| Effects of severity of long-standing congestive heart failure on pulmonary function. | |
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MedLine Citation:
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PMID: 10197224 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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To investigate the effects of severity of long-standing congestive heart failure (CHF) on pulmonary function, we studied 53 (47 men) consecutive patients, all heart transplant candidates. Their mean (+/- SD) age and ejection fraction were 47 +/- 12 years and 23 +/- 7%, respectively. All patients underwent spirometry, lung volume, diffusion capacity (DLCO), maximum inspiratory (PImax) and expiratory pressure (PEmax) measurement. Maximum cardiopulmonary exercise test on a treadmill was also performed to determine maximum oxygen consumption (VO2max). On the basis of VO2max, the patients were then divided into those with a VO2max > 14 ml min-1 kg-1 (group 1, n = 30) and those with a VO2max < or = 14 ml min-1 kg-1 (group 2, n = 23). In comparison with group 1, group 2 patients had lower FEV1/FVC (70 +/- 8% vs 75 +/- 7%, P = 0.008), lower FEF25-75 (46 +/- 21 vs 70 +/- 26%pred, P < 0.001), lower TLC (76 +/- 15 vs 85 +/- 13%pred, P = 0.02) and lower PImax (68 +/- 20 vs 87 +/- 22 cmH2O, P = 0.003), but comparable DLCO (84 +/- 15 vs 88 +/- 20%pred, P = N.S.), and PEmax (99 +/- 25 vs 96 +/- 22 cmH2O, P = N.S.). In conclusion, our data suggest that respiratory abnormalities, such as restrictive defects, airway obstruction, and inspiratory muscle weakness, are more pronounced in patients with severe CHF than in those with mild-to-moderate disease. Further studies are required to investigate the extent to which these abnormalities contribute to dyspnoea during daily activities in patients with heart failure. |
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Authors:
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I Dimopoulou; M Daganou; O K Tsintzas; G E Tzelepis |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Respiratory medicine Volume: 92 ISSN: 0954-6111 ISO Abbreviation: Respir Med Publication Date: 1998 Dec |
Date Detail:
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Created Date: 1999-04-30 Completed Date: 1999-04-30 Revised Date: 2007-11-15 |
Medline Journal Info:
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Nlm Unique ID: 8908438 Medline TA: Respir Med Country: ENGLAND |
Other Details:
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Languages: eng Pagination: 1321-5 Citation Subset: IM |
Affiliation:
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Pulmonary Function Laboratory, Onassis Cardiac Surgery Center, Athens, Greece. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Adult Aged Chronic Disease Female Heart Failure / metabolism, physiopathology* Humans Lung / physiopathology* Male Middle Aged Oxygen Consumption Respiratory Function Tests Time Factors |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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