Cardiologist vs Cardiac Surgeon: What’s the Difference?

Two different doctors, both focused on the same organ, but the path each one takes looks nothing alike. One relies on medication, imaging, and catheter-based procedures to manage heart conditions. The other steps in when the problem needs a surgical solution. Knowing which one to see, and when, changes how a heart condition actually gets treated.

According to Dr. Vishal Khullar, a leading Cardiac Surgeon in Mumbai, “Cardiologists and surgeons aren’t competing specialties, they’re two halves of the same care team. I only get involved once medicine and catheter options have been weighed and surgery becomes the better route.”

The handoff isn’t random. Certain findings point straight toward surgery.

Blocked arteries beyond stenting: Stents work fine for one or two blockages. Once several arteries are involved, bypass surgery usually takes over.

Valve disease that’s progressed: Medication can help manage symptoms, but it cannot correct severe valve disease. If the patient’s anatomy rules out TAVR, valve repair or replacement may be considered.

Structural or congenital defects: Some defects, present from birth or developed later, just aren’t fixable with a catheter. In such cases, surgery may offer an appropriate solution.

Heart failure that’s exhausted medical options: Once medication and devices stop being enough, a cardiac surgeon may evaluate the patient for an LVAD or a heart transplant.

That same cardiologist-to-surgeon handoff plays out clearly in valve disease. Our comparison of TAVR vs open surgery shows exactly how that decision gets made.

Dr. Vishal Khullar has spent over 30 years as a practicing cardiac surgeon, with training at Cleveland Clinic and Mayo Clinic in the US. He works closely with cardiologists on cases that cross into surgical territory, including joint heart-team reviews for complex decisions. That combination of surgical training and multidisciplinary collaboration shapes how each case gets evaluated. 

1. PMC (NIH) — Variations in Clinical Decision-Making Between Cardiologists and Cardiac Surgeons: A Case for Management by Multidisciplinary Teams  
2. NCBI Bookshelf (NIH) — Cardiac Surgery (StatPearls)

Disclaimer: This blog is for general informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment; please consult a qualified doctor for any health concerns.