نتایج جستجو برای: tilt table test

تعداد نتایج: 921924  

Journal: :Vision Research 2012
J. Edwin Dickinson Hayley K. Mighall Renita A. Almeida Jason Bell David R. Badcock

Visual adaptation results in aftereffects that exaggerate the difference between successively experienced stimuli. In the tilt aftereffect (TAE), for example, the perceived orientation of a test line is repelled from the orientation of an adapting line. This principle also applies to more complex stimuli. Adaptation to faces can displace the next face viewed along axes such as identity, gender,...

2005
C. Alston T. Chiffings E. Abal B. Hart K. Mengersen

Bayesian Belief Networks (BBNs) are emerging as valuable tools for investigating complex ecological problems. In a BBN, the important variables in a problem are identified and causal relationships are represented graphically. Underpinning this is the probabilistic framework in which variables can take on a finite range of mutually exclusive states. Associated with each variable is a conditional...

Journal: :Age and ageing 2010
Gordon W Duncan Maw Pin Tan Julia L Newton Pamela Reeve Steve W Parry

BACKGROUND vasovagal syncope (VVS) has been diagnosed with increasing frequency in older people since the description of the head-up tilt table test (HUTT). There is, however, a paucity of research describing the clinical features of VVS in this group. To address this issue, we investigated the age distribution and differences in clinical characteristics associated with age in patients diagnose...

2014
James Frith

Clin. Pract. (2014) 11(3), 265–268 ISSN 2044-9038 part of Syncope is very common, with the overall incidence for first syncope being 6.2 per 1000 patient years, increasing to 20 in females aged over 80 years [1]. Vasovagal syncope (VVS) is by far the most common cause, explaining over 20% of cases, with an underlying cardiac cause in 10% of cases and up to 37% of cases remaining unexplained [1]...

2017
Rafael Peinado Peinado

Rev Esp Cardiol 2004;57(7):613-6 613 Syncope is defined as a transient loss of consciousness associated with a loss of postural tone, in which the patient recovers spontaneously without the need for electrical or pharmacological cardioversion.1,2 This symptom may have one of several causes, some of them completely benign and self-limiting, others potentially fatal. Diagnosis is primarily made o...

Journal: :British journal of industrial medicine 1983
A D McDonald J S Fry A J Woolley J McDonald

Three parallel cohort studies of asbestos factory workers were undertaken to investigate the effects of mineral fibre type and industrial process on malignant mesothelioma, respiratory cancer, and asbestosis. This report describes the mortality of a cohort of 2543 men, defined as all those employed for at least a month from 1938 to 1958 in a textile plant in South Carolina in which chrysotile w...

Journal: :Gut 1989
S Shivananda M L Hordijk A S Pena J F Mayberry

Two hundred and ten patients with Crohn's disease (CD) were identified in an epidemiological survey of inflammatory bowel disease in the Leiden Health Care Region of the Netherlands. The survey included all patients with CD seen between 1979-1983. The duration of disease ranged from less than one year to 48 years. Of the 210 patients with CD, 118 (56%) underwent surgical resection. Sixty one ha...

2013
Tae-Eon Huh Jung Sook Yeom Young-Soo Kim Hyang-Ok Woo Ji Sook Park Eun Sil Park Ji-Hyun Seo Jae-Young Lim Chan-Hoo Park Ki-Jong Park Hee-Shang Youn

PURPOSE Chronic day-to-day symptoms of orthostatic intolerance are the most notable features of postural orthostatic tachycardia syndrome (POTS). However, we have encountered patients with such symptoms and excessive tachycardia but with no symptoms during the tilt-table test (TTT). We aimed to investigate whether POTS patients with chronic orthostatic intolerance always present orthostatic sym...

Journal: :BMC Dermatology 2008
Jürgen Tacke Jens Dietrich Beatrix Steinebrunner Antonius Reifferscheid

BACKGROUND Sun sensitivity of the skin is a risk factor for the development of cutaneous melanoma and other skin cancers. Epidemiological studies on causal factors for the development of melanoma must control for sun sensitivity as a confounder. A standardized instrument for measuring sun sensitivity has not been established yet. It is assumed that many studies show a high potential of residual...

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