Heart bypass surgery, medically called Coronary Artery Bypass Grafting (CABG), is a life-saving cardiac surgery that is performed to restore blood flow to blocked coronary arteries. The heart muscle may not get enough oxygen-rich blood when plaque formation causes the cardiac arteries to narrow significantly.
In such cases, heart bypass surgery can greatly lower the chance of a heart attack, relieve chest pain, and increase long-term survival in these situations.
What Is Heart Bypass Surgery?
A treatment called ‘heart bypass surgery’ opens up a new channel for blood to circulate through clogged arteries. Healthy blood arteries from the arm, leg, or chest wall are used by surgeons to connect them past the obstruction.
This allows blood to “bypass” the narrowed segment and restore circulation to the heart muscle.
Cardiac bypass surgery is a type of open-heart surgery, but not all open-heart surgeries are bypass procedures. The term “open heart surgery” refers to any operation where the chest is opened, while CABG specifically treats blocked coronary arteries.

Why Might I Need Cardiac Bypass Surgery?
Surgery is not always necessary for clogged arteries. However, when blockages are severe or include many vessels, cardiac bypass surgery is advised.
You may need cardiac bypass surgery if you have the following:
- Severe coronary artery disease
- Blockage in three major heart arteries
- Left main coronary artery narrowing
- Ongoing chest pain despite medication
- Failed stent placement
- Diabetes with multi-vessel disease
Doctors determine the need for surgery after diagnostic tests such as coronary angiography, stress testing, and echocardiography.
If you are experiencing persistent chest discomfort or shortness of breath, early consultation with a qualified heart surgeon in Lahore can prevent serious complications.
How Does Heart Bypass Surgery Save Lives?
A heart attack or injury to the heart muscle may result from blocked coronary arteries. By refilling the blood supply before irreparable damage happens, coronary bypass surgery increases survival.
The benefits of cardiac bypass surgery include:
- Reduced risk of future heart attacks
- Long-term relief from angina (chest pain)
- Improved heart-pumping function
- Better quality of life
- Increased life expectancy in selected patients
For individuals with complex blockages, cardiac bypass surgery often provides more durable results than stents alone.
What Happens Before Heart Bypass Surgery?
Preparation is an important part of safe cardiac surgery. Before surgery, you may undergo:
- Blood tests
- Chest X-ray
- Electrocardiogram (ECG)
- Coronary angiography
- Medication review
Your doctor may advise you to stop certain medications temporarily. You will also receive fasting instructions before the operation. Maintaining open lines of communication with your heart surgery team helps lower risks and guarantees a successful procedure.
What Happens During the Cardiac Bypass Surgery Procedure?
Understanding the heart bypass surgery procedure can help reduce anxiety. During surgery:
- You receive general anaesthesia.
- A chest incision is made.
- A healthy blood vessel is removed for grafting.
- The blocked artery is bypassed.
- Blood flow is restored.
The average heart bypass surgery time is between 3 and 6 hours, depending on the number of arteries bypassed.
Surgeons may perform the procedure using a heart-lung machine (on-pump) or on a beating heart (the off-pump technique), depending on the patient’s condition.

What Are the Types of Cardiac Bypass Surgery?
The type of coronary bypass surgery depends on how many arteries are blocked.
- Single bypass: One artery bypassed
- Double bypass: Two arteries bypassed
- Triple bypass: Three arteries bypassed
- Quadruple bypass: Four arteries bypassed
The number reflects the extent of coronary artery disease.
What Are the Risks and Complications?
Like any major heart operation, bypass surgery carries certain risks. However, advances in heart surgery have significantly improved its safety over time. Possible complications include the following:
- Bleeding
- Infection
- Irregular heartbeat
- Stroke (rare)
- Temporary confusion
Choosing an experienced cardiac surgeon reduces complications from cardiac surgery and improves outcomes.
Recovery After Cardiac Bypass Surgery
Recovery happens in stages and requires patience.
Hospital Stay
Most patients stay in the ICU for 1 to 2 days and in the hospital for about a week.
First Few Weeks at Home
- Gradual increase in walking
- Pain management
- Wound care
- Avoid heavy lifting
Full Recovery Timeline
Complete recovery usually takes 6 to 12 weeks.
Cardiac rehabilitation plays an important role in strengthening the heart after surgery.
Lifestyle Changes After Surgery
Long-term success depends on lifestyle modification. Coronary bypass surgery treats blockages but does not cure underlying artery disease.
Important changes include:
- Eating a heart-healthy diet
- Controlling blood pressure and diabetes
- Avoiding smoking
- Maintaining a healthy weight
- Regular follow-ups
What Is the Success Rate of Heart Bypass Surgery?
Cardiac bypass surgery has a high success rate when performed in suitable candidates. Arterial grafts can remain open for many years, especially when patients follow medical advice.
Many patients continue to live active, productive lives more than 10 years after surgery.
When Should I Seek Urgent Care After Surgery?
Contact your doctor immediately if you experience:
- Fever
- Chest pain
- Shortness of breath
- Rapid heartbeat
- Wound discharge
Early reporting of symptoms prevents complications.
Why Choose Dr. Ghulam Sarwar for Heart Bypass Surgery?
Successful coronary bypass surgery depends heavily on surgical expertise and structured aftercare.
Dr. Ghulam Sarwar provides the following:
- Comprehensive cardiac evaluation
- Evidence-based surgical planning
- Advanced cardiac surgery techniques
- Dedicated post-operative monitoring
If you have been advised to consider heart bypass surgery, consult a trusted heart surgeon in Lahore to discuss your treatment options.
Timely intervention can protect your heart and restore your confidence in daily life. Schedule a consultation with Dr. Ghulam Sarwar and take the first step toward better heart health.