Comparison of Three Pre-oxygenation Strategies
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: Preoxygenation.
- Кому может быть актуально
- Состояния в реестре: Emergencies, Anesthesia. Базовые параметры: от 6 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
- Италия
- 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
Comparison of Three Pre-oxygenation Strategies for Prehospital Anaesthesia Induction in Children, Normal Weight Adults and Obese Adults
Обзор
Study objective: Comparing the efficacy of three different preoxygenation strategies, i.e. non-rebreather face mask (NRM), bag-valve-mask (BVM) with and BVM without additional positive end-expiratory pressure (PEEP) in three subgroups of spontaneously breathing volunteers. Study endpoints Primary Endpoint: Difference in expiratory oxygen concentration (FeO2) at the end of the 3 min preoxygenation sessions. Secondary endpoints: * Difference in Oxygen Reserve Index (ORi) at the end of the 3 min preoxygenation sessions. * Changes in regional ventilation from baseline to 1.5 min and 3 min into the preoxygenation sessions, assessed using electrical impedance tomography (EIT) * Time to reaching an Oxygen Reserve Index (ORi) ≥ 0.5 * Time to reaching an Oxygen Reserve Index (ORi) =1 * Time to Oxygen Reserve Index (ORi) back to baseline after the 3 min preoxygenation sessions. Number of participants 15 participants per subgroup, i.e. 45 participants in total. Inclusion criteria * Normal-weight adults (body mass index, BMI 18.5-24.9 kg/m2) with an "American Society of Anesthesiologists Physical Status Classification System (ASA) " score of I or II * Adults with a BMI 25-39.9 kg/m2 with and ASA score \<3 * Healthy (ASA I) children aged 6-12 years Exclusion criteria ASA 3, Age \< 6 and age 12-18, pregnant women, missing informed consent, signs and symptoms of an acute respiratory illness on the study day. After informed consent and a medical check-up, baseline measurements will be done for 10 minutes (peripheral oxygen saturation SpO2, ORI, regional ventilation). Then the participants will undergo 3 different preoxygenation sessions with the 3 interfaces (i.e. non-rebreather facemask with reservoir and a bag-valve-mask with and without PEEP) in a randomized order and a 20 min washout between the sessions. Each preoxygenation session is conducted in a supine position and will be proceeded until the measured FeO2 (end expiratory O2 fraction) reaches 90% or up to a maximum time of 3 min. Afterwards 10 min of SpO2, ORI and regional ventilation measurements will follow.
Вмешательства
- Другое Preoxygenation
Preoxygenation of volunteers over 3 minutes
Первичные конечные точки
- Difference in expiratory oxygen concentration (FeO2) at the end of the 3 min preoxygenation sessions. [Срок оценки: After 3 minutes of preoxygenation]
Вторичные конечные точки (5)
- Difference in Oxygen Reserve Index (ORi) at the end of the 3 min preoxygenation sessions. [Срок оценки: After 3 minutes of preoxygenation]
- Changes in regional ventilation from baseline to 1.5 min and 3 min into the preoxygenation sessions, assessed using electrical impedance tomography (EIT) [Срок оценки: After 1.5 and 3 minutes of preoxygenation]
- Time to reaching an Oxygen Reserve Index (ORi) ≥ 0.5 [Срок оценки: Variable, timepoint during the 3 min preoxygenation session]
- Time to reaching an Oxygen Reserve Index (ORi) =1 [Срок оценки: Variable, timepoint during the 3 min preoxygenation session]
- Time to Oxygen Reserve Index (ORi) back to baseline after the 3 min preoxygenation sessions. [Срок оценки: Washout phase after the 3 min preoxygenation sessions.]
Критерии участия
Критерии включения
- Normal-weight adults (BMI 18.5-24.9 kg/m2) with an "American Society of Anesthesiologists Physical Status Classification System (ASA) " score of I or II
- Adults with a BMI 25-39.9 kg/m2 with and ASA score <3
- Healthy (ASA I) children aged 6-12 years
Критерии исключения
- ASA 3
- Age < 6 and age 12-18
- pregnant women
- missing informed consent
- signs and symptoms of an acute respiratory illness on the study day
Критерии приведены из реестра в оригинале (на английском). Окончательную оценку соответствия проводит исследовательский центр.
Здоровые добровольцы: Да
Дизайн исследования
- Распределение
- Рандомизированное
- Модель
- Перекрёстный дизайн
- Маскирование
- Открытое
- Основная цель
- Другое
Центры проведения
Италия · 1 центр
- TerraXCube — Bolzano
Публикации
- Roveri G, Camporesi A, Hofer A, Kahlen S, Breidt F, Rauch S. Preoxygenation With and Without Positive End-Expiratory Pressure in Lung-Healthy Volunteers: A Randomized Clinical Trial. JAMA Netw Open. 2025 May 1;8(5):e2511569. doi: 10.1001/jamanetworkopen.2025.11569. PMID 40392551
Идентификаторы
NCT: NCT06370689 · PRE-OX