High-speed visualization of disturbed pathlines in axial flow ventricular assist device under pulsatile conditions
نویسندگان
چکیده
منابع مشابه
Axial-Flow, Transvalvular Left Ventricular Assist Device
Background. It has been suggested that left ventricular unloading at the time of reperfusion provides superior infarct salvage over reperfusion alone. The purpose of this study was to show that the Hemopump transvalvular axial-flow left ventricular assist device provides superior left ventricular unloading, ischemic zone collateral blood flow, and infarct size reduction compared with intra-aort...
متن کاملLong-Term Management of Pulsatile Extracorporeal Left Ventricular Assist Device
Heart transplantation provides considerable survival benefits for patients with end-stage heart failure, but it is available for only a small fraction of such patients all over the world due to donor shortage. Therefore, many heart transplant candidates require long-term support by a left ventricular assist device (LVAD) while they await transplantation. However, the long-term LVAD support can ...
متن کاملDevelopment of a new pulsatile ventricular assist device.
We developed a small, lightweight, low-cost implantable ventricular assist device (VAD) for use in smaller Japanese subjects. The major advantage of this pump is the simplicity of its fabrication. Most parts of the pump were shaped from a transparent acrylic block by a turning process, and the diaphragm was made from a silicon sheet. Since this method of construction did not require any complex...
متن کاملAdaptations to pulsatile versus nonpulsatile ventricular assist device support.
The refinement of mechanical cardiac assist devices over the past 50 years largely has been driven by the clinical imperatives to provide reliable circulatory support to patients waiting for cardiac allografts (bridge to transplant) or longterm support for patients with very advanced heart failure (destination therapy). In the course of increasing success with these applications, investigators ...
متن کاملPulsatile flow in patients with a novel nonpulsatile implantable ventricular assist device.
BACKGROUND Ventricular assist devices (VADs) are an accepted therapy for patients with end-stage heart failure. The implantable devices that are available produce a pulsatile flow and are very large. In 6 patients, beginning in November 1998, we started to use the continuous-flow implantable DeBakey VAD device, which weighs 93 g. To detect the flow in peripheral vessels, we measured transcrania...
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ژورنال
عنوان ژورنال: The Journal of Thoracic and Cardiovascular Surgery
سال: 2015
ISSN: 0022-5223
DOI: 10.1016/j.jtcvs.2015.06.049