scholarly journals Comparative study of cerebral blood flow between postural tachycardia and neurocardiogenic syncope, during head-up tilt test

EP Europace ◽  
2002 ◽  
Vol 4 (4) ◽  
pp. 369-374 ◽  
Author(s):  
A Hermosillo
Keyword(s):  
Blood Flow ◽  
Cerebral Blood Flow ◽  
Comparative Study ◽  
Tilt Test ◽  
Neurocardiogenic Syncope ◽  
Postural Tachycardia ◽  
Head Up Tilt ◽  
Head Up Tilt Test

scholarly journals Cerebrovascular blood flow during the near syncopal phase of head-up tilt test: a comparative study in different types of neurally mediated syncope

EP Europace ◽  
2006 ◽  
Vol 8 (3) ◽  
pp. 199-203 ◽  
Author(s):  
Antonio G. Hermosillo ◽  
José Luis Jordan ◽  
Maite Vallejo ◽  
Andrei Kostine ◽  
Manlio F Márquez ◽  
...  
Keyword(s):  
Blood Flow ◽  
Comparative Study ◽  
Tilt Test ◽  
Neurally Mediated Syncope ◽  
Different Types ◽  
Head Up Tilt ◽  
Head Up Tilt Test

Assessment of therapeutic biomarkers in the treatment of children with postural tachycardia syndrome and vasovagal syncope

2014 ◽  
Vol 24 (5) ◽  
pp. 792-796 ◽  
Author(s):  
Jing Lin ◽  
Hongfang Jin ◽  
Junbao Du
Keyword(s):  
Orthostatic Intolerance ◽  
Vasovagal Syncope ◽  
Urinary Sodium Excretion ◽  
Tilt Test ◽  
Postural Tachycardia Syndrome ◽  
Postural Tachycardia ◽  
Ovid Medline ◽  
Head Up Tilt ◽  
Head Up Tilt Test ◽  
Flow Mediated Vasodilation

AbstractBackground: Postural tachycardia syndrome and vasovagal syncope are common causes of orthostatic intolerance in children. The supplementation with water, or salt, or midodrine, or β-blocker was applied to children with postural tachycardia syndrome or vasovagal syncope. However, the efficacy of such medication varied and was not satisfied. This review aimed to summarise the current biomarkers in the treatment of the diseases. Data sources: Studies were collected from online electronic databases, including OVID Medline, PubMed, ISI Web of Science, and associated references. The main areas assessed in the included studies were clinical improvement, the cure rate, and the individualised treatment for postural tachycardia syndrome and vasovagal syncope in children. Results: Haemodynamic change during head-up tilt test, and detection of 24-hour urinary sodium excretion, flow-mediated vasodilation, erythrocytic H2S, and plasma pro-adrenomedullin as biological markers were the new ways that were inexpensive, non-invasive, and easy to test for finding those who would be suitable for a specific drug and treatment. Conclusion: With the help of biomarkers, the therapeutic efficacy was greatly increased for children with postural tachycardia syndrome and vasovagal syncope.

scholarly journals Head-up tilt test – rational using in diagnosis of syncope

2020 ◽  
Vol 0 (Ahead of Print) ◽  
Author(s):  
Adam Stanczyk
Keyword(s):  
Added Value ◽  
Tilt Test ◽  
Neurocardiogenic Syncope ◽  
Common Causes ◽  
Medical Consultations ◽  
Threatening Condition ◽  
Life Threatening ◽  
Head Up Tilt ◽  
Head Up Tilt Test ◽  
Interdisciplinary Process

Fainting and loss of consciousness (including syncope) are one of the most common causes of medical consultations. A detailed history is of particular importance in their diagnosis. It allows to select a group of patients with a high risk of life-threatening condition and to direct further interdisciplinary process with the participation of a cardiologist, neurologist, psychiatrist and psychologist. The head-up tilt test (HUTT) has a special place in the diagnosis of neurocardiogenic syncope. The main purpose of this review is to highlight the indications for HUTT and indicate situations in which it should be avoided due to the lack of added value of the applied therapy.

scholarly journals Provocation of neurocardiogenic syncope by clomipramine administration during the head-up tilt test in vasovagal syndrome

2000 ◽  
Vol 36 (1) ◽  
pp. 174-178 ◽  
Author(s):  
George N Theodorakis ◽  
Manolis Markianos ◽  
Elias Zarvalis ◽  
Efthimios G Livanis ◽  
Panagiota Flevari ◽  
...  
Keyword(s):  
Tilt Test ◽  
Neurocardiogenic Syncope ◽  
Head Up Tilt ◽  
Head Up Tilt Test

scholarly journals Malignant neurocardiogenic syncope: Efficacy and safety of β-blocking treatment guided by head up tilt test

1996 ◽  
Vol 27 (2) ◽  
pp. 80
Author(s):  
Giuseppe Boriani ◽  
Mauro Biffi ◽  
Paolo Sabbatani ◽  
Lorenzo Frabetti ◽  
Gabriele Bronzetti ◽  
...  
Keyword(s):  
Tilt Test ◽  
Efficacy And Safety ◽  
Neurocardiogenic Syncope ◽  
Head Up Tilt ◽  
Head Up Tilt Test

scholarly journals Comparison of the Active Sitting Test and Head-Up Tilt Test for Diagnosis of Postural Tachycardia Syndrome in Children and Adolescents

2021 ◽  
Vol 9 ◽  
Author(s):  
Hong Cai ◽  
Shuo Wang ◽  
Runmei Zou ◽  
Ping Liu ◽  
Fang Li ◽  
...  
Keyword(s):  
Children And Adolescents ◽  
Tilt Test ◽  
Postural Tachycardia Syndrome ◽  
Postural Change ◽  
Maximum Increase ◽  
Control Subjects ◽  
Postural Tachycardia ◽  
Head Up Tilt ◽  
Head Up Tilt Test ◽  
And Control

Objectives: We aimed to compare the hemodynamic responses to the active sitting test with the passive head-up tilt test (HUTT) in children and adolescents with postural tachycardia syndrome (POTS). We hypothesized that sitting tachycardia was also present in POTS patients during sitting.Materials and methods: We tested 30 POTS patients and 31 control subjects (mean age = 12 years, range = 9–16 years) who underwent both active sitting test and HUTT successively. We measured the heart rate (HR) and blood pressure (BP) during each test.Results: For both POTS patients and control subjects, the HUTT produced significantly larger HR and BP increases from 3 to 10 min of postural change than did the sitting test. Moreover, POTS patients with excessive orthostatic tachycardia during the HUTT also had significantly larger increases in HR at all test intervals during the sitting test than did the control subjects. A maximum increase in HR ≥ 22 bpm within 10 min of the sitting test was likely suggested to predict orthostatic tachycardia, yielding a sensitivity and specificity of 83.3 and 83.9%, respectively. Only six of 30 POTS patients (20%) reached the 40-bpm criterion during the sitting test, and no one complained of sitting intolerance symptoms.Conclusions: We have shown that POTS patients also have sitting tachycardia when changing from a supine position to a sitting position. We believe that the active sitting test is a reasonable alternative maneuver in assessing POTS in population groups that cannot tolerate the standing test or HUTT.

A "Dysautonomic" Head-Up Tilt Test Pattern in Elderly Patients with Neurocardiogenic Syncope

1999 ◽  
Vol 22 (7) ◽  
pp. 1004-1012 ◽  
Author(s):  
LIONEL BECK ◽  
MAXIME PONS ◽  
CHRISTOPHE PIOT ◽  
FLORENCE LECLERCQ ◽  
PATRICK MESSNER-PELLENC ◽  
...  
Keyword(s):  
Elderly Patients ◽  
Test Pattern ◽  
Tilt Test ◽  
Neurocardiogenic Syncope ◽  
Head Up Tilt ◽  
Head Up Tilt Test

P2543QTc interval during head-up tilt testing in patients with neurocardiogenic syncope versus patients with orthostatic hypotensio

2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
G Vanerio
Keyword(s):  
Orthostatic Hypotension ◽  
Autonomic Failure ◽  
Normal Subjects ◽  
Tilt Test ◽  
Qtc Interval ◽  
Neurocardiogenic Syncope ◽  
Dynamic Changes ◽  
Tilt Testing ◽  
Head Up Tilt ◽  
Head Up Tilt Test

Abstract Background The QT interval reflects shifting from parasympathetic to sympathetic activity. During head-up tilt testing (HUTT) normal subjects show a QTc shortening, but during an abnormal response: 1) neurocardiogenic syncope or 2) orthostatic hypotension an altered balance between the parasympathetic to sympathetic is present and probably detected through changes in the QTc interval. Objective Compare dynamic changes of the QT, QTc intervals during head-up tilt test (HUTT) in patients with neurocardiogenic syncope (NCS) and with orthostatic hypotension due to autonomic failure (OH) Methods We studied 78 patients. 45 (51%) were female. All were symptomatic and had an abnormal HUTT according to each definition. We divided the population into two groups depending on the response, 1) NCS n=61 2) OH n=17. In all patients; heart rate, QT and QTc, were measured on a continuous 12-lead electrocardiogram Results NCS patients were significantly younger with female prevalence. The max HR and the SD of the HR were significantly higher. The QTc interval during positive HUTT was very different. In the NCS the QTc shortened from 407±25 to 367±49 (p=0.001) and in OH group the QTc prolonged from baseline 427±37 ms to HUTT 442±52 ms; p=0.001). Conclusion HUTT revealed significant QTc differences in patients with OH and NCS. Patients with a NCS the QTc interval shortened; but in those with OH the QTc significantly prolonged. This finding is in accordance with the autonomic imbalance and could explain the increase in sudden death observed in the OH population.

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