[Menopausal changes in circadian heart rate variability].

Objectives: Presence of cardiovascular symptoms in perimenopausal period is suggested to be associated with the decrease of cardiac autonomic nervous system (cANS) regulatory function.

Aim: Aim of the study was to evaluate whether menopause affects circadian heart rate variability (HRV).

Method: 42 healthy women were divided into two equal groups: premenopausal (age 43 +/- 7 years) and postmenopausal (age 53 +/- 3 years, 3.

[Character of patients with paroxysmal atrial fibrillation].

Paroxysmal atrial fibrillation (PAF) is one of the most frequent cardiac arrhythmias. Our purpose in the current study was the presentation of the main PAF aetiology and the most effective methods of therapy. The study revealed that both coronary artery disease and arterial hypertension are the most frequent reasons of PAF whereas acute physical effort seems to be the main triggering factor.