✅ Because LIMA is not a vein.
LIMA is a living artery.
💡 What makes LIMA so special?
✅ 1. It is naturally designed for high pressure & high flow
This artery supplies the chest wall every second of life.
When connected to the heart, it delivers strong, consistent blood for decades.
✅ 2. It resists cholesterol & blockages
Unlike vein grafts that can develop plaque,
LIMA stays clean, smooth, and flexible.
That is why LIMA graft patency at 20 years is 90%+ in many studies.
✅ 3. It heals and adapts
After bypass, LIMA actually grows and strengthens —
just like a new highway expanding for more traffic.
✅ 4. It matches the heart’s rhythm
Both are arteries.
Both beat with every heartbeat.
This natural compatibility makes flow long-lasting.
✅ 5. It protects from future heart attacks
When LIMA is connected to the LAD (the widow-maker artery),
the most critical part of the heart gets a permanent, durable lifeline.
This is why international guidelines (ACC/AHA/ESC) say:
➡ For CABG, LIMA to LAD is the gold standard
➡ Best long-term results
➡ Best survival
➡ Less repeat procedures
➡ Better protection from future events
✅ How long can LIMA work?
✔ 15 years
✔ 20 years
✔ 25+ years in many patients
Some stay open for life.
That is why Total Arterial Bypass is the future —
LIMA + Radial artery = long-term survival, especially in diabetics and young patients.
✅ Simple message for patients & families
If you or your loved one needs bypass:
Ask your surgeon — “Will you use LIMA?”
Because stents may need repeat work…
veins may wear out earlier…
but LIMA is the gift that keeps the heart alive for decades.
LIMA is not just a graft.
It is a second life for the heart.
— Dr. Devraj Kumar
Senior Cardiac Surgeon
(CABG | Valve Surgery | Total Arterial Revascularization)
