Results 151 to 160 of about 91,311 (285)

Indicaciones de la ecocardiografía transesofágica. Indications for transesophageal echocardiography.

open access: yesRevista Cubana de Cardiología y Cirugía Cardiovascular, 1997
La ecocardiografía transesofágica brinda una segunda ventana para la exploración del corazón, con la que se eliminan las limitaciones de la ecocardiografía transtorácica.
Manuel Gerardo Amador Antuna   +5 more
doaj  

Acute intermittent hypercapnic hypoxia augments left ventricular contractility

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Twenty‐four healthy adults were studied to determine the effects of an acute session of 40 min of intermittent hypercapnic hypoxia on cardiac performance. Cardiac function was assessed via echocardiography at rest and during graded stages of lower‐body negative pressure before and after the intervention to quantify load ...
Scott F. Thrall   +8 more
wiley   +1 more source

Long‐term passive heat acclimation enhances maximal oxygen consumption via haematological and cardiac adaptation in endurance runners

open access: yesThe Journal of Physiology, EarlyView.
Abstract Figure Legend Endurance‐trained runners completed a 5‐week hot‐water‐immersion (HWI) intervention (≥40°C, 45 min, five sessions per week) and a training‐matched control period in a cross‐over design. HWI induced a 33 g increase in haemoglobin mass (Hbmass) and a 10 mL expansion in left‐ventricular end‐diastolic volume (LVEDV), resulting in a 2.
Elliott J. Jenkins   +7 more
wiley   +1 more source

Role of reactive oxygen species in mediating peripheral hypoxic vasodilation and sympathoexcitation at high altitude

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend High‐altitude acclimatisation increases muscle sympathetic nerve activity (MSNA) via activation of the arterial chemoreflex, pulmonary arterial baroreceptors and resetting of the sympathetic vascular baroreflex. However attempting to silence these mechanisms only partially normalises MSNA, implicating other contributory ...
Liam D. Corr   +15 more
wiley   +1 more source

The influence of metaboreflex activation on pulmonary pressure with combined chemoreflex activation in acute and chronic hypoxia

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Activation of both the metaboreflex via post‐exercise circulatory occlusion and the chemoreflex via acute and chronic hypoxia increased pulmonary artery systolic pressure. Coactivation of these reflexes further increased pulmonary artery pressure in an additive manner.
Lauren E. Maier   +13 more
wiley   +1 more source

Visualization of the True Left Ventricular Apex on Transthoracic Echocardiography. [PDF]

open access: yesEchocardiography
Okazaki N   +8 more
europepmc   +1 more source

The anatomy of interatrial communications - what does the interventionist need to know?

open access: yes, 2000
Increasingly, the interventional cardiologist is seeking to close interatrial communications by inserting devices by means of catheterisation. So as to optimise these procedures, it is adavantageous to have a firm grasp of the anatomy of the normal ...
Anderson, RH, Martins, JDF
core  

Plasma exosomal miR‐339‐3p promotes myocardial remodeling in chronic heart failure by regulating USP25‐mediated DDX58 deubiquitination

open access: yesJournal of Cell Communication and Signaling, Volume 20, Issue 3, September 2026.
In the patients of chronic heart failure (HF), miR‐339‐3p derived from plasma exosomes can target ubiquitin‐specific protease 25, inhibiting its K48‐linked deubiquitination modification of DDX58, leading to increased ubiquitination and degradation of DDX58.
Guoqiang Jing, Ting Xu, Yuhong Ma
wiley   +1 more source

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