Electrophysiologic Evaluation of Elderly Patients with Sinus Bradycardia
- 1 January 1979
- journal article
- research article
- Published by American College of Physicians in Annals of Internal Medicine
- Vol. 90 (1) , 24-29
- https://doi.org/10.7326/0003-4819-90-1-24
Abstract
Patients (103) with persistent sinus bradycardia were evaluated electrophysiologically and followed prospectively for a mean of 4.6 yr. The 5 yr survival rate was 74.8%, not significantly different from the 72% rate in the general population with similar age and sex distribution. Patients (41) had abnormal corrected sinus-node recovery time. Overall accuracy of abnormal corrected sinus-node recovery time in predicting serious sinus node disease in symptomatic and asymptomatic patients was 90% (37 of 41 patients) and 100% in patients with syncope (18 of 18 patients). The sensitivity of the test was 66%. Abnormal corrected sinus-node recovery time in patients with sinus bradycardia appears to be a valuable specific, predictive index of serious sinus node disease, and is a useful test in selecting patients for pacemaker therapy, especially if dizziness or syncope are present.Keywords
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