Relation between coronary arterial dominance and left ventricular ejection fraction after ST-segment elevation acute myocardial infarction in patients having percutaneous coronary intervention.
Am J Cardiol
; 114(11): 1646-50, 2014 Dec 01.
Article
em En
| MEDLINE
| ID: mdl-25282315
ABSTRACT
The presence of a left dominant coronary artery system is associated with worse outcome after ST-segment elevation myocardial infarction (STEMI) compared with right dominance or a balanced coronary artery system. However, the association between coronary arterial dominance and left ventricular (LV) function at follow-up after STEMI is unclear. The present study aimed at evaluating the relation between coronary arterial dominance and LV ejection fraction (LVEF) shortly after STEMI and at 12-month follow-up. A total of 741 patients with STEMI (mean age 60 ± 11 years and 77% men) were evaluated with 2-dimentional echocardiography within 48 hours of admission (baseline) and at 12-month follow-up after STEMI. Coronary arterial dominance was assessed on the angiographic images obtained during primary percutaneous coronary intervention. A right, left, and balanced dominant coronary artery system was noted in 640 (86%), 58 (8%), and 43 (6%) patients, respectively. At baseline, significant difference in LV function was observed, with slightly lower LVEF in patients with a left dominant coronary artery system (LVEF 45 ± 8% vs 48 ± 9% and 50 ± 9%, for left dominant, right dominant, and balanced coronary artery system respectively, p = 0.03). However, at 12-month follow-up no differences in LV function or volumes were observed among the different coronary arterial dominance groups. In conclusion, patients with a left dominant coronary artery system had lower LVEF early after STEMI. At 12-month follow-up, differences in LVEF were no longer present among the different coronary arterial dominance groups.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Volume Sistólico
/
Disfunção Ventricular Esquerda
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Circulação Coronária
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Vasos Coronários
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Recuperação de Função Fisiológica
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Infarto do Miocárdio
Tipo de estudo:
Etiology_studies
/
Incidence_studies
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Observational_studies
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Risk_factors_studies
Limite:
Aged
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Ano de publicação:
2014
Tipo de documento:
Article