Two-step cardiomyoplasty with ventricular reduction

Details Two-step cardiomyoplasty with ventricular reduction Two-step cardiomyoplasty with ventricular reduction

1996-06-14

1998-04-14

Bahr, Jennifer

Surgery

Cardiac augmentation

128898, 600 37, 607119, 623 3, 601153, A61N 1362

Patent

active

057386269

ABSTRACT:
Cardiomyoplasty is a high mortality procedure (fifty percent two year mortality) with limited hemodynamic benefit. Excision of left ventricular myocardium in dilated congestive heart failure is also a high mortality procedure (forty percent one year mortality), but is one which may produce significant hemodynamic improvement in some patients although it can produce fatal hemodynamic deterioration in other patients. Use of cardiomyoplasty following the resection of ventricular myocardial tissue to reduce the diameter of the ventricular chamber provides replacement muscle mass and permits the cardiomyoplasty to function more effectively. The invention provides a new operation to achieve low mortality, which combines the previous two procedures described above in such a way that the strengths of each procedure overcomes the weaknesses of the other. The new operation is performed by surgically reducing the size of the dilated left ventricle via excision of myocardial tissue and then in the second step by placing a cardiomyoplasty muscle wrap. In one embodyment of the invention, left ventricular assist device support is temporarily utilized daring the of period of myoplasty muscle conditioning.

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patent: 5195518 (1993-03-01), Mannion et al.
patent: 5205810 (1993-04-01), Guiraudon et al.
patent: 5603337 (1997-02-01), Jarrik

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