To assess baseline heart rate variability parameters which could correlate with the choice of an optimal algorithm of rate adaptation, 138 patients with bradycardia-tachycardia with indications to pacemaker implantation were assessed.

To assess the role of endocardial right-ventricular electrode in development of tricuspid regurgitation at the intermediate stage after pacemaker implantation, 102 patients aged 66.7±9.6 years were assessed and were implanted a pacemaker.

To study the effect of cardiac contractility modulation of the physical working capacity, dP/dt, segmental contractile function, as well as global and segmental left ventricular myocardial strain, 10 patients aged 55.3-64.2 years (mean age: 59.8 age) with symptomatic left ventricular dysfunction due to dilated cardiomyopathy, post-infarction, or post-myocarditis cardiosclerosis were assessed and treated.

To assess contribution of the focal activity to maintenance of arrythmia, 20 patients with persistent atrial fibrillation were assessed and surgically treated.

Retracted

The history of evolution of surgical methods of treatment of atrial fibrillation is considered; the perspectives of progress in current modifications of labyrinth procedure based on radiofrequency ablation and cryoablation, as well as thoracoscopy, are discussed.

A clinical case report is given of an unpredicted programming of pacing parameters of a permanent pacemaker Yunior SC (Kardioelektronika LLC, Klimovsk, Russia) using a programmer by another manufacturer of cardiac pacemakers (Elestim-Kardio LLC, Moscow, Russia).

A clinical case report is given of a patient with transient left median fascicular block at the background of vasospastic angina.

A case report is given of successful cryoballoon ostial pulmonary vein isolation in a female patient with situs inversus and dextrocardia suffering from atrial fibrillation.

Based on analysis of the literature data on the management of patients with ventricular arrhythmias, a unified Holter monitoring report containing clinical and electrocardiographic characteristics has been developed which may facilitate selecting the treatment strategy.

Key elements of current guidelines on management of patients with atrial fibrillation and indications to anticoagulant therapy after percutaneous coronary intervention are given; a potential of optimization of treatment strategy of these patients is discussed taking the results of recent randomized studies into account.