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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT03744169
Other study ID # 2018-0711
Secondary ID A534285SMPH/MEDI
Status Completed
Phase
First received
Last updated
Start date December 1, 2018
Est. completion date February 29, 2020

Study information

Verified date June 2020
Source University of Wisconsin, Madison
Contact n/a
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

The purpose of this study is to determine the utility of point-of-care lung ultrasound (POC-LUS) in identifying the etiology of acute respiratory failure in pediatric patients admitted to the pediatric intensive care unit.


Description:

Respiratory failure is one of the most common conditions requiring admission to the pediatric intensive care unit (PICU). As such, chest radiography has emerged as the most commonly utilized tool in the assessment of lung pathology despite evidence that it may not be the most accurate. Since the seminal article by Lichtenstein in 2008, lung ultrasound has emerged as an alternative to chest radiography in the assessment of critically ill adults. Likewise, pediatric lung ultrasound has a growing body of research to support its use in commonly encountered lung pathology including pneumonia, asthma, bronchiolitis, acute chest syndrome, pleural effusions, and pneumothorax. Despite the rapidly growing body evidence, there remains little literature to support its use the diagnosis and management of acute respiratory failure in the PICU.

The proposed study will evaluate whether point-of-care lung ultrasound is accurate in determining the etiology of acute respiratory failure on admission to the PICU.

Specific aims include:

- Aim 1: To determine the sensitivity and specificity of point-of-care lung ultrasound examination in identifying the etiology of acute pediatric respiratory failure on admission to the PICU.

- Aim 2: To determine the inter-observer reliability of point-of-care lung ultrasound examination findings in acute pediatric respiratory failure among trainee and expert sonographers.

- Aim 3: Compare point-of-care lung ultrasound with chest radiography in the rate of detection of consolidation, interstitial edema, pneumothorax, and pleural effusion.

- Aim 4: Describe the POC-LUS findings in patients admitted to the PICU with acute respiratory failure


Recruitment information / eligibility

Status Completed
Enrollment 88
Est. completion date February 29, 2020
Est. primary completion date February 29, 2020
Accepts healthy volunteers No
Gender All
Age group N/A to 18 Years
Eligibility Inclusion Criteria:

- Age greater than 37 weeks gestational age and less than 18 years

- Admitted to PICU

- Clinical diagnosis of acute respiratory failure

- Requirement of non-invasive or invasive respiratory support (as defined by a clinical need for high flow nasal cannula >1L/kg/min; RAM cannula, nasal or full face mask delivered continuous positive airway pressure ventilation; RAM cannula, nasal or full face mask delivered bi-level positive airway pressure ventilation; or invasive mechanical ventilation); requirement of supplemental oxygen with FiO2 > 0.35 while on high flow nasal cannula <1L/kg/min to maintain saturations > 90%; continuous nebulized therapy; or chronic use of home oxygen or ventilator support AND any increase in home settings

Exclusion Criteria:

- Hemodynamically unstable as defined by the initiation of or the need for increased vasopressor support within the previous 30 minutes

- Known chronic respiratory disease such as primary ciliary dyskinesia, cystic fibrosis, or congenital pulmonary malformations.

Study Design


Intervention

Diagnostic Test:
Lung ultrasound
A point-of-care lung ultrasound exam will be performed on admission (no later than 14 hours following admission, allowing for participant stabilization and care) to the PICU and within 6 hours of any escalation in mechanical ventilatory support without interrupting clinical care, by study investigators blinded to participant history, physical examination, and diagnostic testing/imaging and who are not involved in the clinical management of the participant. Investigators will use a six-zone standardized scanning protocol with pattern analysis to form a diagnosis for the cause of the participant's respiratory failure. Images will be acquired by pediatric critical care trainees and saved online; accuracy of diagnoses based on the ultrasound exam will be evaluated by a expert sonographer offline.
Clinical exam
Following morning ICU rounds, the PICU fellow or attending physician caring for the participant will be asked for his/her interpretation of the most recent chest radiograph and his/her diagnosis concerning the etiology of the participant's acute respiratory failure. This clinical diagnosis will be compared to ultrasound findings.
Chest x-ray
Results of chest x-ray will be collected for comparison with ultrasound findings.

Locations

Country Name City State
United States University of Wisconsin, American Family Children's Hospital Madison Wisconsin

Sponsors (1)

Lead Sponsor Collaborator
University of Wisconsin, Madison

Country where clinical trial is conducted

United States, 

References & Publications (61)

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Inglis AJ, Nalos M, Sue KH, Hruby J, Campbell DM, Braham RM, Orde SR. Bedside lung ultrasound, mobile radiography and physical examination: a comparative analysis of diagnostic tools in the critically ill. Crit Care Resusc. 2016 Jun;18(2):124. — View Citation

Jones BP, Tay ET, Elikashvili I, Sanders JE, Paul AZ, Nelson BP, Spina LA, Tsung JW. Feasibility and Safety of Substituting Lung Ultrasonography for Chest Radiography When Diagnosing Pneumonia in Children: A Randomized Controlled Trial. Chest. 2016 Jul;150(1):131-8. doi: 10.1016/j.chest.2016.02.643. Epub 2016 Feb 26. — View Citation

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Levitov A, Frankel HL, Blaivas M, Kirkpatrick AW, Su E, Evans D, Summerfield DT, Slonim A, Breitkreutz R, Price S, McLaughlin M, Marik PE, Elbarbary M. Guidelines for the Appropriate Use of Bedside General and Cardiac Ultrasonography in the Evaluation of Critically Ill Patients-Part II: Cardiac Ultrasonography. Crit Care Med. 2016 Jun;44(6):1206-27. doi: 10.1097/CCM.0000000000001847. — View Citation

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Namachivayam P, Shann F, Shekerdemian L, Taylor A, van Sloten I, Delzoppo C, Daffey C, Butt W. Three decades of pediatric intensive care: Who was admitted, what happened in intensive care, and what happened afterward. Pediatr Crit Care Med. 2010 Sep;11(5):549-55. doi: 10.1097/PCC.0b013e3181ce7427. — View Citation

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* Note: There are 61 references in allClick here to view all references

Outcome

Type Measure Description Time frame Safety issue
Other Rate of pneumothorax detection between point-of-care lung ultrasound and chest radiography Chest x-rays findings (as determine by board certified pediatric radiologists) obtained during the course of routine clinical care will be compared to point-of-care lung ultrasound examinations when completed within 6 hours of each other. The hypothesis is that lung ultrasound will have a higher rate of detection of when compared with a chest radiograph taken less than 6 hours prior to or less than 6 hours after lung ultrasound examination. 6 hours before or after completion of chest x-ray
Other Rate of pleural effusion detection between point-of-care lung ultrasound and chest radiography Chest x-rays findings (as determine by board certified pediatric radiologists) obtained during the course of routine clinical care will be compared to point-of-care lung ultrasound examinations when completed within 6 hours of each other. The hypothesis is that lung ultrasound will have a higher rate of detection of when compared with a chest radiograph taken less than 6 hours prior to or less than 6 hours after lung ultrasound examination. 6 hours before or after completion of chest x-ray
Other Rate of interstitial edema detection between point-of-care lung ultrasound and chest radiography Chest x-rays findings (as determine by board certified pediatric radiologists) obtained during the course of routine clinical care will be compared to point-of-care lung ultrasound examinations when completed within 6 hours of each other. The hypothesis is that lung ultrasound will have a higher rate of detection of when compared with a chest radiograph taken less than 6 hours prior to or less than 6 hours after lung ultrasound examination. 6 hours before or after completion of chest x-ray
Other Rate of alveolar consolidation detection between point-of-care lung ultrasound and chest radiography Chest x-rays findings (as determine by board certified pediatric radiologists) obtained during the course of routine clinical care will be compared to point-of-care lung ultrasound examinations when completed within 6 hours of each other. The hypothesis is that lung ultrasound will have a higher rate of detection of when compared with a chest radiograph taken less than 6 hours prior to or less than 6 hours after lung ultrasound examination. 6 hours before or after completion of chest x-ray
Primary Sensitivity of point-of-care lung ultrasound examination in identifying the etiology of acute pediatric respiratory failure on admission to the PICU The sensitivity of the lung ultrasound in identifying the etiology of acute pediatric respiratory failure will be determined by comparison with the final criterion or "gold standard" diagnosis generated by a blinded review of the chart after discharge by a study investigator blinded to the case. The hypothesis is that the lung ultrasound performed on admission to the PICU will have a sensitivity of > 90% in determining the etiology of acute respiratory failure in children (as determined by an independent review of the participant's medical record following hospital discharge). up to one month
Primary Specificity of point-of-care lung ultrasound examination in identifying the etiology of acute pediatric respiratory failure on admission to the PICU The specificity of the lung ultrasound in identifying the etiology of acute pediatric respiratory failure will be determined by comparison with the final criterion or "gold standard" diagnosis generated by a blinded review of the chart after discharge by a study investigator blinded to the case. The hypothesis is that the lung ultrasound performed on admission to the PICU will have a specificity of > 90% in determining the etiology of acute respiratory failure in children (as determined by an independent review of the participant's medical record following hospital discharge). up to one month
Secondary Inter-observer reliability of point-of-care lung ultrasound examination findings in acute pediatric respiratory failure among trainee and expert sonographers Ultrasound images obtained by a critical care trainee will be saved online for review by an expert sonographer. The expert sonographer will overread the images; findings will be compared at all ultrasound points to determine percent agreement in interpreting ultrasound exam findings between the trainee and expert sonographer. Additionally final ultrasonographic diagnosis will be compared between trainee and expert sonographers. Interpretation of exam findings and determination of exam diagnosis will be compared to determine the inter-observer reliability of point-of-care lung ultrasound exams in acute pediatric respiratory failure. The hypothesis is that the inter-observer reliability between trainee and expert sonographers for point-of-care lung ultrasound findings will be >80%. Following acquisition and interpretation of ultrasound images, an average of less than one week
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