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Vasovagal syncope

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https://www.readbyqxmd.com/read/28294432/should-we-treat-severe-vasovagal-syncope-with-a-pacemaker
#1
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
#2
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
#3
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
#4
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
#5
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
#6
Kevin E Wenzke, Kathleen E Walsh, Matthew Kalscheur, Stephen 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 55/1401(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
#7
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
#8
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
#9
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
#10
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
https://www.readbyqxmd.com/read/28100453/mechanisms-of-vasovagal-syncope-in-the-young-reduced-systemic-vascular-resistance-versus-reduced-cardiac-output
#11
Julian M Stewart, Marvin S Medow, Richard Sutton, Paul Visintainer, David L Jardine, Wouter Wieling
BACKGROUND: Syncope is a sudden transient loss of consciousness and postural tone caused by cerebral hypoperfusion. The most common form is vasovagal syncope (VVS). Presyncopal progressive early hypotension in older VVS patients is caused by reduced cardiac output (CO); younger patients have reduced systemic vascular resistance (SVR). Using a priori criteria for reduced CO (↓CO) and SVR (↓SVR), we studied 48 recurrent young fainters comparing subgroups of VVS with VVS-↓CO, VVS-↓SVR, and both VVS-↓CO&↓SVR...
January 18, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28093516/tilt-induced-vasovagal-syncope-and-psychogenic-pseudosyncope-overlapping-clinical-entities
#12
(no author information available yet)
No abstract text is available yet for this article.
January 17, 2017: Neurology
https://www.readbyqxmd.com/read/28073658/copeptin-levels-in-patients-with-vasovagal-syncope
#13
Panayota Flevari, Dionyssios Leftheriotis, Christos Kroupis, George Antonakos, John Lekakis, Kleanthi Dima
BACKGROUND AND PURPOSE: Vasovagal syncope (VVS) is linked to more than one pathophysiologic mechanisms. Copeptin, an emerging cardiovascular marker, is a surrogate for arginine-vasopressin, which increases following VVS. We aimed to assess the dynamic pattern of copeptin levels in typical VVS, categorized by the degree of vasoconstriction during orthostasis, and healthy controls. METHODS: The following groups were studied: Group A (n=21), with adequate limb vasoconstriction during the first min...
March 1, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28072962/-relationship-between-blood-routine-test-parameters-and-syncopal-recurrence-of-vasovagal-syncope-in-children
#14
J Y Song, H X Li, X Y Li, Y L Wang, H F Jin, J B Du
Objective: To explore the relationship between venous blood routine test parameters and syncopal recurrence of children with vasovagal syncope (VVS). Method: Sixty-three children (male 32, female 31) diagnosed as VVS in Department of Pediatrics, Peking University First Hospital from November 2010 to October 2015 were included in a case observational study.Their mean age was (11.2±2.7) years and basic treatment such as predisposing causes avoiding, standing training, autonomic nervous function exercise and oral rehydration salts were advised to them...
January 2, 2017: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/28055999/-role-of-the-sympathetic-nervous-system-in-vasovagal-syncope-and-rationale-for-beta-blockers-and-norepinephrine-transporter-inhibitors
#15
Manlio F Márquez, Jorge Rafael Gómez-Flores, Jesús A González-Hermosillo, Teresita de Jesús Ruíz-Siller, Manuel Cárdenas
Vasovagal or neurocardiogenic syncope is a common clinical situation and, as with other entities associated with orthostatic intolerance, the underlying condition is a dysfunction of the autonomic nervous system. This article reviews various aspects of vasovagal syncope, including its relationship with orthostatic intolerance and the role of the autonomic nervous system in it. A brief history of the problem is given, as well as a description of how the names and associated concepts have evolved. The response of the sympathetic system to orthostatic stress, the physiology of the baroreflex system and the neurohumoral changes that occur with standing are analyzed...
December 29, 2016: Medwave
https://www.readbyqxmd.com/read/28034919/management-of-vasovagal-syncope-where-are-we-today
#16
Seamas C Donnelly
No abstract text is available yet for this article.
December 2016: QJM: Monthly Journal of the Association of Physicians
https://www.readbyqxmd.com/read/27932282/serum-cardiac-troponin-i-in-canine-syncope-and-seizures
#17
E Dutton, J Dukes-McEwan, P J Cripps
OBJECTIVE: To determine if serum cardiac troponin I (cTnI) concentration distinguishes between cardiogenic syncope and collapsing dogs presenting with either generalized epileptic seizures (both with and without cardiac disease) or vasovagal syncope. ANIMALS: Seventy-nine prospectively recruited dogs, grouped according to aetiology of collapse: generalized epileptic seizures (group E), cardiogenic syncope (group C), dogs with both epileptic seizures and cardiac disease (group B), vasovagal syncope (group V) or unclassified (group U)...
February 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/27903377/-a-case-of-vasovagal-syncope-treatedwith-pacemaker-with-rate-drop-response
#18
T Lin, X W Xu, X Wei
No abstract text is available yet for this article.
October 24, 2016: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/27883352/-long-term-prognosis-in-patients-with-vasovagal-syncope-after-pacemaker-implantation
#19
REVIEW
Daria Bałczewska, Krzysztof Kaczmarek, Paweł Ptaszyński, Jerzy K Wranicz, Iwona Cygankiewicz
Patients with syncope, without presence of a structural or primary electrical disease, have a very good prognosis. On the other hand, recurring syncope has a negative impact on quality of life and involves a real risk of physical injuries. Vasovagal syncope usually requires no medical therapy and the most commonly recommended instruction include avoidance of fainting triggers, exercise that mainly provoke leg muscles tension, increase salt consumption and drink indicated amount of fluids. In the case cardioinhibitory type of vasovagal syncope the pacemaker implantation can consider...
November 25, 2016: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/27865628/the-genesis-and-presentation-of-anxiety-in-disorders-of-autonomic-overexcitation
#20
Andrew P Owens, David A Low, Valeria Iodice, Hugo D Critchley, Christopher J Mathias
INTRODUCTION: We investigated the genesis and presentation of previously-reported anxiety in disorders of autonomic overexcitation in relation to interoception, body vigilance and trauma to test our hypothesis that patients with the postural tachycardia syndrome (PoTS), vasovagal syncope (VVS) and essential hyperhidrosis (EH) represent atypical anxiety phenotypes in whom affective symptoms are more related to apprehension and vigilance of physiological (interoceptive) feedback than neurotic or trauma-related factors...
October 19, 2016: Autonomic Neuroscience: Basic & Clinical
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