Results 41 to 50 of about 6,886 (213)

Cardiovascular complications related to cocaine use: case report [PDF]

open access: yes, 2006
BACKGROUND AND OBJECTIVES: Cocaine is the most commonly used illicit drug and its acute and chronic effects are related to a variety of physiological changes, mainly in the cardiovascular system.
Gazoni, Fernanda Martins   +6 more
core   +2 more sources

Functional behavior of patients with conventional pacemakers undergoing cardiac resynchronization [PDF]

open access: yes, 2008
FUNDAMENTO: A terapia de ressincronização cardíaca (TRC) é eficiente no tratamento de pacientes com insuficiência cardíaca (IC), disfunção ventricular grave e bloqueio intraventricular.
COSTA, Roberto   +9 more
core   +2 more sources

Patent ductus arteriosus: endovascular treatment in adult patient [PDF]

open access: yes, 2008
The patent ductus arteriosus (PDA) is a common type of congenital heart defect and its correction is simple when performed early in life. Surgery is performed using stitches or clips.
Alves, Claudia Maria Rodrigues   +5 more
core   +4 more sources

Pseudoinfarto agudo do miocárdio devido à síndrome da disfunção ventricular apical transitória (síndrome de Takotsubo)

open access: yesRevista Brasileira de Terapia Intensiva, 2013
A síndrome de Takotsubo caracteriza-se por disfunção ventricular esquerda transitória, predominantemente medioapical, desencadeada caracteristicamente por estresse físico ou emocional.
Bruno Araújo Maciel   +4 more
doaj   +1 more source

Machine Learning-based Efficient Ventricular Tachycardia Detection Model of ECG Signal [PDF]

open access: yesarXiv, 2021
In primary diagnosis and analysis of heart defects, an ECG signal plays a significant role. This paper presents a model for the prediction of ventricular tachycardia arrhythmia using noise filtering, a unique set of ECG features, and a machine learning-based classifier model.
arxiv  

Semantic-aware Temporal Channel-wise Attention for Cardiac Function Assessment [PDF]

open access: yesarXiv, 2023
Cardiac function assessment aims at predicting left ventricular ejection fraction (LVEF) given an echocardiogram video, which requests models to focus on the changes in the left ventricle during the cardiac cycle. How to assess cardiac function accurately and automatically from an echocardiogram video is a valuable topic in intelligent assisted ...
arxiv  

Cardiopatia chagásica crônica na Amazônia: uma etiologia a ser lembrada Cardiopatía chagásica crónica en la Amazonía: una etiología que recordar Chronic chagasic cardiopathy in Amazon region: an etiology to remember

open access: yesArquivos Brasileiros de Cardiologia, 2009
Este estudo avaliou a frequência de cardiopatia chagásica crônica (CCC) em 37 pacientes autóctones da Amazônia com disfunção sistólica ventricular esquerda sem etiologia definida.
João Marcos Bemfica Barbosa Ferreira   +5 more
doaj   +1 more source

MECANISMOS PATOGÊNICOS, FUNÇÃO VENTRICULAR E BIÓPSIA ENDOMIOCÁRDICA NA MIOCARDIOPATIA DILATADA

open access: yesClinical and Biomedical Research, 2020
A miocardiopatia dilatada é uma doença de caráter complexo e multifatorial, em que infecções virais, mecanismos auto-imunes e fatores genéticos produzem lesão miocárdica definitiva.
Beatriz Piva e Mattos
doaj   +1 more source

Comorbid CAD and Ventricular Hypertrophy Compromise The Perfusion of Myocardial Tissue at Subcritical Stenosis of Epicardial Coronaries [PDF]

open access: yes, 2018
BACKGROUND: Most studies of CAD revascularization have been based on and reported according to angiographic criteria which don't consider the relation between the resulting effective flow distal to the stenosis and the demand of a hypertrophied myocardial tissue.
arxiv   +1 more source

A Statistical Index for Early Diagnosis of Ventricular Arrhythmia from the Trend Analysis of ECG Phase-portraits [PDF]

open access: yesPhysiological Measurement, vol. 36, no. 1, pp. 107-131, January 2015, 2016
In this paper, we propose a novel statistical index for the early diagnosis of ventricular arrhythmia (VA) using the time delay phase-space reconstruction (PSR) technique, from the electrocardiogram (ECG) signal. Patients with two classes of fatal VA - with preceding ventricular premature beats (VPBs) and with no VPBs have been analysed using extensive
arxiv   +1 more source

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