Results 101 to 110 of about 173,470 (387)

Age-dependent dynamic electrophysiological field potential behavior of atrioventricular node during experimental AF in rabbit [PDF]

open access: yes, 2010
Introduction: Electrophysiological studies have demonstrated a relationship between aging and atrioventricular (AV) nodal conduction and refractoriness.
Alizadeh, A.-M.   +7 more
core  

Reliability of Early Fetal Echocardiography for Congenital Heart Disease Detection: A Preliminary Experience and Outcome Analysis of 102 Fetuses to Demonstrate the Value of a Clinical Flow-Chart Designed for At-Risk Pregnancy Management [PDF]

open access: yes, 2016
Early fetal echocardiography (EFEC) is a fetal cardiac ultrasound analysis performed between the 12th and 16th week of pregnancy (compared with the usual 18-22 weeks).
Abed, M.m.   +8 more
core   +1 more source

Yap1 Is Required for Endothelial to Mesenchymal Transition of the Atrioventricular Cushion*

open access: yesJournal of Biological Chemistry, 2014
Background: YAP1 regulates EMT and cell proliferation. Results: Deletion of YAP1 in endocardial cells reduces EMT of endocardial cells, and causes cardiac cushion defect. Conclusion: YAP1 is required for cardiac cushion development. Significance: This is
Hui Zhang   +12 more
semanticscholar   +1 more source

Transient 2:1 Atrioventricular Block with Peri-Conduction System Pacing After Leadless Pacemaker Implantation [PDF]

open access: yesTexas Heart Institute Journal
This report discusses a case of transient 2:1 atrioventricular block with conduction system pacing 4 hours after leadless right ventricular pacemaker implantation in a 19-year-old patient with a history of cardioinhibitory syncope and asystole cardiac ...
Salim N. Najjar, MD   +2 more
doaj   +1 more source

Automatic Mode Switching in Atrial Fibrillation [PDF]

open access: yes, 2005
Automatic mode switching (AMS) algorithms were designed to prevent tracking of atrial tachyarrhythmias (ATA) or other rapidly occurring signals sensed by atrial channels, thereby reducing the adverse hemodynamic and symptomatic consequences of a rapid ...
Antonio De, Simone   +2 more
core  

Left ventricular diastolic dysfunction worsens prognosis in patients with heart failure due to dilated cardiomyopathy

open access: yesESC Heart Failure, Volume 12, Issue 2, Page 1183-1193, April 2025.
Abstract Aims The prognostic significance of left ventricular (LV) diastolic dysfunction (LVDD) severity in patients with dilated cardiomyopathy (DCM) remains uncertain. This study aimed to evaluate the association of LVDD severity and elevated left atrial pressure (eLAP) with patient outcomes in stable, non‐acutely decompensated patients with DCM ...
Mateusz Winiarczyk   +12 more
wiley   +1 more source

Genetic testing for atrioventricular septal defect

open access: yesThe EuroBiotech Journal, 2018
Atrioventricular septal defect (AVSD) is a congenital heart defect characterized by a shared atrioventricular junction coexisting with deficient atrioventricular septation. The main morphological characteristic of AVSD is a common atrioventricular canal.
Rakhmanov Yeltay   +6 more
doaj   +1 more source

A phenomap of TTR amyloidosis to aid diagnostic screening

open access: yesESC Heart Failure, Volume 12, Issue 2, Page 1113-1118, April 2025.
Abstract Cardiac amyloidosis due to transthyretin (ATTR) remains an underdiagnosed cause of cardiomyopathy. As awareness of the disease grows and referrals for ATTR increase, clinicians are likely to encounter more atypical forms of the condition in clinical practice.
Alexios S. Antonopoulos   +4 more
wiley   +1 more source

Prolongation of AV nodal refractoriness by Ruta graveolens in isolated rat hearts [PDF]

open access: yes, 2008
Objectives: To evaluate concentration-dependent effects of total extract of Rusta graveolens and its purified alkaloid fraction on the nodal basic and functional properties.
Golalipour, M.J.   +4 more
core  

GATA-dependent regulatory switches establish atrioventricular canal specificity during heart development

open access: yesNature Communications, 2014
The embryonic vertebrate heart tube develops an atrioventricular canal that divides the atrial and ventricular chambers, forms atrioventricular conduction tissue and organizes valve development.
Sonia Stefanovic   +5 more
semanticscholar   +1 more source

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