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[Diagnostic significance of frequent atrial stimulation against a background of drug denervation in the sick sinus syndrome].

The aim of the present paper is to verify the diagnostic potentialities of frequent atrial stimulations during functional autonomous block. 31 patients (15 males and 16 females) aged 36-65 years were examined. The diagnosis of sick sinus syndrome (SSS) was made according to history data, clinical manifestations of the disease, and ECG data of SSS. All the patients underwent the electrophysiologic study (EPS) in which sinus nodal recovery time and corrected sinus nodal recovery time were determined before and after the functional autonomous block. All the patients were divided into 6 groups according to the findings. This trial was found to increase the diagnostic potential of EPS in the diagnosis of SSS.