Electrophysiological study generally is negative in patients < 40 years suspected of supraventricular tachycardia but also complaining of chest pain and/or syncope

Abstract Background The diagnosis of paroxysmal supraventricular tachycardia (SVT) frequently is a dilemma. Electrophysiological study (EPS) is the only means to evaluate the nature of symptoms when noninvasive studies remain negative. Our objectives were to determine the clinical factors of negativity or positivity of (EPS) in patients suspected of SVT. Methods EPS was performed in 2650 patients complaining of tachycardia and suspected of SVT. Transesophageal EPS consisted of programmed atrial stimulation in control state and after isoproterenol. Patients were followed from 1month to 18years (2.93±4years). Results SVT was induced in 1944 patients, age 48±19.5. EPS remained negative in 706 patients, age 34±17 (p Conclusions Among patients complaining of nondocumented tachycardia, suspected of SVT, the association of tachycardia with chest pain and/or syncope and age