Biomedical subjects

M Pilc

Publications and source records attributed to M Pilc.

3 recordsLinked to original sources

PubMed1991

[Significance of invasive electrophysiologic examination in the diagnosis of ventricular tachyarrhythmia in Wolff-Parkinson-White syndrome].

The authors assessed basic clinical and electrophysiological indicators (using invasive electrophysiological examination) in 15 patients (11 men and 4 women) with symptomatic Wolff-Parkinson-White syndrome. In 47% of the examined patients they detected artificial ventricular tachyarrhythmias during programmed ventricular stimulation. They found that there is a risk of the development of spontaneous ventricular tachyarrhythmias under the following conditions: 1. transfer of impulses from the atria with an increased excitability (in two patients), 2. in the ventricular heart muscle (in one patient). In general they proved a high risk (in 20%) in patients with ventricular fibrillations and ventricular tachycardias leading to sudden death.

Adolescent↗

PubMed1991

[Programmed ventricular stimulation in the evaluation of the clinical significance of premature ventricular contractions].

The authors subjected 34 patients (27 men and 7 women) to invasive electrophysiological examination. All patients had early ventricular contractions class 3-5 according to Lown which were recorded during ECG monitoring in bed or by Holter's system. A pathological excitability of the ventricular myocardium was found during programmed stimulation in 29% of the subjects. The excitability of the heart muscle was substantially enhanced by the incidence of ischaemic heart disease and reduced left ventricular function. The decreased frequency and severity of early ventricular contractions during bicycle ergometry, the absence of palpitations and syncopes increases the probability of normal excitability of the ventricular myocardium.

Adolescent↗

PubMed1991

[Arrhythmic syncope and invasive electrophysiologic heart function tests].

The authors submitted to electrophysiological examination a total of 100 patients (66 men and 34 women) with brief disorders of consciousness where they ruled out extracardiac causes of unconsciousness, impaired blood flow through the heart and the syndrome of s-a node dysfunction. Forty-three subjects had severe arrhythmias during ECG monitoring in bed or by Holter's system (20 subjects paroxysms of ventricular tachycardia, 14 subjects ventricular extrasystoles according to Lown class 3-5, six subjects had transient high-grade a-v blocks, three subjects had symptomatic paroxysms of supraventricular tachycardia). In 57 patients ECG monitoring did not reveal ectopic arrhythmias and high-grade a-v blocks. Invasive examination confirmed or diagnosed arrhythmic syncopes in 49% of the entire group of 100 patients. It assessed the arrhythmic cause of syncopes in 33% of 57 subjects without severe arrhythmias and in 70% of 43 subjects with severe arrhythmias detected during ECG monitoring.

Adolescent↗