Heart Bypass Surgery (CABG)

Heart Bypass Surgery, medically known as Coronary Artery Bypass Grafting (CABG), is performed when the arteries supplying blood to the heart become narrowed or blocked due to cholesterol buildup.
The surgery creates a new pathway for blood flow using healthy blood vessels taken from the chest, leg, or arm—bypassing the blocked arteries.

The aim is clear and practical: reduce chest pain, prevent heart attacks, improve heart function, and help patients return to a normal life.

CABG may be advised if you have:

• Repeated or severe chest pain (angina)
• Shortness of breath during routine activities
• Fatigue even after mild exertion
• Blockages seen in coronary angiography
• Reduced heart pumping capacity
• History of heart attack with ongoing symptoms

Some patients may not have strong symptoms but still require surgery due to critical blockages.

Common factors that lead to blocked heart arteries include:

• High blood pressure
• Diabetes
• Smoking or tobacco use
• High cholesterol
• Obesity and lack of exercise
• Family history of heart disease
• Stressful lifestyle
• Increasing age

Before bypass surgery, patients go through a detailed evaluation:

• Coronary angiography
• ECG, Echocardiography
• Blood tests and chest X-ray
• Lung function and kidney assessment
• Stopping smoking and certain medications
• Counseling about surgery, recovery, and lifestyle changes

Proper preparation helps reduce complications and improves recovery.

Heart bypass surgery is done under general anesthesia.

Steps include:

• Opening the chest through the breastbone
• Taking healthy blood vessels (graft)
• Bypassing the blocked coronary arteries
• Restoring normal blood flow to the heart

Types of CABG:

• On-pump CABG (heart-lung machine used)
• Off-pump CABG (beating heart surgery)
• Minimally invasive CABG (selected cases)

The surgery usually takes 3–5 hours, depending on the number of bypasses required.

After surgery:

• Patient stays in ICU for 24–48 hours
• Pain and breathing are carefully managed
• Walking usually starts within 2–3 days
• Hospital stay: 5–8 days
• Stitches removed after 7–10 days
• Full recovery takes 6–12 weeks

Lifestyle changes and cardiac rehabilitation are essential for long-term success.

Outcomes depend on the individual case. Ask the treating specialist what to expect for you.

Is heart bypass surgery risky?
Like any major surgery, it carries risks, but with experienced teams, it is considered very safe.

How long do bypass grafts last?
Most grafts function well for 10–15 years or more, especially with lifestyle control.

Will I need lifelong medicines after surgery?
Yes. Medicines help protect the heart and prevent future blockages.

When can I return to normal activities?
Light activities in 2–3 weeks; full routine usually after 2–3 months.

Can bypass surgery be avoided?
In early disease, medicines or angioplasty may help. Advanced blockages often need bypass surgery.