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This study is a single center, prospective cohort crossover study comparing mechanically ventilated neonates and infants on Neurally Adjusted Ventilatory Assist (NAVA) and synchronized intermittent mandatory ventilation with pressure control plus pressure support (SIMV(PC) + PS) modes.
This design will allow for direct comparison of two commonly used ventilator modalities in the neonatal intensive care unit (NICU) to determine if one mode is superior to the other with regards to respiratory mechanics and estimated energy expenditure.
It is hypothesized that neonates and infants will have improved respiratory severity score (MAP X FiO2) utilizing NAVA compared to the SIMV (PC) + PS mode but will have increased estimated energy expenditure.
This single center, prospective cohort crossover study will involve mechanically ventilated neonates and infants who are determined to be on stable ventilator settings in either the NAVA or SIMV(PC) + PS modes. This design will allow for direct comparison of two commonly used ventilator modalities in the neonatal intensive care unit (NICU) to determine if one mode is superior to the other with regards to respiratory mechanics and energy expenditure.
Infants will be screened for stability criteria including: being stable on the ventilator in either SIMV (PC) + PS or NAVA mode, on weaning or unchanged ventilatory support in previous 12 hours, and no need of escalation of ventilatory pressure or rate in prior 12 hours.
After screening criteria is met and consent has been obtained, data will be retrospectively collected for 12 hours prior to randomization. After the subject is randomized, the infant will be stabilized and data will be collected for 12 hours in the randomized mode. Data will then be collected for 12 hours afterwards in the crossover mode. Data will be collected in areas of patient demographics, diagnoses, indications for mechanical ventilation, hemodynamic variables and respiratory parameters. While in each mode, the patient will also have indirect calorimetry obtained to determine estimated energy expenditure of each mode.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Neurally Adjusted Ventilatory Assist | Other | Subject will be randomized to NAVA ventilation. Intervention is mechanical ventilation with Neurally Adjusted Ventilatory Assist for 12 hours. |
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| Synchronized Interm. Mandatory Assist | Other | Subject will be randomized to SIMV(PC)PS ventilation. Intervention is mechanical ventilation with Synchronized Intermittent Mandatory Assist with Pressure Support for 12 hours. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Neurally Adjusted Ventilatory Assist | Device | The subject will be crossed over from the baseline ventilator mode to Neurally Adjusted Ventilatory Assist |
|
| Measure | Description | Time Frame |
|---|---|---|
| Respiratory Severity Score (MAP X FiO2) | The respiratory severity score will be calculated throughout 24 hour time frame prior to and after study initiation to determine the subject's respiratory severity prior to the randomization, after randomization and after crossover. The respiratory severity score (RSS) is a simplified severity score consisting of the mean airway pressure (MAP) multiplied by the fraction of inspired oxygen (FiO2). This score ranges from 0 to 12, with a higher score indicating more severe disease. | 12 hours and 24 hours |
| Measure | Description | Time Frame |
|---|---|---|
| Energy Expenditure | The subject will have indirect calorimetry performed twice during the study on each mode, 12 hours after randomization and 12 hours after crossover to determine the approximate amount of energy expenditure needed for each mode of mechanical ventilation. Energy expenditure is calculated by using the Harris-Benedict equation, resulted in kcal/kg per day. | 12 hours and 24 hours |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Jamie L Rosterman, DO | Children's Mercy Hospital Kansas City | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Children's Mercy Hospital | Kansas City | Missouri | 64108 | United States |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 29072677 | Derived | Rosterman JL, Pallotto EK, Truog WE, Escobar H, Meinert KA, Holmes A, Dai H, Manimtim WM. The impact of neurally adjusted ventilatory assist mode on respiratory severity score and energy expenditure in infants: a randomized crossover trial. J Perinatol. 2018 Jan;38(1):59-63. doi: 10.1038/jp.2017.154. Epub 2017 Oct 26. |
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| ID | Title | Description |
|---|---|---|
| FG000 | NAVA Ventilation First, Then SIMV(PC)PS Ventilation | Subject will be randomized to NAVA ventilation first. Intervention is mechanical ventilation with Neurally Adjusted Ventilatory Assist for 12 hours. Subjects will cross over. Neurally Adjusted Ventilatory Assist: The subject will be crossed over from the baseline ventilator mode to Neurally Adjusted Ventilatory Assist Synchronized Interm. Mandatory Assist: The subject will be crossed over from the baseline ventilator mode to Synchronized Intermittent Mandatory Assist with Pressure Support |
| Title | Milestones | Reasons Not Completed | |||||
|---|---|---|---|---|---|---|---|
| Overall Study |
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| Synchronized Interm. Mandatory Assist | Device | The subject will be crossed over from the baseline ventilator mode to Synchronized Intermittent Mandatory Assist with Pressure Support |
|
| FG001 | SIMV(PC)PS Ventilation First, Then NAVA Ventilation | Subject will be randomized to SIMV(PC)PS ventilation first. Intervention is mechanical ventilation with Synchronized Intermittent Mandatory Assist with Pressure Support for 12 hours. Subjects will cross over Neurally Adjusted Ventilatory Assist: The subject will be crossed over from the baseline ventilator mode to Neurally Adjusted Ventilatory Assist Synchronized Interm. Mandatory Assist: The subject will be crossed over from the baseline ventilator mode to Synchronized Intermittent Mandatory Assist with Pressure Support |
| COMPLETED |
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| NOT COMPLETED |
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| ID | Title | Description |
|---|---|---|
| BG000 | NAVA Ventilation First, Then SIMV(PC)PS Ventilation | Subject will be randomized to NAVA ventilation first. Intervention is mechanical ventilation with Neurally Adjusted Ventilatory Assist for 12 hours. Subjects will cross over. Neurally Adjusted Ventilatory Assist: The subject will be crossed over from the baseline ventilator mode to Neurally Adjusted Ventilatory Assist Synchronized Interm. Mandatory Assist: The subject will be crossed over from the baseline ventilator mode to Synchronized Intermittent Mandatory Assist with Pressure Support |
| BG001 | SIMV(PC)PS Ventilation First, Then NAVA Ventilation | Subject will be randomized to SIMV(PC)PS ventilation first. Intervention is mechanical ventilation with Synchronized Intermittent Mandatory Assist with Pressure Support for 12 hours. subjects will cross over. Neurally Adjusted Ventilatory Assist: The subject will be crossed over from the baseline ventilator mode to Neurally Adjusted Ventilatory Assist Synchronized Interm. Mandatory Assist: The subject will be crossed over from the baseline ventilator mode to Synchronized Intermittent Mandatory Assist with Pressure Support |
| BG002 | Total | Total of all reporting groups |
| Units | Counts |
|---|---|
| Participants |
|
| Title | Description | Population Description | Parameter Type | Dispersion Type | Unit of Measure | Calculate Percentage | Denominator Units Selected | Denominators | Classes | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Age, Categorical | Count of Participants | Participants |
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| Age, Continuous | Median | Full Range | Post Menstral Age in weeks |
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| Sex: Female, Male | Count of Participants | Participants |
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| Region of Enrollment | Number | participants |
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| Type | Title | Description | Population Description | Reporting Status | Anticipated Posting Date | Parameter Type | Dispersion Type | Unit of Measure | Calculate Percentage | Time Frame | Units Analyzed | Denominator Units Selected | Arm/Group Information | Denominators | Classes | Analyses | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Primary | Respiratory Severity Score (MAP X FiO2) | The respiratory severity score will be calculated throughout 24 hour time frame prior to and after study initiation to determine the subject's respiratory severity prior to the randomization, after randomization and after crossover. The respiratory severity score (RSS) is a simplified severity score consisting of the mean airway pressure (MAP) multiplied by the fraction of inspired oxygen (FiO2). This score ranges from 0 to 12, with a higher score indicating more severe disease. | Posted | Mean | Standard Deviation | score on a scale | 12 hours and 24 hours |
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| Secondary | Energy Expenditure | The subject will have indirect calorimetry performed twice during the study on each mode, 12 hours after randomization and 12 hours after crossover to determine the approximate amount of energy expenditure needed for each mode of mechanical ventilation. Energy expenditure is calculated by using the Harris-Benedict equation, resulted in kcal/kg per day. | This outcome measure was not broken down by intervention as it is a median of energy expenditure for all participants enrolled. The data herein are cumulative for all study participants. | Posted | Median | Inter-Quartile Range | kcal/kg per day | 12 hours and 24 hours |
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24 hours
Escalation of ventilation settings
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| ID | Title | Description | Deaths (Affected) | Deaths (At Risk) | Serious Events (Affected) | Serious Events (At Risk) | Other Events (Affected) | Other Events (At Risk) |
|---|---|---|---|---|---|---|---|---|
| EG000 | NAVA Ventilation First, Then SIMV(PC)PS Ventilation | Intervention is mechanical ventilation with Neurally Adjusted Ventilatory Assist for 12 hours. | 0 | 11 | 0 | 11 | 0 | 11 |
| EG001 | SIMV(PC)PS Ventilation First, Then NAVA Ventilation | Intervention is mechanical ventilation with Synchronized Intermittent Mandatory Assist with Pressure Support for 12 hours. | 0 | 11 | 0 | 11 | 0 | 11 |
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| Title | Organization | Phone | Extension | |
|---|---|---|---|---|
| Winston Manimtim | Children's Mercy Hospital | 816-234-3000 | wmmanimtim@cmh.edu |
| ID | Term |
|---|---|
| D012131 | Respiratory Insufficiency |
| D004194 | Disease |
| ID | Term |
|---|---|
| D012120 | Respiration Disorders |
| D012140 | Respiratory Tract Diseases |
| D010335 | Pathologic Processes |
| D013568 | Pathological Conditions, Signs and Symptoms |
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| ID | Term |
|---|---|
| D059725 | Interactive Ventilatory Support |
| ID | Term |
|---|---|
| D012121 | Respiration, Artificial |
| D058109 | Airway Management |
| D013812 | Therapeutics |
| D012138 | Respiratory Therapy |
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| >=65 years |
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| Male |
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