- ICH GCP
- Реестр клинических исследований США
- Клиническое испытание NCT03327610
Selecting the Best Ventilator Hyperinflation Settings (VHI1)
Selecting the Best Ventilator Hyperinflation Settings Based on Physiologic Markers: Randomized Controlled Study
Обзор исследования
Статус
Условия
Вмешательство/лечение
Подробное описание
Background: Ventilator Hyperinflation (VHI) has been shown to be effective in improving respiratory mechanics, secretion removal, and gas exchange in mechanically ventilated patients; however, there are no recommendations on the best ventilator settings to perform the technique. Thus, the aim of this study was to compare six modes of VHI, concerning physiological markers of efficacy and safety criteria, in order to support the optimal VHI settings selection for mechanically ventilated patients.
Methods: In a crossover study, every included mechanically ventilated patient underwent six modes of VHI in a randomized order: Volume Control Continuous Mandatory Ventilation (VC-CMV) with inspiratory flow = 20Lpm (VC-CMV20), VC-CMV with inspiratory flow = 50Lpm (VC-CMV50), Pressure Control Continuous Mandatory Ventilation (PC-CMV) with inspiratory time = 1s. (PC-CMV1), PC-CMV with inspiratory time = 3s. (PC-CMV3), Pressure Support Ventilation (PSV) with cycling off = 10% of peak inspiratory flow (PSV10), and PSV with cycling off = 25% of peak inspiratory flow (PSV25). The maximum expansion (tidal volume), expiratory flow bias criteria (inspiratory and expiratory flow patterns), over-distension (alveolar pressure), asynchronies and hemodynamic variables (mean arterial pressure and heart rate) were assessed during the interventions.
Тип исследования
Регистрация (Действительный)
Фаза
- Непригодный
Критерии участия
Критерии приемлемости
Возраст, подходящий для обучения
Принимает здоровых добровольцев
Полы, имеющие право на обучение
Описание
Inclusion Criteria:
- Patients under mechanical ventilation for more than 48h
Exclusion Criteria:
- mucus hypersecretion (defined as the need for suctioning < 2-h intervals),
- absence of respiratory drive,
- atelectasis,
- severe bronchospasm,
- positive end expiratory pressure > 10cmH2O,
- PaO2-FiO2 relationship < 150,
- mean arterial pressure < 60mmHg,
- inotrope requirement equivalent to >15 ml/h total of adrenaline and noradrenalin,
- intracranial pressure > 20mmHg
Учебный план
Как устроено исследование?
Детали дизайна
- Основная цель: Уход
- Распределение: Рандомизированный
- Интервенционная модель: Назначение кроссовера
- Маскировка: Одинокий
Оружие и интервенции
Группа участников / Армия |
Вмешательство/лечение |
|---|---|
|
Без вмешательства: BASELINE
The subjects were kept in their current ventilatory mode.
|
|
|
Экспериментальный: VC-CMV20
Application of a ventilator hyperinflation intervention with Volume Control Continuous Mandatory Ventilation (VC-CMV) with an inspiratory flow of 20Lpm.
|
Application of a ventilator hyperinflation intervention with Volume Control Continuous Mandatory Ventilation (VC-CMV).
The inspiratory flow was set at 20Lpm and the tidal volume was increased in steps of 200mL until the peak airway pressure of 40cmH2O was achieved.
After achieving the target pressure, this ventilatory regimen lasted 15 minutes.
Positive end expiratory pressure and the inspired oxygen fraction were not modified.
|
|
Экспериментальный: VC-CMV50
Application of a ventilator hyperinflation intervention with Volume Control Continuous Mandatory Ventilation (VC-CMV) with an inspiratory flow of 50Lpm.
|
Application of a ventilator hyperinflation intervention with Volume Control Continuous Mandatory Ventilation (VC-CMV).
The inspiratory flow was set at 50Lpm and the tidal volume was increased in steps of 200mL until the peak airway pressure of 40cmH2O was achieved.
After achieving the target pressure, this ventilatory regimen lasted 15 minutes.
Positive end expiratory pressure and the inspired oxygen fraction were not modified.
|
|
Экспериментальный: PC-CMV1
Application of a ventilator hyperinflation intervention with Pressure Control Continuous Mandatory Ventilation (PC-CMV1) with an inspiratory time of 1 second.
|
Application of a ventilator hyperinflation intervention with Pressure Control Continuous Mandatory Ventilation (PC-CMV1).
The inspiratory time was set at 1 second and the pressure control was increased until a peak pressure of 40cmH2O was achieved.
After achieving the target pressure, this ventilatory regimen lasted 15 minutes.
Positive end expiratory pressure and the inspired oxygen fraction were not modified.
|
|
Экспериментальный: PC-CMV3
Application of a ventilator hyperinflation intervention with Pressure Control Continuous Mandatory Ventilation (PC-CMV1) with an inspiratory time of 3 seconds.
|
Application of a ventilator hyperinflation intervention with Pressure Control Continuous Mandatory Ventilation (PC-CMV1).
The inspiratory time was set at 3 seconds and the pressure control was increased until a peak pressure of 40cmH2O was achieved.
After achieving the target pressure, this ventilatory regimen lasted 15 minutes.
Positive end expiratory pressure and the inspired oxygen fraction were not modified.
|
|
Экспериментальный: PSV10
Application of a ventilator hyperinflation intervention with Pressure Support Ventilation (PSV) with a cycling off of 10% of peak inspiratory flow.
|
Application of a ventilator hyperinflation intervention with Pressure Support Ventilation (PSV).
The cycling off was set at 10% of peak inspiratory flow and the pressure support was increased until a peak pressure of 40cmH2O was achieved.
After achieving the target pressure, this ventilatory regimen lasted 15 minutes.
Positive end expiratory pressure and the inspired oxygen fraction were not modified.
|
|
Экспериментальный: PSV25
Application of a ventilator hyperinflation intervention with Pressure Support Ventilation (PSV) with a cycling off of 25% of peak inspiratory flow.
|
Application of a ventilator hyperinflation intervention with Pressure Support Ventilation (PSV).
The cycling off was set at 25% of peak inspiratory flow and the pressure support was increased until a peak pressure of 40cmH2O was achieved.
After achieving the target pressure, this ventilatory regimen lasted 15 minutes.
Positive end expiratory pressure and the inspired oxygen fraction were not modified.
|
Что измеряет исследование?
Первичные показатели результатов
Мера результата |
Мера Описание |
Временное ограничение |
|---|---|---|
|
Peak inspiratory to expiratory flow ratio
Временное ограничение: Ten minutes after the onset of intervention.
|
Dichotomous variable, defined as achieving a peak inspiratory flow rate (PIFR) less than 90% of the peak expiratory flow rate (PEFR)
|
Ten minutes after the onset of intervention.
|
|
Peak expiratory flow higher than 40 Lpm
Временное ограничение: Ten minutes after the onset of intervention.
|
Dichotomous variable, defined as achieving a PEFR higher than 40 l/min
|
Ten minutes after the onset of intervention.
|
|
Difference between peak inspiratory and expiratory flows.
Временное ограничение: Ten minutes after the onset of intervention.
|
Dichotomous variable, defined as achieving a difference higher than 17Lpm.
|
Ten minutes after the onset of intervention.
|
|
Pulmonary expansion
Временное ограничение: Ten minutes after the onset of intervention.
|
Percentage of tidal volume above the normal tidal volume (estimated as 6mL/kg).
|
Ten minutes after the onset of intervention.
|
Вторичные показатели результатов
Мера результата |
Мера Описание |
Временное ограничение |
|---|---|---|
|
Mean arterial pressure
Временное ограничение: Ten minutes after the onset of intervention.
|
Mean arterial pressure verified using the multi-parameter monitor.
|
Ten minutes after the onset of intervention.
|
|
Heart Rate
Временное ограничение: Ten minutes after the onset of intervention.
|
Heart rate verified using the multi-parameter monitor.
|
Ten minutes after the onset of intervention.
|
Соавторы и исследователи
Следователи
- Учебный стул: FERNANDO S GUIMARAES, PhD, Centro Universitário Augusto Motta
Публикации и полезные ссылки
Общие публикации
- Berney S, Denehy L. A comparison of the effects of manual and ventilator hyperinflation on static lung compliance and sputum production in intubated and ventilated intensive care patients. Physiother Res Int. 2002;7(2):100-8. doi: 10.1002/pri.246.
- Lemes DA, Zin WA, Guimaraes FS. Hyperinflation using pressure support ventilation improves secretion clearance and respiratory mechanics in ventilated patients with pulmonary infection: a randomised crossover trial. Aust J Physiother. 2009;55(4):249-54. doi: 10.1016/s0004-9514(09)70004-2.
- Thomas PJ. The effect of mechanical ventilator settings during ventilator hyperinflation techniques: a bench-top analysis. Anaesth Intensive Care. 2015 Jan;43(1):81-7. doi: 10.1177/0310057X1504300112.
- Ntoumenopoulos G, Shannon H, Main E. Do commonly used ventilator settings for mechanically ventilated adults have the potential to embed secretions or promote clearance? Respir Care. 2011 Dec;56(12):1887-92. doi: 10.4187/respcare.01229. Epub 2011 Jun 17.
- Anderson A, Alexanders J, Sinani C, Hayes S, Fogarty M. Effects of ventilator vs manual hyperinflation in adults receiving mechanical ventilation: a systematic review of randomised clinical trials. Physiotherapy. 2015 Jun;101(2):103-10. doi: 10.1016/j.physio.2014.07.006. Epub 2014 Oct 6.
- Davies JD, Senussi MH, Mireles-Cabodevila E. Should A Tidal Volume of 6 mL/kg Be Used in All Patients? Respir Care. 2016 Jun;61(6):774-90. doi: 10.4187/respcare.04651.
- de Wit M. Monitoring of patient-ventilator interaction at the bedside. Respir Care. 2011 Jan;56(1):61-72. doi: 10.4187/respcare.01077.
Полезные ссылки
Даты записи исследования
Изучение основных дат
Начало исследования (Действительный)
Первичное завершение (Действительный)
Завершение исследования (Действительный)
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
Дополнительные соответствующие термины MeSH
Другие идентификационные номера исследования
- VHI1
Планирование данных отдельных участников (IPD)
Планируете делиться данными об отдельных участниках (IPD)?
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.
Эта информация была получена непосредственно с веб-сайта clinicaltrials.gov без каких-либо изменений. Если у вас есть запросы на изменение, удаление или обновление сведений об исследовании, обращайтесь по адресу register@clinicaltrials.gov. Как только изменение будет реализовано на clinicaltrials.gov, оно будет автоматически обновлено и на нашем веб-сайте. .
Клинические исследования VC-CMV20
-
ViaCyteCalifornia Institute for Regenerative Medicine (CIRM)ПрекращеноСахарный диабет 1 типаКанада, Соединенные Штаты
-
ViaCyteПрекращеноДиабет 1 типаСоединенные Штаты
-
VA Office of Research and DevelopmentЕще не набираютХроническое обструктивное заболевание легкихСоединенные Штаты
-
Sunnybrook Health Sciences CentreCanadian Initiative for Outcomes in Rheumatology CareПрекращено
-
ViaCyteVertex Pharmaceuticals Incorporated; California Institute for Regenerative Medicine... и другие соавторыЗавершенныйСахарный диабет 1 типа с гипогликемиейСоединенные Штаты, Канада, Бельгия
-
ViaCyteЗавершенныйСахарный диабет 1 типаКанада
-
University Medical Center GroningenПрекращено
-
University of North Carolina, Chapel HillNational Institute of Nursing Research (NINR); Duke UniversityЗавершенныйХронический гепатит ССоединенные Штаты
-
University Hospital, CaenОтозванРезистентность к инсулину | Диабет 2 типаФранция
-
Byondis B.V.ЗавершенныйСолидные опухолиНидерланды, Бельгия, Соединенное Королевство, Испания