[Obstructive sleep apnoea syndrome in patients with acute myocardial infarction: the efficacy of treatment and risk factors].

The study included 112 patients with acute myocardial infarction and elevated ST segment on ECG depending on the presence of obstructive sleep apnoea syndrome (OSAS). Dynamic analysis clinico-instrumental characteristics after the hospital-based treatment revealed insufficient reduction of ST segment by day 14 of therapy that correlated with severity of the disease estimated from the apnoea/hypopnoea index. Only these patients responded to the treatment by a decrease of the left ventricular ejection fraction as a marker of systolic dysfunction.