| Correlation of cardiac troponin I levels (10 folds upper limit of normal) and extent of coronary artery disease in non-ST elevation myocardial infarction. | |
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MedLine Citation:
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PMID: 20527635 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: To determine the correlation of cardiac troponin I (cTnI) 10 folds upper limit of normal (ULN) and extent of coronary artery disease (CAD) in Non-ST-elevation myocardial infarction (NSTEMI). METHODS: A cross-sectional study was conducted on 230 consecutive NSTEMI patients admitted in Tabba Heart Institute, Karachi between April to December 2008. cTnI was measured using MEIA method. All patients underwent coronary angiography in the index hospitalization. Stenosis > or = 70% in any of the three major epicardial vessels was considered significant CAD. Extent of CAD was defined as significant single, two or three vessel CAD. Chi-square test was applied to test the association between cTnI levels and CAD extent. RESULTS: Out of 230 patients, in 111 patients with cTnI levels < or = 10 folds upper limit of normal (ULN), 25 (22.52%) had single vessel, 40 (36%) had two vessel and 34 (30.6%) had three vessel significant CAD, whereas in 119 patients with cTnI levels > 10 folds ULN, 23 (19.3%) had single vessel, 37 (31.1%) had two vessel and 55 (46.2%) had three vessel significant CAD. The results suggest that there was an insignificant association between the cTnI levels and single vessel, two vessel and the overall CAD extent (p = 0.35, p = 0.21 and p= 0.13 respectively), however there was a statistically significant association between the cTnI levels and three vessel CAD (p < 0.04). CONCLUSION: Higher cTnI levels are associated with an increased proportion of severe three vessel CAD involvement. Prompt identification and referral of this patient subset to early revascularization strategies would improve clinical outcomes. |
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Authors:
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Faisal Qadir; Salman Farooq; Moinuddin Khan; Bashir Hanif; Muhammad Shakir Lakhani |
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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 Jun |
Date Detail:
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Created Date: 2010-06-09 Completed Date: 2010-07-01 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: 423-8 Citation Subset: IM |
Affiliation:
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Department of Cardiology, Tabba Heart Institute, Karachi, Pakistan. |
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Aged, 80 and over Biological Markers / blood Coronary Angiography Coronary Artery Disease / blood*, complications, diagnosis Cross-Sectional Studies Electrocardiography Female Hospitalization Humans Male Middle Aged Myocardial Infarction / blood*, complications, physiopathology Pakistan Prospective Studies Severity of Illness Index Troponin I / blood* |
| Chemical | |
Reg. No./Substance:
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0/Biological Markers; 0/Troponin I |
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