keyword
MENU ▼
Read by QxMD icon Read
search

Postural orthostatic

keyword
https://www.readbyqxmd.com/read/28031220/pathological-ponto-cerebello-thalamo-cortical-activations-in-primary-orthostatic-tremor-during-lying-and-stance
#1
Florian Schöberl, Katharina Feil, Guoming Xiong, Peter Bartenstein, Christian la Fougére, Klaus Jahn, Thomas Brandt, Michael Strupp, Marianne Dieterich, Andreas Zwergal
Primary orthostatic tremor is a rare neurological disease characterized mainly by a high frequency tremor of the legs while standing. The aim of this study was to identify the common core structures of the oscillatory circuit in orthostatic tremor and how it is modulated by changes of body position. Ten patients with orthostatic tremor and 10 healthy age-matched control subjects underwent a standardized neurological and neuro-ophthalmological examination including electromyographic and posturographic recordings...
January 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28013227/a-prospective-study-of-the-association-between-orthostatic-hypotension-and-falls-definition-matters
#2
Claire McDonald, Mark Pearce, Simon R Kerr, Julia Newton
BACKGROUND: falls are a common cause of morbidity and mortality in older people. Orthostatic hypotension (OH) is considered an important risk factor for falls, but longitudinal studies have failed to show a clear association. This disparity may be because conventional methods of measuring blood pressure (BP) changes are too imprecise and/or the diagnostic criteria for OH are inappropriate. Over recent years, beat-to-beat BP monitoring techniques, which enabled accurate measurement of vasodepression, have become widely used and in 2011 the American Academy of Neurology produced revised diagnostic criteria for OH...
December 23, 2016: Age and Ageing
https://www.readbyqxmd.com/read/28008361/fuzzy-logic-based-risk-of-fall-estimation-using-smartwatch-data-as-a-means-to-form-an-assistive-feedback-mechanism-in-everyday-living-activities
#3
Dimitrios E Iakovakis, Fotini A Papadopoulou, Leontios J Hadjileontiadis
This Letter aims to create a fuzzy logic-based assistive prevention tool for falls, based on accessible sensory technology, such as smartwatch, resulting in monitoring of the risk factors of falls caused by orthostatic hypotension (OH); a drop in systolic blood pressure (DSBP) >20 mmHg due to postural changes. Epidemiological studies have shown that OH is a high risk factor for falls and has a strong impact in quality of life (QoL) of the elderly's, especially for some cases such as Parkinsonians. Based on smartwatch data, it is explored here how statistical features of heart rate variability (HRV) can lead to DSBP prediction and estimation of the risk of fall...
December 2016: Healthcare Technology Letters
https://www.readbyqxmd.com/read/27993582/the-association-between-orthostatic-hypotension-and-handgrip-strength-with-successful-rehabilitation-in-elderly-hip-fracture-patients
#4
L C Hartog, A M Winters, H Roijen, A M Kamper, H Inia, N Kleefstra, H J G Bilo, K J J van Hateren
OBJECTIVE: Our objectives were to investigate the relationship between orthostatic hypotension (OH) and muscle strength versus time to successful rehabilitation within elderly hip fracture patients. DESIGN: A prospective observational cohort study. Handgrip strength was measured at the day of admission and OH as soon as possible after surgery. Cox proportional hazard modelling was used to investigate the relationship between OH, or handgrip strength (kg) and time to successful rehabilitation, expressed as hazard ratios (HR)...
December 16, 2016: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/27959743/autologous-adipose-stem-cell-therapy-for-autonomic-nervous-system-dysfunction-in-two-young-patients
#5
Mohammed T Numan, Ankur Kamdar, Jane Young, Ian Butler
Postural orthostatic tachycardia syndrome and neurocardiogenic syncope are clinical manifestations of autonomic nervous system dysfunction (dysautonomia) that can lead to impaired daily functions. We report two young patients presenting with dysautonomia and autoimmune disease who both received autologous adipose stem cells (ASCs) infusions. This report will be the first description of ASCs therapy for patients with combined dysautonomia and autoimmune disease. Case1: A 21 year female presented at 12 years of age with escalating severe dysautonomia with weight loss and gastrointestinal (GI) symptoms...
December 13, 2016: Stem Cells and Development
https://www.readbyqxmd.com/read/27941082/parental-perceptions-of-pediatric-pain-and-pots-related-disability
#6
Elizabeth M Keating, Ryan M Antiel, Karen E Weiss, Dustin Wallace, Seth J Antiel, Philip R Fischer, Ashley N Junghans-Rutelonis, Cynthia Harbeck-Weber
Adolescents with postural orthostatic tachycardia syndrome (POTS) often have pain and functional impairment. This study evaluated how parental attributions of children's symptoms relate to child functional impairment. Adolescents with chronic pain and clinical symptoms suggestive of autonomic dysfunction (fatigue, dizziness, nausea) that attended a multidisciplinary chronic pain clinic completed measures of depression, anxiety, and functioning (n = 141). Parents of 114 of these patients completed the Parent Pain Attribution Questionnaire (PPAQ), a measure indicating the extent they believe physical and psychosocial factors account for their child's health condition...
December 8, 2016: Clinical Pediatrics
https://www.readbyqxmd.com/read/27938459/recent-advances-in-the-understanding-of-the-mechanisms-underlying-postural-tachycardia-syndrome-in-children-practical-implications-for-treatment
#7
Xiaochun Zheng, Yonghong Chen, Junbao Du
Postural tachycardia syndrome is defined by a heart rate increment of 40 beats/minute (bpm) (or a heart rate that exceeds 125 bpm) within 10 minutes of change from the supine position to an upright position in the absence of obvious orthostatic hypotension. There are multiple pathophysiological mechanisms that underlie postural tachycardia syndrome, including peripheral denervation, β-receptor supersensitivity, hypovolaemia, and impaired muscle pump. Some children afflicted with postural orthostatic tachycardia syndrome and hypovolaemic dysregulation have been found to have perturbed renin-angiotensin-aldosterone profile, disturbed vascular endothelial function, and abnormal vasodilation...
December 12, 2016: Cardiology in the Young
https://www.readbyqxmd.com/read/27903817/effects-of-orthostatic-hypotension-on-cognition-in-parkinson-disease
#8
Justin Centi, Roy Freeman, Christopher H Gibbons, Sandy Neargarder, Alexander O Canova, Alice Cronin-Golomb
OBJECTIVE: To investigate the relation between orthostatic hypotension (OH) and posture-mediated cognitive impairment in Parkinson disease (PD) using a cross-sectional and within-group design. METHODS: Individuals without dementia with idiopathic PD included 18 with OH (PDOH) and 19 without OH; 18 control participants were also included. Neuropsychological tests were conducted in supine and upright-tilted positions. Blood pressure was assessed in each posture. RESULTS: The PD groups performed similarly while supine, demonstrating executive dysfunction in sustained attention and response inhibition, and reduced semantic fluency and verbal memory (encoding and retention)...
January 3, 2017: Neurology
https://www.readbyqxmd.com/read/27894154/perfusion-controlled-mobilization-after-lower-extremity-free-flaps-pushing-the-limits-of-time-and-intensity
#9
Ulf Dornseifer, Charlotte Kleeberger, Lukas Kargl, Markus Schönberger, Daniel Rohde, Milomir Ninkovic, Arndt Schilling
Background The current standard to gradually adapt the fragile perfusion in lower extremity free flaps to an upright posture is the dangling maneuver. This type of flap training neither fits the orthostatic target load of an upright posture, nor does it assist in mobilizing the patients effectively. In this study, we quantitatively analyzed training effects of an early and full mobilization on flap perfusion. Methods A total of 15 patients with gracilis flaps for distal lower extremity reconstruction were included...
November 28, 2016: Journal of Reconstructive Microsurgery
https://www.readbyqxmd.com/read/27884959/cardiac-responses-to-exercise-distinguish-postural-orthostatic-tachycardia-syndrome-variants
#10
Paolo T Pianosi, Darrell R Schroeder, Philip R Fischer
We previously showed that one-third of adolescents with postural orthostatic tachycardia syndrome (POTS) have hyperkinetic circulation. In a subsequent cohort, we compare participants with POTS grouped according to cardiac output (Q˙) versus oxygen uptake (V˙O2) function, whose circulatory response to exercise lay at the lower end of this distribution. We hypothesized that such grouping determines the circulatory response to incremental-protocol, upright, cycle ergometry by whatever blend of flow and resistance adjustments best maintains normal blood pressure...
November 2016: Physiological Reports
https://www.readbyqxmd.com/read/27878227/cardiovascular-coupling-during-graded-postural-challenge-comparison-between-linear-tools-and-joint-symbolic-analysis
#11
Alberto Porta, Anielle C M Takahashi, Aparecida M Catai
Background: A joint symbolic analysis (JSA) is applied to assess the strength of the cardiovascular coupling from spontaneous beat-to-beat variability of the heart period (HP) and the systolic arterial pressure (SAP) during an experimental protocol inducing a gradual baroreflex unloading evoked by postural change (i.e. graded head-up tilt). Method: The adopted JSA can quantify the degree of association between the HP and SAP variabilities as a function of the time scale of the HP and SAP patterns...
June 30, 2016: Brazilian Journal of Physical Therapy
https://www.readbyqxmd.com/read/27867145/human-papillomavirus-vaccines-complex-regional-pain-syndrome-postural-orthostatic-tachycardia-syndrome-and-autonomic-dysfunction-a-review-of-the-regulatory-evidence-from-the-european-medicines-agency
#12
Tom Jefferson, Lars Jørgensen
Recent concerns about a possible association between exposure of young women to human papillomavirus (HPV) vaccines and two "dysautonomic syndromes" (a collection of signs and symptoms thought to be caused by autoimmunity) - complex regional pain syndrome (CRPS) and postural orthostatic tachycardia syndrome (POTS) - led the European Medicines Agency (EMA) to review existing evidence. The review was announced by the EMA on July 13, 2015, and was completed on November 4, 2015.
October 17, 2016: Indian Journal of Medical Ethics
https://www.readbyqxmd.com/read/27806982/coupling-between-arterial-and-venous-cerebral-blood-flow-during-postural-change
#13
Shigehiko Ogoh, Takuro Washio, Hiroyuki Sasaki, Lonnie G Petersen, Niels H Secher, Kohei Sato
In supine humans the main drainage from the brain is through the internal jugular vein (IJV), but the vertebral veins (VV) become important during orthostatic stress because the IJV is partially collapsed. To identify the effect of this shift in venous drainage from the brain on the cerebral circulation, this study addressed both arterial and venous flow responses in the "anterior" and "posterior" parts of the brain when nine healthy subjects (5 men) were seated and flow was manipulated by hyperventilation and inhalation of 6% carbon dioxide (CO2)...
December 1, 2016: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/27756060/standing-up-slowly-antagonises-initial-blood-pressure-decrease-in-older-adults-with-orthostatic-hypotension
#14
Eline S de Bruïne, Esmee M Reijnierse, Marijke C Trappenburg, Jantsje H Pasma, Oscar J de Vries, Carel G M Meskers, Andrea B Maier
BACKGROUND: Orthostatic hypotension (OH) is common in older adults and associated with increased morbidity and mortality, loss of independence and high health-care costs. Standing up slowly is a recommended non-pharmacological intervention. However, the effectiveness of this advice has not been well studied. OBJECTIVES: The aim of this study was to investigate whether standing up slowly antagonises posture-related blood pressure (BP) decrease in a clinically relevant population of geriatric outpatients...
October 19, 2016: Gerontology
https://www.readbyqxmd.com/read/27753886/ish-nia-os-01-the-microrna-mir-19a-3p-binds-to-a-polymorphism-in-the-gene-for-the-noradrenaline-transporter-and-may-increase-the-risk-of-cardiovascular-and-psychiatric-disease
#15
Francine Marques, Nina Eikelis, Richard Bayles, Nora Straznicky, Dagmara Hering, Murray Esler, Geoffrey Head, Markus Schlaich, Gavin Lambert
OBJECTIVE: Noradrenaline released from sympathetic nerves is removed from the neuroeffector junction via the action of the noradrenaline transporter (NET). NET impairment is evident in several clinically important conditions including essential hypertension, major depressive disorder, panic disorder and the postural orthostatic tachycardia syndrome. Only in rare instances, however, do coding single nucleotide polymorphisms (SNPs) seem to account for a defect in NET. The aim of this study was to determine whether rs7194256 (C/T), a SNP in the 3' untranslated region (UTR) of the NET gene, is associated with diseases associated with NET dysfunction, and to elucidate the mechanism involved...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27734621/clinical-approach-to-autonomic-dysfunction
#16
R Wells, A Tonkin
Patients with autonomic dysfunction may present with a variety of seemingly unrelated symptoms, both generalised and involving specific systems, including fatigue, difficulty concentrating, orthostatic intolerance, palpitations, constipation or diarrhoea, early satiety, urinary retention or incontinence and erectile dysfunction. Failure to connect the diverse symptoms with a single underlying mechanism may lead to incorrect diagnoses, inappropriate interventions and frustration on the part of both doctors and patients...
October 2016: Internal Medicine Journal
https://www.readbyqxmd.com/read/27729043/orthostatic-intolerance-symptoms-are-associated-with-depression-and-diminished-quality-of-life-in-patients-with-postural-tachycardia-syndrome
#17
Jangsup Moon, Do-Yong Kim, Jung-Ick Byun, Jun-Sang Sunwoo, Jung-Ah Lim, Tae-Joon Kim, Jung-Won Shin, Woo-Jin Lee, Han Sang Lee, Jin-Sun Jun, Kyung-Il Park, Keun-Hwa Jung, Soon-Tae Lee, Ki-Young Jung, Kon Chu, Sang Kun Lee
BACKGROUND: Patients with postural tachycardia syndrome often appear depressive and report diminished quality of life (QOL). In the current study, we first evaluated if the maximal heart rate (HR) increment after standing is associated with the clinical symptoms in patients with excessive orthostatic tachycardia (OT). Next, we investigated the correlations among the symptoms of orthostatic intolerance (OI), depression, and health-related QOL in these patients. Finally we assessed if patients with minimal OI symptoms suffer from depression or diminished QOL...
October 12, 2016: Health and Quality of Life Outcomes
https://www.readbyqxmd.com/read/27728664/postural-orthostatic-tachycardia-syndrome-in-a-case-of-benign-generalised-joint-hypermobilty
#18
V A Arun, Kaur Navjyot, Kumar Sharath V
No abstract text is available yet for this article.
January 2016: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/27727284/orthostatic-hypotension-and-the-long-term-risk-of-dementia-a-population-based-study
#19
Frank J Wolters, Francesco U S Mattace-Raso, Peter J Koudstaal, Albert Hofman, M Arfan Ikram
BACKGROUND: Orthostatic hypotension (OH) is a common cause of transient cerebral hypoperfusion in the population. Cerebral hypoperfusion is widely implicated in cognitive impairment, but whether OH contributes to cognitive decline and dementia is uncertain. We aimed to determine the association between OH and the risk of developing dementia in the general population. METHODS AND FINDINGS: Between 4 October 1989 and 17 June 1993, we assessed OH in non-demented, stroke-free participants of the population-based Rotterdam Study...
October 2016: PLoS Medicine
https://www.readbyqxmd.com/read/27696568/postural-orthostatic-tachycardia-is-not-a-useful-diagnostic-marker-for-chronic-fatigue-syndrome
#20
M E Roerink, J W M Lenders, I C Schmits, A M A Pistorius, J W Smit, H Knoop, J W M van der Meer
BACKGROUND: Postural orthostatic tachycardia syndrome (POTS) is considered a diagnostic marker for chronic fatigue syndrome (CFS). OBJECTIVES: The aims of this study were to (i) compare POTS prevalence in a CFS cohort with fatigued patients not meeting CFS criteria, and (ii) assess activity, impairment and response to cognitive behavioural therapy (CBT) in CFS patients with POTS (POTS-CFS) and without POTS (non-POTS-CFS). METHODS: Prospective cohort study at the Radboud University Medical Centre in the Netherlands...
October 2, 2016: Journal of Internal Medicine
keyword
keyword
26361
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"