Predictors of positive electrophysiological study in patients with syncope and bundle branch block: PR interval and type of conduction disturbance.
Ivo Roca LuqueGerard OristrellJaume Francisco-PasqualJulián Rodríguez-GarcíaAlba Santos-OrtegaGabriel Martin-SanchezNuria Rivas-GandaraJordi Perez-RodonIgnacio Ferreira-GonzalezDavid García-DoradoAngel Moya-MitjansPublished in: Clinical cardiology (2018)
Diagnostic yield of EPS in patients with syncope and BBB is moderate (41%). Type of conduction disturbance pattern and PR interval are associated with the electrophysiological (EP) test result. Patients with LBBB or bifascicular block have the highest rate of positive EP test. Long PR interval increases the proportion of positive EPS in all conduction disturbance patterns.
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