| Significance of Q-wave regression after anterior wall acute myocardial infarction. | |
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MedLine Citation:
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PMID: 9717007 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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AIMS: This study was conducted to clarify the significance of abnormal Q-wave regression in anterior wall acute myocardial infarction. METHODS: A total of 74 patients who presented with a first anterior wall acute myocardial infarction within 6 h of onset were divided into two groups according to the presence (group A, n = 29) or absence (group B, n = 45) of regression of abnormal Q waves. Regression of abnormal Q waves was defined as the disappearance of the Q wave and the reappearance of the r wave > or = 0.1 mV in at least one of leads I, aVL, and V1 to V6. RESULTS: Emergency coronary arteriography revealed that group A had a higher incidence of spontaneous recanalization or good collateral circulation than group B (55% vs 31%, P < 0.05). Peak creatine kinase activity tended to be lower in group A than in group B (2358 +/- 1796 vs 3092 +/- 1946 IU.L-1, P = 0.09). Group A had a greater left ventricular ejection fraction and better regional wall motion at 1 and 6 months after acute myocardial infarction than group B. The degree of improvement of left ventricular ejection fraction and regional wall motion between 1 and 6 months after acute myocardial infarction was significantly greater in group A than in group B. CONCLUSION: Patients with anterior wall acute myocardial infarction showing Q-wave regression had a trend towards a smaller amount of necrotic myocardium and a significantly larger amount of stunned myocardium. |
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Authors:
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K Nagase; A Tamura; Y Mikuriya; M Nasu |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: European heart journal Volume: 19 ISSN: 0195-668X ISO Abbreviation: Eur. Heart J. Publication Date: 1998 May |
Date Detail:
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Created Date: 1998-12-11 Completed Date: 1998-12-11 Revised Date: 2004-11-17 |
Medline Journal Info:
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Nlm Unique ID: 8006263 Medline TA: Eur Heart J Country: ENGLAND |
Other Details:
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Languages: eng Pagination: 742-6 Citation Subset: IM |
Affiliation:
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Second Department of Internal Medicine, Oita Medical University, Japan. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Collateral Circulation / physiology Coronary Angiography* Creatine Kinase / blood Electrocardiography* Humans Long QT Syndrome / physiopathology, radiography* Middle Aged Myocardial Infarction / physiopathology, radiography* Myocardium / pathology Necrosis Prognosis Remission, Spontaneous Ventricular Function, Left / physiology |
| Chemical | |
Reg. No./Substance:
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EC 2.7.3.2/Creatine Kinase |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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