Inferior-septal myocardial infarction misdiagnosed as anterior-septal myocardial infarction: electrocardiographic, scintigraphic, and angiographic correlations / 中国医学科学杂志(英文版)
Chinese Medical Sciences Journal
;
(4): 228-231, 2007.
Article
in English
| WPRIM
| ID: wpr-243523
ABSTRACT
<p><b>OBJECTIVE</b>To explore the infarct sites in patients with inferior wall acute myocardial infarction (AMI) concomitant with ST segment elevation in leads V1-V3 and leads V3R-V5R.</p><p><b>METHODS</b>Five patients diagnosed as inferior, right ventricular, and anteroseptal walls AMI at admission were enrolled. Electrocardiographic data and results of isotope 99mTc-methoxyisobutylisonitrile (MIBI) myocardial perfusion imaging and coronary angiography (CAG) were analyzed.</p><p><b>RESULTS</b>Electrocardiogram showed that ST segment significantly elevated in standard leads II, III, aVF, and leads V1-V3, V3R-V5R in all five patients. The magnitude of ST segment elevation was maximal in lead V1 and decreased gradually from lead V1 to V3 and from lead V1 to V3R-V5R. There was isotope 99mTc-MIBI myocardial perfusion imaging defect in inferior and basal inferior-septal walls. CAG showed that right coronary artery was infarct-related artery.</p><p><b>CONCLUSIONS</b>The diagnostic criteria for basal inferior-septal wall AMI can be formulated as follows (1) ST segment elevates > or = 2 mm in lead V1 in the clinical setting of inferior wall AMI; (2) the magnitude of ST segment elevation is the tallest in lead V1 and decreases gradually from lead V1 to V3 and from lead V1 to V3R-V5R. With two conditions above, the basal inferior-septal wall AMI should be diagnosed.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Diagnostic Imaging
/
Radionuclide Imaging
/
Coronary Angiography
/
Diagnosis
/
Diagnostic Errors
/
Myocardial Infarction
Type of study:
Diagnostic study
Limits:
Aged
/
Female
/
Humans
/
Male
Language:
English
Journal:
Chinese Medical Sciences Journal
Year:
2007
Type:
Article
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