Results 81 to 90 of about 176,246 (351)

Right ventricular dysfunction in children supported with pulsatile ventricular assist devices [PDF]

, 2014
ObjectivesTo describe the incidence and severity of right ventricular dysfunction (RVD) in pediatric ventricular assist device (VAD) recipients and to identify the preoperative characteristics associated with RVD and their effect on outcomes ...
Buchholz, Holger, Dedieu, Nathalie, Dominguez, Troy E., Fenton, Mathew, Karimova, Ann, Lasuen, Nagore, Pockett, Charissa R., Rebeyka, Ivan M., Rutledge, Jennifer, VanderPluym, Christina   +9 more
core   +1 more source

Neural Plasticity and Hearing‐Speech Development in Children with Auditory Brainstem Implants for Congenital Hearing Loss Due to Severe Inner Ear Malformation

Advanced Science, EarlyView.
Data from a prospective cohort with 112 auditory brainstem implant users are analyzed. Younger age at implantation (<3 years), less severe inner‐ear malformation (common cavity, cochlear aplasia, and hypoplasia), and more intraoperative eABR evoked electrodes (≥60%) are associated with better hearing and speech outcomes.
Yu Zhang, Yongchuan Chai, Yiwen Zhang, Huan Jia, Zhaoyan Wang, Zhihua Zhang, Zhili Wang, Jie Chen, Xue Wang, Yun Li, Ying Chen, Hao Wu   +11 more
wiley   +1 more source

Implantation of ventricular assist devices in hypertrophic cardiomyopathy with left ventricular systolic dysfunction

ESC Heart Failure, 2021
Aims The outcomes of patients with hypertrophic cardiomyopathy with left ventricular systolic dysfunction (HCM‐LVSD) undergoing left ventricular assist device (LVAD) implantation remain unclear.
Nobuichiro Yagi, Osamu Seguchi, Hiroki Mochizuki, Kensuke Kuroda, Seiko Nakajima, Takuya Watanabe, Masanobu Yanase, Naoki Tadokoro, Satsuki Fukushima, Tomoyuki Fujita, Norihide Fukushima   +10 more
doaj   +1 more source

Hemodynamic effects of partial ventricular support in chronic heart failure: Results of simulation validated with in vivo data [PDF]

ObjectiveCurrent left ventricular assist devices are designed to provide full hemodynamic support for patients with end-stage failing hearts, but their use has been limited by operative risks, low reliability, and device-related morbidity.
Burkhoff, Daniel, Dowling, Robert, Ferber, Paul, Griffith, Bartley, Litwak, Kenneth, Meyns, Bart, Morley, Deborah, Spence, Paul   +7 more
core   +1 more source

Injectable pH Responsive Conductive Hydrogel for Intelligent Delivery of Metformin and Exosomes to Enhance Cardiac Repair after Myocardial Ischemia‐Reperfusion Injury

Advanced Science, EarlyView.
Injectable pH responsive conductive hydrogel for intelligent delivery of metformin and exosomes to alleviate myocardial ischemia‐reperfusion injury. The hydrogel responds to the weakly acidic microenvironment of ischemic injury and can significantly reduce the production of intracellular ROS and enhance cardiac conduction, thereby resisting apoptosis ...
Nianlan Cheng, Qiao Luo, Yongqing Yang, Ni Shao, Tianqi Nie, Xiujiao Deng, Jifeng Chen, Siqi Zhang, Yanyu Huang, Kuan Hu, Liangping Luo, Zeyu Xiao   +11 more
wiley   +1 more source

Right Ventricular Myocardial Infarction Complicated by Cardiac Arrest: Utilization of Extracorporeal Membrane Oxygenation

Case Reports in Cardiology, 2022
A 44-year-old male with an out-of-hospital cardiac arrest due to an acute left ventricular (LV) inferoposterior wall myocardial infarction (MI) involving the right ventricle (RV) is presented.
Alisha Alabre-Bonsu, Saurav Uppal, Ernest L. Mazzaferri, Konstantinos Dean Boudoulas   +3 more
doaj   +1 more source

Ventricular assist devices for all? [PDF]

European Journal of Cardio-Thoracic Surgery, 2012
In the past 5 years, the numbers of ventricular assist device (VAD) systems implanted worldwide have increased exponentially. Thus, since the introduction of the HeartMate II LVAD by Thoratec (Thoratec Inc., Pleasanton, CA, USA) over 10 000 of these pumps have been implanted.
Christoph Knosalla, Evgenij V. Potapov, Thomas Krabatsch, Roland Hetzer   +3 more
openaire   +3 more sources

A Physiological Control System for an Implantable Heart Pump that Accommodates for Interpatient and Intrapatient Variations [PDF]

http://dx.doi.org/10.1109/TBME.2019.2932233, 2019
Left ventricular assist devices (LVADs) can provide mechanical support for a failing heart as bridge to transplant and destination therapy. Physiological control systems for LVADs should be designed to respond to changes in hemodynamic across a variety of clinical scenarios and patients by automatically adjusting the heart pump speed.
arxiv   +1 more source

P21‐Activated Kinase 2 as a Novel Target for Ventricular Tachyarrhythmias Associated with Cardiac Adrenergic Stress and Hypertrophy

Advanced Science, EarlyView.
Ca2+/calmodulin‐dependent kinase II (CaMKII) activation is likely driven by oxidative stress, particularly excessive reactive oxygen species (ROS) production. This study identifies P21‐activated kinase 2 (Pak2) as a novel regulator of ROS‐induced CaMKII activation and abnormal Ca2⁺ dynamics in acute adrenergic and chronic pressure‐overload stressed ...
Tao Li, Ting Liu, Yan Wang, Yangpeng Li, Leiying Liu, James Bae, Yu He, Xian Luo, Zhu Liu, Tangting Chen, Xianhong Ou, Dan Zhang, Huan Lan, Juyi Wan, Yan Wei, Fang Zhao, Xin Wang, Tao Li, Christopher L.‐H. Huang, Chunxiang Zhang, Ming Lei, Xiaoqiu Tan   +21 more
wiley   +1 more source

Numerical Optimal Control of Turbo Dynamic Ventricular Assist Devices

Bioengineering, 2013
The current paper presents a methodology for the derivation of optimal operating strategies for turbo dynamic ventricular assist devices (tVADs). In current clinical practice, tVADs are typically operated at a constant rotational speed, resulting in a ...
Raffael Amacher, Jonas Asprion, Gregor Ochsner, Hendrik Tevaearai, Markus J. Wilhelm, André Plass, Alois Amstutz, Stijn Vandenberghe, Marianne Schmid Daners   +8 more
doaj   +1 more source