The Diagnostic Sensitivity of Electrophysiologic Testing in Patients with Syncope Caused by Transient Bradycardia

21 patients with electrocardiographically documented intermittent atrioventricular block (n = 13) or sinus pauses (n = 8) causing syncope, but whose cardiac rhythm had reverted to normal by the time of referral. 14 men and 7 women, mean age 63 +/- 13 years. 14 had organic heart disease, and 8 were taking cardioactive medications.

Electrophysiologic testing performed before the implantation of a permanent pacemaker

Diagnostic sensitivity of electrophysiologic testing in identifying the documented transient rhythm disturbances