Results 21 to 30 of about 19,247 (255)

Insulin signaling is critical for sinoatrial node maintenance and function

Experimental and Molecular Medicine, 2023
Insulin and insulin-like growth factor 1 (IGF-1) signaling regulate cellular growth and glucose metabolism in the myocardium. However, their physiological role in the cells of the cardiac conduction system has never been explored. Therefore, we sought to
Sangmi Ock, Seong Woo Choi, Seung Hee Choi, Hyun Kang, Sung Joon Kim, Wang-Soo Lee, Jaetaek Kim   +6 more
doaj   +1 more source

Sinus node dysfunction caused by a sinus node artery occlusion during catheter ablation and sinus rhythm restoration post-PCI [PDF]

HeartRhythm Case Reports
Kenji Yamaji, MD, PhD, Kouta Fujihara, MD, Yuto Fukawa, MD, Yohei Oishi, MD, Masahiro Yoshinaga, MD, Masahiro Karakawa, MD, PhD   +5 more
doaj   +2 more sources

Pacientes chagásicos crônicos portadores de disfunção do nódulo sinusal: a presença de anticorpos IgG com ação agonista muscarínica independe da disfunção ventricular esquerda? Chronic Chagas disease patients with sinus node dysfunction: is the presence of IgG antibodies with muscarinic agonist action independent of left ventricular dysfunction?

Revista da Sociedade Brasileira de Medicina Tropical, 2007
Estudos mostram que anticorpos IgG agonistas muscarínicos, de pacientes chagásicos, alteram a atividade elétrica de células cardíacas in vitro. Outros consideram sua presença, e a da síndrome do nódulo sinusal, conseqüências da lesão cardíaca progressiva.
Maria Beatriz Corrêa de Mello Altschüller, Roberto Coury Pedrosa, Basílio de Bragança Pereira, Wilson Braz Corrêa Filho, Aline Silva de Medeiros, Patrícia Cristina Santos Costa, Antonio Carlos Campos de Carvalho   +6 more
doaj   +1 more source

Remodelling and dysfunction of the sinus node in pulmonary arterial hypertension

, 2023
Patients with pulmonary arterial hypertension (PAH) have a high burden of arrhythmias, including arrhythmias arising from sinus node dysfunction, and the aim of this study was to investigate the effects of PAH on the sinus node.
Sunil Jit R. J. Logantha, Yamanushi, Tomoko T., Absi, Mais, Gillian Quigley, X. Zhang, Quigley, G, Dobrzynski, H, Yanni, J, Kabuto, Hideaki, Dobrzynski, Halina, Tomoko T. Yamanushi, Temple, Ian P., Mark R. Boyett, Absi, M, Hirakawa, E, Hart, G, Boyett, MR, Logantha, Sunil Jit R.J., Gurney, Alison M., Ian P. Temple, George Hart, Yamanushi, TT, Hideaki Kabuto, Temple, IP, Joseph Yanni, Zhang, X., Boyett, Mark R., Kabuto, H, Zhang, X, Mais Absi, Halina Dobrzynski, Logantha, SJRJ, Zhang, Henggui, Henggui Zhang, Gurney, AM, Yanni, Joseph, Hart, George, Quigley, Gillian, Alison M. Gurney, Zhang, H, Hirakawa, Eiichiro, Eiichiro Hirakawa   +41 more
core   +1 more source

Sinus node dysfunction after partial anomalous pulmonary venous connection repair

, 2014
ObjectiveRepair of partial anomalous pulmonary venous connection to superior vena cava using an internal patch has been described as a potential cause of obstruction at the systemic or pulmonary vein level and of sinus node dysfunction.
Pace Napoleone, Carlo, Oppido, Guido, Mariucci, Elisabetta, Angeli, Emanuela, Gargiulo, Gaetano D.   +4 more
core   +2 more sources

Double Trouble in a Patient with Coronary Ectasia, Bradycardia with Angina: Epiphenomenal or Mechanistic Association

Clinical Medicine Insights: Case Reports, 2016
Coronary artery ectasia is a rare angiographical finding, and it accounts for less than 5% of all coronary angiograms. We report a case of a 55-year-old male patient who presented with fatigue and exertional chest pain.
Vanessa Rameh, Antoine Kossaify
doaj   +1 more source

Sinus arrest in a p.Arg160X-DSP-positive patient without evidence of desmoplakin-mediated cardiomyopathy: a case report

Frontiers in Cardiovascular Medicine, 2023
BackgroundPathogenic/Likely pathogenic variants in DSP-encoded desmoplakin are strongly associated with arrhythmogenic cardiomyopathy (ACM). However, their contribution towards sinus node dysfunction has not been well-delineated.Case summaryA 74-year-old
Nicholas Y. Tan, John R. Giudicessi, Jason R. Harvey, Samuel J. Asirvatham, Konstantinos C. Siontis   +4 more
doaj   +1 more source

Sick Sinus Syndrome and Takotsubo Cardiomyopathy

Case Reports in Cardiology, 2018
Background. Takotsubo cardiomyopathy is associated with increased risk of ventricular arrhythmias, atrial fibrillation, and bradyarrhythmias. However, sinus node dysfunction is relatively infrequent in the setting of takotsubo cardiomyopathy. Case Report.
Ahmed S. Yassin, Ahmed Subahi, Hossam Abubakar, Ahmed Rashed, Mohamed Shokr   +4 more
doaj   +1 more source

Electrocution induced symptomatic bradycardia necessitating pacemaker implantation

Heart Views, 2014
Electrical or electrocution injury is a common accidental occurrence and mostly workplace related. Fatal arrhythmias, skin injury and sudden death may ensue.
Kuan Leong Yew
doaj   +1 more source

Concealed Sinus Node Dysfunction and Paradoxical Effect of Atropine during Arrhythmia Diagnostic Pharmacological Testing

, 2014
A 78-year-old male patient presented with repetitive fainting episodes. His electrocardiogram showed sinus rhythm with persistent ventricular bigeminy.
Antoine Kossaify, Myriam Karam
core   +1 more source