Results 191 to 200 of about 83,574 (295)

Brain strain: Blood flow and metabolism in environmental extremes

Experimental Physiology, EarlyView.
Abstract This narrative review compares and contrasts the most commonly encountered environmental stressors on human cerebrovascular functioning. From high altitude and space, extreme apnoea, heat and cold stress, the impact of these stressors on the regulation of cerebral blood flow (CBF) and oxygen metabolism (CMRO2${\mathrm{CM}}{{\mathrm{R}}_ ...
Dario Vrdoljak, Damian M. Bailey, Travis D. Gibbons, Philip N. Ainslie   +3 more
wiley   +1 more source

Suspected Energy Drink-Induced Acute Coronary Syndrome With Sudden Cardiac Arrest. [PDF]

Case Rep Cardiol
Ramcharan P, Pereira N, Maharaj M, Katwaroo A, Seecheran V, Seecheran R, Lalchansingh D, Seecheran N.   +7 more
europepmc   +1 more source

Nationwide Trends in Hospitalizations for Sudden Cardiac Arrest Before and During the COVID Outbreak. [PDF]

J Clin Med
Daoudi S, Furer A, John K, Chalhoub F, Chee J, Infeld M, Elbaz-Greener G, Homoud M, Udelson J, Madias C, Rozen G.   +10 more
europepmc   +1 more source

Sympathetic stimulation can compensate for hypocalcaemia‐induced bradycardia in human and rabbit sinoatrial node cells

The Journal of Physiology, EarlyView.
Abstract figure legend AC: adenylyl cyclase, APT: adenosine triphosphate, AMP: adenosine monophosphate, cAMP: cyclic adenosine monophosphate, PDE: phosphodiesterase, PKA: protein kinase A, PPT: protein phosphatase, P: phosphorylation, RyR: ryanodine receptor, SERCA: sarcoplasmic/endoplasmic reticulum Ca2+‐adenosine triphosphatase, SR: sarcoplasmic ...
Moritz Linder, Tomas Stary, Gergő Bitay, Norbert Nagy, Axel Loewe   +4 more
wiley   +1 more source

Sudden Cardiac Arrest After Endurance Cycling Due to Silent Three-Vessel Coronary Artery Disease: A Case Report. [PDF]

Cureus
Ganthan RR, Isber R, Fahed J, Gorantla A, Isber N.   +4 more
europepmc   +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

Sudden Cardiac Arrest on the Treadmill: Anomalous Left Main Mimicking Spontaneous Coronary Artery Dissection. [PDF]

JACC Case Rep
Diamond T, Benites-Moya CJ, Karan A, Shakfeh K, Reddy A, Rollini F, Zgheib A.   +6 more
europepmc   +1 more source

Haemodynamic‐energetic mechanism of sudden cardiac death in severe aortic stenosis: A modelling study

The Journal of Physiology, EarlyView.
Abstract figure legend A sudden decrease in total peripheral resistance (TPR), as observed during vasovagal syncope, leads to a reduction in aortic systolic pressure (AO pressure) and afterload. In healthy individuals, the consequent decrease in left ventricular systolic pressure (LV pressure) lowers stroke work and myocardial energy expenditure.
Martin Dvoulety, Michal Sitina
wiley   +1 more source

Sudden cardiac arrest mortality in China: temporal trends and risk factors. [PDF]

Mil Med Res
Yu Y, Wang J, Wang JF, Liu JM, Liu XJ, Gao YC, Wang S, Ding Y, Lu Y, Zhou MG, Ng M, Ao HS.   +11 more
europepmc   +1 more source

Repolarization adaptation to rapid change in heart rate in human models – a review

The Journal of Physiology, EarlyView.
Abstract figure legend This review focuses on non‐invasive assessment of repolarization duration and dispersion (heterogeneity) adaptation to change in heart rate (HR). HR was increased incrementally by left atrial pacing during an electrophysiology (EP) study and by a bolus injection of atropine and in a step up/down fashion by repeated right atrial ...
Lennart Bergfeldt, Karl‐Jonas Axelsson, Pia Dahlberg, Farzad Vahedi, Gunilla Lundahl, Lennart Gransberg   +5 more
wiley   +1 more source