Diagnostic utility of long-term remote ECG monitoring in compare with 24 hour Holter monitoring in patients with atrial fibrillation after catheter radiofrequency ablation in the early postoperative period.

AIM: To evaluate the diagnostic utility of long-term remote monitoring of ECG compared with 24 hour Holter monitoring for the detection of cardiac arrhythmias and conduction disturbance in patients with atrial fibrillation (AF) after catheter radiofrequency ablation (RFA; isolation) of the pulmonary veins. MATERIALS AND METHODS: The study included 62 patients aged 58.5±11.1 years, with paroxysmal or persistent AF, after catheter RFA (pulmonary veins isolation). Patients underwent long-term remote ECG monitoring, 24 hour Holter monitoring and transthoracic echocardiogram. RESULTS: After 24 hour Holter monitoring of 62 patients with AF after RFA in 21 of them (33.9%) was detected early recurrence of AF. Remote ECG monitoring of 18 patients, detected AF in 7 patients (39%), 2 of them were asymptomatic AF recurrence. 24 hour Holter monitoring of the same 18 patients AF recurrence was not detected at all (0%). CONCLUSION: Both of devices, long-term remote monitoring of ECG and 24 hour Holter monitoring detected 45.2% of recurrence of AF. Over the wearing of both devises 24 hour Holter and long-term remote monitor the last detected more events among 18 patients (33% vs 0%). Two evens of AF recurrence were asymptomatic.

Pre-treatment condition effects on blood pressure and heart rate variability change in patients with arterial hypertension on therapy.

AIM: To study the relationship of the initial clinical and functional state of patients with arterial hypertension (AH) with the dynamics of daily indices of blood pressure (BP) and sinus rhythm on antihypertensive therapy. MATERIALS AND METHODS: 38 patients were examined (general clinical examination, electrocardiography, echocardiography, daily bifunctional monitoring with the determination of weighted average rhythmogram variations - WARV, clinical and biochemical analysis of blood, glycated hemoglobin, thyroid hormones) and distribyted according to the use of hypotensive drugs of main classes and combined therapy AH. Dynamic monitoring of the effectiveness of treatment was carried out (after 2-4 weeks, then every 1-2 months), clinically and with bifunctional monitoring, correction of therapy. The observation period was 8 months. RESULTS: By the end of the study, 27 patients had target blood pressure, significant decrease in systolic / diastolic blood pressure (10/5 mm Hg and more) occurred in 30 patients. A correlation was found between the effectiveness of antihypertensive treatment and the initial clinical and instrumental parameters of patients: age, heart size (including left ventricular hypertrophy - LVH), thyroid stimulating blood hormone (TSH) level and fasting blood glucose (within normal limits). The level of WARV also correlated with these indicators and was significantly higher in patients who achieved a significant reduction in blood pressure. No significant dynamics of WARV was detected. No relationship between baseline blood pressure with WARV and their changes were identified. The connection of the myocardial mass index with the level of TSH and glycated hemoglobin was demostrated. CONCLUSION: The WARV reflects the severity of organic heart changes associated with age, disease duration, metabolic profile, LVH - heart damage as a target organ in AH, but is not suitable for analyzing its functional changes within one stage of the disease.