Results 61 to 70 of about 14,997,547 (283)

Diagnosis and Treatment of Syncope

Journal of Arrhythmia, 2006
Accurate diagnosis of syncope is essential because it ranges from cardiac syncope with a very poor prognosis to neurally-mediated syncope (NMS) with a relatively favorable prognosis.
Youichi Kobayashi, MD
doaj   +1 more source

EVALUATION OF ORTHOSTATIC HYPOTENSION BY USING HUTT

Pakistan Armed Forces Medical Journal, 2020
Objective: To determine the prevalence of orthostatic hypotension in our patient population by using Head Up Tilt Test (HUTT). Study Design: Descriptive cross-sectional study.
Qurban Hussain Khan, Muhammad Asad, Waqas Baloch, Mian Muhammad Amer Naseem, Muhammad Shabbir, Azmat Hayat   +5 more
doaj   +1 more source

Clinical characteristics of study population (n = 671) including haemodynamic parameters observed during head-up tilt test.

, 2015
All values are given as mean ± standard deviation, unless otherwise stated.Clinical characteristics of study population (n = 671) including haemodynamic parameters observed during head-up tilt test.
Olle Melander (25955), David Nilsson (751239), Widet Tas (751240), Richard Sutton (454074), Artur Fedorowski (751242), Philippe Burri (751241)   +5 more
core   +1 more source

A cardiovascular mathematical model of graded head-up tilt [PDF]

, 2013
A lumped parameter model of the cardiovascular system has been developed and optimized using experimental data obtained from 13 healthy subjects during graded head-up tilt (HUT) from the supine position to [Formula: see text].
Gregory S H Chan, Dokos, Socrates, Karunanithi, Mohan, Ng, Siew C., Vandenberghe, Stijn, Mohan Karunanithi, Stijn Vandenberghe, Latif, Lydia A., Lim, Einly, Einly Lim, Socrates Dokos, Nigel H Lovell, Chan, Gregory S. H., Lovell, Nigel H., Siew C Ng, Lydia A Latif   +15 more
core   +3 more sources

Long‐Term Efficacy of Immunotherapy in Autoimmune Autonomic Ganglionopathy—A 10‐Year Follow Up Study

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Autoimmune autonomic ganglionopathy (AAG) is a rare but potentially treatable cause of severe autonomic failure. Evidence guiding long‐term immunotherapy, treatment sequencing, and residual autonomic impairment is limited. We evaluated long‐term treatment response, residual autonomic dysfunction, and relapse patterns in patients with
Giacomo Chiaro, Shiwen Koay, Gordon T. Ingle, Patricia McNamara, Laura Watson, Fion Bremner, Valeria Iodice   +6 more
wiley   +1 more source

Dynamical Pattern Representation of Cardiovascular Couplings Evoked by Head-up Tilt Test

Entropy, 2018
Shannon entropy (ShE) is a recognised tool for the quantization of the temporal organization of time series. Transfer entropy (TE) provides insight into the dependence between coupled systems.
Danuta Makowiec, Dorota Wejer, Beata Graff, Zbigniew R. Struzik   +3 more
doaj   +1 more source

T1 Over Squared Proton Density Ratio to Characterize Multiple Sclerosis Lesions

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Differentiating remyelinated from demyelinated lesions in MS remains challenging without histological confirmation. This study introduces the T1‐to‐PD2 ratio (TPR) imaging approach and evaluates its ability to characterize MS lesions alongside other quantitative MRI (qMRI) metrics. Methods Thirty individuals with MS (mean age: 47.5 ± 
Sarah J. Wright, Scotty G. McKay, Jean Ramos Bou, Fen Bao, Vivian B. Truong, Chenyang Li, Li Jiang, Anza B. Memon, E. Mark Haacke, Yulin Ge, Yongsheng Chen   +10 more
wiley   +1 more source

Upper Cervical Cord Area as a Biomarker of Conversion to Secondary Progressive Multiple Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective This study assessed whether upper cervical cord area (UCCA) measured on routine brain MRI can serve as a biomarker of conversion to SPMS. Methods This is a single‐center retrospective cohort study of RRMS patients with cross‐sectional and longitudinal analyses of clinical and MRI data. Future SPMS converters were matched by age, sex,
Nabil K. El Ayoubi, Sola Al Ghazal, Salem Hannoun, Medhat A. Siddik, Nour M. Najjar, Jim Dagher, Joseph Abboud, Myriam G. Semaan, Samia J. Khoury   +8 more
wiley   +1 more source

Characterizing Cutaneous α‐Synuclein Deposition and Seeding Activity in Parkinson's Disease Subtypes

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Cutaneous phosphorylated α‐synuclein (p‐syn) and α‐synuclein seeding activity are promising biomarkers for Parkinson's disease (PD), but their clinical value remains uncertain due to disease heterogeneity. This study evaluates these two biomarkers in PD patients to inform phenotype‐specific diagnosis and disease severity assessment ...
Yuting Jin, Tianyuan Yang, Minglei Liu, Haiyang Luo, Jing Yuan, Ke Zhang, Xinsheng Han, Jing Yang, Yuming Xu   +8 more
wiley   +1 more source

Gravity‐Dependent Modulation of Downbeat Nystagmus: Insights From Velocity‐Storage Dysfunction

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Downbeat nystagmus varies with head position, a phenomenon termed gravity‐dependent modulation. We aimed to clarify its mechanism using a velocity‐storage model. Methods In 10 patients with downbeat nystagmus due to cerebellar disorders, we recorded eye movements at different pitch‐ and roll‐axis head positions.
Ji‐Hyung Park, Eun‐Hyuk Choi, Jorge Otero‐Millan, David S. Zee, Jeong‐Yoon Choi, Ji‐Soo Kim   +5 more
wiley   +1 more source