Cardiac Surgery Certification Exam Coronary Artery Bypass Grafting (CABG) 2

Question 1

The proximal anastomosis of a saphenous vein graft in conventional CABG is most commonly placed on:

Accepted Answer

The ascending aorta

Answer

Proximal vein graft anastomoses are most commonly placed on the ascending aorta, though no-touch aortic techniques are increasingly used to reduce embolic risk.

Question 2

Intraoperative graft flow measurement using transit-time flowmetry is used to:

Accepted Answer

Verify graft patency and detect technical errors before chest closure

Answer

Transit-time flowmetry measures actual blood flow through each graft, identifying low-flow or pulsatility index abnormalities suggesting technical problems requiring revision.

Question 3

Perioperative myocardial infarction after CABG is most often caused by:

Accepted Answer

Early graft occlusion or technical anastomotic failure

Answer

Early graft occlusion due to technical anastomotic issues, thrombosis, or spasm is the most common cause of perioperative MI after CABG.

Question 4

Aspirin after CABG should be initiated postoperatively primarily to:

Accepted Answer

Improve saphenous vein graft patency and reduce cardiovascular events

Answer

Early aspirin initiation (within 6 hours postoperatively) improves vein graft patency by inhibiting platelet aggregation at anastomotic sites.

Question 5

The hybrid coronary revascularization approach combines:

Accepted Answer

LIMA-to-LAD CABG with percutaneous coronary intervention (PCI) for non-LAD lesions

Answer

Hybrid revascularization uses the durable LIMA-LAD surgical graft for the LAD territory and PCI stenting for other vessels, combining the best of both approaches.

Cardiac Surgery Certification Exam Practice Test

Cardiac Surgery Certification Exam Practice Test

Cardiac Surgery Certification Exam Coronary Artery Bypass Grafting (CABG) 2