[Vertebrobasilar insufficiency caused by extravasal compression of the vertebral artery in the second segment].

Objective: To develop indications for surgical treatment for positional disorders of blood flow in the vertebral-basilar territory caused by the damage to the V2-V3 segment of the vertebral artery (VA).

Material And Methods: One hundred and fourteen patients with systemic and non-systemic dizziness were studied. To assess the state of the VA, blood circulation of the posterior cranial fossa and the base of the brain, ultrasound duplex scanning of blood vessels, selective angiography, MRI, single photon emission computed tomography (SPECT) of the brain and neuropsychological testing were performed.

Adaptive Cardiac Resynchronization Therapy Effect on Electrical Dyssynchrony (aCRT-ELSYNC): A randomized controlled trial.

Background: Adaptive cardiac resynchronization therapy (aCRT) is known to have clinical benefits over conventional CRT, but the mechanisms are unclear.

Objective: Compare effects of aCRT and conventional CRT on electrical dyssynchrony.

Methods: A prospective, double-blind, 1:1 parallel-group assignment randomized controlled trial in patients receiving CRT for routine clinical indications.

Does Sex Modify an Association of Electrophysiological Substrate with Sudden Cardiac Death? The Atherosclerosis Risk in Communities (ARIC) Study.

Background—: Sex is a well-recognized risk factor for sudden cardiac death (SCD). We hypothesized that sex modifies the association of electrophysiological (EP) substrate with SCD.

Methods—: Participants from the Atherosclerosis Risk in Communities study with analyzable ECGs (n=14,725; age, 54.

Arterial Thrombosis and Acute Limb Ischemia as a Complication of COVID-19 Infection.

COVID-19 refers to viral respiratory infections and is the predisposing factor for the development of venous and arterial thrombotic events due to a pronounced inflammatory response, platelet activation, endothelial dysfunction, and stasis. Recent studies have confirmed a high incidence of thromboembolic events, especially in the group of patients with severe coronavirus pneumonia. There have been an increasing number of reports of peripheral arterial thrombosis as well.

Electrocardiogram machine learning for detection of cardiovascular disease in African Americans: the Jackson Heart Study.

Aims: Almost half of African American (AA) men and women have cardiovascular disease (CVD). Detection of prevalent CVD in community settings would facilitate secondary prevention of CVD. We sought to develop a tool for automated CVD detection.