Volume 133, Issue 6 , Pages 1434-1438, June 2007
Lung-volume reduction surgery for pulmonary emphysema: Improvement in body mass index, airflow obstruction, dyspnea, and exercise capacity index after 1 year
Objectives
We hypothesized that lung-volume reduction surgery for pulmonary emphysema would improve body mass index, airflow obstruction, dyspnea, and exercise capacity (BODE) index, a multidimensional predictor of survival in chronic obstructive pulmonary disease. We also aimed to identify preoperative predictors of improvement in the BODE index.
Methods
In a prospective cohort study of patients undergoing lung-volume reduction surgery at our center, with the methodology of the National Emphysema Treatment Trial, we compared clinical characteristics before and 1 year after surgery with the Wilcoxon signed rank test. Changes in the BODE index were correlated with preoperative variables with the Spearman correlation coefficient.
Results
Twenty-three patients with predominantly upper-lobe pulmonary emphysema underwent lung-volume reduction surgery (14 by video-assisted thoracoscopic surgery, 9 by median sternotomy). There were no postoperative or follow-up deaths. The BODE index improved from a median of 5 (interquartile range 4-5) before surgery to 3 (interquartile range 2-4) 1 year after surgery (P < .0001). Improvements were seen in the lung function and dyspnea components of the BODE index. Lower preoperative 6-minute walk distance and lower postwalk Borg fatigue scores were each associated with greater improvement in the BODE index after 1 year.
Conclusion
Lung-volume reduction surgery for pulmonary emphysema improved the BODE index in patients with predominantly upper-lobe disease. Lower preoperative 6-minute walk distance correlated with greater improvement in the BODE index.
CTSNet classification: 11
Abbreviations and Acronyms: BODE, body mass index, airflow obstruction, dyspnea, and exercise capacity, COPD, chronic obstructive pulmonary disease, FEV1, forced expiratory volume in 1 second, IQR, interquartile range, LVRS, lung-volume reduction surgery, NETT, National Emphysema Treatment Trial
Supported by National Institutes of Health grant HL072739.
PII: S0022-5223(07)00292-9
doi:10.1016/j.jtcvs.2006.12.062
© 2007 The American Association for Thoracic Surgery. Published by Elsevier Inc. All rights reserved.
Refers to article:
- Lung-volume reduction surgery: A vanishing operation?
Volume 133, Issue 6 , Pages 1434-1438, June 2007
