Which procedure is used to bypass blocked coronary arteries?

Which procedure is used to bypass blocked coronary arteries?

• A. PCI with Stent
• B. Coronary Artery Bypass Grafting (CABG)
• C. Pacemaker
• D. Valve Replacement

Answer: (B)

The idea being tested is creating new pathways for blood to reach the heart muscle when a coronary artery is blocked. Coronary artery bypass grafting achieves this by taking graft vessels (often from the internal thoracic artery or a vein) and attaching them to the aorta and to coronary arteries beyond the blockage. This creates a detour around the obstructed segment, restoring blood flow to the heart muscle that’s at risk of ischemia. It’s particularly useful in multivessel disease or when catheter-based approaches aren’t suitable. In contrast, procedures that open the existing artery within the vessel itself, such as placing a stent, relieve the narrowing but do not create a new route for blood flow around the blockage. Pacemakers address rhythm problems, and valve replacements fix valvular disease, neither of which bypass coronary blockages.

The idea being tested is creating new pathways for blood to reach the heart muscle when a coronary artery is blocked. Coronary artery bypass grafting achieves this by taking graft vessels (often from the internal thoracic artery or a vein) and attaching them to the aorta and to coronary arteries beyond the blockage. This creates a detour around the obstructed segment, restoring blood flow to the heart muscle that’s at risk of ischemia. It’s particularly useful in multivessel disease or when catheter-based approaches aren’t suitable.

In contrast, procedures that open the existing artery within the vessel itself, such as placing a stent, relieve the narrowing but do not create a new route for blood flow around the blockage. Pacemakers address rhythm problems, and valve replacements fix valvular disease, neither of which bypass coronary blockages.