Results 91 to 100 of about 49,052 (280)
Transfusion Medicine, EarlyView.Abstract Background Haemoglobin plays a crucial role in oxygen transport, and any acute deviation will trigger compensatory hemodynamic functions. While the consequences of anaemia are well documented, the effects of haemoglobin reduction in individuals without anaemia remain less explored. Patients with polycythaemia vera and healthy blood donors, who
Rik P. B. Tonino +3 more
wiley +1 more source
Towards Understanding the Genetic Nature of Vasovagal Syncope
International Journal of Molecular Sciences, 2021 Syncope, defined as a transient loss of consciousness caused by transient global cerebral hypoperfusion, affects 30–40% of humans during their lifetime.
N. Matveeva +4 more
semanticscholar +1 more source
Uloga tilt testa u diferencijalnoj dijagnostici neobjašnjene sinkope [PDF]
, 2015 The aim of this retrospective study (February 2012 – September 2014) was to assess the role of head-up tilt-table test in patients with unexplained syncope.
Hrvoje Hećimović +4 more
core +1 more source
Evolution of the human fear-circuitry and acute sociogenic pseudoneurological symptoms: The Neolithic balanced-polymorphism hypothesis [PDF]
, 2005 In light of the increasing threat of large-scale massacres such as terrorism against non-combatants (civilians), more attention is warranted not only to posttraumatic stress disorder (PTSD) but also to acute sociogenic pseudoneurological ("conversion ...
Bracha, Dr. H. Stefan +3 more
core +1 more source
Transfusion, EarlyView.Abstract Background Vasovagal reactions (VVRs; faintness or fainting) can harm donor health and retention. Higher VVR rates are often observed in first‐time donors and donors with VVR histories. We quantified associations between donation history (including donation experience, donation frequency, and VVR history) and VVR symptom reports in donors in ...
Yaning Wu +10 more
wiley +1 more source
Machine Learning Model Using Heart Rate Variability for the Prediction of Vasovagal Syncope
IEEE AccessVasovagal syncope is a reversible condition that can cause serious events, such as cerebral hemorrhage. Predicting its occurrence is challenging; thus, this study aimed to develop machine learning models that use heart rate variability to predict the ...
Hyeon Bin Lee +5 more
doaj +1 more source
Frontiers in Neurology, 2014 Sinusoidal galvanic vestibular stimulation (sGVS) induces oscillations in blood pressure (BP) and heart rate (HR) i.e., vasovagal oscillations, and decreases in BP and HR i.e., vasovagal responses, in isoflurane-anesthetized rats.
Sergei B. Yakushin +6 more
doaj +1 more source
Genetics of vasovagal syncope [PDF]
Autonomic Neuroscience, 2014 Vasovagal syncope (VVS) is the most frequent type of syncope and affects about 25% of the population. The role of genetic factors in VVS has long been debated. In this review we will discuss the current evidence that strongly suggests a major genetic component.Family aggregation studies have consistently shown that individuals with VVS more frequently ...
Klein, KM, Berkovic, SF
openaire +3 more sources
Experience of blood donation and return for subsequent donation among new and repeat donors
Transfusion, EarlyView.Abstract Background Understanding factors that influence return for subsequent donation in new compared to repeat blood donors is essential to recruiting and maintaining the blood donor base. Study Design and Methods The current research assessed self‐reported attitudes, social norms, perceived behavioral control, intentions to donate, experiences ...
William Fisher, Taylor Kohut, Jennie Haw
wiley +1 more source
Structural heart disease as the cause of syncope
Brazilian Journal of Medical and Biological Research, 2018 We described the clinical evolution of patients with structural heart disease presenting at the emergency room with syncope. Patients were stratified according to their syncope etiology and available scores for syncope prognostication.
R.B. Guimarães +9 more
doaj +1 more source