Results 71 to 80 of about 616,625 (408)

Biological niches within human calcified aortic valves. Towards understanding of the pathological biomineralization process [PDF]

, 2015
Despite recent advances, mineralization site, its microarchitecture, and composition in calcific heart valve remain poorly understood. A multiscale investigation, using scanning electron microscopy (SEM), transmission electron microscopy (TEM), and ...
Cavarretta, Elena, Cottignoli, Valentina, Familiari, Giuseppe, Giovanna, Agrosì, Loris, Salvador, Maras, Adriana, Relucenti, Michela   +6 more
core   +3 more sources

Noradrenergic and cholinergic innervation of the normal human heart and changes associated with cardiomyopathy

The Anatomical Record, EarlyView.
Abstract Autonomic nerves are crucial in cardiac function and pathology. However, data on the distribution of cholinergic and noradrenergic nerves in normal and pathologic human hearts is lacking. Nonfailing donor hearts were pressure‐perfusion fixed, imaged, and dissected. Left ventricular cardiomyopathy samples were also obtained.
Peter Hanna, Donald B. Hoover, Logan G. Kirkland, Elizabeth H. Smith, Megan D. Poston, Stanley G. Peirce, Chloe G. Garbe, Steven Cha, Shumpei Mori, Jaclyn A. Brennan, John Andrew Armour, Eric Rytkin, Igor R. Efimov, Olujimi A. Ajijola, Jeffrey L. Ardell, Kalyanam Shivkumar   +15 more
wiley   +1 more source

Uncertainties and challenges in surgical and transcatheter tricuspid valve therapy: a state-of-the-art expert review.

European Heart Journal, 2020
Tricuspid regurgitation (TR) is a frequent and complex problem, commonly combined with left-sided heart disease, such as mitral regurgitation. Significant TR is associated with increased mortality if left untreated or recurrent after therapy.
Chun-Chin Chang, K. Veen, R. Hahn, A. Bogers, A. Latib, F. Oei, M. Abdelghani, R. Modolo, S. Ho, M. Abdel-Wahab, K. Fattouch, J. Bosmans, K. Caliskan, M. Taramasso, P. Serruys, Jeroen J. Bax, N. Van Mieghem, J. Takkenberg, P. Lurz, T. Modine, O. Soliman   +20 more
semanticscholar   +1 more source

Long‐Term Durability of Transcatheter Aortic Valves in Patients With Bicuspid Aortic Stenosis

Catheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Background Data concerning the long‐term durability of transcatheter aortic valves (TAVs) in patients with bicuspid aortic stenosis (AS) are lacking. Aims The study aims to report data on long‐term valve durability following transcatheter aortic valve replacement (TAVR) in bicuspid AS.
Yuheng Jia, Annette Maznyczka, Mauro Boiago, Arif Khokhar, Daijiro Tomii, Antoinette Neylon, Pauline Danthine, Thomas Levesque, Paul Bamford, Stefan Toggweiler, Federico Moccetti, Jarkko Piuhola, Marianna Adamo, Mauro Massussi, Alfonso Ielasi, Matteo Montorfano, Giulia Costa, Martin Swaans, Daniël C. Overduin, Clément Servoz, Caterina Gandolfo, Ingibjörg Jóna Guðmundsdóttir, Stefano Salizzoni, Joanna J. Wykrzykowska, Kees H. van Bergeijk, Andrea Buono, Tau Hartikainen, Stephane Noble, Darren Mylotte, Stephen Brecker, Ahmed Thabit, Antonio Mangieri, Pierfrancesco Agostoni, Matjaž Bunc, Maarten Vanhaverbeke, Johan Bosmans, Hélène Eltchaninoff, Azeem Latib, Daniel Blackman, Nicolas M. Van Mieghem, Yuan Feng, Won‐Keun Kim, Thomas Pilgrim, Bernard Prendergast, Didier Tchétché, Mao Chen, Ole De Backer   +46 more
wiley   +1 more source

Understanding tricuspid valve remodelling in atrial fibrillation using three-dimensional echocardiography.

European Heart Journal-Cardiovascular Imaging, 2020
AIMS Atrial fibrillation (AF) has been associated with tricuspid annulus (TA) dilation in patients with severe functional tricuspid regurgitation (TR); however, the impact of AF is less clear in patients without severe TR.
X. Ortiz-León, E. L. Posada-Martínez, M. Trejo-Paredes, J. Ivey-Miranda, J. Pereira, Ian Crandall, Paul DaSilva, E. Bouman, Alyssa Brooks, C. Gerardi, Ifeoma Ugonabo, Wanwen Chen, H. Houle, J. Akar, Ben A. Lin, R. McNamara, Bernardo Lombo-Lievano, J. A. Arias-Godínez, L. Sugeng   +18 more
semanticscholar   +1 more source

Less Symptom Improvement in Patients Undergoing TAVI With Concomitant COPD, Atrial Fibrillation and Heart Failure

Catheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Background Comorbidities like a history of chronic obstructive pulmonary disease (COPD), atrial fibrillation (AF) and heart failure (HF) can cause similar symptoms as aortic stenosis (AS). However, how they influence symptom improvement and long‐term outcomes after transcatheter aortic valve implantation (TAVI) is unclear.
Kees H. van Bergeijk, Constantijn S. Venema, Bob Ophuis, Luca H. Plekkenpol, Mara Tomei, Hayman Al‐Barwary, Jasper Tromp, Yoran M. Hummel, Wouter Ouwerkerk, Ad F. M. van den Heuvel, Hindrik W. van der Werf, Yvonne L. Douglas, Jonas Lanz, Stefan Stortecky, Daijiro Tomii, Thomas Pilgrim, Stephan Windecker, Edoardo Pancaldi, Matteo Pagnesi, Marianna Adamo, Adriaan A. Voors, Joanna J. Wykrzykowska   +21 more
wiley   +1 more source

Quadrivalvular Involvement in Rheumatic Heart Disease: A Rare Case Report

Journal of the Indian Academy of Echocardiography & Cardiovascular Imaging, 2022
Four-valve involvement (mitral, aortic, tricuspid, and pulmonary) in rheumatic heart disease (RHD) is an exceedingly rare entity. We report the case of a 24-year-old male, a known case of RHD, who presented with dyspnea and presyncope for 2 months.
C M Satvic, Arnab Ghosh Chaudhury, Lachikarathman Devegowda, Prabhavathi Bhat, C N Manjunath   +4 more
doaj   +1 more source

Virtual reality 3D echocardiography in the assessment of tricuspid valve function after surgical closure of ventricular septal defect [PDF]

, 2007
Background. This study was done to investigate the potential additional role of virtual reality, using three-dimensional (3D) echocardiographic holograms, in the postoperative assessment of tricuspid valve function after surgical closure of ventricular ...
Bogers, A.J.J.C. (Ad), Bol-Raap, G. (Goris), Harkel, A.D.J. (Arend) ten, Kappetein, A.P. (Arie Pieter), Koning, A.H.J. (Anton), Meijboom, F.J. (Folkert), Scohy, T.V. (Thierry), Spek, P.J. (Peter) van der   +7 more
core   +3 more sources

Transcaval Transcatheter Aortic Valve Replacement: Clinical Outcomes From a TAVI Program Without Prior Transcaval Experience

Catheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Background Despite the emergence of the transcaval (TCv) access route for transcatheter aortic valve implantation (TAVI) in the treatment of patients with hostile iliofemoral anatomy, the number of patients reported in clinical series of TCv TAVI has been relatively small (< 500 published cases). We assessed procedural and clinical outcomes in
Conor J. Doyle, Brian McGrath, Ronan Margey, Andrew Sharp, Andrew J. Mitchell, Ellen Beirne, Ivan P. Casserly   +6 more
wiley   +1 more source

Edge‐to‐edge tricuspid valve repair for severe tricuspid regurgitation 20 years after cardiac transplantation

ESC Heart Failure, 2020
Tricuspid valve regurgitation in orthotopic heart transplant recipients is common. Surgical corrections have been the mainstay of the treatment for diuretic‐refractory heart failure due to severe tricuspid regurgitation. However, post‐transplant patients
Naoki Misumida, D. Eric Steidley, Mackram F. Eleid   +2 more
doaj   +1 more source