Titulación de PEEP incremental y disminución por diversas estrategias en sujetos con SDRA: un estudio fisiológico prospectivo (ARDS,PEEP)
Investigación sobre estrategias de ventilación mecánica individualizada de precisión para SDRA guiados por el monitoreo de la tomografía por impedancia eléctrica y la evaluación de las diferencias en la distribución de ventilación y perfusión
Descripción general del estudio
Estado
Estado
Condiciones
Condiciones
Intervención / Tratamiento
Intervención / Tratamiento
Tipo de estudio
Tipo de estudio
Inscripción (Actual)
Inscripción
Contactos y Ubicaciones
Ubicaciones de estudio
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Sichuan
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Chengdu, Sichuan, Porcelana, 610041
- West China Hospital of Sichuan University, Chengdu
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Criterios de participación
Criterio de elegibilidad
Criterio de elegibilidad
Edades elegibles para estudiar
- Adulto
- Adulto Mayor
Acepta Voluntarios Saludables
Método de muestreo
Población de estudio
Descripción
Criterios de inclusión:
- Pacientes intubados y ventilados mecánicos en la UCI dentro de las 48 horas
- Tener más de 18 años
- Con SDRA MODERADO-SEVERE (PAO2 /FIO2, 200 mm Hg)
Criterios de exclusión:
- Enfermedades pulmonares obstructivas crónicas graves
- Bulla pulmonar (> 1 cm) o neumotórax o neumomediasto o enfisema subcutáneo
- Embarazo
- BMI≥35 kg/m2
- Sospecha de hemorragia vascular pulmonar
- Perturbación de la conciencia o hipertensión intracraneal
- Disfunción cardíaca severa (New York Heart Association Clase III o IV, Síndrome Coronario agudo o taquiaritmia ventricular persistente), shock cardiogénico o después de una cirugía cardíaca importante
- Inestabilidad hemodinámica (es decir, presión arterial media [MAP] <60 mm Hg a pesar del uso de vasopresores
- El equipo médico considerando cortos períodos de alta presión para ser inseguros
- Contraindicaciones para la colocación de catéteres de presión esofágica (por ejemplo, varix esofágica o fractura de la base del cráneo)
- Contraindicaciones para el monitoreo de EIT (incluido el marcapasos o enfermedades cutáneas que limitan la colocación del electrodo)
- Etapa agonal o etapas finales de enfermedades
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
¿Qué mide el estudio?
Medidas de resultado primarias
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
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the selected PEEP values
Periodo de tiempo: through study completion, an average of 1 year
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1. Method-specific selected PEEP values
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through study completion, an average of 1 year
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Medidas de resultado secundarias
Medidas de resultado secundarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
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SpO2/FiO2 at each selected PEEP
Periodo de tiempo: baseline, within 5 minutes after the PV-tool measurement, and within 5 minutes after each increment and decrement of PEEP during the PEEP adjustment process
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SpO2/FiO2 measured at each selected PEEP.
This study will separately measure peripheral oxygen saturation (SpO₂, unit: %) and fraction of inspired oxygen (FiO₂, unit: %).
Because both measurements share the same unit (%), they will not be reported as separate outcome measures.
Instead, they will be aggregated into a single reported value: the SpO₂/FiO₂ ratio (dimensionless).
At each selected positive end-expiratory pressure (PEEP) level, the ratio will be calculated as S/F = SpO₂ (%) ÷ FiO₂ (%), and this ratio will be recorded as the final outcome measure.
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baseline, within 5 minutes after the PV-tool measurement, and within 5 minutes after each increment and decrement of PEEP during the PEEP adjustment process
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respiratory system compliance value at each selected PEEP
Periodo de tiempo: baseline, within 5 minutes after the PV-tool measurement, and within 5 minutes after each increment and decrement of PEEP during the PEEP adjustment process
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This study will directly record the respiratory system compliance value as measured and displayed by the ventilator (unit: mL/cmH₂O) at each selected PEEP.
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baseline, within 5 minutes after the PV-tool measurement, and within 5 minutes after each increment and decrement of PEEP during the PEEP adjustment process
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plateau pressure at each selected PEEP
Periodo de tiempo: baseline, within 5 minutes after the PV-tool measurement, and within 5 minutes after each increment and decrement of PEEP during the PEEP adjustment process
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At each selected positive end-expiratory pressure (PEEP) level, plateau pressure will be directly recorded from the ventilator after performing an inspiratory hold maneuver.
This value is displayed by the ventilator in cmH₂O
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baseline, within 5 minutes after the PV-tool measurement, and within 5 minutes after each increment and decrement of PEEP during the PEEP adjustment process
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Driving Pressure at each selected PEEP
Periodo de tiempo: baseline, within 5 minutes after the PV-tool measurement, and within 5 minutes after each increment and decrement of PEEP during the PEEP adjustment process
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At each selected positive end-expiratory pressure (PEEP) level, plateau pressure (Pplat, unit: cmH₂O) will be measured via the ventilator, and the corresponding PEEP value (unit: cmH₂O) will be recorded.
Driving pressure (ΔP) is calculated as the difference between the two: ΔP = Pplat - PEEP (unit: cmH₂O).
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baseline, within 5 minutes after the PV-tool measurement, and within 5 minutes after each increment and decrement of PEEP during the PEEP adjustment process
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End-inspiratory Transpulmonary Pressure (PTPi) at each selected PEEP
Periodo de tiempo: baseline, within 5 minutes after the PV-tool measurement, and within 5 minutes after each increment and decrement of PEEP during the PEEP adjustment process
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After placement of an esophageal pressure catheter, the ventilator will monitor esophageal pressure (Pes) and airway pressure.
At each selected positive end-expiratory pressure (PEEP) level, an end-inspiratory hold maneuver will be performed.
The end-inspiratory transpulmonary pressure (PTPi) is calculated as the difference between the airway plateau pressure (Pplat) measured during the hold and the corresponding esophageal pressure (Pes): PTPi = Pplat - Pes (unit: cmH₂O).
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baseline, within 5 minutes after the PV-tool measurement, and within 5 minutes after each increment and decrement of PEEP during the PEEP adjustment process
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End-expiratory Transpulmonary Pressure (PTPe) at each selected PEEP
Periodo de tiempo: baseline, within 5 minutes after the PV-tool measurement, and within 5 minutes after each increment and decrement of PEEP during the PEEP adjustment process
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After placement of an esophageal pressure catheter, the ventilator will monitor esophageal pressure (Pes) and airway pressure.
At each selected positive end-expiratory pressure (PEEP) level, an end-expiratory hold maneuver will be performed.
The end-inspiratory transpulmonary pressure (PTPe) is calculated as the difference between the PEEP measured during the hold and the corresponding esophageal pressure (Pes): PTPe = PEEP - Pes (unit: cmH₂O).
This calculated value is the single reported outcome measure
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baseline, within 5 minutes after the PV-tool measurement, and within 5 minutes after each increment and decrement of PEEP during the PEEP adjustment process
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transpulmonary driving pressure at each selected PEEP
Periodo de tiempo: baseline, within 5 minutes after the PV-tool measurement, and within 5 minutes after each increment and decrement of PEEP during the PEEP adjustment process
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After placement of an esophageal pressure catheter, the ventilator will monitor transpulmonary pressures.
At each selected PEEP level, end-inspiratory transpulmonary pressure (PTPi) and end-expiratory transpulmonary pressure (PTPe) are obtained during inspiratory and expiratory hold maneuvers, respectively.
Both are measured in cmH₂O.
Transpulmonary driving pressure is calculated as the difference: ΔPtp = PTPi - PTPe (unit: cmH₂O).
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baseline, within 5 minutes after the PV-tool measurement, and within 5 minutes after each increment and decrement of PEEP during the PEEP adjustment process
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EIT-derived Regional Ventilation Parameters at each selected PEEP level
Periodo de tiempo: baseline, within 5 minutes after the PV-tool measurement, and within 5 minutes after each increment and decrement of PEEP during the PEEP adjustment process
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Using electrical impedance tomography (EIT), the lung is divided into four regions of interest (ROI I to ROI IV) from ventral to dorsal.
For each ROI, the percentage of tidal impedance variation relative to total tidal impedance variation is recorded (% of total).
unit: cmH₂O
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baseline, within 5 minutes after the PV-tool measurement, and within 5 minutes after each increment and decrement of PEEP during the PEEP adjustment process
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the center of ventilation (COV) at each selected PEEP level
Periodo de tiempo: baseline, within 5 minutes after the PV-tool measurement, and within 5 minutes after each increment and decrement of PEEP during the PEEP adjustment process
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the center of ventilation (COV) is calculated as the position of the ventilation center along the ventral-dorsal axis, expressed as a percentage (0% = ventral, 100% = dorsal).
this parameter is measured in %
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baseline, within 5 minutes after the PV-tool measurement, and within 5 minutes after each increment and decrement of PEEP during the PEEP adjustment process
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CL HP% (overdistension region) at each selected PEEP level
Periodo de tiempo: baseline, within 5 minutes after the PV-tool measurement, and within 5 minutes after each increment and decrement of PEEP during the PEEP adjustment process
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Using electrical impedance tomography (EIT),based on regional compliance analysis,CL HP% represent the percentage of lung regions showing a decrease in compliance at high PEEP due to overdistension (unit: %).
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baseline, within 5 minutes after the PV-tool measurement, and within 5 minutes after each increment and decrement of PEEP during the PEEP adjustment process
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CL LP% (collapse region) at selected PEEP
Periodo de tiempo: baseline, within 5 minutes after the PV-tool measurement, and within 5 minutes after each increment and decrement of PEEP during the PEEP adjustment process
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Using electrical impedance tomography (EIT),based on regional compliance analysis,CL LP% represent the percentage of lung regions showing a decrease in compliance at low PEEP due to collapse (unit: %).
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baseline, within 5 minutes after the PV-tool measurement, and within 5 minutes after each increment and decrement of PEEP during the PEEP adjustment process
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Colaboradores e Investigadores
Patrocinador
Patrocinador
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio (Actual)
Inicio del estudio
Finalización primaria (Actual)
Finalización primaria
Finalización del estudio (Actual)
Finalización del estudio
Fechas de registro del estudio
Enviado por primera vez
Enviado por primera vez
Primero enviado que cumplió con los criterios de control de calidad
Primero enviado que cumplió con los criterios de control de calidad
Publicado por primera vez (Actual)
Publicado por primera vez
Actualizaciones de registros de estudio
Última actualización publicada (Actual)
Última actualización publicada
Última actualización enviada que cumplió con los criterios de control de calidad
Última actualización enviada que cumplió con los criterios de control de calidad
Última verificación
Última verificación
Más información
Términos relacionados con este estudio
Otros números de identificación del estudio
Otros números de identificación del estudio
- PEEP Titration
- 2024YFFK0329 (Otro número de subvención/financiamiento: Sichuan Science and Technology Program)
- 2024ZD0530000 (Otro número de subvención/financiamiento: Noncommunicable Chronic Diseases-National Science and Technology Major Project)
Plan de datos de participantes individuales (IPD)
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Información sobre medicamentos y dispositivos, documentos del estudio
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