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Vasovagal syncope

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https://www.readbyqxmd.com/read/28429690/-our-experience-in-the-diagnosis-and-treatment-of-postural-orthostatic-tachycardia-syndrome-vasovagal-syncope-and-inappropriate-sinus-tachycardia-in-children
#1
Sezen Ugan Atik, Reyhan Dedeoğlu, Aida Koka, Funda Öztunç
OBJECTIVES: The aim of this study was to share our experience in the diagnosis and treatment of patients who presented at our clinic with syncope, pre-syncope, dizziness, and palpitations. STUDY DESIGN: Patients who were treated at pediatric cardiology clinic for complaints of syncope, dizziness, and palpitations between 2014 and 2016 were enrolled in the study. Detailed history of the patients, physical examination findings, laboratory and electrocardiogram results were recorded...
April 2017: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/28422288/general-dentists-awareness-of-how-to-cope-with-medical-emergencies-in-paediatric-dental-patients
#2
Ivana Čuković-Bagić, Sandra Hrvatin, Jesenka Jeličić, Dubravka Negovetić Vranić, Mirjana Kujundžić Tiljak, Hrvoje Pezo, Luc Marks
BACKGROUND: General dentists (GDs) should be aware of the symptoms, signs, diagnoses and treatment of medical emergencies in paediatric patients. AIM: To evaluate the knowledge of GDs in coping with medical emergencies, and to identify whether they are confident to diagnose and treat medical emergencies in paediatric patients. DESIGN: The questionnaire was conducted immediately before the beginning of national dental meetings and continuing education seminars in Croatia, attended by the GDs, in order to obtain a representative sample...
April 19, 2017: International Dental Journal
https://www.readbyqxmd.com/read/28407148/effects-of-closed-loop-stimulation-vs-ddd-pacing-on-haemodynamic-variations-and-occurrence-of-syncope-induced-by-head-up-tilt-test-in-older-patients-with-refrac-tory-cardioinhibitory-vasovagal-syncope-the-tilt-test-induced-response-in-closed-loop-stimulation
#3
Pietro Palmisano, Gabriele Dell'Era, Vincenzo Russo, Maria Zaccaria, Rolando Mangia, Miriam Bortnik, Federica De Vecchi, Ailia Giubertoni, Fabiana Patti, Andrea Magnani, Gerardo Nigro, Anna Rago, Eraldo Occhetta, Michele Accogli
Aims: Closed-loop stimulation (CLS) seemed promising in preventing the recurrence of vasovagal syncope (VVS) in patients with a cardioinhibitory response to head-up tilt test (HUTT) compared with conventional pacing. We hypothesized that the better results of this algorithm are due to its quick reaction in high-rate pacing delivered in the early phase of vasovagal reflex, which increase the cardiac output and the blood pressure preventing loss of consciousness. Methods and results: This prospective, randomized, single-blind, multicentre study was designed as an intra-patient comparison and enrolled 30 patients (age 62...
April 12, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28403704/nursing-management-of-reflex-anoxic-seizures-in-children
#4
Neal Patel, Rowan Kerr-Liddell, Louise Challis, Siba Prosad Paul
Children who present with transient loss of consciousness (T-LOC) are often first seen in emergency departments (EDs). Reflex anoxic seizure (RAS), vasovagal syncope and prolonged respiratory apnoea are benign, syncopal events that can be generally managed by explanation and reassurance. RAS is a short, paroxysmal, self-reverting episode of asystole that is triggered by pain, fear or anxiety and is caused by increased vagal response. It is an important differential diagnosis in pre-school age children who present with T-LOC, but is often underdiagnosed and can sometimes be misdiagnosed as epilepsy...
April 13, 2017: Emergency Nurse: the Journal of the RCN Accident and Emergency Nursing Association
https://www.readbyqxmd.com/read/28360882/vestibular-activation-habituates-the-vasovagal-response-in-the-rat
#5
Bernard Cohen, Giorgio P Martinelli, Yongqing Xiang, Theodore Raphan, Sergei B Yakushin
Vasovagal syncope is a significant medical problem without effective therapy, postulated to be related to a collapse of baroreflex function. While some studies have shown that repeated static tilts can block vasovagal syncope, this was not found in other studies. Using anesthetized, male Long-Evans rats that were highly susceptible to generation of vasovagal responses, we found that repeated activation of the vestibulosympathetic reflex (VSR) with ±2 and ±3 mA, 0.025 Hz sinusoidal galvanic vestibular stimulation (sGVS) caused incremental changes in blood pressure (BP) and heart rate (HR) that blocked further generation of vasovagal responses...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28351847/differentiating-between-postural-tachycardia-syndrome-and-vasovagal-syncope
#6
Jeffrey B Anderson, Martha W Willis
No abstract text is available yet for this article.
March 28, 2017: Pediatrics
https://www.readbyqxmd.com/read/28351846/postural-heart-rate-changes-in-young-patients-with-vasovagal-syncope
#7
Marvin S Medow, Sana Merchant, Melissa Suggs, Courtney Terilli, Breige O'Donnell-Smith, Julian M Stewart
BACKGROUND AND OBJECTIVES: Recurrent postural vasovagal syncope (VVS) is caused by transient cerebral hypoperfusion from episodic hypotension and bradycardia; diagnosis is made by medical history. VVS contrasts with postural tachycardia syndrome (POTS), defined by chronic daily symptoms of orthostatic intolerance with excessive upright tachycardia without hypotension. POTS has recently been conflated with VVS when excessive tachycardia is succeeded by hypotension during tilt testing. We hypothesize that excessive tachycardia preceding hypotension and bradycardia is part of the vasovagal response during tilt testing of patients with VVS...
March 28, 2017: Pediatrics
https://www.readbyqxmd.com/read/28345114/peripheral-endothelial-function-after-arterial-switch-operation-for-d-looped-transposition-of-the-great-arteries
#8
Heather Y Sun, Katie Jo Stauffer, Susan E Nourse, Chau Vu, Elif Seda Selamet Tierney
Coronary artery re-implantation during arterial switch operation in patients with D-looped transposition of the great arteries (D-TGA) can alter coronary arterial flow and increase shear stress, leading to local endothelial dysfunction, although prior studies have conflicting results. Endothelial pulse amplitude testing can predict coronary endothelial dysfunction by peripheral arterial testing. This study tested if, compared to healthy controls, patients with D-TGA after arterial switch operation had peripheral endothelial dysfunction...
March 27, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28341843/multistructure-index-characterization-of-heart-rate-and-systolic-blood-pressure-reveals-precursory-signs-of-syncope
#9
Danuta Makowiec, Beata Graff, Zbigniew R Struzik
Recurrent syncope - abrupt loss of consciousness - can have a serious impact on patients' quality of life, comparable with chronic illnesses. Vasovagal syncope (VVS) is a specific reflex syncope, in which an inappropriate reaction of the autonomic nervous system (ANS) plays a key role in the pathophysiology. In syncope diagnosis, an ideal diagnostic method should positively identify vasovagal sensitive patients, without the need to perform a specialised head-up tilt table (HUTT) test. We apply a novel methodology of multistructure index (MI) statistics for seamlessly evaluating the size spectrum of the asymmetry properties of magnitudes of neural reflexes responsible for maintaining the homeostatic dynamics of autonomic control...
March 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28333901/influence-of-the-recurrent-syncope-episodes-on-neurocognitive-functions-in-patients-with-vasovagal-syncope
#10
Joanna Jędrzejczyk-Spaho, Artur Z Pietrucha, Agnieszka Borowiec, Irena Bzukała, Mateusz Wnuk, Ewa Konduracka, Jadwiga Nessler
The aim of study was to evaluate an influence of recurrent syncope episodes on the neurocognitive functions (NCF) in patients with suspected VVS. AIM: The aim of study was to evaluate an influence of recurrent syncope episodes on the neurocognitive functions (NCF) in patients with suspected VVS. MATERIALS AND METHODS: Study population: 24 pts. (16 women) aged 17-70 yrs (mean age 40 years), with suspected VVS, referred to HUTT (head-up tilt test). All pts. underwent initial evaluation regarding to the number and circumstances of the syncopal and/or presyncopal spells...
March 21, 2017: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28294432/should-we-treat-severe-vasovagal-syncope-with-a-pacemaker
#11
REVIEW
R Sutton
Cardiac pacing for vasovagal syncope (VVS) addresses the cardioinhibitory component of the reflex but cannot directly affect vasodepression, which occurs in every reflex even when hidden by dominant cardioinhibition. The randomized controlled trials of pacing in VVS have, after almost 2 decades, determined that a small number of patients can benefit because their vasodepressor component is not severe. Early studies compared pacing with no therapy yielding highly significant benefits. Subsequently, all study patients had implanted devices with half being switched off...
March 14, 2017: Journal of Internal Medicine
https://www.readbyqxmd.com/read/28286245/pacing-as-a-treatment-for-reflex-mediated-vasovagal-situational-or-carotid-sinus-hypersensitivity-syncope-a-systematic-review-for-the-2017-acc-aha-hrs-guideline-for-the-evaluation-and-management-of-patients-with-syncope-a-report-of-the-american-college-of-cardiology
#12
Paul D Varosy, Lin Y Chen, Amy L Miller, Peter A Noseworthy, David J Slotwiner, Venkatesh Thiruganasambandamoorthy
OBJECTIVE: To determine, using systematic review of the biomedical literature, whether pacing reduces risk of recurrent syncope and relevant clinical outcomes among adult patients with reflex-mediated syncope. METHODS: MEDLINE (through PubMed), EMBASE, and the Cochrane Central Register of Controlled Trials (through October 7, 2015) were searched for randomized trials and observational studies examining pacing and syncope, and the bibliographies of known systematic reviews were also examined...
March 9, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28286220/pacing-as-a-treatment-for-reflex-mediated-vasovagal-situational-or-carotid-sinus-hypersensitivity-syncope-a-systematic-review-for-the-2017-acc-aha-hrs-guideline-for-the-evaluation-and-management-of-patients-with-syncope-a-report-of-the-american-college-of-cardiology
#13
Paul D Varosy, Lin Y Chen, Amy L Miller, Peter A Noseworthy, David J Slotwiner, Venkatesh Thiruganasambandamoorthy
OBJECTIVE: To determine, using systematic review of the biomedical literature, whether pacing reduces risk of recurrent syncope and relevant clinical outcomes among adult patients with reflex-mediated syncope. METHODS: MEDLINE (through PubMed), EMBASE, and the Cochrane Central Register of Controlled Trials (through October 7, 2015) were searched for randomized trials and observational studies examining pacing and syncope, and the bibliographies of known systematic reviews were also examined...
March 3, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28268420/delta-space-plot-analysis-of-cardiovascular-coupling-in-vasovagal-syncope-during-orthostatic-challenge
#14
S Reulecke, S Charleston-Villalobos, A Voss, R Gonzalez-Camarena, M Gaitan-Gonzalez, J Gonzalez-Hermosillo, G Hernandez-Pacheco, T Aljama-Corrales
In this work, a graphical method to study cardiovascular coupling, called delta space plot analysis (DSPA), was introduced. The graphical representation is susceptible to be parameterized in shape and orientation. The usefulness of this technique was studied on cardiovascular data from patients with vasovagal syncope (VVS) and from controls. The study included 15 female patients diagnosed with VVS and 11 age-matched healthy female subjects. All subjects were enrolled in a head-up tilt (HUT) test, breathing normally, including 5 minutes of supine position (baseline) and 18 minutes of 70° orthostatic phase...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28259551/diagnostic-yield-of-device-interrogation-in-the-evaluation-of-syncope-in-an-elderly-population
#15
Robert N D'Angelo, Christopher C Pickett
BACKGROUND: Device interrogation has become a standard part of the syncope evaluation for patients admitted with permanent pacemakers (PPM) or implantable cardiac defibrillators (ICD), although few studies have shown interrogation yields clinically useful data. The purpose of this study is to determine the diagnostic yield of device interrogation as well as other commonly performed tests in the workup of unexplained syncope in patients with previously implanted PPMs or ICDs. METHODS: We retrospectively reviewed records of 88 patients admitted to our medical center for syncope with previously implanted pacemakers between January 1, 2005 and January 1, 2015 using ICD-9 billing data...
February 27, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28244210/clinical-characteristics-and-outcome-of-patients-with-situational-syncope-compared-to-patients-with-vasovagal-syncope
#16
Kevin E Wenzke, Kathleen E Walsh, Matthew Kalscheur, Stephen L Wasmund, Richard L Page, Michele Brignole, Mohamed H Hamdan
BACKGROUNDS: The purpose of the study was to assess the clinical outcome of patients with situational syncope (SS) compared to patients with vasovagal syncope (VVS). METHODS: We assessed the prevalence, patients' characteristics, and outcome of consecutive patients with SS and VVS who presented to the Faint and Fall Clinic (University of Wisconsin) between January 2013 and December 2015. RESULTS: SS was found in 55/1,401 (4.0%) syncope patients with follow-up data available in 47 patients: defecation (n = 16), micturition (n = 15), cough (n = 10), swallow (n = 3), laughter (n = 1), sneeze (n = 1), and cough plus laughter (n = 1)...
February 28, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28240408/tilt-table-testing-to-diagnose-pseudosyncope-in-the-pediatric-population
#17
Jeffrey A Robinson, Jill K Shivapour, Christopher S Snyder
OBJECTIVE: Pseudosyncope can be difficult to distinguish from true syncope. Often, pediatric patients with pseudosyncope undergo multiple tests and referrals before the appropriate diagnosis is reached. The purpose is to describe the utility of the head-up tilt table test to elicit the diagnosis of pseudosyncope in the pediatric population. DESIGN: Retrospective chart review from November 2012 to December 2015 of patients age ≤23 years referred for 30-minute, 80-degree tilt table test...
February 27, 2017: Congenital Heart Disease
https://www.readbyqxmd.com/read/28226590/delta-space-plot-analysis-of-cardiovascular-coupling-in-vasovagal-syncope-during-orthostatic-challenge
#18
S Reulecke, S Charleston-Villalobos, A Voss, R Gonzalez-Camarena, M Gaitan-Gonzalez, J Gonzalez-Hermosillo, G Hernandez-Pacheco, T Aljama-Corrales, S Reulecke, S Charleston-Villalobos, A Voss, R Gonzalez-Camarena, M Gaitan-Gonzalez, J Gonzalez-Hermosillo, G Hernandez-Pacheco, T Aljama-Corrales, S Reulecke, S Charleston-Villalobos, G Hernandez-Pacheco, M Gaitan-Gonzalez, J Gonzalez-Hermosillo, A Voss, T Aljama-Corrales, R Gonzalez-Camarena
In this work, a graphical method to study cardiovascular coupling, called delta space plot analysis (DSPA), was introduced. The graphical representation is susceptible to be parameterized in shape and orientation. The usefulness of this technique was studied on cardiovascular data from patients with vasovagal syncope (VVS) and from controls. The study included 15 female patients diagnosed with VVS and 11 age-matched healthy female subjects. All subjects were enrolled in a head-up tilt (HUT) test, breathing normally, including 5 minutes of supine position (baseline) and 18 minutes of 70° orthostatic phase...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28217221/byung-gyu-kim-et-al-reduced-systemic-vascular-resistance-is-the-underlying-hemodynamic-mechanism-in-nitrate-stimulated-vasovagal-syncope-during-head-up-tilt-table-test
#19
Arttu Eräranta, Antti Tikkakoski, Ilkka H Pörsti
No abstract text is available yet for this article.
February 2017: Journal of Arrhythmia
https://www.readbyqxmd.com/read/28212873/temperament-and-character-personality-dimensions-in-nitrate-tilt-induced-vasovagal-syncope-patients
#20
Vincenzo Russo, Ahmed AlTurki, Anna Rago, Riccardo Proietti, Guillaume Chaussé, Alessio Maria Monteleone, Pasquale Scognamiglio, Palmiero Monteleone, Gerardo Nigro
INTRODUCTION: Vasovagal syncope (VVS) is a clinical syndrome characterized by transient loss of consciousness and postural tone that is due to a temporary and spontaneously self-terminating global cerebral hypoperfusion. It is known that personality modulates the individual's sensitivity to stressors, and emotional arousal and psychologic uncertainty are conditions contributing to vasodepressor syncope. Therefore it is postulated that personality characteristics of VVS patients could have a role in the pathophysiology of VVS...
February 14, 2017: Hellenic Journal of Cardiology: HJC, Hellēnikē Kardiologikē Epitheōrēsē
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