Article: article from journal or magazin.
PulseCath iVAC 3LTM hemodynamic performance for simple assisted flow.
Interactive Cardiovascular and Thoracic Surgery
Publication types: Evaluation Studies ; Journal ArticlePublication Status: ppublish
The PulseCath iVAC 3L? left ventricular assist device is an option to treat transitory left heart failure or dysfunction post-cardiac surgery. Assisted blood flow should reach up to 3 l/min. In the present in vitro model exact pump flow, depending on various frequencies and afterload was examined. Optimal flow was achieved with inflation/deflation frequencies of about 70-80/min. The maximal flow rate was achieved at about 2.5 l/min with a minimal afterload of 22 mmHg. Handling of the device was easy due to the connection to a standard intra-aortic balloon pump console. With increasing afterload (up to a simulated mean systemic pressure of 66 mmHg) flow rate and cardiac support are in some extent limited.
Blood Flow Velocity, Blood Pressure, Catheters, Heart-Assist Devices, Hemorheology, Intra-Aortic Balloon Pumping/instrumentation, Prosthesis Design, Pulsatile Flow
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