Dr. Kunal Sarkar - Leading Cardiac Surgeon In Kolkata & India: Experience, Expertise, CABG, MICS & Heart Surgery
- 16th September, 2026
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When a patient is advised to undergo bypass surgery, valve surgery or another major cardiac procedure, choosing the right cardiac surgeon becomes one of the most important decisions for the patient and family.
In Kolkata, Dr. Kunal Sarkar is one of the most experienced and widely recognised names in cardiovascular and thoracic surgery. There is no objective medical standard that identifies one doctor as the single “best cardiac surgeon” for every patient, but Dr. Sarkar's documented surgical experience, specialist qualifications and work in complex coronary surgery make him a prominent option for patients looking for an experienced cardiac surgeon in Kolkata.
He is currently listed by Manipal Hospitals, EM Bypass, Kolkata, as Director and Senior Consultant – Cardiovascular & Thoracic Surgery. Manipal reports that he has more than 30 years of surgical experience and has performed over 40,000 heart surgeries, including more than 32,000 coronary artery bypass grafting procedures.
For information about cardiac surgeons, hospitals and heart-treatment options in Kolkata, patients can contact Mediguide India at +91 8001700199. For Online Appointment: https://www.mediguides.in/doctors/dr.-kunal-sarkar
Who Is Dr. Kunal Sarkar?
Dr. Kunal Sarkar is a senior cardiovascular and thoracic surgeon based in Kolkata. His clinical work focuses primarily on adult cardiac surgery, particularly coronary artery bypass surgery, complex coronary disease, valve surgery, aortic surgery, minimally invasive cardiac surgery and difficult repeat operations.
His official website describes him as a cardiothoracic and vascular surgeon with more than three decades of experience and identifies him as a senior figure in complex cardiovascular surgery. His current hospital affiliation is with Manipal Hospital, EM Bypass, Mukundapur, Kolkata.
Patients sometimes refer to cardiac surgeons and cardiologists interchangeably, but the two specialties are different. A cardiologist primarily diagnoses and medically or catheter-based treats heart disease, while a cardiac surgeon performs operations such as CABG, valve repair or replacement and surgery on the aorta. In many complex cases, cardiologists and cardiac surgeons work together as part of a multidisciplinary heart team.
Dr. Kunal Sarkar's Qualifications
Dr. Sarkar's currently listed qualifications are:
MBBS | DNB – Cardiothoracic Surgery | FRCS (Edinburgh) | FRCS (Glasgow)
Both his official website and Manipal Hospitals list these qualifications. His official profile also states that he has served as faculty at Imperial College.
An earlier TEDx biography states that he graduated from Medical College, Calcutta and spent a substantial part of his early cardiac-surgery career training and working in the United Kingdom, including London, Liverpool and Hull.
This combination of Indian postgraduate training, Royal College fellowships and international exposure forms the background to his long career in cardiac surgery.
More Than 30 Years of Experience in Heart Surgery
According to Manipal Hospitals, Dr. Sarkar has more than 30 years of surgical experience and has performed 40,000+ heart operations, including over 32,000 CABG procedures. The hospital particularly highlights his experience in off-pump coronary surgery, complex CABG, total arterial bypass grafting and minimally invasive cardiac surgery.
These figures are reported by his current hospital and should be understood as institutional profile data rather than an independent national ranking.
For a patient, the number of operations alone should not determine the choice of surgeon. The type of disease, complexity of surgery, hospital infrastructure, multidisciplinary team, expected risks and the surgeon's experience with the specific procedure are also important.
Dr. Kunal Sarkar's Main Areas of Cardiac Surgery
His current Manipal profile lists a broad range of advanced cardiac procedures. Major areas include off-pump CABG, total arterial bypass grafting, complex CABG with endarterectomy, combined bypass and valve surgery, minimally invasive cardiac surgery, aortic aneurysm and dissection surgery, redo cardiac operations, adult congenital heart surgery, ventricular assist devices and ECMO.
Below are some of these areas explained in simpler language.
Coronary Artery Bypass Grafting – CABG
CABG is commonly called bypass surgery.
Coronary arteries supply oxygen-rich blood to the heart muscle. When significant blockages reduce blood flow, surgeons can use blood vessels taken from elsewhere in the body to create a new route around the obstructed artery.
The American Heart Association explains that CABG creates new pathways around narrowed or blocked coronary arteries to restore blood flow to heart muscle. It may be considered in patients with significant coronary artery disease depending on the location and extent of disease, symptoms and overall clinical condition.
Dr. Sarkar's current hospital profile reports more than 32,000 bypass procedures during his surgical career.
Off-Pump or Beating-Heart Bypass Surgery
Traditional CABG may use a heart-lung machine while the heart is temporarily stopped.
In off-pump CABG, however, the surgeon performs the bypass while the heart continues beating.
Dr. Sarkar's official website states that more than 90% of his coronary operations are performed without a heart-lung machine, while Manipal specifically lists off-pump CABG as a major area of his expertise.
Whether off-pump or conventional CABG is preferable depends on the individual patient's anatomy, disease pattern, associated conditions and surgical assessment. One technique is not automatically better for every patient.
Complex Coronary Artery Surgery
Some patients do not have a straightforward single or double coronary blockage.
They may have:
- Multiple severely diseased arteries
- Diffuse coronary artery disease
- Calcified vessels
- Previous angioplasty or stents
- Previous bypass surgery
- Diabetes with extensive coronary disease
- Associated valve disease
Dr. Sarkar's listed expertise includes complex CABG with endarterectomy and combined CABG with valve surgery.
These procedures require detailed evaluation because treatment must be individualised according to coronary anatomy and the patient's overall risk.
Total Arterial Bypass Grafting
A bypass graft can be created using either arteries or veins.
Total arterial bypass grafting uses arterial conduits for coronary bypass. Dr. Sarkar's Manipal profile specifically identifies total arterial bypass grafting among his areas of expertise.
The choice of grafts depends on factors such as patient age, coronary anatomy, diabetes, other medical conditions and surgeon assessment.
Minimally Invasive Cardiac Surgery – MICS
One of Dr. Sarkar's important areas of clinical interest is Minimally Invasive Cardiac Surgery (MICS).
Traditional open-heart surgery generally requires a larger chest incision and often involves dividing the breastbone or sternum. Minimally invasive approaches use smaller incisions in selected patients.
Manipal Hospitals explains that MICS can avoid full splitting of the breastbone in suitable procedures and may offer benefits such as reduced postoperative discomfort and faster recovery for appropriately selected patients.
Dr. Sarkar's official website and Manipal profile both list minimally invasive cardiac surgery among his principal areas of work.
However, not every patient is a candidate for MICS. The type of heart disease, previous surgery, arterial anatomy, valve pathology and overall health determine whether a minimally invasive approach is appropriate.
Heart Valve Repair and Replacement
The heart contains four valves that control the direction of blood flow.
Valve disease can occur when a valve becomes too narrow—known as stenosis—or fails to close properly, causing regurgitation or leakage.
Dr. Sarkar's hospital profile lists expertise in both heart-valve repair and replacement, including complex combined CABG and valve operations.
The American Heart Association notes that repair is preferred in suitable cases when the patient's own valve can be preserved, while severely damaged valves may require replacement. The exact treatment depends on the valve involved, severity and individual patient characteristics.
Aortic Aneurysm and Aortic Dissection Surgery
The aorta is the body's largest artery.
An aortic aneurysm occurs when part of the aortic wall becomes abnormally enlarged, while an aortic dissection occurs when a tear develops within layers of the aortic wall.
These can become serious or life-threatening cardiovascular conditions.
Dr. Sarkar's current Manipal profile specifically includes aortic aneurysm and aortic dissection repair among his areas of expertise.
Patients with complex aortic disease often require specialised imaging, experienced surgical teams and advanced postoperative critical-care support.
Redo Cardiac Surgery
Some patients require another cardiac operation years after their first surgery.
For example, a patient may previously have undergone CABG or valve replacement and later require another procedure.
These are known as redo cardiac surgeries and can be technically more challenging because of scar tissue, previous grafts and changes in cardiac anatomy.
Both Dr. Sarkar's official website and Manipal Hospitals highlight complex redo cardiac surgery as an area of experience.
ECMO, VAD and Advanced Heart Support
Dr. Sarkar's hospital profile also lists experience with advanced circulatory-support systems including ECMO and ventricular assist devices (VADs).
ECMO can temporarily support heart and/or lung function in critically ill patients in carefully selected circumstances. A ventricular assist device is a mechanical pump that helps support blood circulation when the heart cannot pump adequately.
These treatments are generally used within specialist cardiac centres with intensive-care and multidisciplinary support.
Adult Congenital Heart Disease
Some people are born with structural abnormalities of the heart that continue into adulthood or require further treatment later in life.
Dr. Sarkar's listed expertise includes surgical management of congenital heart defects in adults.
Such patients may require particularly specialised care because previous childhood procedures can make adult surgery more complex.
Research and Academic Contribution
Alongside clinical practice, Dr. Sarkar has been involved in academic cardiac surgery.
Manipal Hospitals currently reports that he has authored more than 14 research publications, with areas including TAVI, ischemic mitral regurgitation, preoperative management of diabetic CABG patients and multidisciplinary heart-team decision-making.
His official website also lists him as a past president of the Indian Association of Cardiovascular & Thoracic Surgeons (IACTS) and a past president of the Society of Coronary Surgeons, India.
These leadership roles reflect involvement not only in operating-room practice but also in the wider professional cardiac-surgery community.
Kolkata Heart Foundation
Dr. Sarkar is also associated with the Kolkata Heart Foundation, where his official website identifies him as Chairman.
His current website lists his Kolkata Heart Foundation chamber at:
42/1A, Harish Mukherjee Road, Bhowanipore, Kolkata – 700025.
The website currently lists consultation sessions there on selected Tuesdays, Thursdays and Fridays, although schedules can change and patients should confirm before travelling.
Manipal Hospital, EM Bypass, Kolkata
Dr. Sarkar currently works at Manipal Hospital, EM Bypass, Mukundapur, where he is listed as Director and Senior Consultant – Cardiovascular & Thoracic Surgery.
The hospital's address is:
127, Mukundapur, E.M. Bypass, Kolkata – 700099, West Bengal.
The CTVS department provides cardiac and vascular surgical services supported by cardiologists, cardiac surgeons, anaesthetists, intensive-care specialists, rehabilitation teams and associated clinical staff.
When Should You Consult a Cardiac Surgeon?
Being referred to a cardiac surgeon does not automatically mean that surgery is unavoidable.
The purpose of surgical consultation is often to evaluate whether an operation offers meaningful benefit compared with medicines, angioplasty, catheter-based procedures or continued monitoring.
A cardiac-surgery opinion may be particularly relevant when a patient has severe or multiple coronary artery blockages, complex coronary disease, significant heart-valve disease, an aortic aneurysm or dissection, previous heart surgery requiring a repeat procedure, or advanced heart disease where mechanical circulatory support is being considered.
For coronary artery disease, treatment should ideally be decided after evaluating coronary angiography, symptoms, heart function, age, diabetes and other associated conditions.
Angioplasty or Bypass Surgery: Which Is Better?
There is no single answer for every patient.
Some coronary blockages are appropriately treated with medicines. Others may be suitable for angioplasty and stenting. Patients with certain patterns of extensive or complex coronary artery disease may benefit more from CABG.
The American Heart Association describes CABG as a treatment that creates a new pathway around blocked coronary arteries to restore blood flow. Treatment decisions depend on the number and location of blockages and the patient's overall medical condition.
A multidisciplinary discussion involving cardiology and cardiac surgery can be especially valuable in complex cases.
Why Patients Search for Dr. Kunal Sarkar in Kolkata
Patients looking for a top cardiac surgeon in Kolkata frequently focus on experience with complex procedures rather than routine consultations alone.
Dr. Sarkar's profile is notable for three particular aspects: more than three decades in cardiac surgery, a very large reported volume of CABG procedures, and significant work in off-pump and minimally invasive cardiac surgery.
At the same time, choosing a cardiac surgeon should never be based solely on online rankings, promotional descriptions or surgery numbers. Patients and families should understand the proposed procedure, alternative treatments, individual surgical risk, hospital facilities and expected recovery before making a decision.
Questions to Ask Before Heart Surgery
Before proceeding with major heart surgery, useful questions include: Why is surgery being recommended? Are there non-surgical alternatives? Is minimally invasive surgery possible in my case? What type of bypass graft or valve will be used? What are my individual risks? How long will recovery take? Will cardiac rehabilitation be recommended?
Taking previous angiography, echocardiography, CT scans, blood reports, hospital discharge summaries and a current medication list to the consultation can help the cardiac team evaluate the case more efficiently.
Frequently Asked Questions About Dr. Kunal Sarkar
Is Dr. Kunal Sarkar a cardiologist or cardiac surgeon?
Dr. Kunal Sarkar is a cardiovascular and thoracic surgeon, not simply a medical cardiologist. His work includes coronary bypass operations, valve surgery, aortic surgery and other complex heart procedures.
How much experience does Dr. Kunal Sarkar have?
Manipal Hospitals currently lists him with more than 30 years of surgical experience.
How many heart surgeries has Dr. Kunal Sarkar performed?
Manipal Hospitals reports that he has performed more than 40,000 heart surgeries, including over 32,000 CABG procedures.
Does Dr. Kunal Sarkar perform minimally invasive heart surgery?
Yes. Minimally invasive cardiac surgery is listed among his principal fields of expertise.
Does Dr. Kunal Sarkar perform beating-heart bypass surgery?
Yes. His current profiles highlight extensive experience in off-pump or beating-heart CABG, with his official website stating that more than 90% of his coronary operations are performed without a heart-lung machine.
Does he treat heart-valve disease?
Yes. His listed expertise includes valve repair, valve replacement and combined CABG-plus-valve surgery.
Where does Dr. Kunal Sarkar currently practice?
He is currently associated with Manipal Hospital, EM Bypass, Mukundapur, Kolkata, and his own website also lists consultations at Kolkata Heart Foundation in Bhowanipore.
Mediguide India – Heart Doctor & Hospital Information in Kolkata
Finding the right specialist can be difficult when a family is suddenly confronted with a recommendation for bypass surgery, valve surgery or another major heart procedure.
Mediguide India helps patients access information about doctors, hospitals and treatment options so that they can make better-informed healthcare decisions.
For information about cardiac surgeons, cardiologists, heart hospitals and heart-treatment options in Kolkata, contact:
Mediguide India
Phone: +91 8001700199
For Online Appointment: https://www.mediguides.in/doctors/dr.-kunal-sarkar
Final Takeaway
Dr. Kunal Sarkar is one of Kolkata's most experienced cardiovascular and thoracic surgeons, with more than three decades of surgical practice. Manipal Hospitals currently lists him as Director and Senior Consultant – Cardiovascular & Thoracic Surgery, reporting more than 40,000 heart surgeries and over 32,000 coronary bypass operations during his career.
His areas of expertise include off-pump CABG, complex coronary surgery, total arterial bypass grafting, minimally invasive cardiac surgery, valve surgery, aortic surgery, redo operations and advanced cardiac-support systems.
For patients searching for the “best cardiac surgeon in Kolkata” or “top heart surgeon in India,” the more useful approach is to consider documented experience, expertise in the particular operation required, hospital facilities and an individual assessment of risks and alternatives.
Medical Disclaimer: This article is intended for general information and doctor-discovery purposes. It does not constitute medical advice, a recommendation of surgery or an independent ranking or endorsement of any doctor. Treatment decisions should be made after consultation with appropriately qualified healthcare professionals. Doctor affiliations, consultation timings and institutional information can change and should be confirmed before booking.
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