Minimally Invasive Cardiac Surgery

Published with the inputs from Dr Baburajan A K, Cardiovascular Thoracic Surgeon, Baby Memorial Hospitals- Kozhikode

Minimally Invasive Cardiac Surgery (MICS) is an advanced heart surgery technique performed through small incisions instead of the large cuts used in traditional open-heart surgery. It allows surgeons to operate on the heart using specialized instruments and video-assisted technology, resulting in less pain, faster recovery, and smaller scars.

MICS can be used to treat various heart conditions, such as valve repair or replacement, coronary artery bypass, atrial septal defect (ASD) closure, and certain congenital heart diseases.

What is minimally invasive cardiac surgery?

Minimally invasive cardiac surgery is a keyhole surgical approach to heart operations. Instead of opening the entire breastbone (sternum), surgeons make small incisions between the ribs to reach the heart. This technique uses endoscopic or robotic assistance for enhanced precision and visualization. The result is the same surgical correction as open-heart surgery — but with less trauma, minimal scarring, and quicker healing.

When is MICS recommended?

Your cardiac surgeon may recommend MICS for:

• Heart valve diseases (mitral or aortic valve repair/replacement)
• Coronary artery disease (minimally invasive bypass)
• Atrial septal defect (ASD) or other congenital defects
• Atrial fibrillation surgery (maze procedure)
• Cardiac tumor removal
• Re-do cardiac surgeries (when re-opening the sternum is risky)

Each patient’s suitability is determined after thorough evaluation with echocardiography, CT scan, and cardiac catheterization.

How is minimally invasive cardiac surgery performed?

• The procedure is done under general anesthesia.
• A small incision (5–7 cm) is made on the side of the chest.
• Using special instruments and high-definition cameras, the surgeon performs the required heart repair or replacement.
• The heart may be temporarily connected to a heart-lung machine (as in open-heart surgery) to maintain circulation and oxygenation of blood
• Once completed, the incisions are closed cosmetically.

At BMH, advanced robotic-assisted and video-assisted MICS systems are available to ensure precision, safety, and superior outcomes.

Is MICS safe?

Yes. Minimally invasive cardiac surgery is safe and effective when performed by experienced cardiac surgeons. It offers the same long-term results as traditional open-heart surgery with fewer complications. Modern technology, including 3D visualization, advanced monitoring, and robotic instruments, has greatly improved the safety and precision of MICS.

What are the benefits of minimally invasive cardiac surgery?

• Smaller incisions and minimal scarring
• Less pain and reduced blood loss
• Lower risk of infection
• Shorter hospital stay (3–5 days)
• Faster recovery and return to work
• Improved cosmetic appearance
• Lower overall physical and emotional stress

Who is eligible for MICS?

Most patients requiring heart surgery can be considered for MICS, but suitability depends on:

• Type and complexity of heart disease
• Overall health and heart function
• Previous heart surgeries or chest conditions

Your cardiac surgeon will evaluate your case and recommend the safest and most effective approach.

What is recovery like after MICS?

• Hospital stay: 3–5 days (versus 7–10 days for open-heart surgery)
• Return to routine activities: Within 2–3 weeks
• Pain and discomfort: Significantly less than traditional surgery
• Follow-up: Regular visits to monitor heart function and healing

Most patients resume normal life much faster, with minimal restrictions.

Is robotic heart surgery part of MICS?

Yes. Robotic-assisted cardiac surgery is an advanced form of MICS where a robotic system helps the surgeon perform precise movements through very small incisions. It is used for procedures such as mitral valve repair, ASD closure, and coronary bypass, offering exceptional accuracy and cosmetic outcomes.

Connect with Our Experts Today

If you or a loved one has been advised heart surgery, the Cardiothoracic Surgery & Cardiology Team at Baby Memorial Hospital (BMH) offers state-of-the-art Minimally Invasive Cardiac Surgery (MICS) — including robotic-assisted and video-assisted techniques for safer procedures, faster recovery, and better quality of life.

👉 Book an Appointment Online or visit BMH to consult our expert cardiac surgeons and learn about advanced heart surgery options.