USING FOCAL MYOCARDIAL STIMULATION TO DISTINGUISH SUPRAVENTRICULAR TACHYCARDIA FROM VENTRICULAR TACHYCARDIA

USING FOCAL MYOCARDIAL STIMULATION TO DISTINGUISH SUPRAVENTRICULAR TACHYCARDIA FROM VENTRICULAR TACHYCARDIA

An apparatus and method to discriminate cardiac events by sensing atrial and ventricular depolarizations having associated refractory periods thereafter. A fast ventricular rate is detected in response to the sensed ventricular depolarizations. Responsive to detecting the fast ventricular rate, at l...

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Bibliographische Detailangaben
Hauptverfasser: ZENG LEPENG, BRABEC SCOTT J, URBAN JON F, DEGROOT PAUL J, XIAO YONG-FU, WARMAN EDUARDO N, GILLBERG JEFFREY M, SOMMER JOHN L
Format: Patent
Sprache:eng
Schlagworte:
ELECTROTHERAPY
HUMAN NECESSITIES
HYGIENE
MAGNETOTHERAPY
MEDICAL OR VETERINARY SCIENCE
RADIATION THERAPY
ULTRASOUND THERAPY
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Beschreibung
Zusammenfassung:An apparatus and method to discriminate cardiac events by sensing atrial and ventricular depolarizations having associated refractory periods thereafter. A fast ventricular rate is detected in response to the sensed ventricular depolarizations. Responsive to detecting the fast ventricular rate, at least one stimulus pulse is delivered to atrial tissue within the associated refractory period of the ventricle but outside of an associated refractory period of the stimulated atrial tissue. A ventricular response to the atrial tissue stimulus pulse is determined, and the cardiac event is discriminated based on the ventricular response to the atrial tissue stimulus pulse.