Alexander I. Omelchenko

Eyeball Test for the Assessment of Frailty in Elderly Patients in Electrophysiology Department: A Prospective Study

Ilya Losin, Ziad Arow, Ela Giladi, Ranin Hilu et autres

INTRODUCTION: Frailty is a syndrome characterized by increased vulnerability to stressful events due to diminished metabolic, neuromuscular, and functional reserves. It has been associated with poor outcomes in patients with cardiovascular diseases. This study compares the eyeball test and the Fried test …

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Atypical atrial flutter is a distinct arrhythmia associated with advanced heart disease, carrying a significant risk of complications and showing limited treatment success rate

Elhanan Parnasa, Ayelet Shauer, Y Elitzur, Yitschak Biton et autres

Abstract Background Atypical atrial flutter (AtFL) and atrial fibrillation (AF) have similar clinical presentation. However, their underlying substrates and clinical courses may differ significantly. This study aimed to compare the clinical characteristics of patients with AtFL and AF who were admitted for …

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New approaches in the tomographic visualization of joints using X-ray contrast nanoparticles and laser radiation

Alexander I. Omelchenko, Irina G. Dyachkova, Denis A. Zolotov, Alexander A. Kaloyan et autres

New approaches in X-ray visualization of joints using various radiation sources are considered. Investigations of the structure of joint cartilage tissue and model objects structurally and functionally similar to cartilage tissue were conducted using X-ray radiation from a laboratory microtomograph and synchrotron …

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Effectiveness of cryoballoon ablation for atrial fibrillation in patients with left common pulmonary vein variant: insights from a national multicenter catheter ablation registry

Adi Elias, Allon Eyal, Roy Beinart, Eyal Nof et autres

Abstract Background Pulmonary vein isolation (PVI) is the most effective therapy to achieve rhythm control in atrial fibrillation (AF). Yet, data regarding the safety and effectiveness of this procedure in left common pulmonary vein (LCPV) variant is limited. Purpose To explore the …

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New Approaches in the Tomographic Visualization of Joints Using X-ray Contrast Nanoparticles and Laser Radiation

Alexander I. Omelchenko, Irina G. Dyachkova, Denis A. Zolotov, Alexander A. Kaloyan et autres

Abstract New approaches to the X-ray imaging of joints using different radiation sources are discussed. The structure of a joint cartilage tissue and model objects similar to the cartilage tissue in structure and properties have been studied using X-ray radiation of a …

ru (code pays fourni par la source)

Deformation Response of Biological Phantoms and Cartilaginous Tissue at Laser Exposure

Ekaterina M. Kasyanenko, Alexander I. Omelchenko, Olga I. Baum

Abstract Regeneration of cartilaginous tissue and its shape change at laser exposure can be used as a basis for prospective medical operations, improving patient’s quality of life. The most important criterion of such operations success is a cell survival after laser exposure, …

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Temporal Trends in the Prevalence, Treatment and Outcomes of Patients with Acute Coronary Syndrome at High Bleeding Risk

Ziad Arow, Mustafa Gabarin, Alexander I. Omelchenko, Mony Shuvy et autres

(1) Background: High bleeding risk is associated with adverse outcomes in ACS patients. We aimed to evaluate temporal trends in treatment and outcomes of ACS patients according to bleeding risk. (2) Methods: Included were ACS patients enrolled in ACSIS surveys. Patients were …

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Deformations of biological tissues with photothermal nanoparticles under laser irradiation

Ekaterina M. Kasyanenko, Alexander I. Omelchenko

In this work, optical coherence tomography (OCT) of gel phantoms and cartilage tissue of the joint impregnated with nanoparticles was performed under laser exposure to an erbium fiber laser with a wavelength of 1.56 m. Multifunctional "magnetite + gold" nanoparticles with a …

ru (code pays fourni par la source)

Deformation response of biological phantoms and cartilaginous tissue at laser exposure

Ekaterina M. Kasianenko, Alexander I. Omelchenko, Olga I. Baum

Regeneration of cartilaginous tissue and its shape change at laser exposure can be used as a basis for prospective medical operations, improving patient's quality of life. The most important criterion of such operations success is a cell survival after laser exposure, therefore …

ru (code pays fourni par la source)

Laser activation of scleral permeability in glaucoma

O V Khomchik, A A Gamidov, Olga I. Baum, Alexander I. Omelchenko et autres

Electroconductivity of cartilage in the temperature range from -10°C to 50°C with laser heating

Ekaterina M. Kasianenko, Alexander I. Omelchenko

temporal dependency of electrical conductivity of cartilage in course of laser heating by pulse periodical radiation in the condition of natural convection was studied. Various ranges of non-monotonic behaviors of temperature dependency of the conductivity have been revealed.

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Electromechanical behavior of cartilage tissue during laser-induced stresses and relaxation

Ekaterina M. Kasianenko, Alexander I. Omelchenko

Laser surgery of the changing cartilage shape is based on photothermal effect on tissue components, which leads to its plasticization and, consequently, reshaping of this tissue. With the rapid laser heating, an optoacoustic wave is generated in the tissue, by the propagation …

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