Results 131 to 140 of about 290,434 (263)

An undiagnosed bicuspid aortic valve can result in severe left ventricular failure [PDF]

open access: yes, 2007
Saha, S   +7 more
core   +1 more source

Beat‐to‐beat variability of ventricular repolarization reveals sex‐specific instability and proarrhythmic risk

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend A mechanistic framework linking sex‐dependent dynamical instability to proarrhythmic risk. Sex‐specific human ventricular models show that upstream modulators, including biological sex, hormones, drugs and heart disease, promote steeper APD restitution in female than male and enhance dynamical instability.
Daisuke Sato   +3 more
wiley   +1 more source

“Two‐For‐One”: 4D Cardiac and Pulmonary MR Imaging From a Single Acquisition Using bSTAR

open access: yesMagnetic Resonance in Medicine, Volume 96, Issue 5, Page 2213-2227, November 2026.
ABSTRACT Purpose To generate 4D (3D+time) images of both the heart and lungs using a single volumetric radial free‐breathing bSSFP dual echo acquisition (bSTAR) with two image reconstructions within a single pipeline deployed inline at 0.55 and 1.5 T.
Pierre Daudé   +9 more
wiley   +1 more source

Measurement of systemic resistances in aortic regurgitation.

open access: yes, 1994
Peripheral resistance is usually measured by dividing mean aortic pressure by mean aortic flow. This statement holds true as long as resistance is constant throughout the heart cycle. This is not the case in aortic regurgitation, because during diastole,
Martini M   +7 more
core  

Transcatheter aortic valve implantation for pure native aortic regurgitation : the last frontier

open access: yes, 2022
Transcatheter aortic valve implantation (TAVI) to treat patients with severe symptomatic aortic stenosis is a well-established procedure. Even though cases series have reported TAVI use in high-risk patients with pure native aortic regurgitation, this is
Saadi, Rodrigo Petersen   +2 more
core  

Computed tomographic characterisation and surgical management of a caudal mediastinal paraoesophageal abscess with associated pneumonia in a dog

open access: yesVeterinary Record Case Reports, Volume 14, Issue 4, November 2026.
Abstract An 8‐year‐old, entire, male German shorthaired pointer presented with acute respiratory distress, pyrexia and coughing following a period of boarding. Thoracic radiographs identified a caudal mediastinal mass effect with severe multilobar bronchopneumonia.
Yi Gu   +4 more
wiley   +1 more source

Non-linear finite element analyses of the aortic heart valve [PDF]

open access: yes, 2004
Includes bibliographical references.Finite element models of the aortic heart valve have been successfully used in the past to gain insight into the mechanics of the valve and to aid in understanding of valve failure.
Koch, Thorsten M
core  

Response to equine cardiac adverse events during sports

open access: yesEquine Veterinary Education, Volume 38, Issue 10, Page 556-564, October 2026.
Summary Cardiac adverse events and sudden death are a feared scenario for equine veterinarians, with serious consequences for animal health, riders' safety and the social licence to operate equestrian sports. The response to equine cardiac adverse events (CAEs) during sports is poorly defined.
C. Navas de Solis   +9 more
wiley   +1 more source

Mitral regurgitation and decompensated heart failure in a young pregnant pony mare: An aetiological challenge

open access: yesEquine Veterinary Education, Volume 38, Issue 10, Page e676-e685, October 2026.
Summary A 4‐year‐old, 6‐month pregnant, Welsh pony mare presented with severe acute clinical signs including depression, anorexia, pale mucous membranes, tachycardia with a grade 4/6 holosystolic murmur and moderate expiratory dyspnoea with diffuse wheezes. There was no evidence of placentitis or fetal distress.
M. F. David   +4 more
wiley   +1 more source

Quadricuspid Aortic Valve Associated with Aortic Regurgitation, Mitral Regurgitation, and Aortic Dilatation

open access: yes, 2017
The quadricuspid aortic valve (QAV) is a very uncommon congenital malformation with an estimated incidence of 0.003% to 0.043% of all congenital heart diseases. Combinations of QAV with several different congenital malformations have been described.
BAŞTUĞ, SERDAL   +5 more
core  

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