500
These operations are considered high risk for cardiac risk stratification in non-cardiac surgery
What are emergent major operations (elderly), aortic and other major vascular surgery, peripheral vascular surgery, prolonged procedures w/ large fluid shifts/blood loss.
Intermediate: CEA, Head and neck, intraperitoneal and intrathoracic, orthopedic, prostate
Low: Endoscopic, superficial, cataract, breast