Reflex Syncope

2015 ◽  
Author(s):  
Team DFTB
Keyword(s):  
Syncope ◽  
2010 ◽  
pp. 153-177 ◽  
Author(s):  
Michele Brignole ◽  
David G. Benditt

BMJ ◽  
1920 ◽  
Vol 2 (3113) ◽  
pp. 333-334
Author(s):  
A. G. Levy
Keyword(s):  

2021 ◽  
Vol 42 (Supplement_1) ◽  
Author(s):  
J M Farinha ◽  
L Parreira ◽  
A F Esteves ◽  
M Fonseca ◽  
A Pinheiro ◽  
...  

Abstract Introduction Reflex syncope is the result of an imbalance between the sympathetic and parasympathetic nervous system. The autonomic nervous system has been associated to some forms of atrial fibrillation (AF). Objective The aim of this study was to assess the prevalence of AF in patients with reflex syncope and a positive tilt table test and to identify the type of tilt test response in patients with AF in comparison to patients without AF. Methods We retrospectively studied consecutive patients that underwent a tilt table test at our institution between 2016 and 2019. We selected those patients with a positive test. Patients with an implanted pacemaker at the time of the tilt test and patients followed in a different institution were excluded. Previous diagnoses of AF episodes were assessed. We analysed the clinical characteristics and the tilt table test results according to previous history of AF. Results We studied 49 patients with a positive tilt test. Seven (14.3%) patients had previously diagnosed paroxysmal AF at the time of the tilt table test. Patients with AF were older, had more frequently hypertension, and the tilt test response was more frequently a vasodepressor than mixed or cardioinhibitory response (71.4% vs. 28.6%) (Table). In univariate analysis, age and hypertension were associated with AF, respectively, OR 1.08 (95% CI 1.01–1.17), p=0.034 and OR 10.80 (95% CI 1.19–98.36), p=0.035. A vasodepressor response was also associated with AF (OR 6.25, 95% CI 1.06–36.74, p=0.043). Conclusions Patients with reflex syncope and a positive tilt table test had a higher prevalence of AF than the general population. A vasodepressor response was associated with AF as were age and hypertension, demonstrating the possible impact of the autonomic nervous system and the multifactorial nature of AF. FUNDunding Acknowledgement Type of funding sources: None.


EP Europace ◽  
2015 ◽  
Vol 18 (9) ◽  
pp. 1427-1433 ◽  
Author(s):  
Michele Brignole ◽  
Francesco Arabia ◽  
Fabrizio Ammirati ◽  
Marco Tomaino ◽  
Fabio Quartieri ◽  
...  

2013 ◽  
Vol 31 (1) ◽  
pp. 123-129 ◽  
Author(s):  
Juan C. Guzman ◽  
Luciana V. Armaganijan ◽  
Carlos A. Morillo
Keyword(s):  

2015 ◽  
Vol 39 (1) ◽  
pp. 42-53 ◽  
Author(s):  
TOLGA AKSU ◽  
EBRU GOLCUK ◽  
KIVANÇ YALIN ◽  
TÜMER ERDEM GULER ◽  
İSMAIL ERDEN

2021 ◽  
pp. bmjmilitary-2021-001945
Author(s):  
Iain Parsons ◽  
J Ellwood ◽  
M J Stacey ◽  
N Gall ◽  
M Grundy-Bowers ◽  
...  

IntroductionReflex syncope is the most common subtype of syncope and, despite not being associated with increased mortality, often results in significant morbidity and costly diagnostics. Reflex syncope can be of concern for certain occupational groups and may be exacerbated by some occupations. Reflex syncope in the military is anecdotally common but the extent in the UK Armed Forces (UKAF) is unknown. The aim of this study was to assess the incidence and prevalence of reflex syncope in the UKAF.MethodsA retrospective search of the Defence Medical Information Capability Programme using prespecified read-codes was performed at defence primary healthcare centres over the period of 1 January 2019 to 1 January 2020. Data were obtained on 76 103 service personnel (SP) (53% of the UKAF).ResultsThe overall syncope case rate for the UKAF was 10.5 per 1000 person-years (p-yrs). In comparing services there was a significantly increased risk of syncope in the British Army (10.7 per 1000 p-yrs) compared with the Royal Air Force (8.6 per 1000 p-yrs) (p=0.0365), SP who served overseas (16.7 per 1000 p-yrs) in comparison with UK medical centres (10.3 per 1000 p-yrs) (p<0.0001), and British Army units that regularly took part in State Ceremonial and Public Duties (15.8 per 1000 p-yrs vs 10.2 per 1000 p-yrs) (p=0.0035). Army training units conferred a significantly reduced risk of syncope (p<0.0001).ConclusionsThese data are the first to define the incidence and prevalence of syncope in the UKAF. Orthostasis and heat are probable triggers, although recruits are potentially protected. These data offer opportunities to improve the health and well-being of SP, with economic, logistical and reputational benefits for the UKAF. Further research to identify personnel at risk of future syncopal events may allow for targeted use of countermeasures.


ESC CardioMed ◽  
2018 ◽  
pp. 2024-2028
Author(s):  
Jean-Claude Deharo

Reflex syncope, also called neurally mediated syncope, accounts for 56–73% of the aetiologies of syncope, with a balanced incidence over the various age categories. The most common form is ‘vasovagal syncope’ where the trigger is pain, fever, instrumentation, emotion, or orthostatic stress; ‘situational syncope’ refers to syncope triggered by a specific situation, that is, micturition, defecation, swallowing, cough; and ‘carotid sinus syncope’, which may be triggered by carotid sinus manipulation or diagnosed in patients with syncope and positive carotid sinus massage. The term ‘atypical reflex syncope’ is used to describe reflex syncope occurring without an apparent trigger: the diagnosis is mainly based on history, exclusion of other causes of syncope, and a positive head-up tilt test. Although recent developments have prompted new pathophysiological hypotheses, including the adenosine pathway, the diagnostic strategy for reflex syncope remains mainly based on clinical evaluation and very few ancillary diagnostic tests. The pharmacological armament is still very limited while new perspectives have been opened for specific subgroup of patients. Regarding the very rare patients who are candidates for permanent cardiac pacing, a new pragmatic approach may help their selection and the prediction of the effect of pacing.


2013 ◽  
Vol 02 (05) ◽  
Author(s):  
Richard Sutton
Keyword(s):  

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