Results 61 to 70 of about 42,309 (293)

A Unique Case of Mitral Valve Double Papillary Muscle Rupture

JACC: Case Reports, 2019
Papillary muscle rupture is a rare and life-threatening complication of acute myocardial infarction (AMI). We present a unique case of double papillary muscle rupture in a patient with three vessel disease and acute thrombotic occlusion of left ...
Luigi Pannone, MD, Giulio Falasconi, MD, Alberto Margonato, MD, Elisabetta Lapenna, MD, Roberto Spoladore, MD   +4 more
doaj   +1 more source

A Soft Robotic Model for Simulating Heart Valve Disease and Cardiac Interventions

Advanced Science, EarlyView.
This paper introduces a fully synthetic fabrication methodology for a soft robotic, in‐vitro model of the left‐heart, complete with a functioning mitral valve apparatus. With a view towards patient‐specific modeling, we demonstrate physiological flow and pressure waveforms, tunable mitral valve function with clinical imaging compatibility, and its use ...
James Davies, Emanuele Nicotra, Kefan Zhu, Chi Cong Nguyen, Bibhu Sharma, Adrienne Ji, Phuoc Thien Phan, Jingjing Wan, Patrick Pruscino, Hermione Truong, Jelena Rnjak‐Kovacina, Hoang‐Phuong Phan, Christopher Hayward, Nigel Hamilton Lovell, Thanh Nho Do   +14 more
wiley   +1 more source

Incidental Finding on Cardiac CT of Anomalous Anterior Papillary Muscle without Left Ventricular Outflow Obstruction: A Case Report

대한영상의학회지, 2016
Abnormal insertion of the papillary muscles is rare and has been described only in patients with hypertrophic cardiomyopathy based on findings of echocardiography or autopsy.
Eun-Ju Kang, Jongmin Lee, Ki-Nam Lee
doaj   +1 more source

Twin pseudo-aneurysms secondary to mid-ventricular disruption following mitral valve replacement

IHJ Cardiovascular Case Reports, 2017
Development of left ventricular pseudo-aneurysm following mitral valve replacement is rare. Subannular pseudoaneurysm due to separation of the mitral annulus from the free wall following excessive traction or debridement has been reported since long ...
Jagdish C. Mohan, Madhu Shukla, Vishwas Mohan, Arvind Sethi   +3 more
doaj   +1 more source

A coupled mitral valve -- left ventricle model with fluid-structure interaction

, 2017
Understanding the interaction between the valves and walls of the heart is important in assessing and subsequently treating heart dysfunction. With advancements in cardiac imaging, nonlinear mechanics and computational techniques, it is now possible to ...
Brown, André EX, Ch'ng, Quee-Lim, Currie, Michael, Grundy, Laura J, Hokanson, Jim, Javer, Avelino, Kerr, Rex, Lee, Chee Wai, Li, Chris, Li, Kezhi, Schafer, William R, Yemini, Eviatar   +11 more
core   +3 more sources

Influence of temperature on the calcium sensitivity of the myofilaments of skinned ventricular muscle from the rabbit. [PDF]

, 1989
The steady-state myofilament Ca sensitivity was determined in skinned cardiac trabeculae from the rabbit right ventricle (diameter, 0.13-0.34 mm) at 36, 29, 22, 15, 8, and 1 degree C.
Bers, DM, Harrison, SM
core   +3 more sources

An overview of the current genetic and phenotypical selection strategies to reduce the prevalence of feline hypertrophic cardiomyopathy = Een overzicht van de huidige genetische en fenotypische selectiestrategieën tegen hypertrofe cardiomyopathie bij de kat [PDF]

, 2020
Hypertrophic cardiomyopathy (HCM) is a common and potentially lethal heart disease in cats. To reduce its prevalence, breeding cats are frequently screened on the basis of their phenotype or genotype.
Broeckx, Bart, Peelman, Luc, Schipper, Tom, Smets, Pascale   +3 more
core   +1 more source

Chaperone‐Mediated Autophagic Degradation of USP9X in Macrophages Exacerbates Postmyocardial Infarction Inflammation and Cardiac Dysfunction

Advanced Science, EarlyView.
This study demonstrates that inflammatory stimuli induce the acetylation‐triggered, chaperone‐mediated autophagic degradation of ubiquitin‐specific peptidase 9 X‐linked (USP9X) in macrophages. USP9X acts as a macrophage “inflammation switch” after myocardial infarction (MI). USP9X loss destabilizes tumor necrosis factor receptor‐associated factor (TRAF)
Biqing Wang, Xiangheng Cai, Mengqi Li, Xue Liu, Junhui Xue, Ye Liu, Ding Ai, Xinyang Hu   +7 more
wiley   +1 more source

Decoding the Cardiac Immune Microenvironment and Fibroblast Crosstalk in Radiotherapy Combined with Immunotherapy‐Induced Cardiac Fibrosis Based on Single‐Cell Transcriptomic Analysis

Advanced Science, EarlyView.
This study highlights that radioimmunotherapy drives crosstalk between fibroblasts and immune cells (especially macrophages) in the cardiac microenvironment, with IL‐6 as the key mediator, and tocilizumab alleviates cardiac fibrosis by targeting this interplay.
Yuxi Luo, Ying Yu, Zhimin Zeng, Yanxin Chen, Yali Yi, Zhiqin Lu, Fujuan Zeng, Peng Xu, Daya Luo, Leifeng Chen, Anwen Liu   +10 more
wiley   +1 more source

Submillimeter diffusion tensor imaging and late gadolinium enhancement cardiovascular magnetic resonance of chronic myocardial infarction. [PDF]

, 2017
BackgroundKnowledge of the three-dimensional (3D) infarct structure and fiber orientation remodeling is essential for complete understanding of infarct pathophysiology and post-infarction electromechanical functioning of the heart.
Bluemke, David A, Gai, Neville, Halperin, Henry, Herzka, Daniel A, McVeigh, Elliot R, Mori, Susumu, Pashakhanloo, Farhad, Trayanova, Natalia A, Zviman, Muz   +8 more
core   +1 more source