Results 171 to 180 of about 104,312 (267)

Narrow-QRS Ventricular Tachycardia Due to Microreentry After Iatrogenic Right Bundle Injury. [PDF]

JACC Case Rep
Kim MJ, Jung W, Kim J, Kim JY, Park SJ, On YK, Park KM.   +6 more
europepmc   +1 more source

Cerebrovascular regulation during heat stress

Experimental Physiology, EarlyView.
Abstract Given that the brain is a highly metabolic organ and is enclosed by the skull, effective regulation of cerebral blood flow (CBF), not only for oxygen and nutrients supply but also as a means of convective heat exchange, is critical for preventing excessive elevations in brain temperature.
Kanoko Ito, Manabu Shibasaki
wiley   +1 more source

Passive hyperthermia increases blood circulation in specific regions, largely independent of conduit artery mechanics and cardiac performance

Experimental Physiology, EarlyView.
Abstract Passive hyperthermia increases net peripheral and systemic blood flow in humans and other animals, yet the underlying haemodynamic forces that selectively accelerate blood movement remain incompletely characterized. Wave intensity analysis offers insight into the respective contributions of the heart and the vascular system to changes in blood
Nuno Koch Esteves, Kazuhito Watanabe, Francesca R. Cavallo, Ashraf W. Khir, José González‐Alonso   +4 more
wiley   +1 more source

Cardiac MRI unveils the hidden storm: Myocarditis-induced ventricular tachycardia in a young patient with a structurally normal heart. [PDF]

Radiol Case Rep
Alkhanafsa M, Aloqaily M, Ababneh R, Rhabneh L, Mosleh O, Alfarrajin I, Valiyakath HS, Francis W.   +7 more
europepmc   +1 more source

Haemodynamic responses to head‐up tilt versus lower‐body negative pressure in type 1 diabetes

Experimental Physiology, EarlyView.
Abstract Head‐up tilt (HUT) and lower‐body negative pressure (LBNP) both reduce central blood volume but differ in heart orientation and regional fluid shifts. Whether they evoke comparable cardiovascular regulation when matched for preload remains uncertain.
Victorien Faivre‐Rampant, Jules Warnier, Perrine Larmet, Damien Garcia, Michael Joubert, Damian Miles Bailey, Igor Mekjavic, Hervé Normand, Amir Hodzic   +8 more
wiley   +1 more source

Galectin‐3 plasma levels are associated with left atrial contractile function in long‐distance runners

Experimental Physiology, EarlyView.
Abstract High‐intensity endurance exercise induces myocardial remodelling as an adaptive response to sustained volume overload, but excessive cumulative training might also favour deleterious cardiac remodelling, including atrial fibrosis. Whether acute marathon running engages circulating fibrosis‐related biomarkers and whether these biomarkers track ...
Felipe Contreras‐Briceño, Fernanda Sanhueza‐Olivares, Rodrigo Fernández, Silvana Llevaneras, Pablo F. Castro, Luigi Gabrielli, Mario Chiong   +6 more
wiley   +1 more source

The impact of biological sex and stroke volume constituents on heterogeneity in the Q̇$\dot{Q}$–V̇O2${{\dot{V}}_{{{{\mathrm{O}}}_2}}}$ relationship and skeletal muscle saturation during cycling

Experimental Physiology, EarlyView.
Abstract Interindividual variability in the cardiac output (Q̇$\dot{Q}$) to the rate of oxygen consumption (V̇O2${{\dot{V}}_{{{{\mathrm{O}}}_2}}}$) slope (Q̇$\dot{Q}$–V̇O2${{\dot{V}}_{{{{\mathrm{O}}}_2}}}$) in healthy males is related to stroke volume (SV); however, the impact of differences in left ventricular (LV) structure and function as well as ...
Adam N. Di Salvo, Sinan Osman, Jacob L. Schwartz, Nino Nikolovski, Robert F. Bentley   +4 more
wiley   +1 more source

In silico modelling of multi‐electrode arrays for enhancing cardiac drug testing on hiPSC‐CM heterogeneous tissues

The Journal of Physiology, EarlyView.
Abstract figure legend Schematic overview of the experimental and computational framework for investigating hiPSC‐CM electrophysiology with MEA systems. The MEA‐based model integrates experimental data with phenotype‐specific ionic models and tissue‐level heterogeneity.
Sofia Botti, Rolf Krause, Luca F. Pavarino   +2 more
wiley   +1 more source

Sex‐specific differences in mortality and neurocardiac interactions in the Kv1.1 knockout mouse model of sudden unexpected death in epilepsy (SUDEP)

The Journal of Physiology, EarlyView.
Abstract figure legend The Kcna1 knockout mouse model of sudden unexpected death in epilepsy (SUDEP) exhibits sex‐specific differences in SUDEP risk. Female mice exhibit a lower SUDEP risk than males, despite similar seizure characteristics and interictal cardiac function across sexes.
Kelsey Paulhus, Praveen Kumar, Kelly Kneale, T. Noah Hutson, Nicole M. Gautier‐Hall, Deng‐Shan Shiau, Megan Watts, Krystle Trosclair, Hemangini A. Dhaibar, Paari Dominic, Leonidas Iasemidis, Edward Glasscock   +11 more
wiley   +1 more source

Mechanisms underlying local Ca2+ signalling differences between right and left atrial myocytes at normal and increased frequencies

The Journal of Physiology, EarlyView.
Abstract figure legend Left atrial myocytes have TAT‐associated faster Ca2+ release but are more prone to maladaptation at higher frequencies due to weaker peripheral SR Ca2+ uptake and smaller trigger Ca2+ current. Abstract Changes in heart rate affect Ca2+ signalling and contractility in ventricular muscle, but the effects on atrial Ca2+ signalling ...
Joon‐Chul Kim, Hieu Trong Huynh, Phuong Kim Luong, Tran Nguyet Trinh, Yixuan Wu, Eleonora Grandi, Sun‐Hee Woo   +6 more
wiley   +1 more source