Biomedical subjects

M de Marneffe

Publications and source records attributed to M de Marneffe.

20 records · Page 2Linked to original sources

PubMedDate not supplied

[Variability of the RR interval: a measure of systemic sympathetic activity].

Beat-to-Beat variability may now be measured, from 24h ECG recordings (Holter monitoring), in the time domain (by statistical indexes) and in the frequency domain (spectral analysis). This variability gives essential informations about the interactions of different cardiovascular variables, and especially about the balance of the two components of the sympathetic nervous system. It is generally thought that a malfunction of the ortho/parasympathetic balance favours ventricular fibrillation. So the potential interest of this new technique as a predictor of sudden cardiac death seems enormous.

Death, Sudden, Cardiac↗

PubMedDate not supplied

[Treatment of arrhythmias in the elderly].

The disorders of cardiac rhythm in the elderly are frequent and important since they are generally less tolerated than in young patients. Sinus bradycardia is one of the most common disorder of cardiac rhythm; symptomatic sinus bradycardia will be treated by pacemaker insertion in most cases. Atrial fibrillation is frequent in the elderly and often poorly tolerated; the aim of therapy is to restore sinus rhythm and prevent recurrences. In order to avoid strokes (emboli), old patients, with chronic atrial fibrillation should be submitted to low-level anticoagulation. Elderly patients may also suffer from supraventricular and ventricular premature beats which should be treated if they present some degree of malignancy.

Aged↗