Results 31 to 40 of about 77,665 (261)

Physiology of Atrioventricular Transmission [PDF]

Circulation, 1961
This paper describes records of the transmembrane action potential of fibers from different parts of the specialized conducting system and electrograms recorded directly from these fibers in situ. On the basis of these records it is possible to describe certain physiologic mechanisms for conduction delay, block, and supernormal conduction.
Chandler McC. Brooks, BRIAN F. HOFFMAN
openaire   +2 more sources

Phase II Study of Posttransplant Cyclophosphamide‐Based Graft‐Versus‐Host Disease Prophylaxis After HLA‐Mismatched Unrelated Donor Reduced Intensity Transplantation: Results From the ACCESS Trial Expansion Cohort

American Journal of Hematology, EarlyView.
ABSTRACT Posttransplant cyclophosphamide (PTCy) to prevent graft‐versus‐host disease (GVHD) improves outcomes in recipients of HLA mismatched unrelated donor (MMUD) allogeneic hematopoietic cell transplantation (allo HCT). Outcomes of MMUD HCT using PTCy in patients requiring reduced intensity or non‐myeloablative conditioning (RIC/NMA) are not well ...
Brian C. Shaffer, Monzr M. Al Malki, Antonio Martin Jimenez Jimenez, Joseph Stanek, Stephanie Bo‐Subait, Brent R. Logan, Jianqun Kou, Erin Leckrone, Heather E. Stefanski, Stephen R. Spellman, Craig Malmberg, Medhat Askar, Rachel Cusatis, Dipenkumar Modi, Farhad Khimani, Mehdi Hamadani, Martin Maiers, Rachel Cook, Karen Ballen, Javier Bolaños‐Meade, Uttam Rao, Jordan Milner, Ramzi Abboud, Katarzyna Jamieson, George Carrum, Bhagirathbhai Dholaria, William J. Hogan, Ran Reshef, Satyajit Kosuri, Alison Loren, Karilyn Larkin, Sally Arai, Muna Qayed, Sung Won Choi, Larisa Broglie, Jeffery J. Auletta, Bronwen E. Shaw, Steven M. Devine, Mahasweta Gooptu   +38 more
wiley   +1 more source

Worsening Heart Failure From Decreased Atrioventricular Synchronization Rate of a Leadless Pacemaker

JACC: Case Reports
Background: Atrioventricular synchronous pacing with a leadless pacemaker is a therapy used in patients with atrioventricular block. However, atrial oversensing may cause an increase in heart rate, with resulting atrioventricular dyssynchrony.
Kazuku Ishihara, MD, Takenori Ikoma, MD, Makoto Sano, MD, Terumori Satoh, MD, Keisuke Iguchi, MD, Atsushi Sakamoto, MD, Kenichiro Suwa, MD, Yoshihisa Naruse, MD, Hayato Ohtani, MD, Yuichiro Maekawa, MD   +9 more
doaj   +1 more source

Heterozygous Variants in LRP1 Cause a Neurodevelopmental Disorder With Congenital Heart Defects

American Journal of Medical Genetics Part A, EarlyView.
ABSTRACT LRP1 encodes the low‐density lipoprotein (LDL) receptor‐related protein 1 (LRP1), a transmembrane protein involved in endocytosis and activation of multiple signaling pathways. LRP1 variants have been implicated in the pathogenesis of congenital heart defects (CHD), Alzheimer's disease, and neurodevelopmental disorders (NDD).
Alyssa L. Rippert, Gudny Anna Arnadottir, Laura Bedinger, Nicola Brunetti‐Pierri, Jennifer Cech, Xin Chen, Yanmin Chen, Erika Chick, Sarah Dyack, Madeleine Franchi, Tanja Frey, David Genevieve, Ian Glass, Jorge Granadillo, Kelly A. Keener, Sara B. MacKay, Paige McDunnah, Vinod K. Misra, Kristin G. Monaghan, Sureni V. Mullegama, Cristina Peduto, Leia Peterman‐Prather, Anita Rauch, Cherith Somerville, Kari Stefansson, Katharina Steindl, Patrick Sulem, Telma Sulem, Pamela Trapane, Roberta Zeuli, Samuel Zinner, Kosuke Izumi   +31 more
wiley   +1 more source

Systematic Cardiac Phenotyping of Patients With Copy Number Variants in the 15q11.2 Breakpoint 1 to Breakpoint 2 Region: A Retrospective Cohort Study From Nine Pediatric Cardiac Centers

American Journal of Medical Genetics Part A, EarlyView.
ABSTRACT Microdeletions impacting 15q11.2 breakpoint (BP) 1 to BP2, adjacent to the Prader–Willi critical region, have previously described neuropsychiatric associations, with potential low penetrance presentations of congenital heart disease (CHD) also identified.
Morgan B. Wright, Maria B. Padua, Lindsey R. Helvaty, Kim L. McBride, Gabrielle Geddes, Vidu Garg, Seema R. Lalani, Stephanie Burns Wechsler, Jennelle C. Hodge, Benjamin J. Landis, Stephanie M. Ware   +10 more
wiley   +1 more source

Catheter ablation of common atrioventricular nodal reentry tachycardia using the conventional method

Zanco Journal of Medical Sciences, 2019
Background and objective: Atrioventricular nodal reentry tachycardia is the commonest type of supraventricular tachycardia referred to the electrophysiology laboratory.
Amar Alhamdi
doaj  

An Accessible Algorithm for the Quick and Precise Interpretation of Atrioventricular Blocks in Electrocardiograms

Annals of Noninvasive Electrocardiology
Background The study investigated an innovative algorithm to improve the diagnosis of different atrioventricular (AV) block types and to improve patient treatment by expanding knowledge in the field of accurate AV‐block identification.
Ali A. Ashkanani, Ali H. Ashkanani, Mohammad F. Alkandari, Malak A. Ashkanani, Maraheb M. Alkhalidi   +4 more
doaj   +1 more source

Cardiac morphological and morphometric analysis of Ardea alba

The Anatomical Record, EarlyView.
Abstract Ardea alba (Linnaeus, 1758) is a widely distributed heron species whose cardiovascular morphology remains poorly described. This study aimed to characterize the cardiac morphology and morphometry of adult A. alba. Ten specimens were analyzed using radiographic, morphometric, histological, scanning electron microscopy, and three‐dimensional ...
Julia Vaz Feio, Max Alex Santos Ferreira, Elane Guerreiro Giese, Érika Branco, Antônio Basílio Guerreiro Junior, Ana Rita de Lima   +5 more
wiley   +1 more source

SOX6 is expressed in various cell lineages in the developing mouse heart and contributes to proper valvuloseptal development

The Anatomical Record, EarlyView.
Abstract Cells derived from the endocardium, epicardium, cardiac neural crest, and second heart field play a critical role in the formation of the valvuloseptal structures of the heart. Previous studies have shown that the expression of the transcription factor SOX9 in these cell populations is essential in the regulation of this process.
Hannah G. Tarolli, Andrew B. Harvey, Inara Devji, Raymond N. Deepe, Jenna R. Drummond, Renélyn A. Wolters, Andy Wessels   +6 more
wiley   +1 more source

Epidemiology, Pathophysiology, and Management of Native Atrioventricular Valve Regurgitation in Heart Failure Patients

Frontiers in Cardiovascular Medicine, 2021
Atrioventricular regurgitation is frequent in the setting of heart failure. It is due to atrial and ventricular remodelling, as well as rhythmic disturbances and loss of synchrony.
Anne-Céline Martin, Anne-Céline Martin, Marie-Cécile Bories, Marie-Cécile Bories, Noemie Tence, Noemie Tence, Pierre Baudinaud, Pierre Baudinaud, Louis Pechmajou, Louis Pechmajou, Tania Puscas, Tania Puscas, Eloi Marijon, Eloi Marijon, Paul Achouh, Paul Achouh, Nicole Karam, Nicole Karam   +17 more
doaj   +1 more source