[Wellens's syndrome -- the ominous T-waves].

We describe three patients with Wellens's syndrome: biphasic T-waves or deeply inverted T-waves in the precordial leads plus a history of acute coronary syndrome without serum marker abnormalities. Wellens's syndrome is due to critical stenosis of the proximal left anterior descending artery and there is a high risk for anterior wall myocardial infarction and/or sudden cardiac death within a few weeks. Early coronary angiography with subsequent PCI or CABG should be performed in these patients.

[Does any relationship exist between metabolic disturbances and some markers of renal damage in patients with untreated essential hypertension?].

The essential arterial hypertension is the second (after diabetes mellitus) cause of chronic renal failure which means a great social and economic burden to the society. It is well known that hypertension is a metabolic syndrome resulting in tissue injury. We tried to investigate the possible influence of some metabolic disturbances on renal function in nontreated essential hypertension.

Increased plasma glutathione peroxidase activity in patients with acute myocardial infarction.

Background: Aim of the study was to determine the concentration of selenium (Se) and the activity of glutathione peroxidase (GSH-Px) in patients with acute myocardial infarction (AMI) and to observe the behavior of these parameters during thrombolysis therapy.

Material And Methods: The study comprised two groups of AMI patients and a control group. The first group consisted of 49 patients from whom blood samples were taken after admission to the intensive care unit and subsequently after 3, 7, 14 and 30 days of hospitalization.