In a patient with complete A-V block suffering from attacks of dizziness an intermittent A-V conduction with a short P-R interval and a delta wave of the conducted ventricular complex were observed. After accelerating the sinus rate by atropine and by exercise, one-to-one conduction was established
The Wolff-Parkinson-White syndrome or its variant, the pre-excitation syndrome, are described in about 1.2 per 1000 of the population, so the anaesthetic management of patients with this syndrome is important. Our experience is reported in 15 elective operations on seven patients with pre-excitation
Abnormal atrioventricular conduction in children and adolescents without obvious underlying cardiac disease poses the problem of long term prognosis. This study of 45 patients aged 8 to 18 years with congenital atrioventricular block (30 cases) or ventricular pre-excitation (15 cases), was
Effects of verapamil (5 mg i.v.) on excitation conduction in 20 patients who already had a basic alteration (7 with ventricular pre-excitation syndrome) were studied by His electrogram, during spontaneous sinusal rhythm and atrial electrostimulation in increasing frequencies. In 4 cases, a test
Pharmacological testing has several indications in the diagnosis of arrhythmia. It is used for the diagnosis of bradycardia-related syncope either during non invasive tests as adenosine triphosphate (ATP) for the diagnosis of vasovagal syncope, but also for the diagnosis of sick sinus syndrome or
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