Method and device for percutaneous left ventricular reconstruction
View Patent ↗A method for reducing left ventricular volume, which comprises identifying infarcted tissue during open chest surgery; reducing left ventricle volume while preserving the ventricular apex; and realigning the ventricular apex, such that the realigning step comprises closing the lower or apical portion of said ventricle to achieve appropriate functional contractile geometry of said ventricle in a dyskinetic ventricle of a heart.
1. A method for reducing left ventricular volume in a congestive heart failure heart, the method comprising the steps of:
applying suction to an epicardium of said ventricle;
bringing opposing walls of said ventricle together via suction so as to reduce the size of the left ventricle, said opposing walls including a first wall and a second wall; and
penetrating a needle across said first and second walls of said ventricle while said first wall contacts said second wall;
wherein said suction is applied by engaging the epicardium with a suction device so that the epicardium is drawn into the suction device and inner surfaces of said first and second walls are brought together.
2. The method of claim 1 , further comprising:
identifying infarcted tissue during open chest surgery;
reducing a volume of said ventricle while preserving the ventricular apex; and
realigning the ventricular apex; wherein said realigning step comprises closing of a lower or apical portion of said ventricle to achieve appropriate functional contractile geometry of said ventricle.
3. The method of claim 2 , further comprising the step of sensing the infarcted tissue.
4. The method of claim 3 , wherein the infarcted tissue is the myocardium.
5. The method of claim 2 , wherein the step of realigning the ventricular apex further comprises the steps of altering the geometry of the ventricle and decreasing wall tension.
6. The method of claim 1 , wherein the epicardium is engaged with the suction device under thoracoscopic guidance.
7. The method of claim 1 , further comprising applying stitching to said first and second walls of said ventricle to affix said first and second walls together.
8. The method of claim 1 , wherein said method is a minimally invasive surgery.
9. The method of claim 3 , wherein the step of sensing the infarcted tissue may be performed by a procedure selected from the group consisting of: pacing, angiography, echocardiography, and tissue Doppler.
10. The method of claim 1 , further comprising the use of a thoracoscope or camera into an incision to facilitate visualization of the method.
11. The method of claim 1 , wherein the method further comprises:
securing the first and second walls together via a closure device.
12. The method of claim 11 , further comprising the step of applying a patch over said first and second walls.