scholarly journals The relationship between the development of ventricular arrhythmias and QT dispersion in the early phase of acute myocardial infarction

2012 ◽  
Vol 2 (1) ◽  
pp. 10-14
Author(s):  
Mustafa Eroglu ◽  
Vatan Barisik ◽  
Murat Akyurt
Keyword(s):  
Myocardial Infarction ◽  
Acute Myocardial Infarction ◽  
Early Phase ◽  
Ventricular Arrhythmias ◽  
Qt Dispersion ◽  
The Relationship

Adjacent QT dispersion: A good predictor of ventricular arrhythmias after myocardial infarction

Open Medicine ◽  
2008 ◽  
Vol 3 (2) ◽  
pp. 179-182 ◽  
Author(s):  
Mohammad Ostovan ◽  
Shahdad Khosropanah ◽  
Shohreh Hooshmand
Keyword(s):  
Myocardial Infarction ◽  
Acute Myocardial Infarction ◽  
Qt Interval ◽  
Regional Variation ◽  
Ventricular Arrhythmias ◽  
Qt Dispersion ◽  
Maximum Difference ◽  
Simple Method ◽  
Qtc Dispersion ◽  
Surface Electrocardiogram

AbstractThe 12-lead surface electrocardiogram adjacent QTc dispersion, which is the maximum difference of corrected QT interval between two adjacent leads, is a simple method to determine regional variation in repolarization and refractoriness. The aim of this study is to evaluate adjacent QTc dispersion as a marker of susceptibility to ventricular arrhythmias after myocardial infarction. A total of 135 consecutive patients with acute myocardial infarction were enrolled in the study. Adjacent QTc, measured by lens magnifier, was calculated on the first, second and third days after acute myocardial infarction. On the second day after acute myocardial infarction, adjacent QTc dispersion was significantly greater in patients with ventricular arrhythmias (P < 0.001). Adjacent QTc dispersion on the first and fifth day after acute myocardial infarction was not associated with development of ventricular arrhythmias. On the second day after acute myocardial infarction, adjacent QTc dispersion is a simple and feasible method for prediction of ventricular arrhythmias.

scholarly journals QT dispersion during acute myocardial infarction: correlation with malignant ventricular arrhythmias

1996 ◽  
Vol 27 (2) ◽  
pp. 172-173 ◽  
Author(s):  
Gaetano Barbato ◽  
Rosaria di Niro ◽  
Nicoletta Franco ◽  
Maurizio Mezzetti ◽  
Pier Camillo Pavesi ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Acute Myocardial Infarction ◽  
Ventricular Arrhythmias ◽  
Qt Dispersion

scholarly journals Impact of Late Ventricular Arrhythmias on Cardiac Mortality in Patients with Acute Myocardial Infarction

2019 ◽  
Vol 2019 ◽  
pp. 1-9 ◽  
Author(s):  
Takuma Takada ◽  
Koki Shishido ◽  
Takahiro Hayashi ◽  
Shohei Yokota ◽  
Hirokazu Miyashita ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Acute Myocardial Infarction ◽  
Ventricular Arrhythmias ◽  
Coronary Intervention ◽  
Primary Pci ◽  
Cardiac Mortality ◽  
Killip Class ◽  
Percutaneous Coronary ◽  
The Relationship ◽  
Lower Ejection Fraction

Objectives. This study investigated the relationship between the timing of ventricular tachycardia or ventricular fibrillation (VT or VF) and prognosis in patients undergoing primary percutaneous coronary intervention (PCI) for acute myocardial infarction (AMI). Background. It is unknown whether the timing of VT/VF occurrence affects the prognosis of patients with AMI. Methods. From January 2004 to December 2014, 1004 patients with AMI underwent primary PCI. Of these patients, 888 did not have VT/VF (non-VT/VF group) and 116 had sustained VT/VF during prehospitalization or hospitalization. Patients with VT/VF were divided into two groups: early VT/VF (VT/VF occurrence before and within 2 days of admission, 92 patients) and late VT/VF (VT/VF occurrence >2 days after admission; 24 patients) groups. Results. The frequency of VT/VF occurrence was high between the day of admission and the 2nd day and between days 6 and 10 of hospitalization. The late VT/VF group had a significantly longer onset-to-balloon time, lower ejection fraction, poorer renal function, and higher creatine phosphokinase (CK)-MB level on admission (p< 0.001). They also had a lower 30-day cardiac survival rate than the early VT/VF and non-VT/VF groups (42% vs. 76% vs. 96%, p < 0.001). Moreover, independent predictors of in-hospital cardiac mortality among patients with AMI who had sustained VT/VF were higher peak CK-MB [Odds ratio (OR: 1.001, 95%confidence interval (CI): 1.000-1.002, p= 0.03)], higher Killip class (OR: 1.484, 95%CI 1.017-2.165, p= 0.04), and late VT/VF (OR: 3.436, 95%CI 1.115-10.59, p= 0.03). Conclusions. The timing of VT/VF occurrences had a bimodal peak. Although late VT/VF occurrence after primary PCI was less frequent than early VT/VF occurrence, patients with late VT/VF had a very poor prognosis.

Relationship between QT dispersion and the incidence of early ventricular arrhythmias in patients with acute myocardial infarction

1997 ◽  
Vol 62 (3) ◽  
pp. 211-216 ◽  
Author(s):  
Luka Zaputović ◽  
Žarko Mavrić ◽  
Teodora Zaninović-Jurjević ◽  
Ante Matana ◽  
Nikola Bradić
Keyword(s):  
Myocardial Infarction ◽  
Acute Myocardial Infarction ◽  
Ventricular Arrhythmias ◽  
Qt Dispersion
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