1/7. Failure of right atrial premature beats to reset atriofascicular tachycardia.A patient with a right atriofascicular (Mahaim) tachycardia was found to have inducible antidromic supraventricular tachycardia, but atrial premature beats from the right atrial free wall failed to reset the tachycardia. An interesting transition from AV nodal reentry tachycardia to Mahaim tachycardia is also presented.- - - - - - - - - - ranking = 1keywords = supraventricular (Clic here for more details about this article) |
2/7. exercise-induced uncommon atrioventricular nodal reentrant tachycardia with sick sinus syndrome: a case report.exercise seldom provokes tachycardia in patients with paroxysmal supraventricular tachycardia (PSVT). This report presents a case of exercise-induced uncommon atrioventricular nodal reentrant tachycardia (AVNRT) with sick sinus syndrome. Treadmill exercise testing provoked AVNRT of long RP' with good reproducibility. Uncommon AVNRT was confirmed by the lack of atrial pre-excitation during PSVT and para-Hisian pacing. The patient has been successfully treated with verapamil and DDD pacing for 5 years.- - - - - - - - - - ranking = 1keywords = supraventricular (Clic here for more details about this article) |
3/7. Spontaneous interpolated atrial premature complex detected by 12-lead ambulatory monitoring.Spontaneous occurrence of an interpolated atrial premature complex, an unusual finding outside of the experimental electrophysiology laboratory, was detected and confirmed by evaluation of P-wave morphology in a patient who underwent 12-lead ambulatory electrocardiography.- - - - - - - - - - ranking = 157848.16883539keywords = atrial premature complex, premature complex, complex (Clic here for more details about this article) |
4/7. Fetal bradycardia in the first trimester: an unusual presentation of atrial extrasystoles.We report a fetus with fetal bradycardia at 13 weeks of gestation secondary to atrial extrasystoles. The fetus subsequently developed paroxysmal supraventricular tachycardia and hydrops fetalis. The cardiac arrhythmia recovered spontaneously without any medical intervention. This case illustrates that atrial ectopic beats can present in the first trimester with fetal bradycardia. Rapidly evolving hydrops fetalis secondary to supraventricular tachycardia can develop, warranting close monitoring with weekly heart rate assessment. Fetal bradycardia secondary to atrial extrasystole should be differentiated from first trimester sinus bradycardia and those associated with major structural cardiac abnormality, which have a high fetal loss rate.- - - - - - - - - - ranking = 1506.260836276keywords = extrasystole, ectopic beat, supraventricular (Clic here for more details about this article) |
5/7. Wide complex tachycardia due to automaticity in an accessory pathway.patients with the Wolff-Parkinson-White (WPW) syndrome have preexcited tachycardia as the result of atrial arrhythmias or antidromic reentry. This article describes a patient with persistent wide complex tachycardia due to abnormal automaticity in the accessory pathway. Radiofrequency catheter ablation resulted in simultaneous elimination of accessory pathway conduction and automaticity. Accessory pathway automaticity may be an infrequent cause of preexcited tachycardia in patients with the WPW syndrome.- - - - - - - - - - ranking = 0.0094625325287194keywords = complex (Clic here for more details about this article) |
6/7. Intrapartum fetal atrial bigeminy--diagnostic and therapeutic role of the fetal scalp stimulation test.Concern for fetal hypoxia often leads to cesarean delivery when persistent fetal bradycardia is identified. A fetus with premature atrial contractions had a prolonged second-stage heart rate of 80 beats/min. Intrapartum echocardiography and electronic fetal heart rate monitoring distinguished bradycardia caused by blocked atrial bigeminy from hypoxic bradycardia. The fetal scalp stimulation test documented normal acid-base balance and normalized the ventricular rate, avoiding cesarean delivery.- - - - - - - - - - ranking = 18264.749854677keywords = premature atrial contraction, atrial contraction, contraction (Clic here for more details about this article) |
7/7. Successful radiofrequency catheter ablation of atrial trigeminy in a young patient.A case is reported of a 35 year old man with atrial parasystolic trigeminy. The patient presented with a 10 year history of sustained supraventricular extrasystole causing symptoms leading to several hospitalisations and continuous unemployment. He had been treated ineffectively with several drug combinations. Radiofrequency catheter ablation of a right atrial focus completely suppressed the ectopic activity. This is the first report to demonstrate the efficacy and safety of radiofrequency catheter ablation in atrial ectopic trigeminy.- - - - - - - - - - ranking = 247.95789599833keywords = extrasystole, supraventricular (Clic here for more details about this article) |