Publications by authors named "Petrosian D"

Introduction: COVID-19 challenges have underscored the potential of telemedicine in migraine management. This study focuses on assessing patients' telemedicine experience for headache management in Lithuania and identifying key barriers and facilitators for its wider use.

Methods: A nationwide e-survey was conducted in 2023 via the Lithuanian Association of Migraine Patients' website, social media platforms, websites of public and private healthcare facilities, and migraine self-help groups.

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Detection of neuronal antibodies for autoimmune encephalitis and paraneoplastic neurological syndromes relies on commercially available cell-based assays and lineblots. However, lineblots may reveal the presence of neuronal antibodies in patients with various non-autoimmune etiologies. Herein we describe patients with non-autoimmune etiologies (cohort B) and detectable neuronal antibodies and compare them to definite cases of autoimmune encephalitis (cohort A) for differences in clinical data.

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Article Synopsis
  • CADASIL is a genetic condition affecting blood vessels in the brain, leading to varying symptoms, and this study aims to validate a new grading system for it across multiple medical centers in the U.S.
  • Researchers analyzed medical records from patients with confirmed CADASIL, categorizing them into five severity grades based on symptoms like migraines, stroke, and dementia.
  • The study found a good agreement in grading among different raters and noted that patients with less severe grades were generally younger and had fewer vascular risk factors compared to those with higher severity grades.
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Article Synopsis
  • Tumefactive multiple sclerosis (TmMS) is a rare form of demyelinating disease that can mimic strokes, but detailed information about patients is limited.
  • A systematic review of 39 articles identified 41 patients with TmMS, showing that the majority were diagnosed with multiple sclerosis variants (vMS) or inflammatory demyelinating variants (vInf).
  • vInf cases exhibited more severe neurological decline and higher fatality rates compared to vMS, indicating the need for tailored treatments and closer monitoring for those with vInf.
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Background: Spontaneous thrombosis of a developmental venous abnormality (DVA) is a rare complication associated with hypercoagulability. The objective of this case report is to describe an association between DVA thrombosis and mild coronavirus disease 2019 (COVID-19) infection in a vaccinated patient.

Observations: A 28-year-old male with hypertension presented with severe headache and left-sided hemiparesis.

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Objective: Overexpression of tissue-nonspecific alkaline phosphatase (TNAP) in endothelium leads to arterial calcification in mice. The purpose of this study was to examine the effect of elevated endothelial TNAP on coronary atherosclerosis. In addition, we aimed to examine endogenous TNAP activity in human myocardium.

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Anthropometric, functional, and long-distance x-ray examinations of 26 subjects with normal occlusion (14 women and 12 men aged 20-27 years) were carried out in order to define the topographic and anatomical criteria for repair of maxillofacial harmony in case of lost occlusive checkpoints. Basic topographic and anatomical criteria of repair of the maxillofacial system in patients with lost occlusion checkpoints (level of position and direction of occlusion surface in the facial skull) were defined on the basis of long-distance roentgenograms of the head in the lateral projection. Individually determined occlusion surface is the key to repair of morphofunctional harmony of the maxillofacial system in patients with abnormalities complicated by decreased height of the lower segment of the face.

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Anthropometric, functional, and teleroentgenographic examinations were carried out in 26 subjects aged 20-27 years with functional occlusion. Correlation of occlusion plane direction (OcP) with respect to the Frankfurt horizontal line (FH) and the dental, gnathic, and soft tissue parameters of the head and maxillofacial muscular functions was studied. The angle formed by the Frankfurt horizontal line and occlusion plate (FH-OcP) depends on the anthropometric angular and linear osseous parameters of the facial skull and soft tissue parameters of the face and with the functional status and coordination activity of maxillofacial muscles antagonists and synergists.

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Computer-aided milling of ceramic insertions helped more effectively repair the masticatory surface of teeth, minimize the incidence of errors, rule out the laboratory stage of making the insertions and the technological errors made at this stage, retain physical and mechanical characteristics of ceramics, optimize marginal adherence of the insertion to the tooth, retain the height of the lower part of the face, and thus prevent the maxillodental dysfunction.

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As demonstrates the investigation of cardiomyocytes of the left cardiac parts performed in 16 practically healthy mature persons died in accidents, the average area of the cells projections in the auricular atria makes 644 +/- 15 mcm2, and the portion of the multinuclear cells--2.27%. In the ventricular wall and in the papillar muscle these parameters are 831 +/- 16, 700 +/- 30 mcm2 and 11.

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Study of the DNA content in nuclei and of the number of polynuclear cardiomyocytes in the left auricula atrii and the left ventricle wall in the operation and biopsy material of patients with mitral valvular disease showed hypertrophy to be accompanied by polyploidization and division of the nuclei as well as division of cardiomyocytes themselves.

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