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Yashoda Hospitals Hitec City Hyderabad, Kothaguda, Telangana 500084
“The angiogram shows three blockages. One doctor says bypass, another says stents. How do we decide?”
MD, DM (Cardiology) · Interventional Cardiologist & Electrophysiologist✔ Medically reviewed⏱ 8 min read
What “3 Blockages” Really Means
Your heart is fed by three main arteries: the left anterior descending (LAD) artery at the front, the left circumflex on the side, and the right coronary artery. When significant narrowings are found in all three, doctors call it triple-vessel disease.
But the number alone does not tell the whole story. Three short, simple narrowings are very different from long, calcified blockages at branch points, or disease involving the left main artery, the trunk that supplies most of the left side of the heart.
First Question: Do All of Them Need Treatment?
A blockage that looks 60–70% on an angiogram may or may not be reducing blood flow significantly. Tests such as FFR or iFR (pressure-wire measurements) and intravascular imaging can show which narrowings truly matter. Sometimes, after careful assessment, only one or two arteries need treatment.
“Before choosing between stents and bypass, we first make sure we are treating the blockages that actually matter. The number on the report is the start of the conversation, not the end.”
Stents vs Bypass at a Glance
| Angioplasty with stents (PCI) | Bypass surgery (CABG) | |
|---|---|---|
| How it’s done | Through a small puncture in the wrist or groin; balloons and stents open the arteries from inside | Open-heart surgery; new routes for blood are created using arteries or veins from the chest, arm or leg |
| Anaesthesia | Usually local anaesthesia with mild sedation | General anaesthesia |
| Hospital stay | Often 1 to 3 days | Usually about a week |
| Back to routine | Typically within 1 to 2 weeks | Typically 6 to 12 weeks |
| Repeat procedures later | More likely than after bypass | Less likely |
| Often favoured when | Disease is less complex, or surgical risk is high | Disease is complex or diffuse, especially with diabetes |
The 5 Factors That Decide the Choice
Complexity of the blockages
Doctors often use the SYNTAX score, which grades length, calcium, branch points and total occlusions. Higher complexity tends to favour bypass.
Diabetes
In people with diabetes and complex multivessel disease, large studies have shown better long-term outcomes with bypass.
Heart pumping strength
A weak heart (low ejection fraction) influences both the benefits and the risks of each approach.
Surgical risk
Age, lung and kidney disease, frailty and previous surgery can make open surgery riskier, favouring stents.
Your preferences
Recovery time, work and family circumstances, and how you feel about surgery all matter.
When Stents Are Often Preferred, and When Bypass Is
🚩 Bypass is often favoured when
- Blockages are complex, long or heavily calcified
- You have diabetes with complex multivessel disease
- The left main artery is involved along with complex disease elsewhere
- Complete treatment with stents would be difficult
✅ Stents are often favoured when
- Blockages are less complex and suitable for stenting
- The risk of open-heart surgery is high
- You need a faster recovery and the anatomy allows it
- A heart attack is in progress and the culprit artery must be opened urgently
Questions to Ask Before You Decide
📝 Take this list to your appointment
Don’t delay if you have these symptoms
- Chest pain at rest or chest pain lasting more than 10 to 15 minutes
- Pain spreading to the jaw, arm or back with sweating or breathlessness
- Fainting or a sudden, severe breathlessness
Call 108 or go to the nearest emergency department. A heart attack needs immediate treatment.
Questions Families Ask
Is bypass always better for three blockages?
Can all three arteries be stented in one sitting?
How long do I have to decide?
Can medicines alone be enough?
Will I need lifelong medicines after either procedure?
📌 Remember these points
- “Three blockages” can mean very different things. Complexity matters.
- Not every narrowing needs treatment. Functional testing helps decide.
- Diabetes and complex disease often favour bypass; simpler disease or high surgical risk often favour stents.
- A heart team decision, with your questions answered, gives the best result.
Need clarity on stents vs bypass?
Bring your angiogram CD and reports. Dr. V. Rajasekhar will review your blockages, explain all options honestly and, where needed, discuss your case with the cardiac surgical team.
Dr. V. Rajasekhar (Dr. Rajasekhar Varada)
Dr. Rajasekhar performs complex coronary interventions, including image-guided angioplasty, rotablation, intravascular lithotripsy and laser angioplasty, and works closely with cardiac surgeons to recommend the right treatment for each patient.
This article is for general patient education and does not replace a personal medical consultation. Diagnosis and treatment depend on your individual symptoms, test results and overall health. References: ACC/AHA/SCAI Guideline for Coronary Artery Revascularization; ESC/EACTS Guidelines on Myocardial Revascularization; SYNTAX and FREEDOM trials.