Isfahan University of Medical Sciences

Science Communicator Platform

Stay connected! Follow us on X network (Twitter):
Share this content! On (X network) By
Prognostic Value of Ventriculoatrial Conduction on Programmed Ventricular Stimulation in Patients Suspicious for Ventricular Tachyarrhythmia



Nasab MRS1 ; Soleimani A2 ; Dehghani MR3
Authors
Show Affiliations
Authors Affiliations
  1. 1. Department of Pacemaker and Electrophysiology, Chamran Heart Hospital, Isfahan University of Medical Sciences, Isfahan, Iran
  2. 2. School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
  3. 3. Department of Pacemaker and Electrophysiology, Seied-O-Shohada Heart Hospital, Orumieh University of Medical Sciences, Orumieh, Iran

Source: Journal of Isfahan Medical School Published:2011

Abstract

Background: Prediction of ventricular tachycardia (VT) inducibility through clinical and paraclinical predictors and ability of ventriculoatrial (VA) conduction can help to identify high risk patients easier. Methods: Fifty four patients suspicious for ventricular tachyarrhythmia underwent electrophysiologic study for basic measurements and programmed stimulation for ventricular tachycardia induction, electrocardiography and echocardiography during October 2007-October 2009. Finding: The mean age of participants was 59.4 ± 13.9 years. Forty three patients (79.6%) were male and 39 patients (72.2%) had history of ischemic heart disease (IHD). ventricular tachycardia was induced in 30 patients (55.6%). Ventriculoatrial conduction was recorded in 38.9% of patients (21/54). Ventricular tachycardia was induced in 52.4% of patients (11/21) with ventriculoatrial conduction versus 57.6% (19/33) in ventriculoatrial dissociate patients (P = 0.3). Mean of ventriculoatrial Wenchebach point (VAWP) was 400 ± 96.6 and 393 ± 103.6 ms in ventricular tachycardia inducible and non inducible patients respectively (P = 0.4). Presence of ischemic heart disease and lower left ventricular ejection fraction (LVEF) were associated with increased probability of ventricular tachycardia induction (P = 0.008 and 0.04 respectively). Presence of ischemic heart disease predicts ventricular tachycardia inducibility independently. Patients with inducible ventricular tachycardia had slightly shorter atrial-His (AH) interval (97.33 ± 30.4 and 112.1 ± 42.6 ms, P = 0.07). Conclusion: Ventricular tachycardia induction was very slightly more common in ventriculoatrial dissociate patients but we could not prove it. Presence of ischemic heart disease independently and lower left ventricular ejection fraction dependently could predict ventricular tachycardia inducibility.
Related Docs
View other Related Docs
1. Clinical and Electrophysiological Predictors of Ventriculoatrial Conduction in Patients Under Evaluation for Ventricular Tachyarrhythmia, Journal of Tehran University Heart Center (2010)
2. Associated Factors With the Occurrence of Inappropriate Shocks Among Admitted Patients With Ischemic Cardiomyopathy, ARYA Atherosclerosis (2022)
3. Tachycardia-Induced Cardiomyopathy, ARYA Atherosclerosis (2014)
4. Atrial Fibrillation in Patients With Constrictive Pericarditis: The Significance of Pericardial Calcification, Annals of Noninvasive Electrocardiology (2009)
5. The Significance of Right-Sided Precordial Ecg Leads (V3r and V4r) in Assessing Right Ventricular Dysfunction: A Single Center Cross-Sectional Study, Annals of Noninvasive Electrocardiology (2024)
6. Main Clinical Determinants of the Presence of Coronary Artery Disease in Patients With Left Bundle Branch Block, Acta Biomedica (2015)
7. The Prevalence of Coronary Artery Disease in an Urban Population in Isfahan, Iran, Acta Cardiologica (1999)
8. The Effect of Contrast Dye Injection and Balloon Inflation on Qtc and Qtc Dispersion in 12 Leads Surface Ekg During Ptca, ARYA Atherosclerosis (2011)
Experts (# of related papers)
View all Related Experts
Hasan Shemirani (4)
Nizal Sarrafzadegan (3)
Other Related Docs
9. Clinical Outcomes of Subcutaneous Implantable Cardiac Defibrillator Implantation – Iran Sicd Registry, PACE - Pacing and Clinical Electrophysiology (2023)
10. Assessment of the Relationship Between Iron Overload Based on Cardiac T2* Mri and Fragmented Qrs in Beta-Thalassemia Major Patients, Shiraz E Medical Journal (2020)
11. Efficacy of Prescribing Inderal for Polymorphic Ventricular Tachycardia in a Young Patient With the Normal Qt Interval: A Case Report Study, SAGE Open Medical Case Reports (2024)
12. Electrocardiographic (Ecg) Clues to Differentiate Idiopathic Right Ventricular Outflow Tract Tachycardia (Rvott) From Arrhythmogenic Right Ventricular Cardiomyopathy (Arvc), Indian Heart Journal (2014)
13. Clinical Determinants of Left Ventricular Ejection Fraction Deterioration in Patients Suffered From Complete Left Bundle Branch Block, Iranian Red Crescent Medical Journal (2015)
14. Heart Rate and Cardiovascular Events: A Nested Case-Control in Isfahan Cohort Study, Archives of Iranian Medicine (2014)
15. Estimation of Left Ventricular End Diastolic Pressure (Lvedp) in Patients With Ischemic Heart Disease by Echocardiography and Compare It With the Results of Cardiac Catheterization, ARYA Atherosclerosis (2011)
16. Intracardiac Atrial Signal Amplitude in Congenital and Acquired Complete Heart Block, Indian Pacing and Electrophysiology Journal (2010)
17. Association of Serum Potassium Level With Ventricular Tachycardia After Acute Myocardial Infarction, ARYA Atherosclerosis (2012)
18. P-Wave Dispersion in Patients With Constrictive Pericarditis of Nonischemic Etiology Including Tubercoulous and Non-Tuberculous Subjects: A Pilot Study, International Cardiovascular Research Journal (2015)
19. Effect of Vasopressin on Electrocardiographic Changes Produced by Ischemia-Reperfusion in Rats, Pakistan Journal of Pharmaceutical Sciences (2021)
20. Electrocardiogram Abnormalities and Risk of Cardiovascular Mortality and All-Cause Mortality in Old Age: The Kahrizak Elderly Study (Kes), Archives of Gerontology and Geriatrics (2014)
21. The Prevalence of Atrial Fibrillation in the Iranian Population in a 15-Year Cohort Study, Iranian Heart Journal (2022)
22. Association Between Latest Activated Sites in the Left Ventricle and Akinetic Segments in Patients With Ischemic Cardiomyopathy, Journal of Tehran University Heart Center (2016)
23. The Relationship of the Changes in Lateral Leads I and Avl in Electrocardiogram With Echocardiography and Coronary Angiography Findings in Patients With Acute Coronary Syndrome, ARYA Atherosclerosis (2022)
24. Echocardiography and Stroke; a Narrative Review, Journal of Isfahan Medical School (2021)
25. Effects of Mitral Valve Prolapse on Heart Rate Variability and the Autonomic Nervous System in Children, Journal of Tehran University Heart Center (2022)
26. A Decade of In-Hospital Resuscitation: Outcomes and Prediction of Survival?, Resuscitation (2006)
27. Echocardiographic Assessment of Inappropriate Left Ventricular Mass and Left Ventricular Hypertrophy in Patients With Diastolic Dysfunction, Journal of Research in Medical Sciences (2012)
28. Proximal Coronary Sinus Pacing Induced Prolonged Asystole, ARYA Atherosclerosis (2022)
29. Evaluation of the Predictive Value of Gensini Score on Determination of Severity of Coronary Artery Disease in Cases With Left Bundle Branch Block, Comparative Clinical Pathology (2018)