Xenon Against Postoperative Oxygen Impairment

Inclusion Criteria Consultant's clinical diagnosis of Stanford type A AAD using local pathways of diagnosis, which may include clinical history, chest radiography (X-rays), transthoracic ultrasound, and contrast-enhanced computed tomography (CT) or magnetic resonance imaging (MRI) Patients aged 18 to 65 years Eligible for AAD surgery Exclusion Criteria Have coronary heart disease, heart failure, severe cardiac tamponade, unstable hemodynamics, severe nervous system abnormalities, clinically apparent malperfusion\[9\] including lower limb, cerebral, coronary and renal malperfusion, and visceral ischemia, sever hepatic and renal abnormalities Have undergone any of the cardiac and thoracic surgeries Are unlikely to be able to perform the required clinical assessment tasks Have significant cognitive impairment or language issues Are unable to provide consent with regard to their participation in the study Prescribed with non-steroidal anti-inflammatory drugs or corticosteroids before or after admission