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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT03709199
Other study ID # CHLA-18-00354
Secondary ID
Status Recruiting
Phase
First received
Last updated
Start date October 1, 2018
Est. completion date May 1, 2026

Study information

Verified date April 2024
Source Children's Hospital Los Angeles
Contact Robinder G Khemani, MD
Phone 323-361-2376
Email rkhemani@chla.usc.edu
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

This is a prospective observational follow-up study of children enrolled in a single center randomized controlled trial (REDvent). Nearly 50% of adult Acute Respiratory Distress Syndrome (ARDS) survivors are left with significant abnormalities in pulmonary, physical, neurocognitive function and Health Related Quality of Life (HRQL) which may persist for years.Data in pediatric ARDS (PARDS) survivors is limited. More importantly, there are no data identifying potentially modifiable factors during ICU care which are associated with long term impairments, which may include medication choices, or complications from mechanical ventilator (MV) management in the ICU including ventilator induced lung injury (VILI) or ventilator induced diaphragm dysfunction (VIDD). The Real-time effort driven ventilator (REDvent) trial is testing a ventialtor management algorithm which may prevent VIDD and VILI. VIDD and VILI have strong biologic plausibility to affect the post-ICU health of children with likely sustained effects on lung repair and muscle strength. Moreover, common medication choices (i.e. neuromuscular blockade, corticosteroids) or other complications in the ICU (i.e. delirium) are likely to have independent effects on the long term health of these children. This proposed study will obtain serial follow-up of subjects enrolled in REDvent (intervention and control patients). The central hypothesis is that preventing VIDD, VILI and shortening time on MV will have a measureable impact on longer term function by mitigating abnormalities in pulmonary function (PFTs), neurocognitive function and emotional health, functional status and HRQL after hospital discharge for children with PARDS. For all domains, the investigators will determine the frequency, severity and trajectory of recovery of abnormalities amongst PARDS survivors after ICU discharge, identify risk factors for their development, and determine if they are prevented by REDvent. They will leverage the detailed and study specific respiratory physiology data being obtained in REDvent, and use a variety of multi-variable models for comprehensive analysis. Completion of this study will enable the investigators to identify ICU related therapies associated with poor long term outcome, and determine whether they can be mitigated by REDvent.


Description:

Background and Significance: Through advancements in critical care, PARDS mortality has decreased from 50% to less than 20%. Therapeutic strategies for PARDS have sought to improve survival, but have often ignored morbidity, despite extensive evidence that nearly 50% of adult ARDS survivors are left with significant abnormalities in pulmonary, physical, neurocognitive function and HRQL which may persist for years. Recent data highlight that approximately 20% of children with respiratory failure have low HRQL 6 months after ICU discharge, and 30% screen positive for post-traumatic stress (PTS). There are virtually no data regarding pulmonary and neurocognitive deficits in PARDS survivors. More importantly, there are no data identifying potentially modifiable factors during ICU care which are associated with long term impairments. It is increasingly recognized that ARDS ventilator management is associated with VIDD and VILI, which increase length of MV and failed extubation.REDvent is currently testing whether a MV strategy which uses esophageal manometry to target physiologic levels of patient effort can prevent VIDD and shorten length of MV. In addition, the REDvent strategy results in more lung protective management of Positive End Expiratory Pressure (PEEP), Peak Inspiratory Pressure (PIP), and Delta Pressure (DP) which may prevent VILI. While the REDvent study is designed for ICU related outcomes, there is strong biologic plausibility that the REDvent strategy can improve long-term outcome. The investigators propose serial follow up of subjects enrolled in the REDvent study (intervention and control patients) which will leverage the infrastructure and data of an already enrolling clinical trial to fill crucial knowledge gaps regarding how PARDS survivors recover from critical illness. The central hypothesis is that preventing VIDD, VILI and shortening time on MV will have a measureable impact on longer term function by mitigating abnormalities in pulmonary function (PFT), neurocognitive function and emotional health, functional status and HRQL after ICU discharge for children with PARDS. Study Aims: Specific Aim (SA1): To determine the frequency, severity and trajectory of recovery of PFT abnormalities amongst PARDS survivors within 6 months of ICU discharge, identify risk factors for their development, and determine if they are prevented by REDvent. Specific Aim (SA2): To determine the frequency and severity of impairments in neurocognitive function and emotional health amongst PARDS survivors in the first year after ICU discharge, identify risk factors for their development, and determine if they may be improved by REDvent. Specific Aim (SA3): To determine the frequency, severity and trajectory of recovery of respiratory and functional status and HRQL amongst PARDS survivors in the 12 months after ICU discharge, identify risk factors for their development, and determine if they may be improved by REDvent. Study Design: This is a prospective observational follow-up study of children enrolled in a single center randomized controlled trial (REDvent; RO1 HL134666, PI: Khemani). Study Measurements and Outcomes: Assessments will be made serially from enrollment up to 1 year after ICU discharge . Data gathered from the parent REDvent study during the original course of mechanical ventilation will also be used for analysis, to understand whether ICU specific therapies, management strategies, or severity of illness are associated with long term outcomes. Expected Sample Size: REDvent plans to enroll 300 children over 4.5 years. 240 children are expected to survive to hospital discharge, 200 (83%) are expected to consent for follow-up, and allowing for 25% dropout, 150 will reach the primary follow-up endpoints. A1.H1. At least 30% of PARDS survivors will have ventilation inhomogeneity (VI, primary outcome measured with Lung Clearance Index (LCI)) which will persist 6 months after discharge. Analysis: LCI more than 7.5 will be considered abnormal for analysis, and is anticipated to will occur in at least 30% of patients. This yields a 95% confidence interval from 23 to 38% assuming 150 patients complete follow-up. Similar analysis is planned for secondary outcomes. Analyses will be stratified by baseline pulmonary status or history of previous pulmonary disease. A1.H2. ICU management of PEEP and transpulmonary driving pressure will be independently associated with VI after controlling for baseline co-morbidities and PARDS severity. Analysis: The primary outcome for this sub aim is abnormal LCI 6 (VI) months after discharge, as above. Analysis will compare median, mean, and extreme (min or max) transpulmonary pressure at PEEP, plateau, and driving pressure during the acute phase of ventilation (prior to the first SBT) stratified by normal or abnormal LCI. Length of exposure to these settings will be modeled by including an interaction between transpulmonary pressure and length of ventilation. All analyses will be adjusted with multivariable models, controlling for PARDS severity, co-morbidities, and other ventilator and ancillary therapy management. A1.H3. REDvent will be independently associated with lower VI and fewer abnormalities in pulmonary function and respiratory muscle strength. Analysis: The investigators will first analyze differences in median LCI between REDvent and control patients using a Mann-Whitney U or t-test. From preliminary data, the investigators anticipate a power >0.8 to detect > 10% improvement in LCI with the expected enrollment (150 patients). They will subsequently construct a multivariable linear regression model on LCI 6 months after ICU discharge to test whether REDvent management remains independently associated with less VI after adjusting for short term-ICU outcome variables. In addition, usual care acute phase arm (lack of REDvent exposure) will be considered as an independent risk factor for abnormal VI in the multivariable logistic regression model described in A1.H2. A2.H1. At least 30% of previously unimpaired PARDS survivors will have impairment in neurocognitive function 3 months after ICU discharge, and 20% will persist with deficits at 1 year. Analysis: As with the previous aim, the primary outcomes are expressed as binary variables for ease of interpretation. The investigators anticipate 100 previously unimpaired children will complete this aim. The primary outcome is neurocognitive function using Batelle-2 or WISC-5. They estimate approximately 40% of children will have impaired neurocognitive function at 3 month follow-up, resulting in a 95% confidence interval from 30% to 50%. Descriptive analysis will be provided by specific domain both as continuous data and categorized as above. Emotional health assessments and PTS analysis will mimic what is presented above for the subset with data available. A2.H2. Duration of delirium while in the ICU will be independently associated with impaired neurocognitive function. Analysis: The primary outcomes will be categorical, evaluated 3 months after discharge. The primary predictor variable is days with delirium (as identified by CAPD score > 9) modeled as an ordinal variable. Additional confounding variables will be considered including length of MV, illness severity, sedation doses, with selection as described in the previous aims. Secondary analysis will generate a linear regression model on the continuous outcome of normalized neurocognitive score from Batelle-2 or WISC-5, and will consider an interaction term based on the tool used for measurement. A2.H3. Lack REDvent exposure will be independently associated with impaired neurocognitive function. Analysis: The investigators will directly examine normalized neurocognitive score between REDvent and control groups using a t-test or MWU test. The percentage of children with abnormal values at 3 months will be compared between the groups with a Chi-Square test. In multivariable linear regression modeling they will examine the independent relationship between REDvent intervention arm and normalized neurocognitive score, using similar methods as detailed above. In addition, usual care acute phase arm (lack of REDvent exposure) will be considered as an independent risk factor in the multivariable logistic regression models described in A2.H2. A3.H1. At least 25% of PARDS survivors will have a new respiratory requirement, and 40% will have a decline in overall functional status or a significant decrease in HRQL from baseline at 3 months after ICU discharge, and at least 20% of children will persist with a deficit in one of these domains at 12 months. Analysis: As with the previous aims, the primary outcomes are expressed as binary variables for ease of interpretation. However, additional analysis will consider all outcomes as continuous variables. The primary outcomes under this aim consider 3 domains: 1) Functional Status decline: FSS 2 or more points above (worse than) baseline 2) HRQL decline: PEDsQL 5 points or more below (worse than) baseline 3) New respiratory requirement (oxygen, positive pressure, respiratory medications, and respiratory therapies). Based on the research presented above, they estimate 40% of children will have impaired HRQL or functional status at 3 month follow-up, with 95% CI ranging from 32% to 48%, and 25% of children will have a new respiratory requirement, with 95% CI ranging from 18.5 to 32.4%. The same analysis will be repeated at 12 month follow-up. A3.H2. Cumulative exposure to neuromuscular blockade, corticosteroids, length of MV, and delirium will be independently associated with decline in 1) functional status 2) HRQL and 3) new respiratory requirement 3 months after ICU discharge after controlling for PARDS severity, co-morbidities, and other confounding variables. Analysis: The primary outcomes will be categorical, as described in the section above (A3.H1), evaluated 3 months after discharge. The primary predictor variables include: days of neuromuscular blockade, days receiving corticosteroids, days with delirium (CAP-D > 9120-124) and days on MV, modeled as ordinal variables. Additional confounding variables will be considered with selection as described in the previous aims. Multiplicative interaction terms will be considered for inclusion (i.e. corticosteroids*neuromuscular blockade). A3.H3. REDvent will be independently associated with improved recovery to baseline respiratory status, functional status, and HRQL recovery 3 months after ICU discharge. Analysis: The investigators will directly examine PEDsQL change from baseline and FSS change from baseline at 3 month follow up in REDvent and control patients using Mann Whitney U tests. The percentage of children reaching baseline pulmonary requirement at 3 months will be compared between the previously stated groups with a Chi-Square test. In multivariable linear regression modeling the investigators will examine the independent relationship between REDvent intervention arms and change in FSS and HRQL outcomes using the methods detailed in the previous aims. In addition, usual care acute phase arm (lack of REDvent exposure) will be considered as an independent risk factor in the multivariable logistic regression models described in A3.H2 on the categorical outcomes described above.


Recruitment information / eligibility

Status Recruiting
Enrollment 240
Est. completion date May 1, 2026
Est. primary completion date May 1, 2024
Accepts healthy volunteers No
Gender All
Age group 1 Month to 18 Years
Eligibility Inclusion Criteria: 1. Children > 1 month (at least 44 weeks Corrected Gestational Age) and = 18 years of age AND 2. Supported on mechanical ventilation for pulmonary parenchymal disease (i.e., pneumonia, bronchiolitis, Pediatric Acute Respiratory Distress Syndrome (PARDS)) with Oxygen Saturation Index (OSI) = 5 or Oxygenation Index (OI) =4 115 AND 3. Who are within 48 hours of initiation of invasive mechanical ventilation (allow for up to 72 hours for those transferred from another institution) AND 4. Enrolled in the REDvent Study Exclusion Criteria (1-5 are REDvent exclusion): 1. Contraindications to use of an esophageal catheter (i.e. severe mucosal bleeding, nasal encephalocele, transphenoidal surgery) OR 2. Contraindications to use of RIP bands (i.e. omphalocele, chest immobilizer or cast) OR 3. Conditions precluding diaphragm ultrasound measurement (i.e. abdominal wall defects, pregnancy) OR 4. Conditions precluding conventional methods of weaning (i.e., status asthmaticus, severe lower airway obstruction, critical airway, intracranial hypertension, Extra Corporeal Life Support (ECLS), intubation for UAO, tracheostomy, DNR, severe chronic respiratory failure, spinal cord injury above lumbar region, cyanotic heart disease (unrepaired or palliated)) OR 5. Primary Attending physician refuses (will be cleared with primary attending before approaching the patient) OR 6. Death in the ICU OR 7. New DNR orders during acute illness in ICU OR 8. Primary Language not English or Spanish OR 9. Children in foster care or a ward of the state.

Study Design


Related Conditions & MeSH terms


Intervention

Diagnostic Test:
Ventilation Inhomogeneity
Ventilation inhomogeneity will be measured using the Lung Clearance Index (LCI), derived from multiple breath Nitrogen washout during tidal breathing, measured by a mouthpiece or mask covering nose and mouth.
Diaphragm Ultrasound
Diaphragm thickness and contractile activity measured during tidal breathing.
Respiratory Inductance Plethysmography
Measure of thoraco-abdominal asynchrony during tidal breathing
Spirometry
Measurement of Forced Expiratory Volume (FEV1), Forced Vital Capacity and other lung volumes using standard pulmonary function techniques
Functional Residual Capacity
Measurement using body box plethysmography of functional residual capacity and other lung volumes using standard pulmonary function techniques
MIP/MEP
Measurement of maximal inspiratory and expiratory pressures during airway occlusion
6 minute walk test
Measurement of cardio-respiratory function and capabilities during treadmill walking for 6 minutes.
Neurocognitive Testing
Detailed in person neuro-cognitive testing using standardized inventories using either the Battelle Developmental Inventory, second edition (Battelle-2) (age birth to 5 years 11 months) and the Wechsler Intelligence Scale for Children, fifth edition (WISC-5, for age 6 years to 19 years).
Emotional Health Assessment
In person and written assessments of children and parents using the Behavioral Assessment System for Children, third edition (BASC-3) for children = 2 years and the UCLA PTSD Reaction Index (UCLA RI) for children = 8 years.
Health Related Quality of Life
Standardized instruments to assess (in person, over the phone, or via mail) health related quality of life in children. Parent and child questionnaires.
Functional Status
Survey of overall functional status, administrated by asking a series of questions to patient and families.
Respiratory Status Questionnaire
Survey of respiratory health, administrated by asking a series of questions to patient and families.

Locations

Country Name City State
United States Children's Hospital Los Angeles Los Angeles California

Sponsors (1)

Lead Sponsor Collaborator
Children's Hospital Los Angeles

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Other 6 minute walk test Measure of cardio-respiratory function after treadmill walking Prior to Hospital Discharge and no more than 1 month after ICU discharge
Other 6 minute walk test Measure of cardio-respiratory function after treadmill walking 6 months after ICU discharge
Primary Ventilation In-homogeneity using lung clearance index with nitrogen washout Measured by lung clearance index during multiple breath nitrogen washout testing reported as percent predicted based on age and height as well as a raw number typically ranging from 5-15. 6 months after ICU discharge
Primary Neurocognitive function using a standardized score derived from Batelle-2 or WISC-5 cognitive tests Standardized IQ-like score derived from Batelle-2 or WISC-5 cognitive tests based on age. Children < 6 years will receive the Batelle-2 and children >=6 will receive the WISC-5. Overall score will be use for analysis with a higher value indicating better cognitive function. The range of "average" cognitive function lies between 90-109. Both tests are scored on the same scale 3 months after ICU discharge
Primary Health Related Quality of Life as measured by PedsQL generic core scale PedsQL generic core scale, with range from 0-100, with the higher score indicating better health related quality of life 3 months after ICU discharge
Primary Functional Status as measured by the pediatric functional status scale Functional status scale which is scored from normal (score =1) to very severe dysfunction (score =5) in each of 6 domains. The sum score of all domains will be used for analysis, yielding a minimum possible score of 6 and a maximum possible score of 30. Analysis will focus on a change in FSS from baseline (assessed as functional status 1 month prior to ICU admission). An increase in the FSS from baseline to 3 months will be considered as a decline in functional status. 3 months after ICU discharge
Secondary Functional Residual Capacity (Lung volume at end-expiration). Measured by body box plethysmography and nitrogen washout techniques, normalized by age, height and gender. Values below or above normative values will be considered abnormal. Prior to Hospital Discharge and no more than 1 month after ICU discharge
Secondary Functional Residual Capacity (Lung volume at end-expiration). Measured by body box plethysmography and nitrogen washout techniques, normalized by age, height and gender. Values below or above normative values will be considered abnormal. 6 months after ICU discharge
Secondary Phase Angle (a measure of thoraco-abdominal asynchrony and abnormal respiratory mechanics) Respiratory Inductance Plethysmography belts are used during tidal breathing to measure thoraco-abdominal asyncrhony. Higher values will be considered abnormal with a range from 0-180. Prior to Hospital Discharge and no more than 1 month after ICU discharge
Secondary Phase Angle (a measure of thoraco-abdominal asynchrony and abnormal respiratory mechanics) Respiratory Inductance Plethysmography belts are used during tidal breathing to measure thoraco-abdominal asyncrhony. Higher values will be considered abnormal with a range from 0-180. 6 Months after ICU Discharge
Secondary Diaphragm Thickness on exhalation Diaphragm ultrasound measurement of thickness at end exhalation measured in zone of apposition of right hemi-diaphragm Prior to Hospital Discharge and no more than 1 month after ICU discharge
Secondary Diaphragm Thickness on exhalation Diaphragm ultrasound measurement of thickness at end exhalation measured in zone of apposition of right hemi-diaphragm 6 months after ICU discharge
Secondary Diaphragm Thickness on inspiration Diaphragm ultrasound measurement of thickness at end inspiration measured in zone of apposition of right hemi-diaphragm Prior to Hospital Discharge and no more than 1 month after ICU discharge
Secondary Diaphragm Thickness on inspiration Diaphragm ultrasound measurement of thickness at end inspiration measured in zone of apposition of right hemi-diaphragm 6 months after ICU discharge
Secondary Diaphragm Thickening fraction (measure of contractile activity) Diaphragm ultrasound measurement calculated as (thickness at end inspiration-thickness at end expiration)/(thickness at end expiration) measured in zone of apposition of right hemi-diaphragm. Prior to Hospital Discharge and no more than 1 month after ICU discharge
Secondary Diaphragm Thickening fraction (measure of contractile activity) Diaphragm ultrasound measurement calculated as (thickness at end inspiration-thickness at end expiration)/(thickness at end expiration) measured in zone of apposition of right hemi-diaphragm. 6 months after ICU discharge
Secondary Ventilation In-homogeneity using lung clearance index with nitrogen washout Measured by lung clearance index during multiple breath nitrogen washout testing reported as percent predicted based on age and height as well as a raw number typically ranging from 5-15. Prior to Hospital Discharge and no more than 1 month after ICU discharge
Secondary Forced Expiratory Volume in 1 second (FEV1) Spirometry based measures of pulmonary function of forced expiratory volume, normalized based on age, height, and gender and reported as percent predicted. Prior to Hospital Discharge and no more than 1 month after ICU discharge
Secondary Forced Expiratory Volume in 1 second (FEV1) Spirometry based measures of pulmonary function of forced expiratory volume, normalized based on age, height, and gender and reported as percent predicted. 6 months after ICU discharge
Secondary Forced Vital Capacity (FVC) Spirometry based measures of pulmonary function of forced vital capacity, normalized based on age, height, and gender and reported as percent predicted. Prior to Hospital Discharge and no more than 1 month after ICU discharge
Secondary Forced Vital Capacity (FVC) Spirometry based measures of pulmonary function of forced vital capacity, normalized based on age, height, and gender and reported as percent predicted. 6 months after ICU discharge
Secondary Forced expiratory flow at 25-75% (FEF 25-75) Spirometry based measures of pulmonary function of forced expiratory flow at 25-75% of breath, normalized based on age, height, and gender and reported as percent predicted. Prior to Hospital Discharge and no more than 1 month after ICU discharge
Secondary Forced expiratory flow at 25-75% (FEF 25-75) Spirometry based measures of pulmonary function of forced expiratory flow at 25-75% of breath, normalized based on age, height, and gender and reported as percent predicted. 6 months post ICU discharge
Secondary VT - tidal volume from spirometry during tidal breathing Lung volume measurements obtained during tidal breathing, normalized in ml/kg ideal body weight. Prior to Hospital Discharge and no more than 1 month after ICU discharge
Secondary VT - tidal volume from spirometry during tidal breathing Lung volume measurements obtained during tidal breathing, normalized in ml/kg ideal body weight. 6 months after ICU discharge
Secondary Total Lung Capacity- TLC measured during spirometry Lung volume measurements obtained during pulmonary function tests with spirometry and body box plethysmography to calculate total lung capacity, normalized by age, height and gender. Prior to Hospital Discharge and no more than 1 month after ICU discharge
Secondary Total Lung Capacity- TLC measured during spirometry Lung volume measurements obtained during pulmonary function tests with spirometry and body box plethysmography to calculate total lung capacity, normalized by age, height and gender. 6 months after ICU discharge
Secondary Forced vital capacity- measured during spirometry Lung volume measurements obtained during pulmonary function tests with spirometry to calculate forced vital capacity, normalized by age, height and gender. Prior to Hospital Discharge and no more than 1 month after ICU discharge
Secondary Forced vital capacity- measured during spirometry Lung volume measurements obtained during pulmonary function tests with spirometry to calculate forced vital capacity, normalized by age, height and gender. 6 months after ICU discharge
Secondary Respiratory Muscle Strength Maximum inspiratory pressure (MIP) Maximal inspiratory pressure measurements during airway occlusion in cm H20 Prior to Hospital Discharge and no more than 1 month after ICU discharge
Secondary Respiratory Muscle Strength Maximum inspiratory pressure (MIP) Maximal inspiratory pressure measurements during airway occlusion in cm H20 6 months after ICU discharge
Secondary Respiratory Muscle Strength Maximum expiratory pressure (MEP) Maximal expiratory pressure measurements during airway occlusion in cm H20 Prior to Hospital Discharge and no more than 1 month after ICU discharge
Secondary Respiratory Muscle Strength Maximum expiratory pressure (MEP) Maximal expiratory pressure measurements during airway occlusion in cm H20 6 months after ICU discharge
Secondary Neurocognitive function using a standardized score derived from Batelle-2 or WISC-5 cognitive tests Standardized IQ-like score derived from Batelle-2 or WISC-5 cognitive tests. Overall score will be use for analysis with a higher value indicating better cognitive function. The range of "average" cognitive function lies between 90-109. 12 months after ICU discharge
Secondary Health Related Quality of Life as measured by PedsQL generic core scale PedsQL generic core scale, with range from 0-100, with the higher score indicating better health related quality of life ICU discharge
Secondary Health Related Quality of Life as measured by PedsQL generic core scale PedsQL generic core scale, with range from 0-100, with the higher score indicating better health related quality of life 1 month after ICU discharge
Secondary Health Related Quality of Life as measured by PedsQL generic core scale PedsQL generic core scale, with range from 0-100, with the higher score indicating better health related quality of life 2 months after ICU discharge
Secondary Health Related Quality of Life as measured by PedsQL generic core scale PedsQL generic core scale, with range from 0-100, with the higher score indicating better health related quality of life 6 months after ICU discharge
Secondary Health Related Quality of Life as measured by PedsQL generic core scale PedsQL generic core scale, with range from 0-100, with the higher score indicating better health related quality of life 12 months after ICU discharge
Secondary Functional Status as measured by the pediatric functional status scale Functional status scale which is scored from normal (score =1) to very severe dysfunction (score =5) in each of 6 domains. The sum score of all domains will be used for analysis, yielding a minimum possible score of 6 and a maximum possible score of 30. Analysis will focus on a change in FSS from baseline (assessed as functional status 1 month prior to ICU admission). An increase in the FSS from baseline will be considered as a decline in functional status. ICU discharge
Secondary Functional Status as measured by the pediatric functional status scale Functional status scale which is scored from normal (score =1) to very severe dysfunction (score =5) in each of 6 domains. The sum score of all domains will be used for analysis, yielding a minimum possible score of 6 and a maximum possible score of 30. Analysis will focus on a change in FSS from baseline (assessed as functional status 1 month prior to ICU admission). An increase in the FSS from baseline will be considered as a decline in functional status. 1 month after ICU discharge
Secondary Functional Status as measured by the pediatric functional status scale Functional status scale which is scored from normal (score =1) to very severe dysfunction (score =5) in each of 6 domains. The sum score of all domains will be used for analysis, yielding a minimum possible score of 6 and a maximum possible score of 30. Analysis will focus on a change in FSS from baseline (assessed as functional status 1 month prior to ICU admission). An increase in the FSS from baseline will be considered as a decline in functional status. 2 months after ICU discharge
Secondary Functional Status as measured by the pediatric functional status scale Functional status scale which is scored from normal (score =1) to very severe dysfunction (score =5) in each of 6 domains. The sum score of all domains will be used for analysis, yielding a minimum possible score of 6 and a maximum possible score of 30. Analysis will focus on a change in FSS from baseline (assessed as functional status 1 month prior to ICU admission). An increase in the FSS from baseline will be considered as a decline in functional status. 6 months after ICU discharge
Secondary Functional Status as measured by the pediatric functional status scale Functional status scale which is scored from normal (score =1) to very severe dysfunction (score =5) in each of 6 domains. The sum score of all domains will be used for analysis, yielding a minimum possible score of 6 and a maximum possible score of 30. Analysis will focus on a change in FSS from baseline (assessed as functional status 1 month prior to ICU admission). An increase in the FSS from baseline will be considered as a decline in functional status. 12 months after ICU discharge
Secondary Respiratory Status - questionnaire detailing respiratory medications and therapies as well as healthcare utilization. Series of questions to detail respiratory based morbidity ICU discharge
Secondary Respiratory Status - questionnaire detailing respiratory medications and therapies as well as healthcare utilization. Series of questions to detail respiratory based morbidity 1 month after ICU discharge
Secondary Respiratory Status - questionnaire detailing respiratory medications and therapies as well as healthcare utilization. Series of questions to detail respiratory based morbidity 2 months after ICU discharge
Secondary Respiratory Status - questionnaire detailing respiratory medications and therapies as well as healthcare utilization. Series of questions to detail respiratory based morbidity 3 months after ICU discharge
Secondary Respiratory Status - questionnaire detailing respiratory medications and therapies as well as healthcare utilization. Series of questions to detail respiratory based morbidity 6 months after ICU discharge
Secondary Respiratory Status - questionnaire detailing respiratory medications and therapies as well as healthcare utilization. Series of questions to detail respiratory based morbidity 12 months after ICU discharge
Secondary Emotional Health Outcomes using the (BASC-3) to assess emotional and behavioral abnormalities and UCLA Reaction Index to assess post traumatic stress The Behavioral Assessment System for Children, third edition (BASC-3) for children = 2 years will be used to assess for emotional and behavioral abnormalities as a survey tool. The UCLA PTSD Reaction Index (UCLA RI) will be used for children = 8 years. The UCLA RI is a semi-structured interview assessing for exposure to traumatic events and PTS in children. 3 months after ICU discharge
Secondary Emotional Health Outcomes using the (BASC-3) to assess emotional and behavioral abnormalities and UCLA Reaction Index to assess post traumatic stress The Behavioral Assessment System for Children, third edition (BASC-3) for children = 2 years will be used to assess for emotional and behavioral abnormalities as a survey tool. The UCLA PTSD Reaction Index (UCLA RI) will be used for children = 8 years. The UCLA RI is a semi-structured interview assessing for exposure to traumatic events and PTS in children. 12 months after ICU discharge
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