| ORIGINAL ARTICLE |
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| Year : 2005 | Volume
: 9
| Issue : 3 | Page : 151--154 |
Modes of presentation of acute myocardial infarction
KN Chowta1, PD Prijith1, MN Chowta2
1 Department of Medicine, Kasturba Medical College, Mangalore, India 2 Department of Pharmacology, Kasturba Medical College, Mangalore, India
Correspondence Address:
K N Chowta Department of Medicine, Kasturba Medical College Hospital, Attavar, Mangalore-575001 India

DOI: 10.4103/0972-5229.19681
Aim: To study the various modes of presentation of acute myocardial infarction (AMI). Methods: A total number of 60 patients of AMI admitted in various teaching hospitals of Kasturba Medical College, Mangalore, were studied. The following factors were evaluated: onset of symptoms, mode of presentation, site of infarction, and hospital outcome. Results: Out of 60 patients, 12 (20%) presented with atypical symptoms. The maximum incidence AMI with atypical symptoms was in the age group of 65-74 yr (30.7 %), followed by the age group of 55-64 yr (25%). No patient presented with atypical symptoms below 30 yr. Patients experiencing MI without chest pain tended to be older (mean age 61 vs 58 yr) and were women (35% vs 12.5%); 80% of patients presented with chest pain followed by dyspnea (28.3%) and vomiting (13.3%). The in-hospital mortality of MI patients who presented with typical and atypical symptoms were 16.6% and 33.3%, respectively. In this study, anteroseptal infarction was most common (31.6%). Fifty percent of inferior-wall MI patients presented with atypical symptoms. Conclusion: In this study, there was no significant association between onset of MI and circadian pattern.
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