Results 31 to 40 of about 975,812 (179)

Sinus arrest in a patient with acute coronary syndrome due to a rare anatomical variation in the sinoatrial nodal artery [PDF]

open access: yesBMC Cardiovascular Disorders
Background Sinus node dysfunction can occur in patients with acute coronary syndrome (ACS), particularly in inferior myocardial infarction. Because the sinoatrial nodal artery (SANa) shows considerable anatomical variation, ischemia-related sinus arrest ...
Yoshiyasu Aizawa   +3 more
doaj   +2 more sources

D-galactose causes sinoatrial node dysfunction: from phenotype to mechanism. [PDF]

open access: yesAging (Albany NY), 2023
With the population aging, age-related sinoatrial node dysfunction (SND) has been on the rise. Sinoatrial node (SAN) degeneration is an important factor for the age-related SND development. However, there is no suitable animal modeling method in this field.
Zhang H   +13 more
europepmc   +3 more sources

Sympatho-vagal balance and intrinsic sinoatrial node activity in larval zebrafish quantified by heart rate variability [PDF]

open access: yesScientific Reports
The larval zebrafish is a powerful in vivo model for studying cardiac disease. Alterations in sympatho-vagal balance and intrinsic sinoatrial node activity, key contributors to cardiac dysfunction, can be assessed using heart rate variability (HRV ...
Layan Hamed   +4 more
doaj   +2 more sources

Sinoatrial node dysfunction after stereotactic ablative radiation therapy in the chest.

open access: yesJournal of Clinical Oncology, 2017
132 Background: Sinoatrial node (SAN) injury following stereotactic ablative radiation therapy (SABR) in the chest has not been reported in the literature. We report SAN dysfunction as a potential toxicity of SABR in the chest. Methods: We examined the clinical courses and SABR plans of 47 patients treated for T1 or T2 non-small cell lung cancer of ...
Yushen Qian   +14 more
openaire   +2 more sources

Junctional Pacemaker May Replace the Sinoatrial Node

open access: yesCardiovascular Innovations and Applications, 2021
Junctional rhythm is usually seen in the clinic with different causes. We report a case of bicuspid aortic valve accompanied by sinoatrial node dysfunction.
Min Lin   +4 more
doaj   +1 more source

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

open access: yesFrontiers 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   +10 more
doaj   +1 more source

Aging and Sinoatrial Node Dysfunction [PDF]

open access: yesCirculation, 2007
In the century since the discovery by Keith and Flack of the sinoatrial node in the mole heart, a detailed mosaic of its cellular, anatomic, and electrophysiological properties has emerged. The human sinus node has been found to be anatomically constant and well localized, occupying an approximately 10-mm subepicardial region on the sulcus terminalis ...
Haris M. Haqqani, Jonathan M. Kalman
openaire   +1 more source

A Case of Complete AV Blockade in Patient with Lyme Borreliosis

open access: yesАрхивъ внутренней медицины, 2022
Lyme disease (tick-borne borreliosis) is an infectious vector-borne natural focal disease that tends to a chronic and recurrent course with a predominant damage to the skin, nervous system, musculoskeletal system and heart. Cardiac features is manifested,
O. N. Denisov   +2 more
doaj   +1 more source

Metabolic syndrome remodels electrical activity of the sinoatrial node and produces arrhythmias in rats. [PDF]

open access: yesPLoS ONE, 2013
In the last ten years, the incidences of metabolic syndrome and supraventricular arrhythmias have greatly increased. The metabolic syndrome is a cluster of alterations, which include obesity, hypertension, hypertriglyceridemia, glucose intolerance and ...
Alondra Albarado-Ibañez   +4 more
doaj   +1 more source

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