Articles

The Effect of the Door to Needle Time of Streptokinase Administration on the QTc Interval and the Incidence of Life-Threatening Arrhythmia in Patients With Anterior Myocardial Infarction

Abstract

Early administration of thrombolytic agents is standard for patients presenting with acute myocardial infarction (MI). Also, prolonged QT intervals indicate a higher risk for sudden death in patients with MI. This study was conducted to evaluate the door to needle time of streptokinase administration and the incidence of life-threatening arrhythmia in patients with anterior MI. This study was a prospective, single-center study on participants with anterior MI, who were divided into streptokinase and non-streptokinase groups. After administration of streptokinase, QTc was measured in hyper-acute, acute, and recent phases of anterior MI in the group and compared with acute and recent phases in the non-streptokinase group. The incidence of life-threatening arrhythmia was measured and compared in two groups. The data were analyzed by descriptive statistics method and variance analysis in the SPSS software, version 22. The level of significance was considered to be 0.05. Among 87 participants, there was a significant relationship between the door to needle time of 30 minutes and QTc interval in the hyperacute phase (P=0.005). Also, QTc in the streptokinase group was significantly lower than the non-streptokinase group in the acute phase (P=0.003 vs. P=0.205) and recent phase (P=0.007 vs. P=0.228). The incidence of fatal arrhythmias in the streptokinase group was lower than in the others. The relationship between the incidence of VT/VF and TIMI flow grade was insignificant (P=0.089). Reduction of the door to needle time after anterior MI has significant effects on QTc and incidence of threatening arrhythmia.

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IssueVol 60, No 3 (2022) QRcode
SectionArticles
DOI https://doi.org/10.18502/acta.v60i3.9001
Keywords
Anterior wall myocardial infarction Streptokinase Electrocardiography
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How to Cite
1.
Ghasemi R, Vojdanparast M, Hosseinzadeh Maleki M, Yaghubi M. The Effect of the Door to Needle Time of Streptokinase Administration on the QTc Interval and the Incidence of Life-Threatening Arrhythmia in Patients With Anterior Myocardial Infarction. Acta Med Iran. 2022;60(3):144-149.