Results 121 to 130 of about 135,663 (215)

Forecasting adverse surgical events using self-supervised transfer learning for physiological signals [PDF]

open access: yesarXiv, 2020
Hundreds of millions of surgical procedures take place annually across the world, which generate a prevalent type of electronic health record (EHR) data comprising time series physiological signals. Here, we present a transferable embedding method (i.e., a method to transform time series signals into input features for predictive machine learning ...
arxiv  

Orthostatic Hypotension and Risk of Clinical and Subclinical Cardiovascular Disease in Middle‐Aged Adults

open access: yesJournal of the American Heart Association : Cardiovascular and Cerebrovascular Disease, 2018
Background Although orthostatic hypotension (OH) is a well‐recognized manifestation of neuropathy and hypovolemia, its contribution to cardiovascular disease (CVD) risk is controversial.
S. Juraschek   +7 more
semanticscholar   +1 more source

Serious outcomes among emergency department patients with presyncope: A systematic review

open access: yesAcademic Emergency Medicine, EarlyView.
Abstract Background Syncope is transient loss of consciousness, and in presyncope, patients experience same prodromal symptoms without losing consciousness. While studies have extensively reported the risk of serious outcome among emergency department (ED) syncope, the outcome for patients with presyncope and their management are not well studied.
Hadi Mirfazaelian   +4 more
wiley   +1 more source

Distributed Stratified Locality Sensitive Hashing for Critical Event Prediction in the Cloud [PDF]

open access: yesarXiv, 2017
The availability of massive healthcare data repositories calls for efficient tools for data-driven medicine. We introduce a distributed system for Stratified Locality Sensitive Hashing to perform fast similarity-based prediction on large medical waveform datasets.
arxiv  

Scaled Small-Gain Approach to Robust Control of LPV Systems with Uncertain Varying Delay [PDF]

open access: yesarXiv, 2020
Linear parameter-varying (LPV) systems with uncertainty in time-varying delays are subject to performance degradation and instability. In this line, we investigate the stability of such systems invoking an input-output stability approach. By considering explicit bounds on the delay rate and time-varying delay uncertainty, the scaled small-gain theorem ...
arxiv  

Human hypoxia models in aerospace medicine: Potential applications for human pharmacological research

open access: yesBritish Journal of Clinical Pharmacology, EarlyView.
Aerospace medicine required controlled terrestrial models to investigate influences of altered atmosphere conditions, such as hypoxia, on human health and performance. These models could potentially be expanded to encompass disease conditions or treatment targets regulated through hypoxia or hypercapnia.
Titiaan E. Post   +4 more
wiley   +1 more source

Atherosclerosis of the carotid bulb is associated with the severity of orthostatic hypotension in non-diabetic adult patients: a cross-sectional study

open access: yesClinical and Experimental Hypertension, 2019
Background: The carotid bulb has a high density of baroreceptors that play an important role in maintaining blood pressure. We hypothesized that atherosclerosis of the carotid bulb would reflect the severity of orthostatic hypotension more accurately ...
Yusuke Kobayashi   +17 more
doaj   +1 more source

Disappearance of orthostatic hypotension after pacemaker implantation in a patient with a long PR interval

open access: yesIndian Heart Journal, 2013
Orthostatic hypotension is the fall in blood pressure when upright and has a high prevalence in elderly population. Diagnostic and therapeutic work-up can be long and difficult.
Elia De Maria   +2 more
doaj   +1 more source

Heart Rate Variability during Periods of Low Blood Pressure as a Predictor of Short-Term Outcome in Preterms [PDF]

open access: yesarXiv, 2018
Efficient management of low blood pressure (BP) in preterm neonates remains challenging with a considerable variability in clinical practice. The ability to assess preterm wellbeing during episodes of low BP will help to decide when and whether hypotension treatment should be initiated.
arxiv  

The efficacy of nonpharmacologic intervention for orthostatic hypotension associated with aging

open access: yesNeurology, 2018
Objective To determine the efficacy and safety of nonpharmacologic interventions for orthostatic hypotension (OH) secondary to aging. Methods A total of 150 orthostatic challenges were performed in 25 older people (age 60–92 years) to determine ...
J. Newton, J. Frith
semanticscholar   +1 more source

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