Low-frequency Electrical Stimulation for Cognitive Enhancement in Atrial Fibrillation
Ориентир для пациента и семьи
Простыми словами
Автоматическая сводка по структурированным данным реестра. Она помогает сориентироваться, но не заменяет официальный протокол или оценку врача.
- Что изучают
- В протоколе указаны: tVNS.
- Кому может быть актуально
- Состояния в реестре: Cognitive Function Abnormal, Atrial Fibrillation (AF). Базовые параметры: 60 лет — 90 лет · Все.
- Что важно проверить
- Возраст, диагноз и пол — только базовые ориентиры. Предыдущее лечение, анализы и другие обязательные условия указаны ниже в критериях участия.
- Где проводится
- Россия
- Следующий шаг
- Сохраните исследование, покажите его лечащему врачу и уточните актуальный статус у исследовательского центра. Расходы, документы и поездка →
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Официальное название
Effect of Low-frequency Electrical Stimulation of the Auricular Branch of the Vagus Nerve on Cognitive Function in Patients With Atrial Fibrillation
Обзор
Cognitive function in patients with atrial fibrillation (AF) is often impaired due to the complex influence of various factors (cerebral hypoperfusion, neurodegeneration, microemboli, hypertension, chronic inflammation). This leads to impairment of cognitive functions, including attention, memory, executive functions, and speed of information processing. The search for affordable and safe methods to maintain or improve cognitive function in this group of people is an urgent task of modern medicine. One of the promising approaches is percutaneous low-frequency electrical stimulation of the auricular branch of the vagus nerve (transcutaneous Vagus Nerve Stimulation - tVNS). The auricular (auricular) branch of the vagus nerve is a peripheral branch of the vagus nerve innervating the skin of the auricle in the area of the tragus and the inner part of the external auditory canal. The tVNS engages the sensory fibres of the vagus nerve and thus mimics the sensory input to the brainstem, forming the so-called auriculo-vagal afferent pathway. Since these fibres project directly to the nucleus of the solitary pathway (solitary tract), which, in turn, has direct and indirect projections to the nuclei providing noradrenergic, endorphinergic and serotoninergic fibres in various parts of the brain regulating systemic indices of cardiovascular, respiratory and immunological functions, the organism's response to stimulation of the auricular branch of the vagus nerve is systemic in nature. Stimulation of this nerve can modulate central nervous system (CNS) activity, affecting processes related to memory, attention and emotional state. Mechanisms of action of tVNS include modulation of parasympathetic activity, enhancement of neuroplasticity through increased expression of neurotrophic factors (e.g., BDNF), improvement of cerebral blood circulation, and regulation of neuroinflammation (reduction of proinflammatory cytokines).
Вмешательства
- Устройство tVNS
tVNS will be performed daily after workouts for 60 minutes over a period of 6 months.
Первичные конечные точки
- Dynamics of neural activity of the brain. [Срок оценки: This parameter will be assessed at the beginning of the study (initially) and at the end of the study (6 months) in the active and fictitious stimulation groups.]
Вторичные конечные точки (3)
- Reaction Time (RT) Changes & EEG Correlates [Срок оценки: This parameter will be assessed at the beginning of the study (initially) and at the end of the study (6 months) in the active and fictitious stimulation groups.]
- Attention Level Changes & Error Rates [Срок оценки: This parameter will be assessed at the beginning of the study (initially) and at the end of the study (6 months) in the active and fictitious stimulation groups.]
- Dynamics of the cognitive test MoCA-8 (Montreal Cognitive Assessment). [Срок оценки: This parameter will be assessed at the beginning of the study (initially) and at the end of the study (6 months) in the active and fictitious stimulation groups.]
Критерии участия
Критерии включения
- Age over 60 years,
- Permanent form of AF,
- Severe and mild cognitive impairment (<26 points on the MoCA-8 test),
- The possibility of regular repeat visits for 6 months.
Критерии исключения
- Atrioventricular blockade of 2-3 degree,
- Expressed sinus bradycardia with resting heart rate < 40 bpm
- Any oncological diseases,
- Severe chronic liver and kidney pathology,
- Chronic viral infections.
Критерии приведены из реестра в оригинале (на английском). Окончательную оценку соответствия проводит исследовательский центр.
Здоровые добровольцы: Нет
Дизайн исследования
- Распределение
- Рандомизированное
- Модель
- Параллельные группы
- Маскирование
- Тройное слепое
- Основная цель
- Лечение
Центры проведения
Россия · 2 центра
- Bakulev National Medical Research Center for Cardiovascular Surgery — Moscow
- Neurodynamics and Cognitive Technologies Research Laboratory of the Neuroscience Research — Nizhny Novgorod
Идентификаторы
NCT: NCT07063381 · 0034.2025 · H-465-99_2025-2027