Noninvasive localization of accessory pathways in patients with Wolff-Parkinson-White syndrome with the use of myocardial Doppler imaging
| Autor: | Albert Schömig, Claus Schmitt, Michael A.E. Schneider, Helene von Bibra, Anja Tuchnitz, Andreas Plewan |
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| Rok vydání: | 1999 |
| Předmět: |
Adult
Male medicine.medical_specialty Pathology Time Factors Diagnostic accuracy Accessory pathway Doppler imaging Electrocardiography Heart Conduction System Recurrence Internal medicine medicine Tachycardia Supraventricular Humans Ventricular Function Radiology Nuclear Medicine and imaging Pulsed wave In patient Prospective Studies Reference standards Echocardiography Doppler Pulsed business.industry Body Surface Potential Mapping Diagnostic test Myocardial Contraction Echocardiography Doppler Echocardiography Doppler Color Ventricular activation Echocardiography Cardiology Female Wolff-Parkinson-White Syndrome Cardiology and Cardiovascular Medicine business Algorithms Forecasting |
| Zdroj: | Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography. 12(1) |
| ISSN: | 0894-7317 |
| Popis: | This study sought to examine the diagnostic accuracy of noninvasive prediction of accessory pathway localization in patients with manifest Wolff-Parkinson-White syndrome with the use of myocardial Doppler imaging as a new noninvasive mapping procedure. Myocardial Doppler imaging measures myocardial velocities and therefore can determine the site of earliest ventricular activation in patients with accessory bypass tracts. Twenty-five patients with manifest preexcitation were studied with the use of pulsed wave and M-mode myocardial Doppler imaging for the evaluation of the shortest electromechanical time interval in 9 basal myocardial segments. The new diagnostic test was compared with 3 electrocardiographic algorithms. An invasive mapping procedure served as reference standard. Abnormally short electromechanical time intervals were found in preexcited segments (27 ± 12 ms vs 64 ± 27 ms). Myocardial Doppler imaging correctly localized 84% of the accessory pathways and electrocardiographic algorithms only 48% to 60% of cases. Noninvasive prediction of accessory pathway localization by myocardial Doppler imaging is accurate and proved to be superior to prediction based on electrocardiographic algorithms. (J Am Soc Echocardiogr 1999;12:32-40) |
| Databáze: | OpenAIRE |
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