| Usefulness of seismocardiography for the diagnosis of ischemia in patients with coronary artery disease. | |
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MedLine Citation:
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PMID: 16029378 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND: Seismocardiography (SCG) is a useful method for the detection of exercise-induced changes in cardiac muscle contractility which may occur during myocardial ischemia. The aim of this study was to compare the diagnostic accuracy of SCG with electrocardiographic exercise test (ETT) for diagnosis of ischemia in patients with angiographically proved coronary artery disease (CAD). METHODS: Seventy-seven male patients with CAD without myocardial infarction (MI), mean age 51+/-9 years, were subjected to SCG and ETT. A gender-matched control group consisted of 30 healthy volunteers aged 34+/-7 years. SCG was done simultaneously with resting supine 12-lead electrocardiography before and immediately after a symptom-limited ETT. The sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV) of SCG were compared with ETT. Moreover, the diagnostic accuracy of both the methods was compared, with coronary angiography being the reference for the analysis. RESULTS: SCG was more sensitive (61.1% vs 44.2%, P<0.05) and accurate (70% vs 61%, P<0.05) method for detecting ischemia caused by coronary stenosis>or=50%, at least in one coronary artery compared to the ETT. However, ETT had better specificity than SCG (82.4% vs 76%, P<0.05). The PPV and NPV of SCG were significantly better than those obtained with ETT (77.9% vs 76%, P<0.05 and 63.4% vs 53.8%, P<0.05, respectively). Moreover, the concordant results of SCG and ETT improved the diagnostic accuracy of both methods. CONCLUSIONS: SCG appeared to be more sensitive for detecting ischemia caused by more than>or=50% stenosis of the main coronary artery compared to an electrocardiographic stress test. SCG was a useful ETT adjunct for selecting patients requiring coronary angiography. |
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Authors:
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Iwona Korzeniowska-Kubacka; Maria Bilińska; Ryszard Piotrowicz |
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Publication Detail:
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Type: Comparative Study; Journal Article |
Journal Detail:
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Title: Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc Volume: 10 ISSN: 1082-720X ISO Abbreviation: Ann Noninvasive Electrocardiol Publication Date: 2005 Jul |
Date Detail:
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Created Date: 2005-07-20 Completed Date: 2005-11-10 Revised Date: 2008-03-10 |
Medline Journal Info:
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Nlm Unique ID: 9607443 Medline TA: Ann Noninvasive Electrocardiol Country: United States |
Other Details:
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Languages: eng Pagination: 281-7 Citation Subset: IM |
Affiliation:
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Department of Cardiac Rehabilitation and Noninvasive Electrocardiology, National Institute of Cardiology, Warsaw, Poland. drkubacka@wp.pl |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Case-Control Studies Coronary Angiography Coronary Artery Disease / complications*, physiopathology Electrocardiography Exercise Test Heart Function Tests / methods* Humans Male Middle Aged Myocardial Contraction Myocardial Ischemia / diagnosis*, etiology*, physiopathology Predictive Value of Tests ROC Curve Sensitivity and Specificity |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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