Abstract

In vivo preclinical testing of mechanical circulatory devices requires large animal models that provide reliable physiological and hemodynamic conditions by which to test the device and investigate design and development strategies. Large bovine species are commonly used for mechanical circulatory support device research. The animals used for chronic in vivo support require high-quality care and excellent surgical techniques as well as advanced methods of postoperative care. These techniques are constantly being updated and new methods are emerging.We report results of our double steel-wire closure technique in large bovine models used for Cleveland Clinic's continuous-flow total artificial heart development program. This is the first report of double-wire sternal fixation used in large bovine models.

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