Results 271 to 280 of about 111,998 (342)

Ecocardiografia-doppler e parâmetros hemodinâmicos em cardiopatias congênitas com hiperfluxo pulmonar Ecocardiografia-doppler y parámetros hemodinámicos en cardiopatías congénitas con hiperflujo pulmonar Doppler echocardiography and hemodynamic parameters in congenital heart disease with increased pulmonary flow

, 2010
Zilma Verçosa de Sá Ribeiro, Jeane Mike Tsutsui, Rogério dos Anjos Miranda, Samira Mohry, Wilson Mathias, Antônio Augusto Lopes   +5 more
openalex   +1 more source

Cerebral haemodynamic responses to inspiratory muscle work

Experimental Physiology, EarlyView.
Abstract Fatiguing inspiratory work has been shown to evoke a sympathetically mediated reflex that has systemic cardiovascular consequences, including increases in heart rate and blood pressure and a decrease in resting limb vascular conductance. Moreover, the response to this reflex appears to be attenuated in females compared with males.
Andrew H. Ramsook, Morgan A. Hughes, Wyatt W. Pruter, Kevin L. Webb, Ali Ataie, Chad C. Wiggins, Gabrielle A. Dillon, Sarah E. Baker, Michael J. Joyner   +8 more
wiley   +1 more source

Noradrenergic regulation of skeletal muscle oxygen pressures: Impact of heart failure with preserved ejection fraction and heat therapy

Experimental Physiology, EarlyView.
Abstract Attenuation of sympathetic vasoconstriction during exercise (functional sympatholysis) contributes to skeletal muscle oxygen delivery–utilization matching. However, the extent to which muscle contractions impact noradrenergic regulation of interstitial oxygen pressures (PO2is${P_{{{\mathrm{O}}_2}}}_{{\mathrm{is}}}$; the driving force for blood–
Edward T. N. Calvo, Jacob M. Pontorno, Benjamin Zeidler, Taciane M. M. Pejon, Michael D. Belbis, Scott K. Ferguson, Craig J. Goergen, Timothy P. Gavin, Bruno T. Roseguini, Igor A. Fernandes, Daniel M. Hirai   +10 more
wiley   +1 more source

A Patient-Specific CFD Pipeline Using Doppler Echocardiography for Application in Coarctation of the Aorta in a Limited Resource Clinical Context. [PDF]

Front Bioeng Biotechnol, 2020
Swanson L, Owen B, Keshmiri A, Deyranlou A, Aldersley T, Lawrenson J, Human P, De Decker R, Fourie B, Comitis G, Engel ME, Keavney B, Zühlke L, Ngoepe M, Revell A.   +14 more
europepmc   +1 more source

Left ventricular morphological and functional predictors of V̇O2peak${\dot V_{{{\mathrm{O}}_2}{\mathrm{peak}}}}$: A 3‐year observational study

Experimental Physiology, EarlyView.
Abstract The aim of the study was to identify central determinants of V̇O2peak${\dot V_{{{\mathrm{O}}_2}{\mathrm{peak}}}}$ using a 3‐year longitudinal evaluation of left ventricular (LV) morphological and functional (global, tissue‐Doppler and strain) outcome measures obtained at rest and during both submaximal and maximal exercise in a group of highly
Viswanath B. Unnithan, Alexander Beaumont, Thomas Rowland, Keith George, Antonio Dello Iacono, Nicholas Sculthorpe, Rachel N. Lord, David L. Oxborough   +7 more
wiley   +1 more source

Sex differences in cerebral blood flow and cardiac function in response to exercise in the heat

Experimental Physiology, EarlyView.
Abstract We investigated the effect of exercising in hot conditions on cerebral blood flow and systolic left ventricular (LV) function in males and females, to explore sex differences. The experimental condition consisted of walking on a treadmill at 5 km/h and 2% incline, inside a heat chamber at 40°C (50% relative humidity), for 90 min.
João Carlos Locatelli, Juliene G. Costa, Kristanti W. Wigati, Jesse L. Criddle, Julie J. Collis, Xingwei Xu, Louise H. Naylor, Howard H. Carter, Shane K. Maloney, Robert A. McLaughlin, Andrew Haynes, Helen Jones, Keith George, Daniel J. Green   +13 more
wiley   +1 more source

Prediabetic cardiomyopathy is attenuated by hypothalamic PVN oxytocin neuron activation

The Journal of Physiology, EarlyView.
Abstract figure legend A long‐term high‐fat, high‐fructose diet induces prediabetes with insulin resistance, hyperinsulinaemia, elevated triglycerides and metabolic‐associated steatotic liver disease (MASLD) in male rats. Animals developed prediabetic cardiomyopathy characterized by diastolic dysfunction, interstitial fibrosis and tachycardia ...
Anna Nilsson, Joan Escobar, Kira Kuraoka, Ian Venter, Cielo A. Carnate, Matthew W. Kay, David Mendelowitz, Kathryn J. Schunke   +7 more
wiley   +1 more source

Acute intermittent hypercapnic hypoxia augments left ventricular contractility

The 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, Alex M. Williams, Philip J. Millar, Megan L. Lance, Brooke M. Shafer, Conan L. H. Shing, Jordan D. Bird, Christopher R. West, Glen E. Foster   +8 more
wiley   +1 more source

Pulmonary arterial mechanoreceptors modulate exercise‐induced sympathetic activation in healthy humans during moderate‐intensity hypoxic exercise

The Journal of Physiology, EarlyView.
Abstract figure legend This randomized cross‐over trial (N = 12) addressed the hypothesis that selective reduction of pulmonary arterial pressure (i.e. manipulation of pulmonary arterial mechanoreceptor activation) during hypoxic exercise would reduce sympathetic outflow (muscle sympathetic nerve activity (MSNA)) in healthy humans.
Michiel T. Ewalts, Thomas D. Griffiths, Andrew J. M. Douglas, Elliott J. Jenkins, Guto Wyn Hughes, Craig D. Steinback, Lydia L. Simpson, Samuel J. Oliver, Mike Stembridge, Jonathan P. Moore   +9 more
wiley   +1 more source

Combining Detailed Fetal Anatomy Scanning in the NT Window Versus Early Second Trimester Scanning at 14–16 Weeks

Journal of Ultrasound in Medicine, Volume 45, Issue 1, Page 105-113, January 2026.
Objectives First‐trimester ultrasound has evolved to incorporate a detailed fetal anatomy scan (FAS) with nuchal translucency (NT) screening. Many institutions use a 2‐visit protocol: NT followed by detailed FAS at 14–16 weeks. We aimed to evaluate whether integrating detailed FAS into the NT window (12 + 5 to 13 + 6 weeks) is non‐inferior in ...
Tomer Shwartz, Sarah M. Cohen, Michal Lipschuetz, Hila Hochler, Yaron Zalel, Dan V. Valsky, Simcha Yagel   +6 more
wiley   +1 more source