Cerebral Perfusion Monitoring Using Near-Infrared Spectroscopy During Head-Up Tilt Table Test in Patients With Orthostatic Intolerance
نویسندگان
چکیده
منابع مشابه
Cerebral blood flow during supine rest and the first minute of head-up tilt in patients with orthostatic intolerance.
AIM To assess the cerebral blood flow velocity during the first minute of head-up tilt in patients with postural tachycardia syndrome (POTS) or neurally-mediated reflex syncope compared with patients with dizziness. METHODS We evaluated 120 patients selected from 470 patients who underwent head-up tilt testing: 40 with POTS, 40 with typical neurally-mediated reflex syncope and 40 who complain...
متن کاملCerebral Perfusion in Subjects with Orthostatic Intolerance
INTRODUCTION Orthostatic intolerance is characterized by symptoms of lightheadedness, tiredness, palpitations, blurred vision and occasionally, by loss of consciousness during standing, which are relieved upon recumbency. These symptoms are suggestive of cerebral hypoperfusion, yet they occur in the absence of orthostatic hypotension. We therefore evaluated cerebral vasoregulation in patients w...
متن کاملThe fainting patient: value of the head-upright tilt-table test in adult patients with orthostatic intolerance.
The head-upright tilt-table (HUT) test is used primarily for the investigation of orthostatic symptoms. Although this test is frequently the gold standard for the evaluation of neurocardiogenic syncope, dysautonomia and postural orthostatic tachycardia syndrome, there is a debate over its diagnostic value and method. The authors review the physiologic basis of the HUT test, the method, patterns...
متن کاملShort duration head-up tilt test: a comparison with conventional long protocol in patients of orthostatic intolerance.
BACKGROUND Orthostatic intolerance is development of symptoms during upright standing relieved by recumbency. An individual's predisposition to orthostatic intolerance (development of symptoms during upright posture) can be identified by Head-up Tilt Test (HUT). The aim of the present study was to compare the diagnostic yield (Percentage of patients tested positive) of short duration with conve...
متن کاملNear-infrared spectroscopy for monitoring cerebral ischemia during selective cerebral perfusion.
OBJECTIVE To minimize the neurological complications following cardiovascular surgery, it is essential to prevent an occurrence of cerebrovascular embolism and to detect and solve cerebral malperfusion without delay in the operating theater. Although we have introduced near-infrared spectroscopy (NIRS) monitoring for the purpose of detecting cerebral malperfusion, no criterion has been availabl...
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ژورنال
عنوان ژورنال: Frontiers in Human Neuroscience
سال: 2019
ISSN: 1662-5161
DOI: 10.3389/fnhum.2019.00055