Comparison of cardiac and gastric responses to vagal stimulation in hypertensive women.

Background: The aim was to evaluate the interactions between the effects of vagal stimulation by sham feeding (nonbaroreflex) and deep breathing (baroreflex) on heart rate variability (HRV) and gastric myoelectrical activity (GMA) in pre- and postmenopausal women with essential hypertension.

Material/methods: One hundred five post- and premenopausal women with hypertension and 60 premenopausal normotensive women were observed. The study protocol consisted of 5 min of resting HRV followed by 5 min of deep breathing (DB), then 6 min of sham feeding (SF) with 30-min electrogastrography (EGG) before and after SF.

Indices of autonomic nervous system activity in women with mild hypertension in the perimenopausal period.

Background: Hypertension is more common after menopause. Increased incidence of hypertension can be attributed to autonomic nervous system dysfunction. The relationship between the parameters of heart rate variability (HRV), the levels of norepinephrine (NE) and leptin, and the menopausal status is still poorly understood, although there is some evidence suggesting distinct influence of estrogens on the above-mentioned indicators.

[Diagnostic and prognostic value of atherosclerosis risk factors for predicting 1 year outcome in patients with acute myocardial infarction and in patients with stable coronary artery disease receiving percutaneous transluminal coronary angioplasty].

Acute coronary syndrome as unstable angina and myocardial infarction are the clinical manifestations of destabilization of coronary atherosclerotic plaques. Optimal medical treatment (OMT) in addition to percutaneous transluminal coronary angioplasty (PTCA) with stent implantation decreased risk of cardiovascular mortality. This study was undertaken for searching the new cardiac risk factors to assess the clinical outcome in patients with acute myocardial infarct and stable angina receiving PTCA with stent implantation.

Gene polymorphisms predisposing to cardiac hypertrophy in patients with cardiac syndrome X.

Polymorphisms of the angiotensin-converting enzyme gene and endothelial nitric oxide synthase gene have been suggested to be associated with left ventricular hypertrophy. The aim of our study was to asses the association between above polymorphisms and left ventricular hypertrophy in patients with cardiac syndrome X. The presence of allele 4 of eNOS VNTR polymorphism could predispose to cardiac hypertrophy.

Gastric myoelectric and autonomic activities and dyspeptic symptoms in cardiological syndrome X patients.

Syndrome X is defined as anginal chest pain accompanied by objective signs of ischemia on exercise testing but with angiographically normal coronary arteries. The aetiology of this syndrome is still not known. The AIM of this study was to evaluate changes in circadian rhythm of gastric myoelectric activity (MA) and autonomic system (AS) and their correlation with dyspeptic symptoms in SX patients.