Extract

100 Coronary angiography in acute myocardial infarction with “normal” coronary arteries: what prognostic value?

C Jorge, J Silva Marques, A Magalhaes, P Carrilho-Ferreira, D Silva, J Duarte, P Canas Da Silva, A Nunes Diogo

Hospital Lisbon North, Hospital Santa Maria, Lisbon, Portugal

Introduction

Acute myocardial infarction (AMI) occurs typically in the presence of obstructivecoronary disease. However, a group of patients (pts) with AMI have coronary arteries (CA) without angiographically significantlesions. Clinical features and prognosis in this groupremain largely unknown.

Wepropose to evaluate long-term prognosis and its determinants in AMI and normalor non-significant CA lesions pts.

Methods

A cohort study that included consecutive pts whomet the diagnostic criteria for AMI, with normal or without angiographicallysignificant CA lesions. Non-significant lesions were considered as CA luminal stenosis between 1-50% and normal CAif there was nocoronary stenosis at coronary angiography. Left ventricular ejection fraction was evaluated bytransthoracic echocardiography during hospitalization. Long-term prognosis wasdefined as recurrence of angina, re-infarction or death.

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