- ICH GCP
- Реестр клинических исследований США
- Клиническое испытание NCT07610018
Cerebral Microembolization During Pulmonary Vein Isolation: Comparison of Different Pulsed Field Ablation Systems (MICROPFA)
Cerebral Microembolization During Pulmonary Vein Isolation: a Randomized Comparison of Different Pulsed Field Ablation Systems
Обзор исследования
Статус
Условия
Вмешательство/лечение
Подробное описание
This study is designed as a prospective, randomized, parallel-group interventional trial conducted at Clinical Hospital Dubrava, Zagreb, Croatia and University Hospital Center Sisters of Charity, Zagreb, Croatia. The study will include adult patients with paroxysmal or persistent atrial fibrillation who have a clinical indication for catheter ablation with pulmonary vein isolation.
Eligible patients will be randomized using a computer-generated randomization sequence to undergo pulmonary vein isolation with one of the following pulsed field ablation systems: PulseSelect, Varipulse, Farapulse, Sphere-9, or Sphere-360. All procedures will be performed according to standard clinical practice, with continuous periprocedural anticoagulation in accordance with current guidelines.
Cerebral microembolization will be assessed using transcranial Doppler. The examination will be performed immediately before the ablation procedure and repeated after the procedure. The presence and number of microembolic signals will be recorded. This will allow assessment of changes in microembolic signal burden within each group and comparison of these changes between different pulsed field ablation systems.
Demographic, clinical, and procedural data will be collected, including age, sex, type of atrial fibrillation, comorbidities, procedure duration, number of ablation applications, and procedural complications. The study will also record procedure-related clinical neurological events.
The primary outcome will be the difference in the change in the number of microembolic signals before and after the procedure, expressed as ΔMES, between the different pulsed field ablation systems. Secondary outcomes will include within-group changes in microembolic signal burden, incidence of new microembolic signals after the procedure, association between procedural parameters and ΔMES, and occurrence of procedure-related neurological events.
Тип исследования
Регистрация (Оцененный)
Фаза
- Непригодный
Контакты и местонахождение
Контакты исследования
- Имя: Ivan Zeljković, PhD,MD
- Номер телефона: +385917823289
- Электронная почта: ivanzeljkov@gmail.com
Учебное резервное копирование контактов
- Имя: Mihovil Santini, MD
- Номер телефона: +385958101778
- Электронная почта: 023miho@gmail.com
Места учебы
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-
-
Zagreb, Хорватия, 10000
- UH Dubrava
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Главный следователь:
- Ivan Zeljković, MD, Phd
-
Младший исследователь:
- Mihovil Santini, MD
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Zagreb, Хорватия, 10000
- University Hospital Center Sisters of Charity, Zagreb, Croatia
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Критерии участия
Критерии приемлемости
Возраст, подходящий для обучения
- Взрослый
- Пожилой взрослый
Принимает здоровых добровольцев
Описание
Inclusion Criteria:
- Age 18 years or older
- Paroxysmal or persistent atrial fibrillation
- Indication for catheter ablation with pulmonary vein isolation
- Feasibility of transcranial Doppler assessment
- Signed informed consent
Exclusion Criteria:
- Recent stroke or transient ischemic attack
- Significant cerebrovascular disease preventing reliable transcranial Doppler assessment
- Severe valvular or structural heart disease
- Pregnancy or breastfeeding
- Inability to receive anticoagulation
Учебный план
Как устроено исследование?
Детали дизайна
- Основная цель: Уход
- Распределение: Рандомизированный
- Интервенционная модель: Параллельное назначение
- Маскировка: Нет (открытая этикетка)
Оружие и интервенции
Группа участников / Армия |
Вмешательство/лечение |
|---|---|
|
Активный компаратор: PulseSelect PFA
Participants randomized to this arm will undergo clinically indicated pulmonary vein isolation using the PulseSelect pulsed field ablation system.
Cerebral microembolic signals will be assessed by transcranial Doppler before and after the procedure.
|
Pulmonary vein isolation will be performed using the PulseSelect pulsed field ablation system in patients with paroxysmal or persistent atrial fibrillation undergoing clinically indicated catheter ablation.
Cerebral microembolic signals will be assessed by transcranial Doppler before and after the procedure.
|
|
Активный компаратор: Varipulse PFA
Participants randomized to this arm will undergo clinically indicated pulmonary vein isolation using the Varipulse pulsed field ablation system.
Cerebral microembolic signals will be assessed by transcranial Doppler before and after the procedure.
|
Pulmonary vein isolation will be performed using the Varipulse pulsed field ablation system in patients with paroxysmal or persistent atrial fibrillation undergoing clinically indicated catheter ablation.
Cerebral microembolic signals will be assessed by transcranial Doppler before and after the procedure.
|
|
Активный компаратор: Farapulse PFA
Participants randomized to this arm will undergo clinically indicated pulmonary vein isolation using the Farapulse pulsed field ablation system.
Cerebral microembolic signals will be assessed by transcranial Doppler before and after the procedure.
|
Pulmonary vein isolation will be performed using the Farapulse pulsed field ablation system in patients with paroxysmal or persistent atrial fibrillation undergoing clinically indicated catheter ablation.
Cerebral microembolic signals will be assessed by transcranial Doppler before and after the procedu
|
|
Активный компаратор: Sphere-9 PFA
Participants randomized to this arm will undergo clinically indicated pulmonary vein isolation using the Sphere-9 pulsed field ablation system.
Cerebral microembolic signals will be assessed by transcranial Doppler before and after the procedure.
|
Pulmonary vein isolation will be performed using the Sphere-9 pulsed field ablation system in patients with paroxysmal or persistent atrial fibrillation undergoing clinically indicated catheter ablation.
Cerebral microembolic signals will be assessed by transcranial Doppler before and after the procedure.
|
|
Активный компаратор: Sphere-360 PFA
Participants randomized to this arm will undergo clinically indicated pulmonary vein isolation using the Sphere-360 pulsed field ablation system.
Cerebral microembolic signals will be assessed by transcranial Doppler before and after the procedure
|
Pulmonary vein isolation will be performed using the Sphere-360 pulsed field ablation system in patients with paroxysmal or persistent atrial fibrillation undergoing clinically indicated catheter ablation.
Cerebral microembolic signals will be assessed by transcranial Doppler before and after the procedure
|
Что измеряет исследование?
Первичные показатели результатов
Мера результата |
Мера Описание |
Временное ограничение |
|---|---|---|
|
Change in microembolic signal burden after pulmonary vein isolation
Временное ограничение: During procedure
|
Difference in the number of cerebral microembolic signals detected by transcranial Doppler before and after pulmonary vein isolation, expressed as ΔMES, compared between the different pulsed field ablation systems.
|
During procedure
|
Вторичные показатели результатов
Мера результата |
Мера Описание |
Временное ограничение |
|---|---|---|
|
Within-group change in microembolic signal burden
Временное ограничение: During procedure
|
Change in the number of cerebral microembolic signals detected by transcranial Doppler before and after pulmonary vein isolation within each pulsed field ablation system group.
|
During procedure
|
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Incidence of new microembolic signals after ablation
Временное ограничение: Immediately after the ablation procedure
|
Proportion of participants with newly detected cerebral microembolic signals on transcranial Doppler after pulmonary vein isolation.
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Immediately after the ablation procedure
|
|
Procedure-related clinical neurological events
Временное ограничение: From the start of the ablation procedure through 72 hours after the procedure
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Occurrence of clinically evident neurological events related to the ablation procedure, including stroke or transient ischemic attack.
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From the start of the ablation procedure through 72 hours after the procedure
|
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Association between procedure duration and ΔMES
Временное ограничение: During procedure
|
Association between total procedure duration and the change in cerebral microembolic signal burden before and after pulmonary vein isolation.
|
During procedure
|
|
Association between number of ablation applications and ΔMES
Временное ограничение: During procedure
|
Association between the number of pulsed field ablation applications delivered during pulmonary vein isolation and the change in cerebral microembolic signal burden before and after the procedure.
|
During procedure
|
Соавторы и исследователи
Даты записи исследования
Изучение основных дат
Начало исследования (Оцененный)
Первичное завершение (Оцененный)
Завершение исследования (Оцененный)
Даты регистрации исследования
Первый отправленный
Впервые представлено, что соответствует критериям контроля качества
Первый опубликованный (Действительный)
Обновления учебных записей
Последнее опубликованное обновление (Действительный)
Последнее отправленное обновление, отвечающее критериям контроля качества
Последняя проверка
Дополнительная информация
Термины, связанные с этим исследованием
Ключевые слова
Дополнительные соответствующие термины MeSH
Другие идентификационные номера исследования
- 2026/0423-11
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Информация о лекарствах и устройствах, исследовательские документы
Изучает лекарственный продукт, регулируемый FDA США.
Изучает продукт устройства, регулируемый Управлением по санитарному надзору за качеством пищевых продуктов и медикаментов США.
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