Results 31 to 40 of about 31,527 (236)

Three-dimensional computer model of the right atrium including the sinoatrial and atrioventricular nodes predicts classical nodal behaviours.

PLoS ONE, 2014
The aim of the study was to develop a three-dimensional (3D) anatomically-detailed model of the rabbit right atrium containing the sinoatrial and atrioventricular nodes to study the electrophysiology of the nodes. A model was generated based on 3D images
Jue Li, Shin Inada, Jurgen E Schneider, Henggui Zhang, Halina Dobrzynski, Mark R Boyett   +5 more
doaj   +1 more source

Late recovery of sinus rhythm following perioperative complete atrioventricular block in a child with congenitally corrected transposition

Annals of Pediatric Cardiology, 2018
We report a patient with l-transposition of the great arteries who developed perioperative complete atrioventricular block at 5 years of age in conjunction with a modified double-switch operation, but had unexpected late recovery of normal sinus rhythm ...
Eric Allen Pasman, Matthew Needleman, Joseph William May   +2 more
doaj   +1 more source

Ionic basis of a differential effect of adenosine on refractoriness in rabbit AV nodal and atrial isolated myocytes [PDF]

, 1999
Methods: The whole cell patch clamp technique was used to record action potentials and ion currents in AV nodal and left atrial myocytes isolated enzymatically from rabbit hearts.
Kane, K.A., Rankin, A.C., Workman, A.J.
core   +1 more source

A case of mesothelioma of the atrioventricular node [PDF]

Chinese Journal of Cancer Research, 1997
The case, a 8-year-old boy, who died from traffic accident. Grossly, the heart weights 115g and the inferior part of atrial septum is 3.6-4.0mm in thickness (1.8-2.0mm in thickness of this part in a normal heart). No other abnormalities were found in this heart.
Yi-xuan Song, Bin Luo, Qingsong Yao
openaire   +1 more source

Spread of Activity Through the Atrioventricular Node [PDF]

Circulation Research, 1960
Electrophysiologic mapping experiments on the excitation of the A-V node of isolated rabbit heart have been performed with intracellular microelectrodes. An area of tissue showing peculiar physiologic characteristics was shown to coincide, at least in part, with the histologic A-V node and His bundle.
Antonio Paes De Carvalho, Darcy F. De Almeida   +1 more
openaire   +3 more sources

Atrioventricular Node Slow‐Pathway Ablation Reduces Atrial Fibrillation Inducibility: A Neuronal Mechanism

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2016
BackgroundRadiofrequency ablation (RFA) for atrioventricular nodal reentrant tachycardia appears to reduce atrial tachycardia, which might relate to parasympathetic denervation at cardiac ganglionated plexuses.
Xiaomeng Yin, Yutao Xi, Shulong Zhang, Yunlong Xia, Lianjun Gao, Jinqiu Liu, Nancy Cheng, Qi Chen, Jie Cheng, Yanzong Yang   +9 more
doaj   +1 more source

Pathophysiology of Cav1.3 L-type calcium channels in the heart

Frontiers in Physiology, 2023
Ca2+ plays a crucial role in excitation-contraction coupling in cardiac myocytes. Dysfunctional Ca2+ regulation alters the force of contraction and causes cardiac arrhythmias. Ca2+ entry into cardiomyocytes is mediated mainly through L-type Ca2+ channels,
Sahil Zaveri, Sahil Zaveri, Ujala Srivastava, Yongxia Sarah Qu, Yongxia Sarah Qu, Yongxia Sarah Qu, Mohamed Chahine, Mohamed Chahine, Mohamed Boutjdir, Mohamed Boutjdir, Mohamed Boutjdir   +10 more
doaj   +1 more source

Protective role of cyclosporine on the model simulated the rotational nodal arrhythmia (AVNRT) by using extracellular field potential recordings of isolated atrioventricular-node of rabbit [PDF]

, 2011
Introduction: Recent studies have shown acute cardioprotective effects of cyclosporine. The aim of the present study was to determine the protective role of cyclosporine on the model simulated the rotational nodal arrhythmia (AVNRT) by using ...
Alizadeh, A.M., Badaghabadi, F., Changizi, S., Khori, V., Moheimani, H.R., Nayebpour, M., Nejad, S.S., Pourabouk, M., Rajaei, M., Yazdi, H.R.   +9 more
core  

Prolonged PR interval, first-degree heart block and adverse cardiovascular outcomes: a systematic review and meta-analysis [PDF]

, 2016
Objective: First-degree atrioventricular block is frequently encountered in clinical practice and is generally considered a benign process. However, there is emerging evidence that prolonged PR interval may be associated with adverse outcomes. This study
Barker, Diane, Beynon, Rhys, Buchan, Iain, Kwok, Chun Shing, Loke, Yoon K, Mamas, Mamas A, Morley-Davies, Adrian, Myint, Phyo K, Nolan, James, Patwala, Ashish, Rashid, Muhammad, Satchithananda, Duwarakan   +11 more
core   +1 more source

A case of typical atrioventricular nodal (AVN) reentrant tachycardia confined to the compact AV node, showing a variety of rare electrophysiological findings, including eccentric AVN echoes

Journal of Arrhythmia, 2014
Herein, we report the case of a 49-year-old woman with typical atrioventricular nodal (AVN) reentrant tachycardia, confined to the compact atrioventricular node, showing numerous rare electrophysiological findings such as unique AVN reentrant echoes ...
Kazushi Tanaka, M.D., Ph.D., Shinji Shiotani, M.D., Keisuke Fukuda, M.D., Masahiko Fujihara, M.D., Akihiro Higashimori, M.D., Nobuyuki Morioka, M.D., Yoshiaki Yokoi, M.D., Ph.D., F.A.C.C., F.S.C.A.I., Osamu Fujimura, M.D., F.A.C.C.   +7 more
doaj   +1 more source