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Three-year experience of catheter-based micro-axial left ventricular assist device, Impella, in Japanese patients: the first interim analysis of Japan registry for percutaneous ventricular assist device (J-PVAD)
AbstractCatheter-based micro-axial ventricular assist device Impella ® (Abiomed, Danvers, MA) has been used in Japanese patients with drug-refractory acute heart failure (AHF) since 2017. This is the first interim analysis of the ongoing Japan Registry for Percutaneous Ventricular Assist Device (J-PVAD) to investigate the safety and efficacy of Impella support. Betw een October 2017 and January 2020, 823 Japanese patients, who were treated with the Impella 2.5, CP, or 5.0 pump, were enrolled. The primary endpoints were safety profiles and cumulative 30-day survival. Among them, 44.8% of patients were acute myocardial infa...
Source: Journal of Artificial Organs - March 1, 2023 Category: Transplant Surgery Source Type: research

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

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