Obstructive Sleep Apnoea in Adolescents With Thoracic Aortic Aneurysm

Inclusion Criteria: * Age \> 18 years. * Diagnosis of thoracic aortic aneurysm defined by the following parameters: Women: at the level of the sinus of valsalva ≥39mm, or ascending aorta ≥42mm. (for controls: \<39mm and \<42mm respectively); Men: at the level of the sinus of valsalva ≥44mm, or ascending aorta ≥46mm. (for controls: \<44mm and \<46mm respectively) Exclusion Criteria: * Patients on continuous positive airway pressure (CPAP) therapy for OSA at baseline. * Patients with known central sleep apnoea. * Patients on morphine or other opioid medication, heroin addiction, alcohol addiction. * Patients with moderate or severe aortic regurgitation. * Patients with moderate or severe aortic stenosis. * Pregnant patients.