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| Name | Class |
|---|---|
| Provincial Health Services Authority British Columbia | OTHER |
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This study investigates the use of hyperpolarized 129Xe magnetic resonance imaging (MRI) in children with primary ciliary dyskinesia (PCD) in detecting ventilation defects. The investigators will establish the feasibility and reliability of this test and how it changes compared to other pulmonary function tests.
Primary Ciliary Dyskinesia (PCD) is an autosomal recessive inherited disorder caused by defects in ciliary structure and/or function. Prevention or delaying disease progression requires medical therapies and routine lung function monitoring, with the goal of early initiation of medical therapies. Of course, this is contingent on recognizing early lung disease.
Current investigations for monitoring lung disease include pulmonary function tests (PFT), chest x rays and chest CTs. But each of these modalities are either not sensitive enough or expose the patient to ionizing radiation.
The investigators believe that hyperpolarized 129Xe MRI (HP Xe-MRI), new imaging modality, will be more sensitive then current tests and also avoid the need for ionizing radiation. To evaluate this, The investigators will compare HP Xe-MRI to PFT, when the patient is well and during a pulmonary exacerbation that is being treated.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Pediatric PCD | Pediatric participants with PCD |
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| Measure | Description | Time Frame |
|---|---|---|
| Ventilation Defect Percentage (VDP) | Reliability; initial test | Within 1 year of study initiation |
| Ventilation Defect Percentage (VDP) | Reliability; re-test | Within 1 week of initial test |
| Ventilation Defect Percentage (VDP) | VDP within 48h of pulmonary exacerbation diagnosis | Within 48 hours of pulmonary exacerbation diagnosis |
| Ventilation Defect Percentage (VDP) | VDP within 48h of antibiotic completion | Within 48 hours of antibiotic completion |
| Measure | Description | Time Frame |
|---|---|---|
| Pulmonary function tests (PFTs) | Reliability; initial test | Within 1 year of study initiation |
| Pulmonary function tests (PFTs) | Reliability; re-test |
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Inclusion Criteria
Exclusion Criteria
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Patients aged 6-18 with primary ciliary dyskinesia
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| Name | Affiliation | Role |
|---|---|---|
| Felix Ratjen, MD, PhD, FRCP(C), FERS | The Hospital for Sick Children | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Hospital for Sick Children | Toronto | Ontario | M5G1X8 | Canada |
Data will be shared between two participating sites for this study. A data transfer agreement will be created and implemented to ensure smooth transfer of data
The data will be available after enrolling the first participant and will be available for the duration of the study.
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| ID | Term |
|---|---|
| D002925 | Ciliary Motility Disorders |
| ID | Term |
|---|---|
| D012140 | Respiratory Tract Diseases |
| D010038 | Otorhinolaryngologic Diseases |
| D000072661 | Ciliopathies |
| D000015 | Abnormalities, Multiple |
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| Within 1 week of initial test |
| Pulmonary function tests (PFTs) | PFT within 48h of pulmonary exaction diagnosis | Within 48 hours of pulmonary exacerbation diagnosis |
| Pulmonary function tests (PFTs) | PFT within 48h of antibiotic completion | Within 48 hours of antibiotic completion |
| D000013 | Congenital Abnormalities |
| D009358 | Congenital, Hereditary, and Neonatal Diseases and Abnormalities |
| D030342 | Genetic Diseases, Inborn |