Results 81 to 90 of about 74,924 (301)

Chrysin alleviates pressure overload–induced myocardial remodeling through regulating the PI3K/AKT/NRF2 pathway–mediated oxidative stress response

open access: yesAnimal Models and Experimental Medicine, EarlyView.
In this study, we primarily simulated pathological myocardial remodeling induced by transverse aortic constriction surgery and found significant cardiac hypertrophy and fibrosis, characterized by deteriorated cardiac function. Oxidative stress response is considered as a pivotal pathological process, which contributes to inflammation and apoptosis of ...
Yijia Wang   +12 more
wiley   +1 more source

Dyssynchrony Induced by Ventricular Preexcitation: A Risk Factor for the Development of Dilated Cardiomyopathy

open access: yesCardiovascular Innovations and Applications, 2020
Background: Significant left ventricular dysfunction may arise in right-sided accessory pathways with ventricular preexcitation in the absence of recurrent or incessant tachycardia.
Chencheng Dai   +5 more
doaj   +1 more source

Morphological and morphometric aspects of the equine aortic valve: New insights for comparative studies in mammals

open access: yesThe Anatomical Record, EarlyView.
Abstract New data on the equine aortic valve obtained using advanced techniques is especially important given the greater availability of animal models for translational research. Here we characterized the morphological and morphometric aspects of the equine aortic valve from 60 healthy hearts collected at equine abattoirs.
Vitor Pires Pereira   +3 more
wiley   +1 more source

Epicardial deployment of right ventricular disk during perventricular device closure in a child with apical muscular ventricular septal defect

open access: yesAnnals of Pediatric Cardiology, 2013
We report a successful perventricular closure of an apical muscular ventricular septal defect (mVSD) by a modified technique. An eight-month-old infant, weighing 6.5 kilograms, presented with refractory heart failure.
Nageswara Rao Koneti   +5 more
doaj   +1 more source

From armadillos to sloths: Patterns and variations in xenarthran coronary anatomy

open access: yesThe Anatomical Record, EarlyView.
Abstract Species of the superorder Xenarthra play a vital ecological role in the Neotropics. Despite their evolutionary significance, anatomical studies on their coronary circulation remain scarce. This study investigated the coronary anatomy of 82 hearts from nine Xenarthra species across the Dasypodidae, Myrmecophagidae, and Bradypodidae.
Wilson Viotto‐Souza   +5 more
wiley   +1 more source

Representative 12-lead electrocardiograms of premature ventricular contractions originating from the right ventricular septum.

open access: yes, 2013
A: the superoseptal portion of the tricuspid valvular right ventricular region; B: the midseptal portion of the tricuspid valvular right ventricular region; C: the inferoseptal portion of the tricuspid valvular right ventricular region; D: the ...
Ji Kang-Ting (426629)   +10 more
core   +1 more source

Cardiac morphological and morphometric analysis of Ardea alba

open access: yesThe Anatomical Record, EarlyView.
Abstract Ardea alba (Linnaeus, 1758) is a widely distributed heron species whose cardiovascular morphology remains poorly described. This study aimed to characterize the cardiac morphology and morphometry of adult A. alba. Ten specimens were analyzed using radiographic, morphometric, histological, scanning electron microscopy, and three‐dimensional ...
Julia Vaz Feio   +5 more
wiley   +1 more source

An Intraoperative Fluoroscopic Predictor of Successful Micra Implantation on the Right Ventricular Mid‐Septum

open access: yesJournal of Arrhythmia
Background The Micra transcatheter pacing system has been adopted globally. However, the procedural parameters for safe Micra implantation on the ventricular wall, particularly in the mid‐septum, remain unknown.
Misun Pak   +3 more
doaj   +1 more source

Rupture of a giant cardiac hydatid cyst in the left ventricular free wall: successful surgical management of a rare entity [PDF]

open access: yes
Hydatid cyst of heart is a rare but potentially fatal site of pathology, especially left ventricular free wall. We managed a successful surgical treatment on a case of a 24 year old man who had a giant cardiac hydatid cyst (71 x 64 mm) that ruptured left
حسینیان, عدالت   +6 more
core  

Excitation of the Isolated Ventricular Septum of the Heart

open access: yesExperimental Biology and Medicine, 1951
Conclusions1. It is possible to obtain electrograms on the isolated perfused dog's ventricular septum, and these show a reproducible pattern. 2. The records indicate that the excitatory process in these experiments traveled in a complicated fashion and the pattern varied somewhat from animal to animal. In some of the experiments the excitatory pathways
H B, BURCHELL, R D, PRUITT, H E, ESSEX
openaire   +2 more sources

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