| The cardiopulmonary exercise test is safe and reliable in elderly patients with chronic heart failure. | |
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MedLine Citation:
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PMID: 17667032 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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AIM: To assess safety and feasibility of cardiopulmonary exercise test (CPX) in elderly patients with chronic heart failure (CHF) and left ventricular dysfunction. METHODS AND RESULTS: We analysed 395 cardiopulmonary exercise tests (CPXs) performed in 227 clinically stable patients with CHF [mean age 76 years, males 70%, mean New York Heart Association (NYHA) class 2.2 +/- 0.5] and impaired left ventricular function (mean ejection fraction 43 +/- 12%). Ninety-eight out of 395 CPXs (25%) were performed in patients older than 80 years. A standard bicycle exercise ramp protocol was used, with increments of 10 W/min. An expiratory exchange ratio (RER) >or= 1.05 at the peak of CPX was considered as the index of maximal exercise. Average workload was 65 +/- 23 W. No adverse reactions were observed, although one test was stopped for non-sustained ventricular tachycardia. The main reasons for stopping were exhaustion (50%), dyspnoea (30%), maximal predicted heart rate (17%), orthopaedic problems (2.5%) and significant ST segment depression (0.5%). In the overall cohort, 80% of patients achieved an RER >or= 1.05 and, in 56% of them, the RER was >or= 1.15. The anaerobic threshold (AT) was detectable in 80% of CPXs, and mean oxygen consumption (VO2) at AT was 9 +/- 6 ml/kg per min, whereas mean peak VO2 was 11 +/- 3 ml/kg per min. In the cohort of patients aged > 80 years, 71% reached an RER >or= 1.05 and 47% reached an RER >or= 1.15. In these older patients, AT was detectable in 68% of CPXs performed, and the mean peak VO2 was 10 +/- 3 ml/kg per min. CONCLUSIONS: In elderly patients with CHF, the CPX is safe, feasible and able to provide basic information for individual risk assessment. These findings potentially extend the indications of CPX, which is currently applied to selected middle-aged patients with CHF, to the elderly population. |
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Authors:
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Angela Beatrice Scardovi; Claudio Coletta; Renata De Maria; Silvia Perna; Nadia Aspromonte; Marina Feola; Gianluca Rosso; Manuela Greggi; Vincenzo Ceci |
Publication Detail:
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Type: Evaluation Studies; Journal Article |
Journal Detail:
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Title: Journal of cardiovascular medicine (Hagerstown, Md.) Volume: 8 ISSN: 1558-2027 ISO Abbreviation: J Cardiovasc Med (Hagerstown) Publication Date: 2007 Aug |
Date Detail:
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Created Date: 2007-08-01 Completed Date: 2007-09-21 Revised Date: 2009-05-28 |
Medline Journal Info:
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Nlm Unique ID: 101259752 Medline TA: J Cardiovasc Med (Hagerstown) Country: United States |
Other Details:
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Languages: eng Pagination: 608-12 Citation Subset: IM |
Affiliation:
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Cardiology, S. Spirito Hospital, Rome, Italy. ab.scardovi@libero.it |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Aged Aged, 80 and over Anaerobic Threshold Chronic Disease Exercise Test* / adverse effects Feasibility Studies Female Heart Failure / diagnosis*, physiopathology Humans Male Odds Ratio Oxygen Consumption Prognosis Reproducibility of Results Respiratory Function Tests* Respiratory Mechanics Risk Assessment Severity of Illness Index Stroke Volume Ventricular Function, Left* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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