Results 61 to 70 of about 101,589 (306)

Introduction [PDF]

, 1971
This issue of the Medical College of Virginia Quarterly is an edited form of the proceedings of the Cardiac Pacing symposium held in Williamsburg, Virginia on April 16 and 17, 1971.
Baird, Charles L., Jr.
core   +1 more source

Complex patterns of spontaneous initiations and terminations of reentrant circulation in a loop of cardiac tissue

, 2008
A two-component model is developed that consists of a discrete loop of cardiac cells that circulates action potentials together with a cardiac pacing mechanism.
Anastasiou-Nana, Banville, Bub, C.K. Cheng, C.M. Baumgarten, Cain, Cain, Cain, Cao, Chay, Chen, Cheng, Cherry, Chialvo, Chow, Courtemanche, Courtemanche, Courtemanche, Cytrynbaum, D.M. Chan, De Bakker, Derksen, Downar, Elaydi, Fox, Fox, Frame, Gilmour, Girouard, Glass, H. Sedaghat, Hall, Harris, Hwang, Ito, J.W. Cain, Jack, Jalife, Kalb, Keener, Kocic, Koller, Koller, Krebs, Kunysz, Lampert, Liebovitch, Lown, M.A. Wood, Manios, Mickens, Mines, Mitchell, Moe, Nagai, Nolasco, Otani, Plonsey, Qu, Quan, Sedaghat, Sedaghat, Stein, Stubna, Ten Tusscher, Vinet, Watanabe, Watanabe, Winkle, Wood, Wood, Wood   +71 more
core   +1 more source

The relation between cardiac 123I-mIBG scintigraphy and functional response 1 year after CRT implantation [PDF]

, 2020
Cardiac resynchronization therapy (CRT) is a disease-modifying therapy in patients with chronic heart failure (CHF). Current guidelines ascribe CRT eligibility on three parameters only: left ventricular ejection fraction (LVEF), QRS duration, and New ...
de Groot, J R, De Vincentis, G, Frantellizzi, V, Gheysens, O, Nakajima, K, Poel, E, Verberne, H J, Verschure, D O   +7 more
core   +1 more source

Endoplasmic Reticulum Geometry Dictates Neuronal Bursting via Calcium Store Refill Rates and Exposes Selective Neuronal Vulnerability

Advanced Science, EarlyView.
The ER's continuous tubular network is maintained by ER‐shaping proteins whose mutation or dysregulation contributes to neurodegenerative diseases. Here, we show that ER morphology sets the speed of Ca2+ store replenishment between firing events. Disrupting ER continuity slows intra‐ER Ca2+ redistribution from extracellular refill (SOCE) sites, driving
Valentina Davi, Pierre Parutto, Yuyi Zhang, Tasuku Konno, Cecile Crapart, Raquel Pereira, John P. Franklin, Mosab Ali Awadelkareem, Daniel C Maddison, Michael J. Devine, Edgar R. Gomes, Joseph Chambers, Elena Koslover, Edward Avezov   +13 more
wiley   +1 more source

Tratamiento de la insuficiencia cardíaca avanzada mediante estimulación biventricular. Experiencia inicial en una serie de 22 casos consecutivos [PDF]

, 2003
Recent data suggest that biventricular pacing may play an important role in treating advanced heart failure in the presence of a significant interventricular and/or intraventricular conduction disorder by correcting cardiac ...
Alegria, E. (Eduardo), Azcarate, P.M. (Pedro María), Barba, J. (Joaquín), Berenguel, A. (Alejandro), Garcia-Bolao, I. (Ignacio), Gavira, J.J. (Juan José), Macias, A. (Alfonso)   +6 more
core   +1 more source

Harnessing Phase Separation for the Development of High‐Performance Hydrogels

Advanced Science, EarlyView.
ABSTRACT Hydrogels are indispensable for the development of next‐generation bioelectronics, soft robotics, and biomedical devices, where their mechanical properties determine performance and reliability. Among strategies to enhance hydrogel mechanics, phase separation enables controlled heterogeneity resulting in gel networks that are reinforced by ...
Yue Shao, Yiming Ma, Baihao Shao, Molly M. Stevens   +3 more
wiley   +1 more source

Evidence that conflict regarding size of haemodynamic response to interventricular delay optimization of cardiac resynchronization therapy may arise from differences in how atrioventricular delay is kept constant. [PDF]

, 2014
Aims: Whether adjusting interventricular (VV) delay changes haemodynamic efficacy of cardiac resynchronization therapy (CRT) is controversial, with conflicting results.
Francis, DP, Hughes, AD, Jones, S, Kanagaratnam, P, Kyriacou, A, Manisty, CH, Mayet, J, Peters, NS, Sohaib, SM, Whinnett, ZI   +9 more
core   +2 more sources

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

Instability of spiral and scroll waves in the presence of a gradient in the fibroblast density: the effects of fibroblast-myocyte coupling

, 2016
Fibroblast-myocyte coupling can modulate electrical-wave dynamics in cardiac tissue. In diseased hearts, the distribution of fibroblasts is heterogeneous, so there can be gradients in the fibroblast density (henceforth we call this GFD) especially from ...
Pandit, Rahul, Zimik, Soling
core   +1 more source

Multidimensional and Multifunctional Laser‐Induced Graphene (LIG) for Point‐of‐Care and Wearable Biosensing, Theranostics, and Bioactive Interfaces Toward Personalized Healthcare and Regenerative Medicine

Advanced Science, EarlyView.
Multidimensional laser‐induced graphene (LIG) spanning from 0D to 3D architectures is comprehensively reviewed for multifunctional biomedical platforms, including biosensing, theranostics, and bioactive interface applications, which highlights its potentials for point‐of‐care diagnostics, wearable health monitoring, smart drug delivery, and tissue ...
Li Zhang, Yurou Yuan, Xiaohong Ding, Wing Cheung Mak   +3 more
wiley   +1 more source