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Postural orthostatic tachycardia syndrome

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https://www.readbyqxmd.com/read/29222896/serum-vitamin-b-12-in-children-presenting-with-vasovagal-syncope
#1
Ayhan Pektas, Resit Koken, Halit Bugra Koca
BACKGROUND AND OBJECTIVES: The present study aims to determine the serum vitamin B-12 in children presenting with vasovagal syncope. METHODS AND STUDY DESIGN: This is a prospective review of 160 children presenting with vasovagal syncope. Subgroup analysis was done based on the results of head up tilt test. RESULTS: Head up tilt test gave positive results in 80 children and yielded negative results in the remaining 80 children. The tilt test positive children had significantly lower thyroid stimulating hormone concentrations (p=0...
2018: Asia Pacific Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/29222399/pediatric-disorders-of-orthostatic-intolerance
#2
REVIEW
Julian M Stewart, Jeffrey R Boris, Gisela Chelimsky, Phillip R Fischer, John E Fortunato, Blair P Grubb, Geoffrey L Heyer, Imad T Jarjour, Marvin S Medow, Mohammed T Numan, Paolo T Pianosi, Wolfgang Singer, Sally Tarbell, Thomas C Chelimsky
Orthostatic intolerance (OI), having difficulty tolerating an upright posture because of symptoms or signs that abate when returned to supine, is common in pediatrics. For example, ∼40% of people faint during their lives, half of whom faint during adolescence, and the peak age for first faint is 15 years. Because of this, we describe the most common forms of OI in pediatrics and distinguish between chronic and acute OI. These common forms of OI include initial orthostatic hypotension (which is a frequently seen benign condition in youngsters), true orthostatic hypotension (both neurogenic and nonneurogenic), vasovagal syncope, and postural tachycardia syndrome...
December 8, 2017: Pediatrics
https://www.readbyqxmd.com/read/29210841/comparison-of-heart-rate-variability-parameters-to-the-autonomic-reflex-screen-in-postural-orthostatic-tachycardia-syndrome-and-neurogenic-orthostatic-hypotension
#3
Jacquie Baker, Juan M Racosta, Kurt Kimpinski
PURPOSE: The clinical significance of heart rate variability (HRV) in the context of autonomic dysfunction continues to be a matter of debate. Therefore, the purpose of the current study was to investigate the clinical relevance of HRV in the context of autonomic dysfunction. METHODS: Heart rate variability data from 225 volunteers consisting of controls (n = 166) and patients with mild (n = 25) and severe (n = 34) autonomic dysfunction were retrospectively analyzed...
November 23, 2017: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
https://www.readbyqxmd.com/read/29111543/syncope-in-young-women-broadening-the-differential-diagnosis
#4
Nachiket Patel, Naila Choudhary, Christine Tompkins, Khawaja Afzal Ammar, A Jamil Tajik, Krishnaswamy Chandrasekaran, Timothy E Paterick
Syncope is defined as a sudden transient loss of consciousness (TLOC) with concomitant loss of postural tone followed by spontaneous recovery. It is a subset of a broader class of medical conditions, including postural orthostatic tachycardia syndrome (POTS), orthostatic hypotension, and neurally mediated syncope (NMS), that may result in TLOC. The overlap of these clinical conditions leads to confusion regarding syncope classification that can hinder evaluation strategies, and pose challenges for diagnosis and treatment, particularly in young women...
2017: Reviews in Cardiovascular Medicine
https://www.readbyqxmd.com/read/29102451/autonomic-dysfunction-in-cardiology-pathophysiology-investigation-and-management
#5
REVIEW
Amy C Arnold, Jessica Ng, Lucy Lei, Satish R Raj
Presyncope and syncope are common medical findings, with a > 40% estimated lifetime prevalence. These conditions are often elicited by postural stress and can be recurrent and accompanied by debilitating symptoms of cerebral hypoperfusion. Therefore, it is critical for physicians to become familiar with the diagnosis and treatment of common underlying causes of presyncope and syncope. In some patients, altered postural hemodynamic responses result from a failure of compensatory autonomic nervous system reflex mechanisms...
September 14, 2017: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/29061232/reports-of-postural-orthostatic-tachycardia-syndrome-after-human-papillomavirus-vaccination-in-the-vaccine-adverse-event-reporting-system
#6
Jorge Arana, Adamma Mba-Jonas, Christopher Jankosky, Paige Lewis, Pedro L Moro, Tom T Shimabukuro, Maria Cano
PURPOSE: Human papillomavirus (HPV) vaccination prevents infections with HPV strains that cause certain cancers. Reports of postural orthostatic tachycardia syndrome (POTS) following HPV vaccination have raised safety concerns. We reviewed POTS reports submitted to the Vaccine Adverse Event Reporting System (VAERS). METHODS: We searched the VAERS database for reports of POTS following any type of HPV vaccination (bivalent, quadrivalent, or nonavalent) from June 2006 to August 2015...
November 2017: Journal of Adolescent Health: Official Publication of the Society for Adolescent Medicine
https://www.readbyqxmd.com/read/29045956/-co-morbidity-of-vasovagal-syncope-and-postural-tachycardia-syndrome-with-allergic-diseases-in-children
#7
Y Liao, Q Y Zhang, H X Li, Y L Wang, P Liu, J B DU
OBJECTIVE: To explore the clinical characteristics of the co-morbidity of vasovagal syncope (VVS) and postural tachycardia syndrome (POTS) with allergic diseases in children. METHODS: A re-trospective analysis was launched to summarize the clinical data of children with VVS and POTS. They were divided into allergic group and non-allergic group according to the history of allergic diseases. The participants' clinical characteristics were compared between allergic group and non-allergic group using independent sample t test or rank sum test; composition comparisons were completed by Chi-square test...
October 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/29045952/-progress-in-diagnosis-and-management-of-syncope-in-children
#8
W R Xu, Y Liao, H F Jin, Q Y Zhang, C S Tang, J B DU
Syncope is a common emergency of children and adolescents, which has serious influence on the quality of life. Neurally-mediated syncope, including postural tachycardia syndrome, vasovagal syncope, orthostatic hypotension and orthostatic hypertension, is the main cause of syncope in children and adolescents. The main manifestations of neurally-mediated syncope are diverse, such as dizziness, headache, chest tightness, chest pain, pale complexion, fatigue, pre-syncope and syncope. Although the clinical manifestations are similar, each subtype of syncope has its hemodynamic feature and optimal treatment option...
October 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/29027608/ivabradine-in-postural-orthostatic-tachycardia-syndrome-preliminary-experience-in-children
#9
Grazia Delle Donne, Ferran Rosés Noguer, Jan Till, Tushar Salukhe, Sanjay K Prasad, Piers E F Daubeney
OBJECTIVE: Ivabradine is a selective and specific inhibitor of the I(f) current in the sinoatrial and atrioventricular nodes. It decreases heart rate and myocardial oxygen consumption at rest and during exercise. It is used in adults for management of heart failure and angina, but promising results have been obtained in postural orthostatic tachycardia syndrome (POTS). There is little experience of ivabradine in childhood, although it is used on a compassionate basis. Our aim was to review our experience of ivabradine in a retrospective evaluation of pediatric patients with POTS...
October 13, 2017: American Journal of Cardiovascular Drugs: Drugs, Devices, and Other Interventions
https://www.readbyqxmd.com/read/28986003/postural-tachycardia-in-hypermobile-ehlers-danlos-syndrome-a-distinct-subtype
#10
Mitchell G Miglis, Brittany Schultz, Srikanth Muppidi
INTRODUCTION: It is not clear if patients with postural tachycardia syndrome (POTS) and Ehlers-Danlos syndrome (hEDS) differ from patients with POTS due to other etiologies. We compared the results of autonomic testing and healthcare utilization in POTS patients with and without hEDS. METHODS: Patients with POTS+hEDS (n=20) and POTS controls without hypermobility (n=20) were included in the study. All patients underwent autonomic testing, and the electronic medical records were reviewed to determine the number and types of medications patients were taking, as well as the number of outpatient, emergency department, and inpatient visits over the prior year...
October 2, 2017: Autonomic Neuroscience: Basic & Clinical
https://www.readbyqxmd.com/read/28976015/periodic-facial-erythema-in-a-patient-with-postural-orthostatic-tachycardia-syndrome
#11
S Khan, A Affleck
No abstract text is available yet for this article.
October 4, 2017: Clinical and Experimental Dermatology
https://www.readbyqxmd.com/read/28800865/anaphylaxis
#12
REVIEW
Daniel LoVerde, Onyinye I Iweala, Ariana Eginli, Guha Krishnaswamy
Anaphylaxis is a systemic, life-threatening disorder triggered by mediators released by mast cells and basophils activated via allergic (IgE-mediated) or nonallergic (non-IgE-mediated) mechanisms. It is a rapidly evolving, multisystem process involving the integumentary, pulmonary, gastrointestinal, and cardiovascular systems. Anaphylaxis and angioedema are serious disorders that can lead to fatal airway obstruction and culminate in cardiorespiratory arrest, resulting in hypoxemia and/or shock. Often, these disorders can be appropriately managed in an outpatient setting; however, these conditions can be severe enough to warrant evaluation of the patient in the ED and in some cases, hospitalization, and management in an ICU...
August 8, 2017: Chest
https://www.readbyqxmd.com/read/28779863/neurological-complications-of-cardiac-disease
#13
Nandini Madan, Karen S Carvalho
This article focuses on the complex interactions between the cardiovascular and neurologic systems. Initially, we focus on neurological complications in children with congenital heart disease both secondary to the underlying cardiac disease and complications of interventions. We later discuss diagnosis and management of common syncope syndromes with emphasis on vasovagal syncope. We also review the diagnosis, classification, and management of children and adolescents with postural orthostatic tachycardia syndrome...
February 2017: Seminars in Pediatric Neurology
https://www.readbyqxmd.com/read/28769598/unexplored-relationship-of-sleep-disturbances-linked-to-suicidal-ideation-and-behavior-in-postural-orthostatic-tachycardia-syndrome
#14
COMMENT
Muhammad Nabeel Shafqat, Muhammad Aadil, Maria Shoaib
No abstract text is available yet for this article.
2017: Nature and Science of Sleep
https://www.readbyqxmd.com/read/28738696/the-role-of-autoantibodies-in-the-syndromes-of-orthostatic-intolerance-a-systematic-review
#15
REVIEW
Mohammed Ruzieh, Lillian Batizy, Osama Dasa, Carson Oostra, Blair Grubb
Orthostatic intolerance is defined as the provocation of symptoms upon standing, commonly caused by neurogenic orthostatic hypotension (OH) and postural tachycardia syndrome (POTS), the etiology for which has not been fully uncovered yet. Many reports have described the occurrence of dysautonomia, orthostatic intolerance and POTS following febrile illness, presumably viral and post-vaccine. Furthermore, patients with dysautonomia have higher rates of autoimmune disorders such as Hashimoto thyroiditis and SLE...
October 2017: Scandinavian Cardiovascular Journal: SCJ
https://www.readbyqxmd.com/read/28720881/patients-with-orthostatic-intolerance-relationship-to-autonomic-function-tests-results-and-reproducibility-of-symptoms-on-tilt
#16
Hyung Lee, Phillip A Low, Hyun Ah Kim
This study was designed to investigate the frequency and pattern of orthostatic symptoms during head-up tilt (HUT) in patients with orthostatic intolerance during daily life, and to identify the relationship between the orthostatic symptoms during HUT and autonomic parameters. We prospectively collected autonomic data from 464 patients with orthostatic symptoms. Adrenergic and cardiovagal function tests including HUT were performed. Based on HUT results, we divided patients into orthostatic hypotension (OH), postural tachycardia syndrome (POTS), or normal HUT groups...
July 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28720463/incidence-rates-of-guillain-barr%C3%A3-gbs-chronic-fatigue-systemic-exertion-intolerance-disease-cfs-seid-and-postural-orthostatic-tachycardia-syndrome-pots-prior-to-introduction-of-human-papilloma-virus-hpv-vaccination-among-adolescent-girls-in-finland-2002-2012
#17
J Skufca, J Ollgren, E Ruokokoski, O Lyytikäinen, H Nohynek
BACKGROUND: In Finland a vaccination programme against human papillomavirus (HPV) was introduced in November 2013 for girls aged 11-12 years with a catchup for girls 13-15 years. Allegations that HPV vaccine is causing Guillain Barré syndrome (GBS) and non-specific diagnostic entities, such as chronic fatigue syndrome/systemic exertion intolerance disease (CFS/SEID) and postural orthostatic tachycardia syndrome (POTS), continue to surface. We examined population register-based incidence rates of CFS/SEID, GBS and POTS to provide baseline data for future HPV vaccine safety evaluations...
June 2017: Papillomavirus Research
https://www.readbyqxmd.com/read/28702717/mindfulness-based-stress-reduction-and-group-support-decrease-stress-in-adolescents-with-cardiac-diagnoses-a-randomized-two-group-study
#18
Vicki A Freedenberg, Pamela S Hinds, Erika Friedmann
Adolescents with cardiac diagnoses face unique challenges that can cause psychosocial distress. This study compares a Mindfulness-Based Stress Reduction (MBSR) program to a video online support group for adolescents with cardiac diagnoses. MBSR is a structured psycho-educational program which includes yoga, meditation, cognitive restructuring, and group support. A published feasibility study by our group showed significant reduction in anxiety following this intervention. Participants were randomized to MBSR or video online support group, and completed measures of anxiety, depression, illness-related stress, and coping pre- and post-6-session interventions...
July 12, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28689455/human-papillomavirus-vaccine-and-postural-orthostatic-tachycardia-syndrome-a-review-of-current-literature
#19
Breann N Butts, Philip R Fischer, Kenneth J Mack
The human papillomavirus (HPV) vaccine is efficacious in preventing complications of human papillomavirus infection including cervical cancer. However, there have been case reports of adverse events occurring after vaccination, one being postural orthostatic tachycardia syndrome (POTS). This article reviews published data and other available information regarding the relationship between the human papillomavirus vaccine and POTS. Background information is provided regarding the human papillomavirus vaccine and the proposed post-vaccination adverse event POTS...
January 1, 2017: Journal of Child Neurology
https://www.readbyqxmd.com/read/28674628/syndromes-of-orthostatic-intolerance-and-syncope-in-young-adults
#20
Viktor Hamrefors, Jasmina Medic Spahic, David Nilsson, Martin Senneby, Richard Sutton, Olle Melander, Artur Fedorowski
OBJECTIVE: To explore the clinical and neuroendocrine characteristics of syndromes of orthostatic intolerance and syncope in young adults. METHODS: Two hundred and thirty-six patients aged 18-40 years with orthostatic intolerance and/or syncope were examined by head-up tilt test (HUT). Plasma levels of epinephrine, norepinephrine, renin, C-terminal-pro-arginine-vasopressin (CT-proAVP), C-terminal-endothelin-1 and mid-regional-fragment of pro-atrial-natriuretic-peptide (MR-proANP) were analysed...
2017: Open Heart
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