title: Echocardiographic changes in children with pulmonary hypertension secondary to upper airway obstruction.
mesh_terms: D000402:Airway Obstruction / Q000150:complications*; D001794:Blood Pressure; D002245:Carbon Dioxide / Q000097:blood; D006328:Cardiac Catheterization; D002675:Child, Preschool; D004452:Echocardiography; D004562:Electrocardiography; D005260:Female; D006801:Humans; D006976:Hypertension, Pulmonary / Q000175:diagnosis / Q000209:etiology* / Q000503:physiopathology; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D010100:Oxygen / Q000097:blood; D010313:Partial Pressure; D014655:Vascular Resistance
chemical_list: D002245:Carbon Dioxide; D010100:Oxygen