Results 51 to 60 of about 4,877 (133)

Pacing for Vasovagal Syncope

Indian Pacing and Electrophysiology Journal, 2002
Vasovagal syncope is a common condition, usually associated with a benign prognosis. Most sufferers experience only occasional symptoms, and can be treated with reassurance and lifestyle advice. However, a minority of patients are debilitated by frequent
Nevin T Wijesekera, Arvinder S Kurbaan
doaj  

Machine Learning Model Using Heart Rate Variability for the Prediction of Vasovagal Syncope

IEEE Access
Vasovagal 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, Gangin Park, Moonki Jung, Seung Yong Shin, Sungsoo Cho, Jun Hwan Cho   +5 more
doaj   +1 more source

Hemodynamic measurements for evaluating vasovagal syncope in the emergency department [PDF]

Clinical and Experimental Emergency Medicine, 2015
Syncope is a sudden and transient loss of consciousness and postural tone, with spontaneous recovery without medical intervention. It accounts for 1.0% to 1.5% of emergency department (ED) visits and up to 6% of hospital admissions. Vasovagal syncope may
Stewart Siu-Wa Chan, Junrong Mo, Colin Alexander Graham, Timothy Hudson Rainer   +3 more
doaj   +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

Determinants of maximal oxygen uptake in highly trained females and males: a mechanistic study of sex differences using advanced invasive methods

The Journal of Physiology, EarlyView.
Abstract figure legend The results from this study show that maximal cardiac output, stroke volume and leg blood flow are similar between highly trained females and males after normalisation to lean body mass (LBM). However, the 10% higher haemoglobin concentration ([Hb]) and arterial O2 content in males result in higher systemic and leg O2 delivery ...
Øyvind Skattebo, Marcos Martin‐Rincon, Bjarne Rud, Joachim Nielsen, Lars Henrik N. Hegg, Andreas V. Kleive, Niels Ørtenblad, Øyvind Sandbakk, Robert Boushel, Hans‐Christer Holmberg, Jose A.L. Calbet, Jostein Hallén   +11 more
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, V. Essebag, M. Furlanetto, J.P.G. Yanez, M.G. Farina, D. Garcia, E.D. Almeida, L. Stephan, G.G. Lima, T.L.L. Leiria   +9 more
doaj   +1 more source

Ph‐Negative Acute Lymphoblastic Leukemia in the Older Adults: Biology, Therapeutic Strategies and Unmet Needs

European Journal of Haematology, Volume 117, Issue 1, Page 24-41, July 2026.
ABSTRACT Acute lymphoblastic leukaemia (ALL) in older adults represents a growing clinical challenge, driven by an ageing population, adverse disease biology, and reduced tolerance to intensive chemotherapy. Although pediatric‐inspired regimens have improved outcomes in younger adults with Philadelphia chromosome (Ph)‐negative ALL, survival in older ...
Antonella Bruzzese, Ernesto Vigna, Enrica Antonia Martino, Santino Caserta, Francesco Mendicino, Maria Eugenia Alvaro, Caterina Labanca, Eugenio Lucia, Virginia Olivito, Marco Fiorillo, Nicola Amodio, Fortunato Morabito, Massimo Gentile   +12 more
wiley   +1 more source

Long QT Syndrome Type 5 With Coexisting KCNE1 and RYR2 Variants: A Diagnostic Ambiguity

Clinical Case Reports, Volume 14, Issue 6, June 2026.
ABSTRACT Long QT syndrome (LQTS) predisposes to syncope and sudden cardiac death. Type 5 LQTS, linked to KCNE1 variants, is rare. A teenage female presented with recurrent syncope. ECG showed QTc 485 ms. Genetic testing identified KCNE1 and RYR2 variants. Beta‐blockers and ICD prevented events.
Mohammad Hossein Nikoo, Hossein Fatemian, Amir Hossein Hassani, Mehrdad Rabiee Rad, Sara Mostafavi   +4 more
wiley   +1 more source

Vasovagal oscillations and vasovagal responses produced by the Vestibulo-Sympathetic Reflex in the rat

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, Giorgio eMartinelli, Theodore eRaphan, Yongqing eXiang, Gay R. Holstein, Gay R. Holstein, Bernard eCohen   +6 more
doaj   +1 more source

Syncope as the Initial Presentation of Takayasu Arteritis in a 57‐Year‐Old Female: A Case Report and Literature Review

Clinical Case Reports, Volume 14, Issue 6, June 2026.
ABSTRACT Takayasu arteritis (TA) is a rare chronic granulomatous large‐vessel vasculitis predominantly affecting the aorta and its major branches, leading to stenosis, occlusion, or aneurysm formation. It typically presents in young women, though atypical cases can occur in older adults.
Chao Liu, Jiale Gan, Lili Feng, Yang Yang, Lianwei Dong, Jiabao Liu, Dingguo Zhang   +6 more
wiley   +1 more source