| Association of ST segment depression >5 min after exercise testing with severity of coronary artery disease. | |
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MedLine Citation:
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PMID: 20419972 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: To determine the association of prolonged ST segment depression after an exercise test with severity of coronary artery disease. METHODS: A cross sectional study of 100 consecutive patients referred to the cardiology laboratory for stress myocardial perfusion imaging (MPI) conducted between April-August 2008. All selected patients were monitored until their ST segment depression was recovered to baseline. ST segment recovery time was categorized into less and more than 5 minutes. Subsequent gated SPECT-MPI was performed and stratified according to severity of perfusion defect. Association was determined between post exercise ST segment depression recovery time (<5 minutes and >5 minutes) and severity of perfusion defect on MPI. RESULTS: The mean age of the patients was 57.12 +/- 9.0 years. The results showed statistically insignificant association (p > 0.05) between ST segment recovery time of <5 minutes and >5 minutes with low, intermediate or high risk MPI. CONCLUSION: Our findings suggest that the commonly used cut-off levels used in literature for prolonged, post exercise ST segment depression (>5 minutes into recovery phase) does not correlate with severity of ischaemia based on MPI results. |
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Authors:
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Ayaz Hussain Shaikh; Bashir Hanif; Adeel M Siddiqui; Hunaina Shahab; Hammad Ali Qazi; Iqbal Mujtaba |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: JPMA. The Journal of the Pakistan Medical Association Volume: 60 ISSN: 0030-9982 ISO Abbreviation: J Pak Med Assoc Publication Date: 2010 Apr |
Date Detail:
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Created Date: 2010-04-27 Completed Date: 2010-06-10 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7501162 Medline TA: J Pak Med Assoc Country: Pakistan |
Other Details:
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Languages: eng Pagination: 288-90 Citation Subset: IM |
Affiliation:
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Tabba Heart Institute Karachi. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Chi-Square Distribution Coronary Disease / physiopathology*, radionuclide imaging Cross-Sectional Studies Electrocardiography Exercise Test* Female Humans Male Middle Aged Severity of Illness Index Time Factors Tomography, Emission-Computed, Single-Photon |
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