Results 31 to 40 of about 25,399 (257)

Ventricular arrhythmias originating from the basal septum of the ventricle: Clinical and electrophysiological characteristics and a systematic ablation approach

open access: yesFrontiers in Cardiovascular Medicine, 2022
BackgroundThere is a paucity of data about VAs clustered at the vicinity of the basal septum of the ventricle. We aimed to report and characterize the clinical and electrophysiological features of basal septum VAs and explore the systematic ablation ...
Linsheng Shi   +11 more
doaj   +1 more source

Mitral annulus morphologic and functional analysis using real time tridimensional echocardiography in patients submitted to unsupported mitral valve repair

open access: yesBrazilian Journal of Cardiovascular Surgery, 2015
Introduction:Mitral valve repair is the treatment of choice to correct mitral insufficiency, although the literature related to mitral valve annulus behavior after mitral repair without use of prosthetic rings is scarce.Objective:To analyze mitral ...
Marco Antônio Vieira Guedes   +6 more
doaj   +1 more source

Ischnocodia annulus (Fabricius) (Coleoptera: Chrysomelidae: Cassidinae): Primeiro Registro para a Mata Atlântica Brasileira, Novas Plantas Hospedeiras e Considerações sobre o Período de Ocorrência

open access: yesEntomoBrasilis, 2016
O objetivo deste trabalho foi realizar novo registro de ocorrência para Ischnocodia annulus (Fabricius), além de fornecer informações sobre plantas hospedeiras e período de ocorrência da espécie.
Marta Custodio Lopes   +1 more
doaj   +1 more source

Fifteen Limit Cycles Bifurcating from a Perturbed Cubic Center

open access: yesDiscrete Dynamics in Nature and Society, 2021
In this work, we study the bifurcation of limit cycles from the period annulus surrounding the origin of a class of cubic polynomial differential systems; when they are perturbed inside the class of all polynomial differential systems of degree six, we ...
Amor Menaceur   +3 more
doaj   +1 more source

Rare Giant Goronary Sinus Aneurysm with Aortic Dissection: A Case Report [PDF]

open access: yesAdvanced Ultrasound in Diagnosis and Therapy, 2020
Aortic sinus aneurysm is a rare congenital malformation. During the embryonic period, dysplasia occurs in the middle elastic fiber of the aortic sinus wall and insufficient fusion occurs in the aortic valve annulus.
Jing Ma, PhD, Tao Ma, MD, Jianmin Lu, MD, Xiangke Ma, PhD
doaj   +1 more source

Robustness of periodic point free maps of the annulus

open access: yesTopology and its Applications, 1996
This paper focuses on the construction of a diffeomorphism of the annulus into itself with no periodic points which has the property that, when composed with any sufficiently small rigid rotation, the resulting map also has no periodic points. This result imposes some limitations on strengthening the \(C^1\)-closing lemma of Pugh and Robinson even in ...
Hall, Glen R., Turpin, Mark
openaire   +2 more sources

Early differentation of lamellar structure of the intervertebral disc in staged human embryos

open access: yesJournal of Medical Science, 2015
Introduction. In the vast literature concerning the development of the intervertebral discs controversies exist as to the period of differentiation and structure of the nucleus pulposus and annulus fibrosus.
Witold Woźniak   +7 more
doaj   +1 more source

Assessment of left ventricular long axis contraction in patients with ischemic mitral regurgitation after acute myocardial infarction

open access: yesThe Egyptian Heart Journal, 2014
The development of ischemic mitral regurgitation (MR) after myocardial infarction (MI) may impose hemodynamic load during a period of active left ventricular remodeling and promote heart failure (HF). The aim of our study was to evaluate left ventricular
Ayman Ahmed Abdelaziz, Eid M. Daoud
doaj   +3 more sources

Period functions and critical periods of piecewise linear system

open access: yesElectronic Journal of Differential Equations, 2020
In this article, we study a rich and complex phenomena of planar piecewise linear systems having two domains of which the separation curves are not straight.
Shaoqing Wang, Jiazhong Yang
doaj  

Inhospital changes of left ventricular diastolic function in patients undergoing coronary bypass surgery

open access: yesРоссийский кардиологический журнал, 2022
Aim. To evaluate changes of left ventricular (LV) diastolic function in patients with multivessel coronary artery disease before coronary artery bypass grafting (CABG) and in the early postoperative period (7-10 days), as well as to assess the relation ...
A. R. Mingalimova   +6 more
doaj   +1 more source

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