Results 31 to 40 of about 38,359 (350)

Paroxysmal Orthostatic Ventricular Tachycardia in a Patient With Supine Hypertension and Orthostatic Hypotension

Journal of Investigative Medicine High Impact Case Reports, 2020
Supine orthostatic hypertension with orthostatic hypotension is an autonomic dysfunction where the patients present with hypertension when supine and with decrease in blood pressure while bearing an upright posture.
Khalil Kanjwal MD, FHRS, Shakeel M. Jamal MD, David W. McComb DO, Majid Mughal MD, Asim Kichloo MD   +4 more
doaj   +1 more source

The hypotensive effect of activated apelin receptor is correlated with \b{eta}-arrestin recruitment [PDF]

Elie Besserer-Offroy, et al. Pharmacol Res, Epub 9 March 2018, 2018
The apelinergic system is an important player in the regulation of both vascular tone and cardiovascular function, making this physiological system an attractive target for drug development for hypertension, heart failure and ischemic heart disease.
arxiv   +1 more source

Systolic orthostatic hypotension is related to lowered cognitive function: Findings from the Maine-Syracuse Longitudinal Study [PDF]

, 2017
The aim of the present study was to examine the relationship between orthostatic changes in blood pressure (BP) and cognition, with consideration given to cardiovascular risk factors and lifestyle variables.
Crichton, Georgina E., Davey, Adam, Dore, Gregory A., Elias, Merrill, Torres, Rachael V.   +4 more
core   +2 more sources

How resistant are levodopa‐resistant axial symptoms? Response of freezing, posture, and voice to increasing levodopa intestinal infusion rates in Parkinson disease

European Journal of Neurology, Volume 30, Issue 1, Page 96-106, January 2023., 2023
Abstract Background and purpose Treatment of freezing of gait (FoG) and other Parkinson disease (PD) axial symptoms is challenging. Systematic assessments of axial symptoms at progressively increasing levodopa doses are lacking. We sought to analyze the resistance to high levodopa doses of FoG, posture, speech, and altered gait features presenting in ...
Gabriele Imbalzano, Domiziana Rinaldi, Giovanna Calandra‐Buonaura, Manuela Contin, Federica Amato, Giulia Giannini, Luisa Sambati, Claudia Ledda, Alberto Romagnolo, Gabriella Olmo, Pietro Cortelli, Maurizio Zibetti, Leonardo Lopiano, Carlo Alberto Artusi   +13 more
wiley   +1 more source

Evaluation of risk of falls and orthostatic hypotension in older, long-term topical beta-blocker users [PDF]

, 2009
Background: Falls are a serious problem in the elderly, and have recently been described as cardiovascular-mediated side effects of beta-blocker eye drops.
A Black, A Heijl, A Waldock, AJ Campbell, AJ Campbell, American Geriatrics Society, British Geriatrics Society, and American Academy of Orthopaedic Surgeons Panel on Falls Prevention, CV Leier, DE Everitt, G Ziere, GD Novack, JA Zanden Vander, JF Kirwan, JF Kirwan, M Brignole, M Brignole, M Brignole, m dETRY-mOREL, ME Muller, ML Vuori, N Velde van der, N Velde van der, Nathalie van der Velde, P Diggory, P Diggory, P Diggory, PC Maier, PJ Lama, R Valk van der, R Valk van der, RM Leipzig, RM Leipzig, Roger C. W. Wolfs, SN Wong, SR Cummings, T Kaila, The Consensus Committee of the American Autonomic Society and the American Academy of Neurology, Tischa J. M. van der Cammen, WB White, WC Stewart, WH Frishman, Wishal D. Ramdas, WP Munroe   +41 more
core   +9 more sources

Postural changes in optic nerve and optic nerve sheath diameters in postural orthostatic tachycardia syndrome and spontaneous intracranial hypotension: A cohort study.

PLoS ONE, 2019
BackgroundPostural orthostatic tachycardia syndrome is a disorder of the autonomic nervous system. Approximately 30% of patients experience orthostatic headaches.
Debora Cipriani, Belén Rodriguez, Levin Häni, Raya Zimmermann, Jens Fichtner, Christian T Ulrich, Andreas Raabe, Jürgen Beck, Werner J Z'Graggen   +8 more
doaj   +1 more source

Identifying Decision Points for Safe and Interpretable Reinforcement Learning in Hypotension Treatment [PDF]

arXiv, 2021
Many batch RL health applications first discretize time into fixed intervals. However, this discretization both loses resolution and forces a policy computation at each (potentially fine) interval. In this work, we develop a novel framework to compress continuous trajectories into a few, interpretable decision points --places where the batch data ...
arxiv  

Author response: Effects of orthostatic hypotension on cognition in Parkinson disease [PDF]

, 2017
OBJECTIVE: To investigate the relation between orthostatic hypotension (OH) and posture-mediated cognitive impairment in persons with Parkinson's disease (PD) without dementia.
Canova, Alexander O., Centi, Justin, Cronin-Golomb, Alice, Freeman, Roy, Gibbons, Christopher H., Neargarder, Sandy   +5 more
core   +1 more source

Cerebrospinal fluid biomarkers of superficial siderosis in patients with spontaneous intracranial hypotension

European Journal of Neurology, Volume 30, Issue 1, Page 235-240, January 2023., 2023
Cerebrospinal fluid (CSF) alterations indicative of infratentorial superficial siderosis are prevalent amongst patients with SIH. It is speculated that a preclinical phase without symptoms or imaging signs but during which elevated biomarkers of the disease are apparent from CSF analysis might exist.
Levin Häni, Christian Fung, Christopher Marvin Jesse, Christof Schild, Eike Immo Piechowiak, Tomas Dobrocky, Andreas Raabe, Jürgen Beck   +7 more
wiley   +1 more source

Postural Orthostatic Tachycardia Syndrome explained using abaroreflex response model [PDF]

arXiv, 2021
Recent studies have shown that Postural Orthostatic Tachycardia Syndrome (POTS) patients have abnormal low frequency $\approx 0.1$ Hz blood pressure and heart rate dynamics. These dynamics are attributed to the baroreflex and can give insight into the mechanistic causes which are the basis for proposed subgroups of POTS.
arxiv