Optimal Design # 17 Report Development of a Pulsatile Left Heart Simulator
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منابع مشابه
Neurogenic hypertension: etiology and surgical treatment. II. Observations in an experimental nonhuman primate model.
In a companion paper (Ann Surg 1985; 201(3):391-398), clinical data which suggest that neurogenic hypertension may be caused by arterial compression of the left medulla oblongata was presented. A chronic pathophysiologic animal model of neurogenic hypertension using a substitute for arterial pulsation, the neurovascular compression simulator (NCS), was developed. This paper presents data that d...
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T he heart failure (HF) community has witnessed a rapid evolution in mechanical circulatory support over the past decade. Following publication of the pivotal HeartMate II trials, continuous-flow left ventricular assist devices (cfLVADs) with an axial rotor (e.g., HeartMate II) quickly replaced the first-generation, pulsatile devices as both a bridge to transplant and as destination therapy for...
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BACKGROUND Continuous-flow rotary pumps with axial design are increasingly used for left ventricular assist support. The efficacy of this design compared with pulsatile, volume displacement pumps, with respect to characteristics of left ventricular unloading, and exercise performance remains largely unstudied. METHODS AND RESULTS Thirty-four patients undergoing implantation with a pulsatile, ...
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BACKGROUND Left ventricular assist devices (LVADs) are now widely accepted as an option for patients with advanced heart failure. First-generation devices were pulsatile, but they had poor longevity and durability. Newer generation devices are nonpulsatile and more durable, but remain associated with an increased risk of stroke and hypertension. Moreover, little is understood about the physiolo...
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Cor triatriatum is an acyanotic congenital heart disease. We present a rare case of cor triatriatum sinistrum in a 6-month-old female infant who was presented with cyanosis and failure to thrive. The 2D transthoracic echocardiography and the Doppler color flow imaging showed a proximal venous chamber communicating to the distal left atrium through restrictive opening to the low-pressure, dis...
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تاریخ انتشار 2011