society

BMI

Body mass index

BW

Body weight

DLCO

Diffusing capacity of the lung for carbon monoxide

DLCO/VA

DLCO to alveolar gas volume

ERV

Expiratory reserve volume

FEV1

Forced expiratory volume in the first second

FVC

Forced vital capacity

HC

Hip circumference

IC

Inspiratory capacity

PFT

Pulmonary function test

RV

Residual volume

TLC

Total lung capacity

VC

Vital capacity

WC

Waist circumference

WHR

Waist-to-hip ratio

WHtR

Waist-to-height ratio

Copyright information

© Springer Science + Business Media, LLC 2009

Authors and Affiliations

  • Yu-Feng Wei
    • 1
  • Huey-Dong Wu
    • 3
  • Chi-Yang Chang
    • 1
  • Chih-Kun Huang
    • 2
  • Chi-Ming Tai
    • 1
  • Chao-Ming Hung
    • 2
  • Wei-Kung Tseng
    • 1
  • Chau-Chung Wu
    • 3
  1. 1.Department of Internal Medicine, E-Da HospitalI-Shou UniversityKaohsiung CountyTaiwan
  2. 2.Department of Surgery, E-Da HospitalI-Shou UniversityKaohsiung CountyTaiwan
  3. 3.Department of Internal MedicineNational Taiwan University HospitalTaipeiTaiwan

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