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Effect of Early Extracorporeal Diaphragm Pacing Combined With Tilt Table in Ventilated Patients.

Primary Purpose

Early Mobilization, Critically Ill, Mechanical Ventilation

Status
Not yet recruiting
Phase
Not Applicable
Locations
Study Type
Interventional
Intervention
Extracorporeal Diaphragm Pacing
Tilt Table Verticalization
Conventional Physiotherapy
Sponsored by
Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Early Mobilization

Eligibility Criteria

18 Years - 85 Years (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria: Duration of mechanical ventilation prior to enrollment≤ 72 hours. Expected duration of mechanical ventilation≥72 hours. Participants (or their legal representatives) have signed informed consent. Exclusion Criteria: Pregnancy or breast-feeding. Prone ventilation or current extracorporeal membrane oxygenation. Hemodynamic instability: mean arterial pressure is less than 65 millimeters of mercury (mmHg) or higher than 85 millimeters of mercury (mmHg), heart rate > 150 beats / minute, intravenous use of larger doses of vasopressors (such as dopamine > 10 mg/ (kg· min) or norepinephrine/epinephrine >0.1 mg/ (kg· min)) or aortic balloon counter pulsation; respiratory rate< 5 breaths per minute; Oxygen saturation< 88%. New-onset myocardial ischemia. Unstable cervical spine fracture and spinal cord injury. Deterioration of neurological function, requiring intracranial pressure monitoring and ventricular drainage, or active control of intracranial hypertension. Current neuromuscular block treatment or pre-existing neuromuscular disease or neuromuscular junction disease affecting respiratory muscle (such as myasthenia gravis, Guillain-Barré syndrome, etc.). There are contraindications to diaphragmatic pacing (local skin, tissue incompleteness or infection, chest X-ray examination shows pneumothorax or pleural effusion accounting for 1/3 of bilateral chest cavity). Body mass index (BMI) ⩾40 kg/m2. Known / suspected phrenic nerve palsy. Patients who refuse active treatment or are in the terminal stage of malignant tumors, have an expected life expectancy of < 6 months, etc. Participated in other clinical studies related to mechanical ventilation within 2 months prior to the start of the study.

Sites / Locations

    Arms of the Study

    Arm 1

    Arm 2

    Arm 3

    Arm Type

    Active Comparator

    Experimental

    Experimental

    Arm Label

    Control group

    experimental group 1

    experimental group 2

    Arm Description

    In the control condition, patients received conventional physiotherapy (CPT) according to standard clinic procedures.

    the experimental group uses Extracorporeal Diaphragm Pacing (EDP) on the basis of the control group.

    the experimental group used Extracorporeal Diaphragm Pacing (EDP) combined with Tilt Table Verticalization (TTV) on the basis of the control group.

    Outcomes

    Primary Outcome Measures

    Change from Baseline on Diaphragm Thickening Fraction at Day 4 and Day 7.
    The Diaphragm thickening fraction-DTf (%) was calculated as the difference between end-expiration and end-inspiration divided by end-inspiration × 100.Diaphragm thickening fraction (DTf) less than 20% is a measure of ultrasonographic diaphragmatic dysfunction in patients on mechanical ventilation.

    Secondary Outcome Measures

    Change from Baseline on Ventilation mode at Day 4 and Day 7.
    A ventilator mode is a way of describing how the mechanical ventilator assists the patient with taking a breath.
    Change from Baseline on Positive End-expiratory Pressure (PEEP) at Day 4 and Day 7.
    Positive end-expiratory pressure (PEEP) is the positive pressure that will remain in the airways at the end of the respiratory cycle (end of exhalation) that is greater than the atmospheric pressure in mechanically ventilated patients.
    Change from Baseline on minute ventilation at Day 4 and Day 7.
    It usually refers to the expired amount and can be calculated using the following equation: minute ventilation (VE)= tidal volume (VT) ×respiratory frequency(f)
    Change from Baseline on tidal volume at Day 4 and Day 7.
    Tidal volume is the amount of air that moves in or out of the lungs with each respiratory cycle.
    Change from Baseline on Maximum Inspiratory Pressure (MIP) at Day 4 and Day 7.
    The maximum inspiratory pressures measure the maximal efforts of the respiratory muscles.
    Change from Baseline on airway occlusion pressure (P0.1) at Day 4 and Day 7.
    P0.1 is a parameter for the neuro-muscular activation of the respiratory system, which is an important determinant for the work of breathing.
    Change from Baseline on transdiaphragmatic pressure at Day 4 and Day 7.
    Transdiaphragmatic pressure (Pdi) represents the pressure across the diaphragm, which can be expressed as the difference between abdominal pressure (Pab) and pleural pressure (Ppl):Pdi = Ppl- Pab.
    Change from Baseline on MRC score at Day 4 and Day 7.
    Medical Research Council (MRC)-sum score evaluates global muscle strength. Manual strength of six muscle groups (shoulder abduction, elbow flexion, wrist extension, hip flexion, knee extension, and ankle dorsiflexion) is evaluated on both sides using MRC scale. Summation of scores gives MRC-sum score, ranging from 0 to 60.
    Change from Baseline on Blood oxygen status at Day 4 and Day 7.
    Oxygenation Index = (FiO2× Mean Airway Pressure) / partial pressure of oxygen in arterial blood (PaO2) The oxygenation index is used to assess the intensity of ventilatory support required to maintain oxygenation.

    Full Information

    First Posted
    June 12, 2023
    Last Updated
    July 12, 2023
    Sponsor
    Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University
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    1. Study Identification

    Unique Protocol Identification Number
    NCT05953649
    Brief Title
    Effect of Early Extracorporeal Diaphragm Pacing Combined With Tilt Table in Ventilated Patients.
    Official Title
    Effect of Early Extracorporeal Diaphragm Pacing (EDP) Combined With Tilt Table Verticalization (TTV) on Diaphragm Function in Critically Ill Patients With Mechanical Ventilation: a Randomized Controlled Trial.
    Study Type
    Interventional

    2. Study Status

    Record Verification Date
    May 2023
    Overall Recruitment Status
    Not yet recruiting
    Study Start Date
    August 1, 2023 (Anticipated)
    Primary Completion Date
    May 27, 2024 (Anticipated)
    Study Completion Date
    July 27, 2024 (Anticipated)

    3. Sponsor/Collaborators

    Responsible Party, by Official Title
    Sponsor
    Name of the Sponsor
    Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University

    4. Oversight

    Studies a U.S. FDA-regulated Drug Product
    No
    Studies a U.S. FDA-regulated Device Product
    No
    Data Monitoring Committee
    Yes

    5. Study Description

    Brief Summary
    The aim of this study is to test the effect of 1week of extracorporeal diaphragm pacing (EDP) combined either with or without tilt table verticalization (TTV) on diaphragm function in patients with mechanical ventilation compared to conventional physiotherapy (CPT).
    Detailed Description
    In order to explore whether extracorporeal diaphragm pacing (EDP) combined with tilt table verticalization (TTV) improves diaphragm function in mechanically ventilated patients, the investigators conducted a three-arms randomized controlled trial of 90 ventilated patients in the ICU of a general hospital in the southern China state of Guangzhou. After assessment of inclusion and exclusion criteria, patients were randomly assigned to one of the following three groups: (1) EDP with TTV and with conventional physiotherapy (CPT) (n = 30), (2) EDP without TTV and with CPT (n = 30), and (3) conventional physiotherapy (CPT; n = 30).

    6. Conditions and Keywords

    Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
    Early Mobilization, Critically Ill, Mechanical Ventilation, Diaphragm Dysfunction

    7. Study Design

    Primary Purpose
    Treatment
    Study Phase
    Not Applicable
    Interventional Study Model
    Parallel Assignment
    Masking
    None (Open Label)
    Allocation
    Randomized
    Enrollment
    90 (Anticipated)

    8. Arms, Groups, and Interventions

    Arm Title
    Control group
    Arm Type
    Active Comparator
    Arm Description
    In the control condition, patients received conventional physiotherapy (CPT) according to standard clinic procedures.
    Arm Title
    experimental group 1
    Arm Type
    Experimental
    Arm Description
    the experimental group uses Extracorporeal Diaphragm Pacing (EDP) on the basis of the control group.
    Arm Title
    experimental group 2
    Arm Type
    Experimental
    Arm Description
    the experimental group used Extracorporeal Diaphragm Pacing (EDP) combined with Tilt Table Verticalization (TTV) on the basis of the control group.
    Intervention Type
    Device
    Intervention Name(s)
    Extracorporeal Diaphragm Pacing
    Other Intervention Name(s)
    External Diaphragm Pacing
    Intervention Description
    In the EDP group, a pacer using the extracorporeal diaphragm pacemaker provided by Guangzhou Xueliang Biotechnology Developing Co., Ltd., the pacing electrode is pasted on the body surface closest to the phrenic nerve at the outer edge of the lower end of the sternocleidomastoid muscle under ultrasound guidance, and the auxiliary electrode is placed between the second intercostal of the midline of the clavicle. The intensity of treatment parameters was set from low to high, and the intensity of treatment was increased when the patient could tolerate it, pacing 12-18 times/min at a frequency of 40 hertz (Hz)/30min/time, and performed every 12 hours for a week.
    Intervention Type
    Device
    Intervention Name(s)
    Tilt Table Verticalization
    Other Intervention Name(s)
    Tilt Table Standing, head-up tilt
    Intervention Description
    VitalGo bed (VitalGo Systems Ltd., Fort Lauderdale) is used for verticalization. Verticalization was set to minimum 30°, depending on cardiopulmonary parameters (respiratory rate, heart rate, blood pressure, oxygen saturation), vertical position was gradually increased (in 5° steps) to a maximum of 90°, as long as the above-named cardiopulmonary parameters of the patient remained stable and remain this position for 30 minutes simultaneously with extracorporeal diaphragm pacing for a week.
    Intervention Type
    Other
    Intervention Name(s)
    Conventional Physiotherapy
    Intervention Description
    Patients receive early mobilization, which refers to a series of clinical intervention protocols (such as passive movement or active exercises, etc.) that confers physical benefits at an early period in collaboration with a multidisciplinary team (intensive care physicians, rehabilitation physicians, physical therapists, occupational therapists, respiratory therapists, and nurses). The study intervention take place during working time between 8 a.m. and 17 p.m. Patients of all three study groups receive this rehabilitation program until they transfer out of ICU.
    Primary Outcome Measure Information:
    Title
    Change from Baseline on Diaphragm Thickening Fraction at Day 4 and Day 7.
    Description
    The Diaphragm thickening fraction-DTf (%) was calculated as the difference between end-expiration and end-inspiration divided by end-inspiration × 100.Diaphragm thickening fraction (DTf) less than 20% is a measure of ultrasonographic diaphragmatic dysfunction in patients on mechanical ventilation.
    Time Frame
    Baseline, Day 4 and Day 7.
    Secondary Outcome Measure Information:
    Title
    Change from Baseline on Ventilation mode at Day 4 and Day 7.
    Description
    A ventilator mode is a way of describing how the mechanical ventilator assists the patient with taking a breath.
    Time Frame
    Baseline, Day 4 and Day 7.
    Title
    Change from Baseline on Positive End-expiratory Pressure (PEEP) at Day 4 and Day 7.
    Description
    Positive end-expiratory pressure (PEEP) is the positive pressure that will remain in the airways at the end of the respiratory cycle (end of exhalation) that is greater than the atmospheric pressure in mechanically ventilated patients.
    Time Frame
    Baseline, Day 4 and Day 7.
    Title
    Change from Baseline on minute ventilation at Day 4 and Day 7.
    Description
    It usually refers to the expired amount and can be calculated using the following equation: minute ventilation (VE)= tidal volume (VT) ×respiratory frequency(f)
    Time Frame
    Baseline, Day 4 and Day 7.
    Title
    Change from Baseline on tidal volume at Day 4 and Day 7.
    Description
    Tidal volume is the amount of air that moves in or out of the lungs with each respiratory cycle.
    Time Frame
    Baseline, Day 4 and Day 7.
    Title
    Change from Baseline on Maximum Inspiratory Pressure (MIP) at Day 4 and Day 7.
    Description
    The maximum inspiratory pressures measure the maximal efforts of the respiratory muscles.
    Time Frame
    Baseline, Day 4 and Day 7.
    Title
    Change from Baseline on airway occlusion pressure (P0.1) at Day 4 and Day 7.
    Description
    P0.1 is a parameter for the neuro-muscular activation of the respiratory system, which is an important determinant for the work of breathing.
    Time Frame
    Baseline, Day 4 and Day 7.
    Title
    Change from Baseline on transdiaphragmatic pressure at Day 4 and Day 7.
    Description
    Transdiaphragmatic pressure (Pdi) represents the pressure across the diaphragm, which can be expressed as the difference between abdominal pressure (Pab) and pleural pressure (Ppl):Pdi = Ppl- Pab.
    Time Frame
    Baseline, Day 4 and Day 7.
    Title
    Change from Baseline on MRC score at Day 4 and Day 7.
    Description
    Medical Research Council (MRC)-sum score evaluates global muscle strength. Manual strength of six muscle groups (shoulder abduction, elbow flexion, wrist extension, hip flexion, knee extension, and ankle dorsiflexion) is evaluated on both sides using MRC scale. Summation of scores gives MRC-sum score, ranging from 0 to 60.
    Time Frame
    Baseline, Day 4 and Day 7.
    Title
    Change from Baseline on Blood oxygen status at Day 4 and Day 7.
    Description
    Oxygenation Index = (FiO2× Mean Airway Pressure) / partial pressure of oxygen in arterial blood (PaO2) The oxygenation index is used to assess the intensity of ventilatory support required to maintain oxygenation.
    Time Frame
    Baseline, Day 4 and Day 7.
    Other Pre-specified Outcome Measures:
    Title
    Day 28 mortality
    Description
    Short-term mortality was defined as a date of all-cause death within 28 days of the finishing of the trial.
    Time Frame
    within 28 days of the finishing of the trial.
    Title
    ventilator free days
    Description
    It is defined as a date of no ventilation within 28 days of the start of the trial.
    Time Frame
    within 28 days of the start of the trial
    Title
    Length of stay in ICU
    Description
    The patient's length of stay in the ICU since the beginning of inclusion.
    Time Frame
    up to 28 days.
    Title
    Ratio of short weaning
    Description
    It is defined as the first separation attempt resulted in a termination of the weaning process within 24 hours (successful separation or early death).
    Time Frame
    within 28 days of the start of the trial
    Title
    Duration of control ventilation
    Description
    It is defined as the ventilation mode in which the frequency, tidal volume, and inspiratory time of breathing are controlled by a ventilator because the patient has no spontaneous breathing or very weak spontaneous breathing.
    Time Frame
    within 28 days of the start of the trial
    Title
    Duration of ventilation
    Description
    It is defined as a date of ventilation within 28 days of the start of the trial.
    Time Frame
    within 28 days of the start of the trial

    10. Eligibility

    Sex
    All
    Minimum Age & Unit of Time
    18 Years
    Maximum Age & Unit of Time
    85 Years
    Accepts Healthy Volunteers
    No
    Eligibility Criteria
    Inclusion Criteria: Duration of mechanical ventilation prior to enrollment≤ 72 hours. Expected duration of mechanical ventilation≥72 hours. Participants (or their legal representatives) have signed informed consent. Exclusion Criteria: Pregnancy or breast-feeding. Prone ventilation or current extracorporeal membrane oxygenation. Hemodynamic instability: mean arterial pressure is less than 65 millimeters of mercury (mmHg) or higher than 85 millimeters of mercury (mmHg), heart rate > 150 beats / minute, intravenous use of larger doses of vasopressors (such as dopamine > 10 mg/ (kg· min) or norepinephrine/epinephrine >0.1 mg/ (kg· min)) or aortic balloon counter pulsation; respiratory rate< 5 breaths per minute; Oxygen saturation< 88%. New-onset myocardial ischemia. Unstable cervical spine fracture and spinal cord injury. Deterioration of neurological function, requiring intracranial pressure monitoring and ventricular drainage, or active control of intracranial hypertension. Current neuromuscular block treatment or pre-existing neuromuscular disease or neuromuscular junction disease affecting respiratory muscle (such as myasthenia gravis, Guillain-Barré syndrome, etc.). There are contraindications to diaphragmatic pacing (local skin, tissue incompleteness or infection, chest X-ray examination shows pneumothorax or pleural effusion accounting for 1/3 of bilateral chest cavity). Body mass index (BMI) ⩾40 kg/m2. Known / suspected phrenic nerve palsy. Patients who refuse active treatment or are in the terminal stage of malignant tumors, have an expected life expectancy of < 6 months, etc. Participated in other clinical studies related to mechanical ventilation within 2 months prior to the start of the study.
    Central Contact Person:
    First Name & Middle Initial & Last Name or Official Title & Degree
    Zhijie He
    Phone
    011-86-13710898290
    Email
    hezhijie@mail.sysu.edu.cn
    First Name & Middle Initial & Last Name or Official Title & Degree
    Fangyi Li
    Phone
    011-86-8615603056533
    Email
    Lify8@mail.sysu.edu.cn
    Overall Study Officials:
    First Name & Middle Initial & Last Name & Degree
    Zhijie He
    Organizational Affiliation
    Sun Yat-sen Memorial Hospital,Sun Yat-sen University
    Official's Role
    Study Director

    12. IPD Sharing Statement

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    Yang X, Zhang T, Cao L, Ye L, Song W. Early Mobilization for Critically Ill Patients. Respir Care. 2023 Jun;68(6):781-795. doi: 10.4187/respcare.10481. Epub 2023 Apr 11.
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    Effect of Early Extracorporeal Diaphragm Pacing Combined With Tilt Table in Ventilated Patients.

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