Holter monitoring, sinoatrial conduction time, prognosis
Copyright policy )Holter monitoring, sinoatrial conduction time, prognosis
To evaluate the usefulness of the Holter method of sinoatrial conduction time (SACT) calculation in predicting the future occurrence of sinus node disease, and the emergence of indications for permanent pacing in patients with unexplained syncope.The study group included 218 patients (mean age 55 ± 17 years, 116 men) with syncope of unknown etiology in whom spontaneous atrial premature depolarizations (APDs) occurred during Holter monitoring and SACT could be calculated. A SACT value during daily activity > 150 ms was assumed as abnormal.The prospective observation time was 48 ± 11 months. During follow-up sinus node disease was diagnosed in 22 persons, including 18 patients with baseline SACT > 150 ms and 4 with SACT 150 ms and 3 with SACT 150 ms and a future diagnosis of sinus node disease and pacemaker implantation.The results suggest that the Holter method of SACT calculation is useful in predicting sinus node disease and indications for permanent pacing in patients with unexplained syncope.
Adult, Aged, 80 and over, Male, Sick Sinus Syndrome, Chi-Square Distribution, Time Factors, Cardiac Pacing, Artificial, Action Potentials, Middle Aged, Prognosis, Syncope, Predictive Value of Tests, Multivariate Analysis, Electrocardiography, Ambulatory, Humans, Female, Prospective Studies, Aged, Proportional Hazards Models, Sinoatrial Node
Adult, Aged, 80 and over, Male, Sick Sinus Syndrome, Chi-Square Distribution, Time Factors, Cardiac Pacing, Artificial, Action Potentials, Middle Aged, Prognosis, Syncope, Predictive Value of Tests, Multivariate Analysis, Electrocardiography, Ambulatory, Humans, Female, Prospective Studies, Aged, Proportional Hazards Models, Sinoatrial Node
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