AnatomyDiseasesChemicals and DrugsAnalytical, Diagnostic and Therapeutic Techniques and EquipmentPhenomena and Processes
Syncope, VasovagalSyncopeTilt-Table TestEtilefrineAutonomic DenervationMidodrinePostureHypotension, OrthostaticBradycardiaExercise Movement TechniquesPeripheral Nervous System AgentsUnconsciousnessRecurrenceSupine PositionDizzinessHeart RateAutonomic Nervous SystemBaroreflexBlood PressurePacemaker, ArtificialPure Autonomic FailureSympathomimeticsNitroglycerinLower Body Negative PressureElectrocardiographyPostural Orthostatic Tachycardia SyndromeMetoprololVagus NerveReflex, AbnormalHemodynamicsAdrenergic beta-AntagonistsCardiac Pacing, ArtificialSympathetic Nervous System
Neurocardiogenic syncopeRecurrent vasovagal syncopeLoss of consciousnPosturalFaintCarotidSituationalAnaphylaxisFaintingPediatric patientsSudden drop in blood pressureOccurDiagnosisAnaphylacticSymptomsNeurallyAutonomicOnsetReflexRefersAblationBenignHead Up TiltCerebralVenousPresyncopeAdolescentsTemporaryCARDIOVASCULARStructuralHospital admissionsBlood pressureCommonMortalityAssessmentEmotionalTraumaPatientsInterventionsHeart rateHistoryKeywordsResponseBrainEpisode
Neurocardiogenic syncope5
  • Neurocardiogenic syncope is the most common type of syncope among children and adults, accounting for up to 50% of cases. (uspharmacist.com)
  • Neurocardiogenic syncope is a self-limiting condition caused by an abnormal or exaggerated autonomic response to certain stimuli. (uspharmacist.com)
  • therefore, it is commonly used synonymously with the term neurocardiogenic syncope . (uspharmacist.com)
  • However, it is believed that 50% to 66% of these patients actually experience neurocardiogenic syncope. (uspharmacist.com)
  • Tilt table testing produces maximal venous pooling, which can trigger vasovagal (neurocardiogenic) syncope and reproduce the symptoms and signs that accompany it (nausea, light-headedness, pallor, hypotension, bradycardia). (msdmanuals.com)
Recurrent vasovagal syncope1
  • Methods Fourteen women (aged 18-30) suffering from recurrent vasovagal syncope and 15 age-matched healthy women were included. (diva-portal.org)
Loss of consciousn4
  • Syncope is a transient loss of consciousness associated with a loss of postural tone due to decreased cerebral perfusion. (uspharmacist.com)
  • Vasovagal syncope is defined as a momentary loss of consciousness. (spts.org)
  • Syncope is an abrupt and transient loss of consciousness caused by cerebral hypoperfusion. (aafp.org)
  • Syncope is a brief loss of consciousness and muscle tone that can occur when not enough blood gets to the brain. (stlouischildrens.org)
Postural3
  • Cerebral Blood Flow (CBF) velocity is shown in the image below for two common forms of OI, vasovagal syncope (VVS) and postural tachycardia syndrome (POTS). (medscape.com)
  • 2015 heart rhythm society expert consensus statement on the diagnosis and treatment of postural tachycardia syndrome, inappropriate sinus tachycardia, and vasovagal syncope. (nih.gov)
  • 30 beats/minute) with little change in BP (postural orthostatic tachycardia syndrome), and report of syncope with no hemodynamic changes (psychogenic syncope). (msdmanuals.com)
Faint2
  • Sometimes, especially if you are standing still, the body's calming response can prompt a faint, also known as vasovagal syncope. (discovermagazine.com)
  • People with vasovagal syncope will faint when exposed to certain triggers like pain, emotional stress, fear of needles or even just the sight of blood. (rojakpot.com)
Carotid4
  • Further classifications of this particular type of syncope include situational, carotid sinus, and vasovagal syncope. (uspharmacist.com)
  • Carotid sinus syncope is defined as syncope due to the manipulation of the carotid sinuses (i.e., rotation/turning of the head or pressure placed on the carotid sinuses) that may be reproduced by carotid sinus massage. (uspharmacist.com)
  • This type of syncope can happen when something pinches or constricts the carotid artery in your neck. (clevelandclinic.org)
  • Do not perform imaging of the carotid arteries for simple syncope without other neurologic symptoms. (aafp.org)
Situational2
  • Situational syncope refers to neurally mediated syncope commonly associated with cough, micturition, and defecation. (uspharmacist.com)
  • Situational vs vasovagal syncope : one but different? (lu.se)
Anaphylaxis4
  • See Table 1 for a side by side comparison of presenting features of anaphylaxis and vasovagal syncope. (canada.ca)
  • Table 1 lists clinical features that differentiate fainting due to vasovagal syncope from anaphylaxis. (canada.ca)
  • Table 1: Key distinguishing features of anaphylaxis and vasovagal syncope. (canada.ca)
  • The answer is a qualified "yes": it's entirely possible to experience vaccine injuries from an immunization, including brain damage such as encephalitis and encephalopathy as well as anaphylaxis, arthritis, vasovagal syncope, Guillain-Barré Syndrome, and SIRVA (Shoulder Injury Related to Vaccine Administration). (vaccineinjuryhelpcenter.com)
Fainting12
  • Vasovagal syncope is a medical term for a common fainting episode. (spts.org)
  • Vasovagal syncope is all about fainting, but why does it happen? (spts.org)
  • Vasovagal syncope is the most common type of fainting. (medicalnewstoday.com)
  • Mercury poisoning (especially methylmercury) Sleep deprivation Usher Syndrome Syncope (fainting) Eyeglass users experience tunnel vision to varying degrees due to the corrective lens only providing a small area of proper focus, with the rest of the field of view beyond the lenses being unfocused and blurry. (wikipedia.org)
  • Fainting during Urination (Micturition Syncope): What Causes It? (medlineplus.gov)
  • Vasovagal syncope is otherwise known as fainting and is the most common example of dysautonomia. (healthline.com)
  • Syncope is remarkably common: about one-third of people report having at least one episode of fainting during their lifetime. (harvard.edu)
  • The exact frequency of fainting post-immunization is not known but the majority of syncope adverse event reports involve adolescents or adults. (canada.ca)
  • This type of syncope involves fainting because of a heart problem. (clevelandclinic.org)
  • Syncope is commonly called fainting. (stlouischildrens.org)
  • Fainting, known to doctors as syncope (SIN-kuh-pee), is what happens when a disruption occurs in the blood flow to the brain. (discovermagazine.com)
  • The stimulation of the vagus nerve triggers a drop in heart rate and blood pressure that can result in dizziness and lightheadedness, and in some people, fainting (vasovagal syncope). (medicinenet.com)
Pediatric patients1
  • There is some clinical evidence of the association between vitamin B12 deficiency and vasovagal syncope (VVS) in pediatric patients. (authorea.com)
Sudden drop in blood pressure1
Occur3
  • Although the exact mechanism of this type of syncope is not fully understood, it is believed to occur as a result of reflex-mediated changes in vascular tone and/or heart rate. (uspharmacist.com)
  • A vasovagal collapse can occur after certain triggers (emotional or prolonged standing) which cause a reduction in sympathetic outflow to the systemic circulation and augmentation of efferent vagal activity. (syncopedia.org)
  • How often does syncope occur? (stlouischildrens.org)
Diagnosis2
  • This article delves into the definition, diagnosis, and prevention of vasovagal syncope. (spts.org)
  • Implantable loop recorders increase diagnostic yield, reduce time to diagnosis, and are cost-effective for suspected cardiac syncope and unexplained syncope. (aafp.org)
Anaphylactic1
  • Special emphasis is done to discuss recommendations to cope with undesirable events that may arise during anesthesia (vasovagal syncope, anesthetic toxicity, anaphylactic and allergic reactions). (intechopen.com)
Symptoms3
  • Patients with syncope who are at low risk of adverse events (e.g., those with symptoms consistent with vasovagal or orthostatic hypotension syncope, no history of heart disease, no family history of sudden cardiac death, and normal electrocardiographic findings) may be safely followed without further intervention or treatment. (aafp.org)
  • Did your child had any symptoms before the syncope? (stlouischildrens.org)
  • If vasovagal symptoms develop, vasovagal syncope is confirmed. (msdmanuals.com)
Neurally3
  • Syncope is classified as neurally mediated, cardiac, and orthostatic hypotension. (aafp.org)
  • Neurally mediated syncope is the most common type and has a benign course, whereas cardiac syncope is associated with increased morbidity and mortality. (aafp.org)
  • The treatment of neurally mediated and orthostatic hypotension syncope is largely supportive, although severe cases may require pharmacotherapy. (aafp.org)
Autonomic1
Onset1
Reflex3
Refers1
  • Vasovagal syncope (VVS) refers to a heterogeneous group of conditions whereby the cardiovascular reflexes normally controlling the circulation are interrupted irregularly in response to a trigger, resulting in vasodilation , bradycardia , or both. (bvsalud.org)
Ablation3
  • Ganglionated Plexus Ablation Procedures to Treat Vasovagal Syncope. (bvsalud.org)
  • The novel procedure of ganglionated plexus (GP) ablation has emerged rapidly in the past two decades, and has been proven successful in treating syncope . (bvsalud.org)
  • Cardiac syncope may require cardiac device placement or ablation. (aafp.org)
Benign1
Head Up Tilt1
  • In this case-control study, we included adult patients with VVS who presented to our tertiary syncope unit for a head-up tilt table test as the case group. (authorea.com)
Cerebral1
  • Cardiovascular and Cerebral Responses During a Vasovagal Reaction Without Syncope. (unil.ch)
Venous1
  • The results emphasize the importance of venous return and cardiac output in the pathogenesis of vasovagal syncope. (diva-portal.org)
Presyncope2
  • Patients with presyncope have similar prognoses to those with syncope and should undergo a similar evaluation. (aafp.org)
  • Patients who present with presyncope should be evaluated similarly to those who present with syncope. (aafp.org)
Adolescents1
  • Zhang Q, Du J, Wang C, Du Z, Wang L, Tang C. The diagnostic protocol in children and adolescents with syncope: a multi-centre prospective study. (vitamindwiki.com)
Temporary1
CARDIOVASCULAR1
  • The aim of the study was to assess cardiovascular biomarkers and echocardiographic measures at rest and during hypovolemia in women with and without a history of vasovagal syncope. (diva-portal.org)
Structural1
  • Patients with syncope and evidence of congestive heart failure or structural heart disease, abnormal electrocardiographic findings, or a family history of sudden death should be admitted to the hospital for emergent evaluation. (aafp.org)
Hospital admissions3
  • Syncope accounts for 1% to 6% of hospital admissions and 3% of emergency departments visits. (uspharmacist.com)
  • A standardized approach to syncope evaluation reduces hospital admissions and medical costs, and increases diagnostic accuracy. (aafp.org)
  • Syncope accounts for 1% to 1.5% of all emergency department visits, 250,000 annual hospital admissions, and a median hospital cost of $8,500. (aafp.org)
Blood pressure3
Common1
Mortality1
  • Although syncope is associated with serious risks, short-term mortality is low (i.e., 0.7% at 10 days and 1.6% at 30 days). (aafp.org)
Assessment1
Emotional1
  • Chronic stress and sudden emotional shocks can trigger a vasovagal response. (spts.org)
Trauma1
  • Avoid computed tomography of the head in asymptomatic adult patients in the emergency department with syncope, insignificant trauma, and a normal neurologic evaluation. (aafp.org)
Patients6
  • In most cases (up to 50%), patients who experience syncope have no exact cause despite comprehensive evaluation. (uspharmacist.com)
  • 2017 ACC/AHA/HRS guideline for the evaluation and management of patients with syncope: a report of the American College of Cardiology/American Heart Association task force on clinical practice guidelines and the heart rhythm society. (vitamindwiki.com)
  • In the present study, we tested the hypothesis that baroreflex sensitivity is reduced in patients with vasovagal syncope compared with normal control subjects. (uea.ac.uk)
  • Low-risk patients with a single episode of syncope can often be reassured with no further investigation. (aafp.org)
  • Laboratory and imaging studies should be ordered for patients with syncope only if clinically indicated by the history and physical examination. (aafp.org)
  • Approximately 25% of patients with syncope will experience another event within two years. (aafp.org)
Interventions1
  • Vasovagal syncope (VVS) is the most prevalent type of syncope and its management includes pharmacologic and non-pharmacologic interventions. (vitamindwiki.com)
Heart rate1
History2
  • We selected age- and sex-matched individuals without any history of syncope from the population-based Tehran Cohort Study as the control group. (authorea.com)
  • Rule number one: In vasovagal syncope, history rules. (discovermagazine.com)
Keywords1
  • International databases including Scopus, Web of Science, PubMed, and Embase were searched with keywords related to "vasovagal syncope" and "vitamin D." Studies were screened and the data were extracted from them. (vitamindwiki.com)
Response2
  • Syncope due to an emotionally-evoked vasovagal response with extreme bradycardia was diagnosed. (syncopedia.org)
  • This young patient is unique in 3 ways: First, only thinking of venipuncture was enough to induce a vasovagal response. (syncopedia.org)
Brain3
  • I just assumed it was a symptom of panic disorder, but after a doctor at a university hospital examined my brain waves, I was diagnosed with vasovagal syncope. (koreaboo.com)
  • It's an apt expression, because syncope occurs due to a sudden reduction in blood flow to the brain. (harvard.edu)
  • In the evaluation of simple syncope and a normal neurologic evaluation, do not obtain brain imaging studies (computed tomography or magnetic resonance imaging). (aafp.org)
Episode1
  • A single episode of vasovagal syncope might not be alarming. (spts.org)