Author/Authors :
Fazelifar، Amirfajam نويسنده Assistant Professor of Cardiology, Cardiac Electrophysiology Research Center, Rajaie Cardiovascular, Medical and Research Center , , Scot، Taimor نويسنده Resident of Cardiology, Rajaie Cardiovascular, Medical and Research Center , , Firozi، Ata نويسنده Assistant Professor of Cardiology, Cardiac Intervention Research Center, Rajaie Cardiovascular, Medical and Research Center , , Bayanati، Mohammadreza نويسنده Fellow of Interventional Cardiology, Rajaie Cardiovascular, Medical and Research Center , , Tatina، Alireza نويسنده Resident of Cardiology, Rajaie Cardiovascular, Medical and Research Center ,
Abstract :
Background- Myocardial infarction (MI) is the leading cause of morbidity and cardiovascular
mortality. The presence of collateral coronary vessels is believed to be a good prognostic
factor. Accordingly, this study was performed to compare electrocardiographic (ECG) changes
in MI patients with and without collaterals.
Methods and Materials- This study was performed as a cross-sectional study among 200 patients
admitted for MI in a training hospital in 2011 and 2012. The study population was divided into
two categories: patients with collateral coronary vessels and those without them. ECG findings
were compared between the two groups.
Results- Among the ECG findings, only the QRS pattern in V1 was associated with the presence of
collateral vessels. Abnormal QRS axis, pathological Q wave, persistent ST increase/decrease,
QRS notch, PR interval, and QRS duration were not related to the presence of collateral vessels
(p value > 0.05).
Conclusions- According to our results, it may be concluded that ECG changes are not related to the
presence of collateral coronary vessels in angiographic assessment. It is recommended that
further studies be carried out with evaluation of ECG and after one-month catheterization
results of patients to obtain more definite results
