An Increase in the Left Atrium Volume During Exercise is Associated With a Positive Result of a Diastolic Stress Test in Patients With Arterial Hypertension.

Aim: To study the relationship between changes in left atrial volume (LAV) during exercise and the result of a diastolic stress test (DST) in patients with arterial hypertension (AH).

Material And Methods: The study included 219 patients with AH without ischemic heart disease and atrial fibrillation. During the DST performed before and after exercise, the ratio of transmitral flow velocity to mitral annular velocity (E/e'), the left atrial global longitudinal strain in the reservoir phase (reservoir strain), and LAV were determined.

Styrylpyridinium Derivatives for Fluorescent Cell Imaging.

A set of styrylpyridinium (SP) compounds was synthesised in order to study their spectroscopic and cell labelling properties. The compounds comprised different electron donating parts (julolidine, -dimethylaminophenyl, -methoxyphenyl, 3,4,5-trimethoxyphenyl), conjugated linkers (vinyl, divinyl), and an electron-withdrawing -alkylpyridinium part. Geminal or -compounds incorporating two styrylpyridinium (-SP) moieties at the 1,3-trimethylene unit were synthesised.

Features of Left Atrial Appendage Thrombosis in Patients With Persistent Nonvalvular Atrial Fibrillation After COVID-19.

Aim      To evaluate the incidence and characteristic features of left atrial appendage (LAA) thrombosis in patients with persistent nonvalvular atrial fibrillation (AF) after COVID-19.Material and methods  Transesophageal echocardiography (TEE) was performed for 469 patients (57.4 % males; mean age, 64.

Left Atrial Strain as a Predictor of Diastolic Stress Test Results in Patients With Arterial Hypertension.

Aim      To study a possibility of using the left atrial strain (LAS) for predicting results of the noninvasive diastolic stress test (DST) in patients with arterial hypertension (AH).Material and methods  The study included 98 patients previously diagnosed with AH. As a part of evaluation for complaints of dyspnea, palpitation or pain in the area of the heart, DST and transthoracic echocardiography were performed.

[Peculiarities of nervous/mental state and hemodynamic disturbances in patients with arterial hypertension in relation to the level of total cholesterol in the blood plasma].

To investigate peculiarities of the clinical picture, nervous/mental state, indices of cognitive functions and extracranial hemodynamics in patients with arterial hypertension in relation to the level of total cholesterol in the blood plasma, 130 patients (69 males, 61 female) were examined. Patients were divided into 3 groups by the level of total cholesterol: the first group (n = 46) contained the patients with the desirable level of total cholesterol, the second group (n = 40)--with the borderline level and the third one (n = 44)--with the elevated level. The results show that, with the increase of total cholesterol in the blood plasma from desirable to higher level, patients with arterial hypertension develop signs of discirculatory encephalopathy; elastic/tonic characteristics of the vascular wall of extracranial arteries changed with the increase of blood flow asymmetry that correlated with neurasthenic disturbances of anxious-depressive type and significant reduction of mental capacity.