Heart Bypass Surgery
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Heart Bypass Surgery
Heart bypass surgery, or coronary artery bypass grafting (CABG), is a procedure that aims to improve blood circulation to the heart muscle. It is typically performed when the coronary arteries, which supply blood to the heart, become blocked or narrowed. The surgery creates an alternative route for blood to flow to the heart, restoring its function. This procedure is often essential for saving lives and can alleviate symptoms such as chest pain, fatigue, and breathlessness, leading to a significant improvement in the patient’s quality of life.

Why is Heart Bypass Surgery Needed?
Heart bypass surgery is usually recommended for people with severe coronary artery disease (CAD). CAD occurs when the coronary arteries become narrowed or blocked due to the buildup of plaque, which restricts blood flow to the heart.
When medication or other treatments like lifestyle changes or stenting aren’t enough to relieve symptoms or lower the risk of a heart attack, heart bypass surgery may be recommended. By improving blood flow to the heart, this surgery helps prevent future cardiac events and reduces the risk of heart failure.
Risks of Heart Bypass Surgery
Heart bypass surgery, while generally safe and effective, does carry certain risks due to the heart’s critical function. The likelihood of complications can vary based on factors such as age, overall health, and any pre-existing medical conditions. With an experienced surgical team, the risk of severe complications remains low. However, patients should be aware of potential risks, which include:
- Infection at the incision site or in the chest
- Bleeding during or after the procedure
- Blood clots, which can lead to stroke or other complications
- Irregular heart rhythms (arrhythmias)
- Heart attack or stroke
- Kidney complications or failure due to surgery
What Happens During a Heart Bypass Surgery?
Heart bypass surgery consists of several important steps to restore blood flow around a blocked artery. Here’s a step-by-step breakdown of what happens:
The patient is administered general anaesthesia, ensuring they are asleep and pain-free throughout the surgery.
A surgeon makes an incision in the chest, usually along the breastbone, to access the heart. In some cases, a minimally invasive approach may be used with smaller incisions.
In many cases, the heart is temporarily stopped, and a heart-lung machine is used to circulate blood and oxygen throughout the body during the procedure. This allows the surgeon to work on a still heart.
The surgeon removes a healthy blood vessel (often from the leg, chest, or arm) to use as a graft. This graft will create a new pathway for blood flow around the blocked artery.
The graft is attached to the heart, rerouting blood around the blocked section of the artery. This restores blood flow to the heart muscle.
Once the bypass is complete, the heart is restarted, and the heart-lung machine is disconnected, allowing the heart to resume pumping blood on its own.
The surgeon closes the chest incision with stitches or staples, and the patient is moved to the recovery room for close monitoring.
This procedure generally takes 3-6 hours, depending on the number of arteries being bypassed and the patient’s individual health needs.
How Long Does It Take to Recover from Heart Bypass?
Recovery from heart bypass surgery can vary, but most patients spend a week in the hospital post-surgery and may need 6-12 weeks for full recovery at home. During this time, patients gradually return to normal activities, starting with light walking and breathing exercises and moving towards more active routines as their strength improves.
Cardiac rehabilitation programs are often recommended to aid in recovery, improve heart health, and reduce the chances of future heart problems. Follow-up appointments are crucial to monitor progress and ensure optimal recovery.
Life After a Heart Bypass Surgery
Recovering from heart bypass surgery requires ongoing lifestyle changes to support heart health and prevent future issues. Following the procedure, patients are encouraged to adopt habits that reduce the risk of further blockages and maintain overall cardiovascular wellness. Key steps for a heart-healthy lifestyle include:
Focus on a balanced diet rich in fruits, vegetables, whole grains, lean proteins, and healthy fats to help lower cholesterol and reduce plaque buildup.
Engage in moderate physical activity, such as walking, cycling, or swimming, to strengthen the heart. Consult your doctor for an appropriate exercise plan.
If you smoke, quitting is crucial. Smoking increases the risk of artery blockages and heart disease.
Practise relaxation techniques, like deep breathing, meditation, or yoga, to help reduce stress, which can impact heart health.
Regular check-ups help ensure that blood pressure and cholesterol levels stay within a healthy range, reducing strain on the heart.
Follow your doctor’s guidance on medications for blood pressure, cholesterol, or blood thinning, which help prevent complications.
Achieving and maintaining a healthy weight can ease strain on the heart and improve overall health.
Adopting these lifestyle changes can greatly benefit your recovery and long-term heart health, reducing the possibility of future cardiovascular issues.
Heart Bypass Surgery Cost in Singapore
The recommended surgeon’s fee for a coronary artery bypass surgery in Singapore ranges from $26,596 – $38,695 at private hospitals. This cost covers the surgeon’s expertise but excludes additional hospital and consumable fees, which can vary based on the facility and specific requirements of the procedure.
Heart Surgeons in Singapore
At O2 Lung Centre, our team comprises specialised cardiothoracic surgeons with deep expertise and advanced training to deliver comprehensive and personalised care for patients undergoing heart bypass surgery and other cardiovascular procedures.
With significant experience in managing complex heart conditions, our surgeons approach each case with precision and a patient-centred focus, guiding you through every stage of your heart health journey.
WhatsApp our clinic at Gleneagles Hospital or Mount Elizabeth Orchard Hospital for more information and personalised treatment options.