Morquio A disease is a devastating systemic skeletal disease in which detailed progression and pathogenesis remain unknown. The proposed project aims to establish a non-invasive objective assessment that can be applicable to all ages of patients to better understand the progress of their disease and the most serious clinical problems (cervical instability and stenosis, tracheal obstruction, hyperlaxity of joints, hip dysplasia, and small lung capacity). The outcome of this project will lead to a more precise understanding of the skeletal/pulmonary compromise and defining clinical endpoints in this disease for future clinical trials of current or developing therapies.
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Change of Total body length
Timeframe: baseline, 18 months, 36 months, 48 months
Change of Body mass index (BMI)
Timeframe: baseline, 18 months, 36 months, 48 months
Change of Height velocity
Timeframe: baseline, 18 months, 36 months, 48 months
Change of QOL questionnaire
Timeframe: baseline, 18 months, 36 months, 48 months
Change of Joint Mobility
Timeframe: baseline, 18 months, 36 months, 48 months
Change of Skeletal survey by x-rays
Timeframe: baseline, 36 months
Change of MRI in cervical spine (distance)
Timeframe: baseline, 18 months, 36 months, 48 months
Change of CT angiography (CTA) (area)
Timeframe: baseline, 36 months
Change of Anesthetic encounters
Timeframe: baseline, 18 months, 36 months, 48 months
Change of Pulmonary Function Tests (CO2 %)
Timeframe: baseline, 18 months, 36 months, 48 months
Change of Pulmonary Function Tests (Resistance)
Timeframe: baseline, 18 months, 36 months, 48 months
Change of Pulmonary Function Tests (percent Rib Cage)
Timeframe: baseline, 18 months, 36 months, 48 months
Change of Z-score of Bone mineral density (BMD)
Timeframe: baseline, 18 months, 36 months, 48 months
Change of Hearing function (db SPL)
Timeframe: baseline, 18 months, 36 months, 48 months
Change of Gait analysis (Nm/kg)
Timeframe: baseline, 18 months, 36 months, 48 months
Change of Biochemical biomarkers (KS)
Timeframe: baseline, 18 months, 36 months, 48 months
Change of Biochemical biomarkers (C6S)
Timeframe: baseline, 18 months, 36 months, 48 months