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Persistent benefit from lung volume reduction surgery in patients with homogeneous emphysema

Weder, Walter and Tutic, Michaela and Lardinois, Didier and Jungraithmayr, Wolfgang and Hillinger, Sven and Russi, Erich W. and Bloch, Konrad E.. (2009) Persistent benefit from lung volume reduction surgery in patients with homogeneous emphysema. The annals of thoracic surgery, Vol. 87. pp. 229-236.

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Official URL: http://edoc.unibas.ch/dok/A6006774

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Abstract

BACKGROUND: The purpose of this study was to evaluate whether favorable short-term results achieved by lung volume reduction surgery in selected patients with homogeneous emphysema would persist for longer periods. Their symptoms, lung function, and survival for several years were analyzed in comparison to patients with heterogeneous emphysema. METHODS: Two hundred fifty consecutive patients (105 women), mean (+/- standard deviation) age 64 +/- 8.4 years, with advanced emphysema underwent bilateral thoracoscopic lung volume reduction surgery. Forced expiratory volume in 1 second was 28% +/- 8% of predicted, 6-minute walking distance was 245 +/- 118 m, and Medical Research Council dyspnea score was 3.5 +/- 0.7. In 138 patients (55%) computed tomography revealed homogeneous emphysema (including 82 intermediate type) distribution and in 112 patients (45%) heterogeneous emphysema. Baseline characteristics were otherwise similar in the two groups that were prospectively observed for several years. RESULTS: Thirty-day mortality was 2.4%. Both groups revealed significant improvements 3 months after lung volume reduction surgery: in homogeneous emphysema, predicted forced expiratory volume in 1 second was 38% +/- 14% (35% improvement), 6-minute walk distance was 324 +/- 87 m, and dyspnea score was 1.8 +/- 0.9 (p > 0.05 all outcomes). Corresponding results in heterogeneous emphysema were 44% +/- 15% (61% improvement), 382 +/- 95 m, and 1.3 +/- 0.9 points (p > 0.05 versus baseline; not significant versus homogeneous). Median time until predicted forced expiratory volume in 1 second and 6-minute walk distance had returned to baseline was 36 months in both groups. One-year survival was similar in both groups. At 5 years, median survival without lung transplantation was 64% in the homogeneous and 73% in the heterogeneous group (Cox proportional hazard, 0.81; 95% confidence interval, 0.66 to 0.98; p = 0.03). CONCLUSIONS: In selected patients with homogeneous pulmonar emphysema, lung volume reduction surgery can be successfully performed with low perioperative mortality. Significant improvements in dyspnea, lung function, and exercise capacity are maintained for several years.
Faculties and Departments:03 Faculty of Medicine > Bereich Operative Fächer (Klinik) > Innere Organe > Thoraxchirurgie (Lardinois)
03 Faculty of Medicine > Departement Klinische Forschung > Bereich Operative Fächer (Klinik) > Innere Organe > Thoraxchirurgie (Lardinois)
UniBasel Contributors:Lardinois, Didier
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:Little Brown
ISSN:0003-4975
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:26 Apr 2013 07:02
Deposited On:26 Apr 2013 06:53

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