Results 81 to 90 of about 4,419,243 (284)

Synchronization‐Dissipation in the Cardiorespiratory System

Advanced Science, EarlyView.
By modeling central nervous coupling and viscoelastic interactions in the cardiorespiratory system we show that synchronization produces a 10% gain in cardiac efficiency in humans. It is surmised that respiratory sinus arrhythmia improves cardiac pumping efficiency by reducing dynamic stress and power dissipation in the pulmonary vasculature.
Joshua R. Border, Alain Nogaret, Andrew Lefevre, Vishal Jain   +3 more
wiley   +1 more source

Minimally invasive approach for percutaneous CentriMag right ventricular assist device support using a single PROTEKDuo Cannula [PDF]

, 2016
Background: Right ventricular failure is a serious complication after left ventricular assist device placement. Case Presentation: A 70-year-old male in decompensated heart failure with right ventricular failure after the placement of a left ventricular ...
Kazui, Toshinobu, Jerman, Catherine F., Toshinobu Kazui, Echeverria, Angela, Jessika Iwanski, Kim, Samuel S., Iwanski, Jessika, Smith, Richard G., Angela Echeverria, Catherine F. Jerman, Samuel S. Kim, Tran, Phat L., Zain I. Khalpey, Khalpey, Zain I., Richard G. Smith, Phat L. Tran   +15 more
core   +1 more source

A Dual‐Modal Wearable PPG Smartwatch with AI‐Enhanced Correction for High‐Accuracy and Continuous AF Burden Assessment

Advanced Science, EarlyView.
ABSTRACT Atrial fibrillation (AF) increases the risk of stroke and heart failure, yet accurate quantification of AF burden in daily life remains difficult. Although smartwatch photoplethysmography (PPG) supports continuous monitoring, complex rhythms and signal noise can impair burden estimation.
Song Zuo, Jinglei Wang, Xin Wang, Han Feng, Yize Zhao, Fadong Li, Shaobin Wei, Le Zhou, Zixu Zhao, Songjie Chen, Xiangyi Kong, Jue Wang, Liu He, Shijun Xia, Xin Li, Junmeng Zhang, Xiaoxia Liu, Xueyuan Guo, Ning Zhou, Songnan Li, Chenxi Jiang, Ribo Tang, Caihua Sang, Deyong Long, Xin Du, Jianzeng Dong, Wenwu Zhu, Changsheng Ma   +27 more
wiley   +1 more source

Programmable Paracrine‐Mimetic Microneedle System for Temporal Regulation of Cardiac Repair

Advanced Science, EarlyView.
Temporal signaling is encoded into a programmable paracrine‐mimetic microneedle patch via tris(2,2'‐bipyridyl)dichlororuthenium(II) hexahydrate/sodium persulfate‐tuned hydrogel microparticles that deliver TGF‐β, IGF‐1, and VEGF over phase‐matched 7‐, 14‐, and 28‐day windows.
Yichen Dai, Pengchong Du, Zhaoyang Wang, Surilige, Rangga Fokta, Renjian Tan, Xiqing Zhao, Shuoyi Zhang, Yuecheng Wang, Yixin Zhang, Ziliang Fu, Rui Gong, Cheng Jiang, Yisheng He, Qiguang Wang, Renke Li, Khoon Lim, Junnan Tang, Xiaolin Cui   +18 more
wiley   +1 more source

Molecular genetics of arrhythmogenic right ventricular cardiomyopathy in South Africa [PDF]

, 2011
Arrhythmogenic right ventricular cardiomyopathy (ARVC) is a heritable disorder characterised by progressive degeneration of the right ventricular myocardium, arrhythmias and an increased risk of sudden death at a young age. Fourteen chromosomal loci have
Blanckenberg, Janine
core   +1 more source

Right Ventricular Lead Dysfunction Post LVAD Implantation

Graduate Medical Education Research Journal, 2020
Mentor: Faris Khan Program: Internal Medicine, Division of Cardiovascular Disease Type: Original Research Background: The use of left ventricular assist devices (LVAD), both as bridge to cardiac transplantation as well as destination therapy, has ...
Ahmed Mohamed Abdelhalim-Selim, Rahul Dhawan, Katheine Germann, Scott Lundgren, Ronald Zolty, Faris Khan   +5 more
doaj   +1 more source

Nucleoside‐Modified mRNA Encoding Alpha‐Galactosidase A Ameliorates Fabry Disease Phenotypes in Human IPSC‐Derived Cardiomyocytes

Advanced Science, EarlyView.
Human iPSC‐derived Fabry cardiomyocytes exhibited broad transcriptional dysregulation, apoptosis, mitochondrial dysfunction, impaired reactive oxygen species handling, altered contractility, and abnormal calcium transient decay, potentially mediated by phospholamban hyperphosphorylation.
Malte Juchem, Lea Oehlsen, Sedef Ersoy, Jia Li Ye, Natalie Weber, Elisa Mohr, Wilson Agyapong, Junqing Liu, Maximilian Fuchs, Ke Xiao, Christopher Jahn, Reto Eggenschwiler, Tobias Cantz, Julia Beimdiek, Falk F. R. Buettner, Theresia Kraft, Jan Hegermann, Ivonne J. Knorr, Lisa Ernst, Linda Feldbrügge, Resa Puffert, Kevin Schmidt, Christian Bär, Jeannine Hoepfner, Thomas Thum   +24 more
wiley   +1 more source

Damage‐Free Passivation of Ambipolar OECTs with Fluoropolymer Film for Enhanced Performance and Stability Toward Reliable Biosignal Processing

Advanced Science, EarlyView.
A damage‐free iCVD fluoropolymer passivation strategy is introduced for ambipolar vertical OECTs. Vapor‐phase infiltration and thermal annealing induce nanoscale phase separation in the OMIEC channel, enhancing overall device performance. A single‐channel bipolar event‐driven spiking encoder is also demonstrated for electrocardiogram signal encoding ...
Junyeong Yang, Bohyun Lee, Hanna Lee, Mingyu Kim, Changsoon Choi, Jung Ah Lim, Youson Kim, Sung Gap Im   +7 more
wiley   +1 more source

An unknown complication of peripherally inserted central venous catheter in a patient with ventricular assist device

Annals of Cardiac Anaesthesia, 2011
We report an unknown complication of peripherally inserted central venous catheter in a patient with Ventricular Assist Device. This rare complication led to the failure of the right ventricular assist device, which could be detrimental in patients with ...
Parikh M, Wong M, Farrimond J
doaj  

Percutaneous versus open cannulation for mechanical support in patients with right ventricular failure after left ventricular assist device placement [PDF]

Exploration of Cardiology
Aim: Temporary right ventricular assist device (t-RVAD) is an option for those patients in right ventricular failure (RVF) after left ventricular assist device (LVAD) resistant to ionotropic therapy.
Amit Prasad, Anthony Kronfli, Nadia Assiaoui, Christoph Brehm, Behzad Soleimani   +4 more
doaj   +1 more source