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Trans-Axillary Minimally Invasive Heart Surgery

Trans-Axillary Minimally Invasive Cardiac Surgery is an advanced surgical technique in which an open-heart surgery is performed through a small cut near the armpit (axilla), without cutting the breastbone (sternum).

This procedure minimizes trauma, ensures faster recovery, and provides excellent cosmetic results — while maintaining the same safety and effectiveness as traditional open-heart surgery.

How Trans-Axillary Surgery is Different from Other Minimal Access Cardiac Surgery (MICS)

There are two major ways in which any Minimally Invasive Open-Heart Surgery (MICS) differs from a Conventional Open-Heart surgery. The first difference lies in how a cut is made on the body’s surface to reach the heart, and the second is how the patient’s blood circulation is connected to the heart-lung machine (see our section on MICS for details).

Trans-Axillary Open-Heart Surgery is slightly different from other types of minimally invasive cardiac surgeries. In most other MICS procedures, the heart is reached through small cuts made between the ribs on the front of the chest (right anterior thoracotomy) or just below the nipple (right anterolateral thoracotomy).

This approach can be a problem in young girls whose breast tissue is not yet fully developed. Since the cut lies in the area of breast tissue and passes through the undeveloped breast area, later, when the breast grows, it may become distorted or uneven.

In contrast, Trans-Axillary Surgery is performed through a small incision hidden in the armpit (axilla), leaving no visible scar on the chest and keeping the breastbone completely intact. A Unique advantage of this approach is that the cut lies away from the breast tissue. This makes it especially suitable for young girls and women, as it completely eliminates the risk of breast distortion or disfigurement that can sometimes occur with other minimally invasive approaches 

Another important advantage of Trans-Axillary Surgery over other MICS techniques is that it allows the patient’s blood circulation to be connected to the heart-lung machine by attaching the tubes directly to the large blood vessels near the heart inside the chest cavity, without using the smaller vessels in the groin or neck.

This feature is particularly helpful for small children with congenital heart disease and for some adults with very small blood vessels in the groin, where standard tubes cannot be used and smaller tubes may not provide adequate flow for effective cardiopulmonary bypass.
While other types of minimally invasive cardiac surgeries may not be possible in such patients, Trans-Axillary Surgery can be performed safely and effectively, as it uses the large blood vessels inside the chest cavity for connection.

This leads to less pain, faster recovery, smaller scars, and a reduced risk of infection.

What Procedures Can Be Performed Through the Trans-Axillary Approach?

  1. Atrial Septal Defect (ASD) closure

  2. Aortic Valve Replacement (AVR)

  3. Mitral Valve Repair or Replacement

  4. Tricuspid Valve Surgery (selected cases)

  5. Ventricular Septal (VSD) closure

  6. Intracardiac Correction of T0g

  7. Correction of Many other congenital heart defects

How the Surgery is Performed

  • The patient is placed under general anesthesia.

  • A small incision (5–7 cm) is made under the right armpit, and ribs are gently separated without cutting bones.

  • The heart-lung machine takes over blood circulation mostly via chest vessels. Rarely sometimes groin vessels are used.

  • Using long instruments and camera guidance, the surgeon replaces or repairs the valve or performs other open heart operations.

  • After completion, the heart is restarted and the incision closed with fine sutures, leaving a a very small hidden scar.

Benefits of Trans-Axillary Minimally Invasive Surgery

  • No breastbone cut (sternum remains intact):
    • The breastbone is not divided, which means less trauma and quicker healing.
  • Small incision with a hidden scar:
    • The incision is made in the armpit (axilla), leaving the scar almost invisible even when wearing light clothing.
  • Preservation of breast tissue:
    • Since the incision lies away from the breast area, it completely avoids the risk of breast distortion or disfigurement in young girls and women — a major cosmetic and psychological advantage.
  • Less pain and tissue trauma:
    • No bones or major muscles are cut, resulting in less postoperative pain and faster mobility.
  • Reduced risk of infection or bleeding:
    • Smaller incisions and minimal exposure lower the risk of wound infection and bleeding complications.
  • Shorter hospital stays:
    • Most patients are discharged within 3–5 days, much sooner than with traditional open-heart surgery.
  • Faster recovery and early return to routine life:
    • Patients can resume light activities within 2–3 weeks and normal life within 4–6 weeks.
  • Suitable for small children and select adults:
    • The heart-lung machine is connected directly to large chest vessels, making this technique safe even in small children or adults whose groin vessels are too small for standard tubes.
  • Superior cosmetic results:
    • With no visible chest scar and a hidden axillary incision, it provides outstanding aesthetic outcomes, especially for younger and female patients.

Possible Risks and Complications

Like any other open-heart operation trans axillary surgery also is a major operation and it may be associated with few complications. Risks vary from patient to patient. If you have been advised a trans-axillary heart surgery, please discuss the possible risks and complications with your surgeon in detail before consenting for the same. Possible complications are:

  • Bleeding requiring transfusion or, rarely, reoperation

  • Wound or lung infection

  • Irregular heartbeat (atrial fibrillation)

  • Temporary breathing issues or lung collapse

  • Stroke or kidney dysfunction (rare)

  • Conversion to full sternotomy for safety reasons

  • Groin bruising or bleeding due to cannulation

Who Are Ideal Candidates for Trans-Axillary Surgery?

  • Patients with isolated single-valve disease (aortic or mitral)

  • Individuals with good heart pumping function and overall health

  • Those with no prior chest surgery or radiation

  • Patients desiring faster recovery and minimal scars

  • Individuals with good lung function

Who May Not Be Suitable for This Approach?

  • Patients needing multiple valve or complex bypass surgeries

  • Those with severe lung disease or morbid obesity

  • Patients with chest wall deformities or prior right thoracic surgery

  • Severe aortic calcification or narrow groin vessels

  • Cases where full sternotomy ensures better safety and visualization

How Doctors Determine if You Are a Good Candidate

  • Detailed imaging such as echocardiography, CT scans, and coronary angiography

  • Multidisciplinary evaluation by the Heart Team (surgeon, cardiologist, anesthesiologist)

  • Assessment of overall health, comorbidities, and surgical risks

  • Discussion of patient expectations, cosmetic goals, and procedural alternatives

  • Final decision balancing safety and minimally invasive benefits

Recovery and Follow-Up After Surgery

  • Patients usually stay in ICU for 1–2 days and are discharged in 3–5 days.

  • Pain is generally mild and managed effectively.

  • Light physical activity begins within a week, and full recovery typically occurs in 4–6 weeks.

Postoperative care includes:

  • Regular follow-ups with the surgeon and cardiologist

  • Echocardiograms to monitor heart and valve function

  • Routine blood tests for organ function and anticoagulation monitoring

  • Participation in cardiac rehabilitation programs for endurance and confidence

  • Lifestyle modifications and adherence to prescribed medication

Life After Trans-Axillary Surgery

  • Most patients return to normal daily activities, travel, and work within weeks.

  • Maintaining a heart-healthy lifestyle — regular exercise, balanced diet, and no smoking — is crucial for long-term success.

  • Patients with mechanical valves will require lifelong blood-thinning medication.

Dr. Svati Bansal
Dr. Vikas Kumar Keshri

MBBS, MS, MCh, FRCS-CTh,
FRCS-CTh(Ed), MEBCTS, FEBCTS, FACS(USA), DNB, MNAMS, MBA

Associate Director
Cardio-thoracic and Vascular Surgery
Yashoda Medicity, Ghaziabad(UP)

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Frequently Asked Questions

What is Trans-Axillary Minimally Invasive Cardiac Surgery?

It is an advanced form of open-heart surgery performed through a small incision near the armpit, without cutting the breastbone. It provides the same surgical safety as conventional surgery with less trauma and faster recovery.

This technique is commonly used for:

  •  Aortic valve replacement

  • Mitral valve procedures (select cases)

  • ASD closure

  • Aortic root/ascending aorta procedures (selected patients)

  • No sternotomy (breastbone remains intact)

  • Small, hidden incision

  • Less pain

  • Lower infection risk

  • Faster discharge and recovery

  • Excellent cosmetic results

Yes. In expert centers, outcomes are equivalent to conventional surgery, with additional recovery advantages.

  • Surgery duration: 3–4 hours (varies by procedure)

  • Hospital stay: 4–6 days

  • Most patients return to routine activities in 3–4 weeks

No significant scar. The incision is placed in the natural crease of the armpit, making it barely visible.

Suitability depends on:
• Heart condition
• Aortic/root anatomy
• Body structure
• Previous surgeries
A CT scan is often required for planning.

Risks are similar to standard cardiac surgery:
• Bleeding
• Valve-related complications
• Temporary nerve pain/arm discomfort
• Rarely, conversion to full sternotomy
In experienced hands, complications are uncommon.

Yes. Hidden incision and preserved chest bone make it especially preferred for young patients and women.

Most people resume normal activities in 3–4 weeks and can travel as advised by the surgeon.

For any queries on this topic

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