Aortic Valve Leaflet Sizer: A New Device for Aortic Valve Sparing

Michel R. Labrosse, Carsten J. Beller1
University of Ottawa, Department of Mechanical Engineering, Ottawa, Ontario, Canada, 1Department of Cardiac Surgery, University of Heidelberg, Heidelberg, Germany

 

In aortic valve-sparing surgery, the native valve of the patient is left in place but may need correction of its dimensions in order to regain full competence. A sizer was designed that can simultaneously measure the leaflet height and free edge length. A prototype was built and successfully used in porcine hearts of various sizes.

The sizer is easy to use and provides dependable measurement of the aortic leaflet dimensions. Moreover, it represents a new resource on which surgeons may draw on to perform aortic valve-sparing surgery, with a better outcome for the patients.

The Journal of Heart Valve Disease 2007;16:145-147
 
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