Commissurotomy Mitral Transatrial

Commissurotomy, or mitral commissurotomy (lat. commissurotome - incision of connective tissue) is a surgical operation consisting of dissecting or removing the interatrial septum in order to reduce the volume of the left atrium and improve the outflow of blood from it to the left ventricle.

In clinical practice, the commissurotomy technique is used for mitral stenosis and some other heart defects.

Mitral commissurotomy can be performed either open or closed.

Closed mitral commissurotomy

A closed mitral commissurotomy is performed through a small incision in the chest, which allows the surgeon to insert instruments and cut or remove part of the interatrial septum.

The procedure is usually performed under general anesthesia and takes about 1-2 hours. After surgery, the patient remains in the hospital for several days for observation and recovery.

1. Minimize chest trauma (compared to open surgery)
2. Faster recovery after surgery
3. Less risk of complications
4. Less invasive approach

Commissuratomy is a surgical operation to dissect the interventricular septum in a patient with severe stenosis of the left atrioventricular orifice as a result of mitral valve insufficiency with impaired diastolic function of the left ventricle or with the development of infective endocarditis.