Abstract
Patients (pts) with history of paroxysmal supraventricular tachycardia (PSVT) have a higher risk of atrial fibrillation (AF) than other pts. The purpose of the study was to evaluate the incidence of AF in pts seen for PSVT and to look for the factors of AF. 1099 pts aged from 5 to 85 years were consecutively studied for spontaneous PSVT that was confirmed by electrophysiological study (EPS). Pts with anterograde conduction through an accessory pathway were excluded. The history of spontaneous AF was noted. Clinical factors (age, gender, heart disease) and electrophysiological factors were noted. Pts with and without AF were compared. 62 pts developed documented paroxysmal or permanent AF or flutter (6%). Several clinical factors were associated with AF: pts were older than 1037 pts without AF (59 ± 13 years vs 50 ± 19, p < 0.0009); they were more frequently men (35/62; 56%) than other pts 383/1037; 37%) (p < 0.002). Associated heart disease (HD) (ischemic, valvular, hypertensive HD) was more frequent in pts with AF (17/62; 27%) than in pts without AF (66/1037; 6%) (p < 0.0000). There were no differences at EPS concerning the mechanism of reentry: typical atrioventricular (AV) node re-entrant tachycardia (AVNRT) was noted in 48/62 pts with AF (77%), 712/1037 pts without AF (69%) (NS); reentry in a concealed accessory pathway (AVRT) was noted in 8 pts with AF (14%) and 191 pts without AF (18%) (NS); atypical AVNRT was noted in 6 pts with AF (10%) and 134 pts without AF (13%) (NS). The induction or the spontaneous occurrence of AF during electrophysiological study was more frequent in pts with AF (17/62; 27%) than in pts without AF (113/1037; 11%) (p < 0.00000). The incidence of AF was 6% in 1099 consecutive patients who had PSVT. The risk was correlated with the classical factors of AF, the older age, the male gender and the presence of HD. The mechanism of the reentry does not change the incidence of AF but the induction of AF is more frequent than in other patients. Thus, patients with PSVT and with these risk factors should be carefully followed.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
