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Can the intermittent low-speed function of left ventricular assist device prevent aortic insufficiency?
In this study, the Jarvik 2000 device, which is programmed to reduce the pump speed each minute for 8  s, was chosen to examine this potential effect. Prospectively collected data of 85 heart transplant-eligible Jarvik 2000 recipients who met the study criteria (no pre-existing AI and aortic valve surgery) were retrospectively analyzed for the incidence, correlating factors, and clinical outcomes o f de novo AI. All data were provided by the Japanese Registry for Mechanically Assisted Circulatory Support. De novo AI occurred in 58 patients, 23 of whom developed at least moderate AI during a median support duration of 23.5...
Source: Journal of Artificial Organs - January 9, 2021 Category: Transplant Surgery Source Type: research

Impact of bridge-to-bridge strategies from paracorporeal to implantable left ventricular assist devices on the pre-heart transplant outcome: A single-center analysis of 134 cases.
CONCLUSIONS: The BTB strategy is useful in providing long-term survival in patients with acute critical diseases. However, the early mortality rate after conversion is higher in patients who underwent the BTB strategy. PMID: 33243529 [PubMed - as supplied by publisher]
Source: Journal of Cardiology - November 23, 2020 Category: Cardiology Authors: Nakajima Doi S, Seguchi O, Yamamoto M, Fujita T, Fukushima S, Mochizuki H, Iwasaki K, Kimura Y, Toda K, Kumai Y, Kuroda K, Watanabe T, Yanase M, Kobayashi J, Kimura T, Fukushima N Tags: J Cardiol Source Type: research

1 Ventricular assist devices: developments in asia and global outlook for the next 10 years
The advent of left ventricular assist systems to support patients with advanced-stage heart failure has been a 50 year odyssey, now available broadly to such patients.1 Engineering advances have ushered in an era of small, durable devices that can be fully implanted within the chest. Yet, haemocompatibility related adverse events, which emanate from the interaction between the device and the patient they support are manifest principally in increased stroke rates, de novo device thrombosis requiring replacement and in gastrointestinal bleeding (a peculiar adverse event resulting from the unnatural physiology of continuous f...
Source: Heart Asia - April 24, 2019 Category: Cardiology Authors: Mehra, M. R. Tags: Keynote Lecture Source Type: research

Combining Human Umbilical Cord Blood Cells With Erythropoietin Enhances Angiogenesis/Neurogenesis and Behavioral Recovery After Stroke
In conclusion, our results suggest that hUCBC infusion in combination with EPO administration demonstrates therapeutic efficacy in the treatment of stroke-induced injury by promoting neurogenesis and angiogenesis. Further research that delineates the therapeutic mechanism of systemically administered hUCBC and EPO is required. Ethics Statement All experimental procedures involving animals were performed in accordance with the Guide for the Care and Use of Laboratory Animals as adopted and promulgated by the U. S. National Institutes of Health and were approved by CHA University Institutional Animal Care & Use Com...
Source: Frontiers in Neurology - April 9, 2019 Category: Neurology Source Type: research

Comorbidities and Biomarkers Vary between United States and Japanese LVAD Patients
Left ventricular assist device (LVAD) outcomes differ between Japan and US. While GI bleeding is common in US and rare in Japan, stroke and driveline infections are more common in Japan than US. The aim of this study was to explore whether inflammatory and angiogenesis biomarkers can explain these differences.
Source: The Journal of Heart and Lung Transplantation - March 16, 2019 Category: Transplant Surgery Authors: T. Imamura, A. Nguyen, D. Nitta, T. Fujino, L. Holzhauser, D. Rodgers, S. Kalantari, B. Smith, J. Raikhelkar, N. Narang, B. Chung, I. Ebong, C. Juricek, P. Combs, D. Onsager, T. Song, T. Ota, V. Jeevanandam, G. Kim, G. Sayer, M. Ono, N. Uriel Tags: 1065 Source Type: research