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Long term follow up on minimally invasive cardiac surgery using an endo aortic occlusion system
Arndt H. Kiessling, Philipp Kisker, Mirko Doss, Aleksandra Miskovic, Anton Moritz.
Goethe University, Frankfurt am Main, Germany.
OBJECTIVE: We reviewed the initial patient series of our institution performing minimal invasive coronary artery bypass grafting, mitral valve surgery or atrial septal closure procedures using an endo aortic occlusion system. (Heartport, USA). By this technique relevant intraaortic pressures are exerted to the aortic wall over the clamp time. This might lead to late aortic degeneration and aneurysm formation
METHODS: 116 patients underwent a cardiac procedure by using the endo aortic clamp. The endoaortic balloon clamp catheter is used to occlude the ascending aorta at pressures of > 300 mmHg. Patients were re-scheduled for echocardiographic examination after a mean follow up period of 9.4 years.
RESULTS: The interim analysis (12/2011) performed in 79 patients (follow up rate 68%) showed no incidence of any structural damage of the ascending aorta at the intraoperative position of the endo aortic balloon
CONCLUSIONS: The endo aortic occlusion system is safe and did not trigger any damage to the aortic wall. The “Heartport technique” is an acceptable strategy for minimal invasive cardiac procedures.
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