Publications by authors named "V S Arakelyan"
Purpose: To study the adaptation of bacteria to the natural γ-background of mountains and anthropogenic emissions from nuclear power plants; to establish the main factors of variability and speciation of bacteria.
Method: Analysis of materials on the radiation background and its impact on living organisms in the landscape of Armenia, calculation of the absorbed dose by microbes due to rock radiation.
Results: The review shows the death, reproduction, radioresistance and speciation of bacteria in changing conditions of low variable natural and anthropogenic γ-background.
Objective: To evaluate prognostic significance of tissue oximetry in healing of trophic defects in patients with diabetic foot syndrome (DFS) after endovascular revascularization.
Material And Methods: In 42 patients with DFS, tissue oximetry was performed in angiosome projection with the FORE-SIGHT MC-2000 (CASMED) device before and the next day after revascularization of lower limb arteries. The 1st group included 30 patients with wound healing throughout 3 months, the 2nd group included 12 patients with amputation or no healing of trophic defects.
Article Synopsis
- Carotid artery disease is common in patients with coronary heart disease, requiring revascularization options that include simultaneous or staged surgeries for treatment.
- A study involving 192 patients compared the outcomes of simultaneous coronary artery bypass grafting (CABG) and carotid endarterectomy (CEA) versus staged procedures, assessing their 30-day and long-term effects on overall health.
- Results showed no significant differences in short-term and long-term major cardiovascular events between the two groups, but the simultaneous surgery group had a higher risk of complications and required longer ventilatory support, despite not leading to more deaths or major adverse events.
Objective: To compare the short-term and long-term outcomes of hybrid interventions after various infrainguinal reconstructions (restoration of blood flow through superficial femoral artery and pulsatile blood flow through deep femoral artery) in patients with iliac-femoral arterial disease.
Material And Methods: A retrospective analysis included patients after hybrid iliac-femoral interventions between 2014 and 2018. These interventions included stenting of iliac arteries and various open infrainguinal reconstructions.
Purpose: To investigate sources, accumulation, and vertical migration of radionuclides in Armenia, and their impact on biota.
Conclusions: This review describes the radiation status in the landscape of Armenia and features of the impact of natural and human-generated radiation on human and non-human biotas, according to studies of Armenian scientists carried out since the middle of the last century. The mountain landscape demonstrates the diversity, speciation, and radioresistance of the biota, which arise under radiation exposure in a variable environment.