Vasovagal syncope with asystole: the role of cardiac pacing

2017 ◽  
Vol 27 (4) ◽  
pp. 245-251 ◽  
Author(s):  
Michele Brignole ◽  
Marco Tomaino ◽  
Alessio Gargaro
Keyword(s):  
Vasovagal Syncope ◽  
Cardiac Pacing

scholarly journals Role of permanent cardiac pacing for vasovagal syncope

2014 ◽  
Vol 30 (6) ◽  
pp. 417-420
Author(s):  
Masataka Sumiyoshi
Keyword(s):  
Vasovagal Syncope ◽  
Cardiac Pacing

scholarly journals Computational Analysis of Coronary Blood Flow: The Role of Asynchronous Pacing and Arrhythmias

Mathematics ◽  
2020 ◽  
Vol 8 (8) ◽  
pp. 1205
Author(s):  
Timur Gamilov ◽  
Philipp Kopylov ◽  
Maria Serova ◽  
Roman Syunyaev ◽  
Andrey Pikunov ◽  
...  
Keyword(s):  
Heart Rate ◽  
Blood Flow ◽  
Coronary Blood Flow ◽  
Long Qt Syndrome ◽  
Premature Ventricular Contraction ◽  
Cardiac Pacing ◽  
Long Qt ◽  
Computational Evaluation ◽  
Qt Syndrome

In this work we present a one-dimensional (1D) mathematical model of the coronary circulation and use it to study the effects of arrhythmias on coronary blood flow (CBF). Hydrodynamical models are rarely used to study arrhythmias’ effects on CBF. Our model accounts for action potential duration, which updates the length of systole depending on the heart rate. It also includes dependency of stroke volume on heart rate, which is based on clinical data. We apply the new methodology to the computational evaluation of CBF during interventricular asynchrony due to cardiac pacing and some types of arrhythmias including tachycardia, bradycardia, long QT syndrome and premature ventricular contraction (bigeminy, trigeminy, quadrigeminy). We find that CBF can be significantly affected by arrhythmias. CBF at rest (60 bpm) is 26% lower in LCA and 22% lower in RCA for long QT syndrome. During bigeminy, trigeminy and quadrigeminy, respectively, CBF decreases by 28%, 19% and 14% with respect to a healthy case.

Cardiac Pacing During Neurocardiogenic (Vasovagal) Syncope

1995 ◽  
Vol 6 (9) ◽  
pp. 751-760 ◽  
Author(s):  
JASBIR S. SRA ◽  
MASOOD AKHTAR
Keyword(s):  
Vasovagal Syncope ◽  
Cardiac Pacing

Comparison of Cardiac Pacing with Drug Therapy in the Treatment of Neurocardiogenic (Vasovagal) Syncope with Bradycardia or Asystole

1993 ◽  
Vol 328 (15) ◽  
pp. 1085-1090 ◽  
Author(s):  
Jasbir S. Sra ◽  
Mohammad R. Jazayeri ◽  
Boaz Avitall ◽  
Anwer Dhala ◽  
Sanjay Deshpande ◽  
...  
Keyword(s):  
Drug Therapy ◽  
Vasovagal Syncope ◽  
Cardiac Pacing

Vasovagal Syncope: Diagnostic Role of Head-Up Tilt Test in Patients with Positive Ocular Compression Test

1990 ◽  
Vol 13 (11) ◽  
pp. 1416-1423 ◽  
Author(s):  
FREDRICK J. JAEGER ◽  
LORI SCHNEIDER ◽  
JAMES D. MALONEY ◽  
ROBERT P. CRUSE ◽  
FETNAT M. FOUAD-TARAZI
Keyword(s):  
Compression Test ◽  
Vasovagal Syncope ◽  
Tilt Test ◽  
Diagnostic Role ◽  
Head Up Tilt ◽  
Head Up Tilt Test

Reflex syncope

ESC CardioMed ◽  
2018 ◽  
pp. 2024-2028
Author(s):  
Jean-Claude Deharo
Keyword(s):  
Carotid Sinus ◽  
Vasovagal Syncope ◽  
Cardiac Pacing ◽  
Tilt Test ◽  
Specific Situation ◽  
Diagnostic Strategy ◽  
Reflex Syncope ◽  
Specific Subgroup ◽  
Recent Developments ◽  
Head Up Tilt Test

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.

The role of pacing for the management of neurally mediated syncope: Carotid sinus syndrome and vasovagal syncope

1994 ◽  
Vol 127 (4) ◽  
pp. 1030-1037 ◽  
Author(s):  
James D. Maloney ◽  
Fredrick J. Jaeger ◽  
Carlos Rizo-Patron ◽  
Dennis W.X. Zhu
Keyword(s):  
Carotid Sinus ◽  
Vasovagal Syncope ◽  
Carotid Sinus Syndrome ◽  
Neurally Mediated Syncope

scholarly journals The role of psychological factors in response to treatment in neurocardiogenic (vasovagal) syncope

EP Europace ◽  
2006 ◽  
Vol 8 (8) ◽  
pp. 636-643 ◽  
Author(s):  
Jennifer Gracie ◽  
Julia L. Newton ◽  
Michael Norton ◽  
Christine Baker ◽  
Mark Freeston
Keyword(s):  
Psychological Factors ◽  
Vasovagal Syncope ◽  
Response To Treatment
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