We studied the recent alcohol consumption and other possible precipitating factors in 99 consecutive patients (53 men and 46 women) all under 65 years of age with sustained re-entry and automatic supraventricular tachyarrhythmias and compared them with those of two groups of controls. One control group was derived from the Emergency Room patients and matched for age and sex; the other group (44...

Atrioventricular nodal reentrant tachycardia (AVNRT) represents the most common regular supraventricular arrhythmia in humans.1 The precise anatomic site and nature of the pathways involved have not yet been established, and several attempts to provide a reasonable hypothesis based on anatomic or anisotropic models have been made.2 There has been considerable evidence that the right and left in...

CONTEXT Exposure to air pollution can result in the onset of arrhythmias. CASE PRESENTATION We present a case of a 58-year-old woman who volunteered to participate in a controlled exposure to concentrated ambient particles. Twenty minutes into the exposure, telemetry revealed new onset of atrial fibrillation. The exposure was discontinued, and she reverted to normal sinus rhythm approximately...

In six successive patients, none of whom had the Wolf-Parkinson-White syndrome, recurrent episodes of paroxysmal supraventricular tachycardia (SVT) were analyzed to determine the mechanism by which this arrhythmia is initiated and sustained. In each patient, simultaneous intracavitary atrial electrograms and surface electrocardiograms were recorded during the onset of numerous spontaneous episo...

Electrocardiograms of 70 patients with chronic airway obstruction were examined from 148 consecutive admissions for acute respiratory failure. Forty-seven percent of the patients had major sopraventricular or ventricular arrhythmias. These arrhythmias were documented on 36 percent of bospital mbidwns. Supraventricular arrhythmias were slihtiy more common than ventricular arrhythmias, the most f...

A 31-year-old patient with Brugada syndrome presented at our clinic after an electrical shock from his dual-chamber implantable cardioverter-defibrillator (ICD – Biotronik Iperia), implanted in secondary prevention of sudden cardiac death (ventricular fibrillation zone > 214 bpm, detection counter 18/24; monitor ventricular tachycardia zone > 176 bpm with supraventricular tachycardia discrimina...

We report a case of a 35-year-old housewife who had a repetitive ventricular fibrillation following cardiac surgery. This arrhythmia was induced by sinus or supraventricular ectopic beats conducted to the ventricles and interrupting the preceding T or T U wave during incomplete A-V dissociation. The cycle length (Q-Q') and the Q-Q'/Q-T ratio of the beats preceding fibrillation were significantl...

yENTRICUIAR and supraventricular tachyeardias are occasionally resistant to drug therapy and may culminate in congestive heart failure, circulatory collapse, ventricular fibrillation, and death. In this paper are presented recent experiences with eight patients in whom tachyeardias were unresponsive to drug therapy and were terminated by external electric countershock, usually unider general an...

Flecainide acetate is a potent class IC antiarrhythmic agent used mainly for the treatment of supraventricular arrhythmias. Acute overdose of this drug is rare but frequently fatal. The clinical course of a patient that ingested a large quantity of flecainide as a suicide attempt is described and current therapeutic strategies discussed. (JAccid Emerg Med 1998;15:423-425)

yENTRICUIAR and supraventricular tachyeardias are occasionally resistant to drug therapy and may culminate in congestive heart failure, circulatory collapse, ventricular fibrillation, and death. In this paper are presented recent experiences with eight patients in whom tachyeardias were unresponsive to drug therapy and were terminated by external electric countershock, usually unider general an...