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Electrophysiologic Evaluation of Elderly Patients with Sinus Bradycardia: A Long-Term Follow-Up Study

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▸Requests for reprints should be addressed to Dietmar Gann, M.D.; Division of Cardiology, Mount Sinai Medical Center; Miami Beach, FL 33140.

Miami Beach and Coral Gables, Florida

© 1979 American College of PhysiciansAmerican College of Physicians

Ann Intern Med. 1979;90(1):24-29. doi:10.7326/0003-4819-90-1-24
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One hundred three patients with persistent sinus bradycardia were evaluated electrophysiologically and followed prospectively for a mean of 4.6 years. The 5-year survival rate was 74.8%, not significantly different from the 72% rate in the general population with similar age and sex distribution. Forty-one patients 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 therefore a useful test in selecting patients for pacemaker therapy, especially if symptoms such as dizziness or syncope are present.





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