Sustained ventricular tachycardia induced by dobutamine stress echocardiography: A prospective study
| Autor: | Eleftherios Giazitzoglou, Anastasios Papadopoulos, Socrates Korovesis, Evangelia Karvouni, Ilias Karabinos, Demosthenes G. Katritsis, Phevos Simeonidis, Eutychios Voridis |
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| Rok vydání: | 2005 |
| Předmět: |
Male
Tachycardia medicine.medical_specialty Peripartum cardiomyopathy Coronary Angiography Ventricular tachycardia Statistics Nonparametric Coronary artery disease Predictive Value of Tests Physiology (medical) medicine.artery Internal medicine medicine Humans Prospective Studies Prospective cohort study Ejection fraction business.industry Middle Aged Prognosis medicine.disease Logistic Models Predictive value of tests Right coronary artery Tachycardia Ventricular Cardiology Female medicine.symptom Cardiology and Cardiovascular Medicine business Echocardiography Stress |
| Zdroj: | Europace. 7:433-439 |
| ISSN: | 1099-5129 |
| DOI: | 10.1016/j.eupc.2005.05.009 |
| Popis: | Aims To investigate the prognostic significance and electrophysiolog- ical characteristics of dobutamine stress echo (DSE)-induced sustained mono- morphic ventricular tachycardia (VT). Methods In our department, 3022 DSE studies were carried out on 2688 patients, aged 54.7G11.8 years, over a 3.5 year period. Patients with DSE-induced VT were studied by means of coronary angiography and electrophysiological testing, and were followed-up for 17.8G9.3 months. Results During DSE, nine patients (0.3%) developed sustained monomorphic VT. Four patients had coronary artery disease, one developed spontaneous right coronary artery (RCA) dissection during DSE, one patient had peripartum cardiomyopathy and the remainder had normal coronary arteries. Logistic re- gression analysis did not identify clinical parameters such as left ventricular ejection fraction, documentation of an ischaemic response or the presence of non-viable myocardial segments during DSE, that could predict the occurrence of DSE-induced VT. Monomorphic VT was inducible by electrophysiological testing in two patients with CAD and reduced LVEF. During follow-up, only these two patients developed VT. Conclusion Sustained monomorphic VT is a rare complication of DSE, with no predictive value for the identification of patients with coronary artery disease and no prognostic significance in patients with normal coronary arteries. No predictors of |
| Databáze: | OpenAIRE |
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