VSG Cardiac Risk Index | Open Infrarenal AAA Repair

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Use the Vascular Study Group of New England Cardiac Risk Index (VSG-CRI) to estimate post-operative in-hospital major cardiac event after an open infrarenal AAA repair.

Prior coronary revascularization (CABG or PCI)?
Congestive heart failure?
Creatinine ≥1.8 mg/dl or ≥158 µmol/L?
Use of Beta Blockers?[Definition]
Prior vascular surgery? [Definition]


Beta blocker use is considered perioperative if started within one month before surgery, chronic if started more than one month before surgery.

Select prior vascular surgery if known history of previous arterial bypass. Previous arterial bypass includes:

  • Any non-cardiac arterial bypass for occlusive disease.
  • Previous arterial carotid endarterectomy.
  • Any known true arterial aneurysm repair (excluding cerebral or pseudo-aneurysm).
  • PTA/stent of any non-cardiac artery.

Prior Vascular surgery also includes major amputation of the hand or foot.


About this calculator

The Revised Cardiac Risk Index (RCRI) is a widely used model for predicting cardiac events after noncardiac surgery. However, it substantially underestimates in-hospital cardiac events in patients undergoing elective or urgent vascular surgery, especially after lower extremity bypass, endovascular abdominal aortic aneurysm repair and open infrarenal abdominal aortic aneurysm repair. The Vascular Study Group of New England Cardiac Rsk Index (VSG-CRI) more accurately predicts in-hospital cardiac events after vascular surgery.


This model was adapted from
Bertges DJ, Goodney PP, Zhao Y, Schanzer A, Nolan BW, Likosky DS, Eldrup-Jorgensen J, Cronenwett JL; The Vascular Study Group of New England Cardiac Risk Index (VSG-CRI) predicts cardiac complications more accurately than the Revised Cardiac Risk Index in vascular surgery patients, Vascular Study Group of New England. J Vasc Surg. 2010 Jun 4; 52 (1):5-12.