ПЕРЕДОВАЯ СТАТЬЯ
ORIGINAL ARTICLES
With a questionnaire «Arrhythmic Patient's Life» (APL), quality of life (QoL) dynamics was investigated in 54 patients with non-valve atrial fibrillation (AF), after radio-frequency ablation (modification) of atrio-ventricual node and pacemaker implantation. In patients with drug treatment-resistant arrhythmia, QoL improved after the surgery. Positive dynamics was observed in QoL aspects reflecting AF clinical severity, psycho-emotional status, and night sleep quality. According to APL questionnaire, QoL in AF patients was mostly affected by arrhythmia symptoms, deteriorated psycho-emotional status and night sleep, as well as the need for permanent and possibly costly treatment.

ИНТЕРВЕНЦИОНАЛЬНАЯ КАРДИОЛОГИЯ
EPIDEMIOLOGY
GUIDELINES FOR THE PRACTITIONER
The authors studied N-terminal pro-brain natriuretic peptide (N-proBNP) role in 43 essential arterial hypertension (EAH) patients, as well as antihypertensive therapy effects on N-proBNP. N-proBNP levels were independent of gender or age. ACE inhibitor spirapril significantly decreased N-proBNP level, while calcium antagonist nifedipine and beta-adrenoblocker metoprolol did not affect it.

BRIEF REPORTS
REVIEW
Coronary heart disease (CHD) remains an actual problem in cardiology. One of the leading causes of CHD patient death is sudden cardiac death (SCD). In CHD patients, individual SCD risk varies substantially. According to modern views, instrumental methods play an important role in adverse outcome risk assessment. T wave alternation (TWA) and heart rate turbulence (HRT) are relatively new, non-invasive tests, providing valuable information on life-threatening arrhythmia risk in CHD patients. Comparing prognostic value of already known stratification tests to that of TWA and HRT, the authors demonstrated substantial clinical importance of the new methods.

INFORMATION
ISSN 2618-7620 (Online)