scholarly journals Mechanisms of tilt‐induced vasovagal syncope in healthy volunteers and postural tachycardia syndrome patients without past history of syncope

2019 ◽  
Vol 7 (13) ◽  
Author(s):  
Julian M. Stewart ◽  
Mohamed A. Shaban ◽  
Tyler Fialkoff ◽  
Brianna Tuma‐Marcella ◽  
Paul Visintainer ◽  
...  
Keyword(s):  
Healthy Volunteers ◽  
Past History ◽  
Vasovagal Syncope ◽  
Postural Tachycardia Syndrome ◽  
Postural Tachycardia ◽  
History Of

scholarly journals Comparison of cortisol levels in patients with vasovagal syncope and postural tachycardia syndrome

2021 ◽  
Vol 38 (1) ◽  
Author(s):  
Humaira Fayyaz ◽  
Shazadi Ambreen ◽  
Hammad Raziq ◽  
Azmat Hayyat
Keyword(s):  
Vasovagal Syncope ◽  
Serum Cortisol ◽  
Tilt Test ◽  
Control Group ◽  
Postural Tachycardia Syndrome ◽  
P Value ◽  
Cross Sectional ◽  
Postural Tachycardia ◽  
Significant Difference ◽  
Cortisol Levels

Objectives: To compare the levels of cortisol in patients of vasovagal syncope (VVS) and postural tachycardia syndrome (POTS). Methods: A cross-sectional analytical study was conducted at Islamic International Medical College, Rawalpindi and Electrophysiology Department at (AFIC). This study included 80 subjects, comprising of 35 patients in each group of vasovagal syncope and postural tachycardia syndrome and 10 healthy subjects. Patients with complaint of syncope was evaluated for vasovagal syncope and postural tachycardia syndrome using Head Up Tilt Test (HUTT). Blood samples of all the participants were taken and serum cortisol was analyzed using ELISA method. Results were analyzed on SPSS Statistics 21 using ANOVA with a p-value of ≤0.05 regarded as significant. Results: Hormonal analysis shows that cortisol levels in the vasovagal, postural tachycardia syndrome and in control group was 153±16.7pg/ml, 160.17±pg/ml, and 69.65±5.8pg/ml respectively. Cortisol levels were significantly higher in both vasovagal and POTS groups as compared to controls with a p-value of 0.04 and 0.023 respectively. However, there was no significant difference between vasovagal and POTS patients with p value 0.570. Conclusion: It is concluded from the study that cortisol responses of VVS and POTS were positive. doi: https://doi.org/10.12669/pjms.38.1.4122 How to cite this:Khan HF, Ambreen S, Raziq H, Hayat A. Comparison of cortisol levels in patients with vasovagal syncope and postural tachycardia syndrome. Pak J Med Sci. 2022;38(1):---------. doi: https://doi.org/10.12669/pjms.38.1.4122 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

scholarly journals Differentiating Between Postural Tachycardia Syndrome and Vasovagal Syncope

PEDIATRICS ◽  
2017 ◽  
Vol 139 (4) ◽  
pp. e20164161 ◽  
Author(s):  
Jeffrey B. Anderson ◽  
Martha W. Willis
Keyword(s):  
Vasovagal Syncope ◽  
Postural Tachycardia Syndrome ◽  
Postural Tachycardia

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 Management of Postural Tachycardia Syndrome, Inappropriate Sinus Tachycardia and Vasovagal Syncope

2016 ◽  
Vol 5 (2) ◽  
pp. 122 ◽  
Author(s):  
Satish Raj ◽  
Robert Sheldon ◽  
◽  
Keyword(s):  
Sinus Tachycardia ◽  
Consensus Statement ◽  
Vasovagal Syncope ◽  
Heart Rhythm ◽  
Diagnosis And Treatment ◽  
Postural Tachycardia Syndrome ◽  
Significant Morbidity ◽  
Inappropriate Sinus Tachycardia ◽  
Postural Tachycardia ◽  
Clinical Syndromes

Postural tachycardia syndrome (POTS), inappropriate sinus tachycardia (IST) and vasovagal syncope (VVS) are relatively common clinical syndromes that are seen by physicians in several disciplines. They are often not well recognised and are poorly understood by physicians, are associated with significant morbidity and cause significant frustration for both patients and their physicians. The2015 Heart Rhythm Society Expert Consensus Statement on the Diagnosis and Treatment of Postural Tachycardia Syndrome, Inappropriate Sinus Tachycardia and Vasovagal Syncopeprovides physicians with an introduction to these disorders and initial recommendations on their investigation and treatment. Here we summarise the consensus statement to help physicians in the management of patients with these frequently distressing problems

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