CardiologyDr. Ajay KaulCardiac Surgery

Chairman, Cardiac Sciences, Fortis Hospital, Noida

Part 2 of 8 in Transforming Cardiac Care: Advances in Diagnosis, Surgery and Management

Minimally Invasive Cardiac Surgery: A New Standard for Heart Operations

December 1, 2024

For most of the history of heart surgery, access meant a sternotomy, splitting the breastbone down the middle to expose the heart directly. Dr. Ajay Kaul, Chairman of Cardiac Sciences at Fortis Hospital, Noida, opened his Jivo Healthcare masterclass for doctors across Africa by stating plainly that this is no longer necessary for any cardiac operation he performs. Valve replacement, coronary bypass and aneurysm repair can all now be done through one or two incisions of an inch or two, using the same small-access principle as laparoscopic abdominal surgery.

Three Goals Behind the Smaller Incision

The point of moving to minimally invasive cardiac surgery was never simply a smaller scar. Dr. Kaul described three specific aims behind the shift: making the procedure less invasive, keeping it as safe as the traditional approach, and preserving the same long-term results as open surgery. All three had to hold at once for the technique to be worth adopting broadly; a smaller incision that compromised safety or long-term durability would not have been progress.

What Recovery Actually Looks Like

The clinical case for the smaller incision shows up most clearly in recovery. Patients are typically extubated within six hours of surgery, spend a single day in intensive care, and are discharged on the fourth day. That timeline applies broadly across valve, bypass and aneurysm procedures done through this approach, a significant change from the multi-week recovery historically associated with a full sternotomy.

Two Cases From the Operating Table

Dr. Kaul shared two specific cases from this approach in his own practice. One patient underwent replacement of two heart valves in a single operation through this small-incision technique. Another had traveled from Tanzania for a major valve operation combined with closure of a hole in the heart, also performed this way.

Where the Technique Is Heading

The same underlying shift toward smaller access now extends to robotic cardiac surgery, where the surgeon operates from a console while a robotic system performs the procedure on the patient. Dr. Kaul described this as a natural extension of the same three goals: less invasive access, without compromising safety or long-term results.

This guide is based on a live Jivo Masterclass: Dr. Ajay Kaul taught doctors across Africa on December 1, 2024.

FROM THE LIVE Q&A

MO

Moderator

What innovative treatments are available for patients with Eisenmenger syndrome?

AK

Dr. Ajay Kaul

Eisenmenger syndrome develops when an operable heart condition is left untreated for long enough that it damages the lungs, eventually making the lungs too stiff for any treatment to help. At that stage, the only option is a combined heart and lung transplant. It is a very difficult treatment, and the success rate is only around 40 to 50 percent.

See all 11 questions from this masterclass →

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Frequently Asked Questions

What are the different complications of getting an artificial heart (LVAD)?

There are three main complications. First, because the device requires blood thinners, there is a risk of bleeding. Second, there is a risk of infection. Third, an artificial heart is only designed to function for about five to seven years, so it should ideally be converted to a transplant as early as possible rather than treated as a permanent solution, though I have seen patients go 10, 12, even 15 years on the device without a transplant.

Can the same minimally invasive technique be used for a carotid artery aneurysm?

Yes, if the CT angiogram of the carotid artery shows that a stent can be placed, the aneurysm can be treated with an intravascular stent through a single small puncture in the leg, making it a minimally invasive procedure.

Following up on the complications of artificial heart transplantation, what about a further concern he described as 'autonomic surgery' in this context?

Dr. Kaul reiterated the transplant complications he had already covered, then said that there was nothing called autonomic surgery that he was aware of, and that the term appeared to be a translation error. The exchange closed with a request for Dr. Kamba to put the question in writing in the chat so it could be understood correctly.

Are there any techniques available for treating tetralogy of Fallot?

Tetralogy of Fallot is very well treatable, and children who are operated on go on to lead a normal life. I have patients who are now 25 to 30 years old and doing very well. Depending on the exact type of tetralogy, the results are very good.

How does an artificial heart actually work?

The heart is essentially a pump: blood comes in from the body, is pushed to the lungs to be purified, and is then pushed back out to the body. Building an artificial pump that does not damage or clot the blood took nearly 50 years to perfect. The device is based on magnetic levitation technology, similar to Japan's high-speed trains that run without touching the rails, so the pump's rotor never actually makes contact with the blood it is moving. In India, one artificial heart costs around 1.5 crore rupees, which is the major cost barrier.

What is the typical recovery timeline after minimally invasive cardiac surgery?

Patients are typically extubated within six hours of surgery, spend one day in intensive care, and are discharged on the fourth day.

Can two heart valves be replaced through a small incision in a single operation?

Yes. Dr. Kaul described a patient in whom two heart valves were replaced through this minimally invasive approach in one operation.

Is robotic heart surgery part of the same shift toward smaller incisions?

Yes, robotic cardiac surgery, where the surgeon operates from a console while a robotic system performs the procedure, extends the same principle of less invasive access.

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