- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02552186
Non-invasive Clinical Pectus Index as a Measurement of Severity in Pectus
Study Overview
Detailed Description
This is a prospective study. The study population will consist of 2 groups. The first group (PE Group) will consist of patients presenting to the Johns Hopkins All Children's Hospital (JHACH) Pediatric Surgery or Cardiac Surgery Clinics and the outpatient clinic system at Johns Hopkins Hospital for evaluation of pectus excavatum. The second group (Control Group) will be age and gender matched patients presenting to the Radiology department of JHACH undergoing CT chest for indications other than chest wall deformity. Clinical caliper measurements will be taken and used to calculate the Clinical PI.
The steps to obtain the clinical caliper measurements are as follows: With the subject lying down, a ruler will be placed across the chest and a second ruler will be used to measure the depth at the deepest point of the sternum. The 2nd ruler will then be used to measure the height of the horizontal ruler to the bed on both sides. All measurements will be made on end expiration. With the subject standing, a measuring tape will be placed around the chest at the point of the deepest sternal depression. The sternum, spine and the bilateral lateral chest locations will be marked with temporary ink. The tape will be kept as level as possible. Chest calipers will be used to measure from deepest point of sternum to posterior midline, posterior midline to anterior chest and the transverse chest diameter. Each measurement will be taken at end expiration. The circumference of the chest will be recorded.
Each set of measurements will be taken by 2 independent members of the research team. Attempts will be made to record the amount of time it takes to obtain the measurements. Consent will be obtained to photograph the process for illustrative purposes. Every attempt will be made to conceal the patient's identity by excluding the face from the photograph. In instances where the face is not able to be excluded, the facial features will be blurred.
Clinical measurements may be recorded during routine medical care at the provider's discretion. However, these measurements will be considered research procedures for the purposes of this trial. A copy of the measurements will be placed in the medical chart of subjects evaluated for PE for the provider's future reference. Measurements obtained in the Control group will be strictly for the purposes of the research protocol. All subjects, regardless of group, will be provided standard of care for all other medical conditions.
All CT and MRI performed for both PE and Control groups will be reviewed and the PI will be determined by a single, blinded radiologist. The radiologist determining the PI may not be the interpreting radiologist and will have no responsibility to provide a comprehensive interpretation of the study. The PI as determined by the research radiologist will be recorded separately from the subject's EMR in a research file. Having a single, blinded radiologist determine the PI for the entire research cohort will allow for consistency in determining the PI, as this is the gold standard to which we are comparing our clinical measurements.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
Florida
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Saint Petersburg, Florida, United States, 33701
- Johns Hopkins All Children's Hospital
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-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- Group A (PE Group): All patients evaluated in the ACH JHM Pediatric Surgery or Cardiac Surgery Clinics, as well as in the outpatient clinic system at Johns Hopkins Hospital, for surgical correction of Pectus Excavatum.
- Group B (Control Group): Age and gender matched patients who undergo chest CT at the ACH JHM Radiology Department for indications other than Pectus Excavatum.
Exclusion Criteria:
- None
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Diagnostic
- Allocation: Non-Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Active Comparator: Pectus Excavatum Group
The first group (PE Group) will consist of patients presenting to the All Children's Hospital Johns Hopkins Medicine (ACH JHM) Pediatric Surgery or Cardiac Surgery Clinics and the outpatient clinic system at Johns Hopkins Hospital for evaluation of pectus excavatum.
Clinical measurements will be obtained using calipers.
|
Clinical caliper measurements will be taken and used to calculate the Clinical PI
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No Intervention: Control Group
The second group (Control Group) will be age and gender matched patients presenting to the Radiology department of ACH JHM undergoing CT chest for indications other than chest wall deformity.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Sensitivity of clinically-derived threshold versus CT/MRI-derived thresholds
Time Frame: 5 years
|
Sensitivity refers to the ability of the test to correctly identify those patients with the disease.
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5 years
|
Specificity of clinically-derived threshold versus CT/MRI-derived thresholds
Time Frame: 5 years
|
Specificity refers to the ability of the test to correctly identify those patients without the disease.
|
5 years
|
Receiver operator characteristic curve of clinically-derived threshold versus CT/MRI-derived thresholds
Time Frame: 5 years
|
plot of the true positive rate against the false positive rate for the different possible cutpoints of a diagnostic test.
|
5 years
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Correlation coefficient
Time Frame: 5 years
|
statistical measure of the strength of the relationship between the relative movements of two variables.
|
5 years
|
Cohen's Kappa coefficient
Time Frame: 5 years
|
a statistic which measures inter-rater agreement for qualitative (categorical) items.
It
|
5 years
|
Agreement between Clinical Pectus Index (CPI) and Pectus Index (PI)-derived from CT or MRI
Time Frame: 5 years
|
determine how well each measure identifies the outcome desired
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5 years
|
Collaborators and Investigators
Investigators
- Principal Investigator: Nicole Chandler, MD, JHACH
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimated)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- IRB00067521
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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