ASA I

• Healthy individual
• No medical problems
• Normal BMI

ASA III

• Moderate‐to‐severe systemic disease
• Autism with severe limitations
• Substantive functional limitations
• Poorly controlled asthma
• COPD
• Poorly controlled hypertension
• Poorly controlled diabetes mellitus
• Insulin dependent diabetes mellitus (IDDM)
• Active hepatitis/alcohol dependence
• Morbid obesity (BMI ≥ 40)
• Previous myocardial infarction with or without CAD/stents (>3 months)
• Previous stroke/TIA (>3 months)
• Controlled CHF
• Implanted pacemaker
• ESRD undergoing regular dialysis
• Difficult airway
• Severe OSA

ASA V

• A moribund patient who is not expected to survive without the operation
• Trauma
• Ruptured TAAA
• Multiple organ system dysfunction

ASA II