Among 58 consecutive patients who underwent electrophysiologic testing for risk assessment and who subsequently received a third-generation implantable cardioverter-defibrillator, 39 had ventricular tachycardia induced in the baseline state and 19 had ventricular tachycardia induced only after administration of intravenous procainamide, increasing the yield of electrophysiologic risk assessment...

OBJECTIVE To investigate the impact of vascular factors on the electrophysiologic severity of diabetic neuropathy (DPN). METHODS Total 530 patients with type 2 diabetes were enrolled retrospectively. We rated severity of DPN from 1 (normal) to 4 (severe) based on electrophysiologic findings. We collected the data concerning vascular factors (including brachial-ankle pulse wave velocity [PWV],...

Coronary spasm provocation by intracoronary methylergonovine was performed in 14 patients (8 men and 6 women, mean age 56 +/- 6 years) with syncope that remained unexplained despite neurologic and noninvasive cardiac evaluations. Electrophysiologic testing was also performed in 6 of 14 patients. No patient had structural heart disease or significant fixed stenosis of greater than or equal to 75...

A 76-year-old woman with a history of hypertension and mastectomy for breast carcinoma was referred for evaluation of recurrent syncope. She characterized a typical episode as a sudden loss of consciousness without a prodrome. There was no sensation of fatigue after the events. Her medical regimen consisted of amlodipine and a hydrochlorothiazide/triamterene combination. Results of physical exa...

The estimated incidence of acute facial paralysis is approximately 30 patients per 100000 populations annually. Facial paralysis is an extremely frightening situation and gives extreme stress to patients because obvious disfiguring face may cause significant functional, aesthetic, and psychological disturbances. For stressful patients with acute facial paralysis, it is very important for clinic...

Combinations of antiarrhythmic drugs are frequently used to treat refractory ventricular tachycardia (VT), but few scientific data support this practice. We examined the efficacy and electrophysiology of 110 antiarrhythmic drug combination trials at electrophysiologic study in 74 patients with recurrent ventricular tachycardia. Lidocaine was combined with quinidine in 33 trials, procainamide in...

OBJECTIVE To determine the approach that pediatric electrophysiologists use as they evaluate asymptomatic patients with Wolff-Parkinson-White (WPW) syndrome regarding electrophysiologic testing and radio frequency ablation. METHODS A 21-question survey was mailed to 66 pediatric electrophysiologists who had voluntarily submitted patient data at any time to the Pediatric Radio Frequency Ablati...