Trans Aortic Valve Implantation (TAVI) is a minimally invasive procedure for the treatment of symptomatic aortic stenosis. This method of aortic valve repair is generally performed in patients who cannot undergo an open heart surgery.
Trans Aortic Valve Implantation (TAVI) or Trans Catheter Aortic Valve Replacement (TAVR) is a minimally invasive procedure for the treatment of symptomatic aortic stenosis. Symptomatic aortic stenosis may be described as the obstructive blood flow in the aortic valve.
This method of aortic valve repair is generally performed in patients who cannot undergo an open heart surgery.Some of these candidates include elderly patients with health conditions like nephropathy, lung diseases or people who are either living with other Coronary Artery Diseases or have already undergone CABG. People who have suffered a stroke are also recommended this procedure.
TAVI can be performed in following ways:
Transfemoral Approach - Through this approach the aortic valve is replaced with a catheter, via the femoral artery (Large artery located in the thigh).
Transapical Approach - Through this approach the aortic valve is replaced with a catheter, via the tip of the heart.
Transaortic Approach - Through this approach the aortic valve is replaced with a catheter, via the ascending aorta (aortic valve beginning).
TAVI is generally recommended to patients with following symptoms
Angina Pectoris (pain in the chest area)
Shortness of breath, a feeling of over exertion may be signs of an impending heart failure
Syncope (loss of consciousness and low blood pressure)
Pulsus Alternans (characterized by alternating strong and weak heart beat)
Systolic murmur (murmur which occurs with the contraction of heart muscles)
Ejection Click (sounds with a high pitch that occur when the aortic valve opens)
Patients who suffer from mild aortic stenosis may not require a TAVI and can continue to lead a normal life.
A thorough physical examination and review of tests are done pre surgery to determine the access route for TAVI.
Patients are generally admitted to the hospital a day before the surgery.
Trans Aortic Valve Implantation is done by administering local anesthesia by an experienced cardiac surgeon and typically takes between 45 to 60 minutes.
TAVI is a minimally invasive procedure to repair the aortic valve functioning without removing the old, damaged valve. Instead, bioprosthetic valve is implanted as a replacement valve.
TAVI involves the insertion of the catheter via either of the three approaches (Transfemora, Transapical and Transaortic) to access the heart. A hollow tube, called catheter, is inserted through the incision and guided to the heart. Ultrasound (high frequency sound wave imaging) and X-ray imaging is used by the doctor to guide the catheter during the procedure.
After carefully positioning the catheter, the replacement valve is passed through it. This valve pushes away the damaged vessel and uses it as an anchor to sit in its place. Once the doctor is sure the valve is securely in place, the catheter is withdrawn.
One of the advantages of this technique is that the patient’s heart does not need to be stopped (as in open heart valve replacement surgery), thus there is less strain on the body.
After the surgery the patient is transferred to the surgical Intensive Care Unit (ICU) and closely monitored for about 24 hours. Once stable, the patient is then transferred to a regular ward where he is further monitored for complications.
Most patients are discharged after 5 to 7 days of the procedure.
Risk and Complications
Known risks of TAVI include
Conduction defects - Faulty electrical impulses of the heart, which can cause irregular heartbeats
Unexpected cardiac death (sudden malfunctioning of the heart)
If you have any additional questions, talk to our in-house doctors. Call 1800-1022-733 (toll free).
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