The field of cardiac surgery is evolving with the adoption of new techniques that have improved outcomes and minimized risks. Robotic mitral valve replacement is among the most prominent of these developments, offering an advanced option in addition to laparoscopic and open surgery. With the increasing reliance on these methods globally, it is important to recognize the advantages and differences between them before making the most appropriate medical decision.
What is a mitral valve, and what does it do?
The mitral valve is one of the four heart valves, located between the left atrium and the left ventricle. Its function is to regulate the flow of oxygenated blood from the left atrium to the left ventricle, which acts as the main pump that circulates blood throughout the body to supply tissues with oxygen and nutrients. The mitral valve opens and closes repeatedly with each heartbeat to ensure that blood flows in the right direction and prevents backflow, and its importance lies in being the primary gateway for oxygenated blood to reach the left ventricle.
Structurally, the mitral valve consists of two cusps supported by delicate muscles and tendons similar to parachute strings, allowing it to function as a one-way valve. During diastole, the valve opens to allow blood to flow into the ventricle, and during systole, it closes to prevent retrograde flow into the left atrium.
What is robotic mitral valve replacement?
Robotic mitral valve replacement (RMVR) is among the most significant advances in modern cardiac surgery and is currently the most commonly performed robotic cardiac procedure. The technique relies on the use of precise robotic arms supported by 3D imaging, which gives the surgeon a high level of control and precision during the procedure, and is characterized as a minimally invasive procedure performed through small incisions, which reduces postoperative pain, speeds recovery, and allows the patient to return to normal activities in a shorter period of time compared to traditional surgeries.
Who is a suitable candidate for robotic mitral valve replacement?
Robotic mitral valve replacement is a suitable option for patients with mitral valve disease, whether due to age-related degenerative changes or other diseases such as rheumatic fever. This type of surgery is often recommended for people who have good heart function and do not have complex health issues that may hinder the success of the procedure.
However, this surgery may not be suitable for certain conditions, such as severe left ventricular dysfunction, advanced vascular disease, or other cardiac injuries that require surgical intervention at the same time. Additional issues, such as severe lung disease or obesity, can also affect the possibility of opting for this type of surgery.
Preparation before robotic mitral valve replacement
Before the procedure, the patient undergoes a thorough evaluation, including an ECG, blood tests, and a cardiac ultrasound. In some cases, a CT scan of the chest, abdomen, and pelvis may be ordered to evaluate the peripheral blood vessels and confirm their suitability for cannulation during surgery. Coronary catheterization (coronary arteriography) may also be performed if necessary. The patient’s medications are reviewed on a regular basis, and the presence of other chronic diseases is taken into account to ensure the patient’s readiness for surgery:
- Shower with antiseptic soap the night before to reduce the risk of infection
- Stopping certain medications (especially blood thinners) on a schedule determined by your doctor
- Abstain from eating and drinking from a certain time before the procedure (often from midnight)
- Follow any additional instructions at the pre-assessment appointment, which may include biometrics and tests such as an electrocardiogram (ECG), chest x-ray, and EKG
Robotic Mitral Valve Replacement Procedure Steps
Robotic mitral valve replacement is performed through small incisions in the chest wall, through which the surgeon inserts tiny robotic arms and a high-definition 3D camera. The surgeon sits at a special console to move these arms with great precision inside the heart. Before starting, the patient is connected to an artificial heart-lung machine, typically via peripheral venous access in the groin, to pump blood and oxygenate the body while the heart is temporarily stopped for the procedure. In some special cases, other vessels such as the axillary artery or ascending aorta may be used if the peripheral vessels are not suitable.
The left atrium is then opened to access the mitral valve, which is replaced with a new valve (mechanical or biological, depending on the patient’s condition). Upon completion of the procedure and confirmation that the heart is functioning efficiently, the patient is weaned off the heart-lung machine. The ventilator is often removed before the patient is transferred to the intensive care unit, where the stay is short, and the patient is discharged in two to three days and gradually recovers over the following weeks.
Types of valves used in robotic mitral valve replacement
When performing a mitral valve replacement, your doctor can choose two main types of valves:
- Mechanical valve: It has a very long lifespan that can span decades, but requires lifelong anticoagulation.
- A tissue (biological) valve: Made from animal or human tissue, it usually does not require permanent immunosuppressant medications, but has an average lifespan of only 10 to 15 years, which may require later replacement, especially in younger patients.
Choosing the most appropriate type is determined based on the patient’s age, health status, and lifestyle.
Advantages of robotic mitral valve replacement
Robotic mitral valve replacement offers many advantages over traditional surgical methods of mitral valve replacement, as the da Vinci Surgical System allows the surgeon high flexibility of movement thanks to its precision instruments that move in six directions, in addition to steady, jitter-free movements and a high-definition 3D image, making the view inside the heart, especially the mitral valve area, more accurate and clear.
For the patient, this technique offers smaller incisions, resulting in less postoperative pain, improved cosmetic appearance, and reduced surgical stress. It also reduces blood loss and the need for blood transfusions, lowers the risk of infection, shortens the hospital stay, and speeds up the return to daily activities. Studies show that robotic surgery has similar success and complication rates to traditional surgery, but offers patients a more comfortable experience and faster recovery.
Comparison of different methods of mitral valve replacement
There are several surgical methods available for mitral valve replacement, and choosing the most appropriate one is a decision based on the patient’s condition and the medical team’s recommendation. The most common methods are robotic surgery, laparoscopic surgery, and open-heart surgery. Here’s a simple comparison:
| Method | Incision size | Length of hospitalization | Recovery period | The main challenges |
|---|---|---|---|---|
| Robot | Small incisions (several centimeters) | Short (often 2-4 days) | Fast (a few weeks) | Requires advanced equipment and specialized expertise |
| More pain, higher risk of infection, and longer recovery time | Small incision (several centimeters) | Relatively short | Faster than open surgery | May not be suitable for all complex cases |
| Open heart | Large incision across the sternum | Longer (5-7 days or more) | Slower recovery (may take months) | More pain, higher risk of infection and longer recovery time |
Recovery after robotic mitral valve replacement
After robotic mitral valve replacement, the patient is usually transferred to the intensive care unit for a few hours to monitor vital signs and ensure hemodynamic stability, then moved to a regular hospital room, and the stay is relatively short, typically not exceeding 2-4 days. This type of surgery is characterized by a faster return to daily activities than open surgery: patients can gradually resume their usual activities within a few weeks, and full recovery typically takes 4-8 weeks, depending on age and general health status.
During this phase, the patient is advised to take care of the wound, walk gradually, and avoid heavy lifting or exertion until the doctor allows it. Enrolling in a cardiac rehabilitation program is an important step to help you safely regain fitness and relieve symptoms more quickly. Adherence to your doctor’s instructions and regular check-ups is essential to ensure the best results after the procedure.
Risks and potential complications of robotic mitral valve replacement
Despite the great advantages of robotic surgery, there are some limitations and risks to be aware of. The success of the operation depends primarily on the expertise of the medical team and on carefully selecting the appropriate patient, as certain health conditions may make this technique less safe and warrant consideration of traditional surgery. Challenges and potential complications include:
- Increased operation time in some inexperienced centers, although advanced centers were able to significantly reduce this difference
- There is no direct sensation of tissue texture, as the surgeon relies on 3D vision to estimate the force of pressure on the tissue during the operation
- Not suitable for some patients, such as those with extensive thoracic adhesions, severe pulmonary disease, advanced left ventricular dysfunction, or aortic valve insufficiency
- General risks of any cardiac surgery, such as bleeding, infection, arrhythmia, or the potential need to convert to open-heart surgery if difficulties arise during the procedure
Cost of robotic mitral valve replacement in Turkey
The estimated cost of robotic mitral valve replacement in Turkey ranges from 12,000 to 34,000 USD, depending on several factors, including the type of valve implanted (mechanical or tissue), the experience of the surgical team, the available technical equipment, and the accompanying tests and accommodation services.
In general, robotic surgery is more expensive than traditional methods such as laparoscopic or open-heart surgery, but provides the patient with a shorter recovery period and less hospitalization. In Western countries, the cost of the same procedure can reach $40,000- $ 60,000 USD or more, making Turkey a more cost-effective option while maintaining the quality of care.
In conclusion, robotic mitral valve replacement is one of the most remarkable achievements of modern cardiac surgery, combining precision, fast recovery, and low pain. Although other alternatives exist, such as laparoscopic or open-heart surgery, the most appropriate choice depends on the medical team’s assessment of the case. Adhering to the preparation and follow-up instructions after the procedure ensures the best results and the restoration of a healthy and active life.
Sources:
- Hamandi, M. (2021). A review of robotic mitral valve surgery.
- Bush, B., Nifong, L. W., Alwair, H., & Chitwood, W. R., Jr. (2013). Robotic mitral valve surgery – current status and future directions. Annals of Cardiothoracic Surgery, 2(6), 814-817.