Duration of head-up tilt test for patients with suspected vasovagal syncope

Background: Electrocardiography (ECG) and the head-up tilt test (HUTT) are vital in clinical work-up in children with vasovagal syncope (VVS). Ventricular repolarization parameters (QT) measured during the HUTT can be indicative of electrical instability; however, these parameters are not frequently assessed. This study aimed to investigate if ventricular repolarization parameters measured during the HUTT could be indicative of future ventricular arrhythmias in children with syncope. Methods: The shape and amplitude of the T-wave and parameters of the repolarization period (QT, QTpeak, Tpeak-Tend) were evaluated in a resting ECG performed on the first day of hospitalization and in ECGs performed during three phases of the HUTT. Results: In the after-tilt phase of the HUTT, 19/30 children displayed a change in T-wave morphology. QTc was significantly longer in VVS I compared to that in VVS II patients, but not in the controls (p = 0.092). Conclusions: We need further follow-up studies to establish the clinical importance of abnormal dynamics of the repolarization period in children with VVS and negative HUTT. Therefore, children with abnormal T-wave refraction and prolonged duration of the TpTe should remain under the care of a cardiological outpatient.

Download Full-text

A13-4 The influence of head-up tilt test on plasma adrenomedullin concentration in patients with cardiodepressive vasovagal syncope

EP Europace ◽

10.1016/s1099-5129(03)91576-5 ◽

2003 ◽

Vol 4 ◽

pp. B20

Author(s):

J GAJEK

Keyword(s):

Vasovagal Syncope ◽

Tilt Test ◽

Head Up Tilt ◽

Head Up Tilt Test

Download Full-text

Differentiating between patients with vasovagal syncope using the analysis of heart rate variability during head-up tilt test

2013 1st International Conference on Communications, Signal Processing, and their Applications (ICCSPA) ◽

10.1109/iccspa.2013.6487260 ◽

2013 ◽

Cited By ~ 1

Author(s):

N. Khodor ◽

H. Amoud ◽

M. Khalil ◽

N. Khodor ◽

D. Matelot ◽

...

Keyword(s):

Heart Rate ◽

Heart Rate Variability ◽

Vasovagal Syncope ◽

Tilt Test ◽

Head Up Tilt ◽

Head Up Tilt Test

Download Full-text

PW032 Evaluation of menstrual cycle influence on the results of head-up tilt test in women with suspected vasovagal syncope

Global Heart ◽

10.1016/j.gheart.2014.03.2190 ◽

2014 ◽

Vol 9 (1) ◽

pp. e269-e270

Author(s):

Artur Z. Pietrucha ◽

Joanna Jedrzejczyk-Spaho ◽

Irena B. Bzukala ◽

Danuta Mroczek-Czernecka ◽

Mateusz Wnuk ◽

...

Keyword(s):

Menstrual Cycle ◽

Vasovagal Syncope ◽

Tilt Test ◽

Head Up Tilt ◽

Head Up Tilt Test

Download Full-text

Excessive myocardial contraction in vasovagal syncope demonstrated by echocardiography during head-up tilt test

Clinical Cardiology ◽

10.1002/clc.4960190212 ◽

1996 ◽

Vol 19 (2) ◽

pp. 137-140 ◽

Cited By ~ 20

Author(s):

Tsung-Ming Lee ◽

Ming-Fong Chen ◽

Chia-Lun Chao ◽

Chiau-Suong Liau ◽

Yuan-Teh Lee ◽

...

Keyword(s):

Vasovagal Syncope ◽

Myocardial Contraction ◽

Tilt Test ◽

Head Up Tilt ◽

Head Up Tilt Test

Download Full-text

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

Cardiology in the Young ◽

10.1017/s1047951114000316 ◽

2014 ◽

Vol 24 (5) ◽

pp. 792-796 ◽

Cited By ~ 9

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.

Download Full-text