Effects of -Adrenergic Receptor Stimulation and Blockade on Rate-Dependent Atrioventricular Nodal Properties
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چکیده
Recent work has shown that alterations in the dynamic atrioventricular (AV) nodal response to changes in heart rate can significantly modify AV nodal function. The present study was designed to evaluate the nature and potential importance of sympathetic regulation of the rate-dependent properties of the AV node. Selective stimulation protocols and mathematical formulations were used to independently quantify AV nodal recovery, facilitation, and fatigue in 12 morphine-chloralose-anesthetized dogs. Vagal effects
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تاریخ انتشار 2005