Results 71 to 80 of about 2,530,024 (241)

Analysis of the robustness of NMF algorithms [PDF]

arXiv, 2021
We examine three non-negative matrix factorization techniques; L2-norm, L1-norm, and L2,1-norm. Our aim is to establish the performance of these different approaches, and their robustness in real-world applications such as feature selection while managing computational complexity, sensitivity to noise and more.
arxiv  

Butorphanol or a Combination of Ketamine and Xylazine Do Not Interfere With Arrhythmogenic Parameters in Agoutis (Dasyprocta prymnolopha) Obtained Through High‐Resolution Electrocardiogram

Journal of Experimental Zoology Part A: Ecological and Integrative Physiology, EarlyView.
ABSTRACT Introduction/Objectives: Agoutis is a medium‐sized wild rodent with potential for use as an experimental model. This study aimed to evaluate physiological parameters of arrhythmogenesis in this species, by HR‐ECG and VCG techniques, under physical and pharmacological containment (ketamine‐xylazine and butorphanol). Materials and methods: Eight
Charlys Rhands Coelho de Moura, Hermínio José da Rocha Neto, Regina Lucia dos Santos Silva, Nayla Maria da Silva Rezende Amorim, José Lindenberg Rocha Sarmento, Miguel Ferreira Cavalcante Filho, Wanderson Gabriel Gomes de Melo, Dayseanny de Oliveira Bezerra, Maria Acelina Martins Carvalho, Napoleão Martins Argolo Neto   +9 more
wiley   +1 more source

Acute Coronary Syndrome Treated with Percutaneous Coronary Intervention in Hutchinson–Gilford Progeria

Children, 2023
Hutchinson–Gilford progeria syndrome is an extremely rare genetic disease caused by a de novo mutation in the LMNA gene, leading to an accumulation of a form of Lamin A, called Progerin, which results in a typical phenotype and a marked decrease in life ...
Luciano De Simone, Serena Chiellino, Gaia Spaziani, Giulio Porcedda, Giovan Battista Calabri, Sergio Berti, Silvia Favilli, Laura Stefani, Giuseppe Santoro   +8 more
doaj   +1 more source

Electrocardiographic manifestation of cardiac repolarization dispersion [PDF]

, 2019
Alterations of repolarization heterogeneity in the heart have been established as anAlterations of repolarization heterogeneity in the heart have been established as ...
Sedova Ksenia
core  

Treatment of focal junctional tachycardia using ivabradine in a dog

Veterinary Record Case Reports, EarlyView.
Abstract A 10‐year‐old labrador retriever was referred as an emergency due to ascites and lethargy. Physical examination revealed a regular tachycardia at 160 beats per minute with a Grade 3/6, left apical systolic heart murmur. The dog was diagnosed with severe myxomatous mitral valve disease with biventricular congestive heart failure (mild pulmonary
Joao Escalda, Catheryn Partington, Jose Novo Matos   +2 more
wiley   +1 more source

Mixoma gigante em átrio esquerdo: relato de caso Giant myxoma in the left atrium: case report

Brazilian Journal of Cardiovascular Surgery, 2008
Paciente de 63 anos, sexo feminino, com história de dispnéia, palpitação e precordialgia foi submetida a avaliação cardiológica. Ao exame físico mostrava-se sem anormalidades.
Marcos de Paula Vale, Adalberto Freire Sobrinho, Marcos Vinícius Sales, Marianna Meirelles Teixeira, Karine Chaves Cabral   +4 more
doaj   +1 more source

Postcardiac injury syndrome caused by radiofrequency catheter ablation of persistent atrial fibrillation: severe pulmonary arterial hypertension with severe tricuspid regurgitation: a rare case report and literature review

BMC Cardiovascular Disorders, 2023
Background Postcardiac injury syndrome (PCIS) is an easy-to-miss diagnosis, but it is not an uncommon complication. The phenomenon of echocardiography (ECHO) showing both severe pulmonary arterial hypertension (PAH) and severe tricuspid regurgitation (TR)
Jia Shi, Mengjiao Shao, Xianhui Zhou, Yanmei Lu, Baopeng Tang   +4 more
doaj   +1 more source

Case Report: Acute Heart Failure Induced by the Combination of Takayasu's, Takotsubo and Coronary Vasospasm in an Elementary School Teacher–A Reaction to Return-to-Work Stress After COVID-19?

Frontiers in Psychiatry, 2022
IntroductionTakayasu's arteritis (TA) is a systemic inflammatory disease that affects aorta and its major branches. There are several cardiac manifestations of TA and an association with Takotsubo syndrome (TTS) – but not coronary vasospasm - has been ...
Inês Pires, Massimo Mapelli, Massimo Mapelli, Nicola Amelotti, Elisabetta Salvioni, Cristina Ferrari, Andrea Baggiano, Andrea Baggiano, Edoardo Conte, Edoardo Conte, Irene Mattavelli, Piergiuseppe Agostoni, Piergiuseppe Agostoni   +12 more
doaj   +1 more source

Is arrhythmogenic right ventricular cardiomyopathy a paediatric problem too? [PDF]

, 2001
Arrhythmogenic right ventricular cardiomyopathy (ARVC) is a heart muscle disease that is often familial, characterized by arrhythmias of right ventricular origin, due to transmural fatty or fibrofatty replacement of atrophic myocardium. ARVC is usually
Basso, Cristina, Daliento, Luciano, Nava, Alessandra, Thiene, Gaetano, Turrini, P.   +4 more
core  

Acute Thrombotic Occlusion of proximal Left Anterior Descending Artery without ST-elevation (de Winter sign) in Electrocardiogram: A Case Report [PDF]

, 2019
Introduction: ST-elevation in precordial leads is diagnostic for acute transmural myocardial infarction (MI) related to acute occlusion of left anterior descending artery (LAD). Case presentation: In this case report, a 54-year-old man was admitted ...
Mehrpooya, Maryam, Salehi, Amir, Sherafati, Alborz   +2 more
core   +2 more sources