Syncope other diagnostic studies: Difference between revisions
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*T[[tilt table test|ilt table test]] is used in the [[diagnostic]] work up of syncope cases. A positive test is highly suggestive of vasovagal syncope. | *T[[tilt table test|ilt table test]] is used in the [[diagnostic]] work up of syncope cases. A positive test is highly suggestive of vasovagal syncope. | ||
**[[Tilt table test]] is especially useful in differentiating syncope from other possible causes of transient [[loss of consciousness]], such as [[epilepsy]] and [[conversion]] disorder.<ref name="Furukawa2017">{{cite journal|last1=Furukawa|first1=Toshiyuki|title=Role of head-up tilt table testing in patients with syncope or transient loss of consciousness|journal=Journal of Arrhythmia|volume=33|issue=6|year=2017|pages=568–571|issn=18804276|doi=10.1016/j.joa.2017.08.002}}</ref> | **[[Tilt table test]] is especially useful in differentiating syncope from other possible causes of transient [[loss of consciousness]], such as [[epilepsy]] and [[conversion]] disorder.<ref name="Furukawa2017">{{cite journal|last1=Furukawa|first1=Toshiyuki|title=Role of head-up tilt table testing in patients with syncope or transient loss of consciousness|journal=Journal of Arrhythmia|volume=33|issue=6|year=2017|pages=568–571|issn=18804276|doi=10.1016/j.joa.2017.08.002}}</ref> | ||
* [[Exercise stress test]] ([[EST]]) is recommended in the presence of [[syncope]] during exercise or syncope during the occurrence of angina pectori suspected [[myocardial ischemia]].( Class 2a, 2017 AHA/ACC/HRS Guideline). | * [[Exercise stress test]] ([[EST]]) is recommended in the presence of [[syncope]] during exercise or syncope during the occurrence of angina pectori suspected [[myocardial ischemia]]. ( Class 2a, 2017 AHA/ACC/HRS Guideline). | ||
:* Contraindications for [[EST]] in patients with [[syncope]] include: | :* Contraindications for [[EST]] in patients with [[syncope]] include: | ||
::* [[Hypertrophic obstructive cardiomyopathy]], severe [[aortic stenosis]] | ::* [[Hypertrophic obstructive cardiomyopathy]], severe [[aortic stenosis]] | ||
Revision as of 08:03, 23 November 2020
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Sahar Memar Montazerin, M.D.[2] Sara Zand, M.D.[3]
Overview
Other diagnostic studies for syncope include tilt table test. Tilt table test is especially useful in differentiating syncope from other possible causes of transient loss of consciousness, such as epilepsy and conversion disorder. Exercise stress test (EST) is recommended in the presence of syncope during exercise or syncope during the occurrence of angina pectori suspected myocardial ischemia ( Class 2a, 2017 AHA/ACC/HRS Guideline). Contraindications for EST in patients with syncope include: hypertrophic obstructive cardiomyopathy, severe aortic stenosis,Catecholaminegic polymorphic ventricular tachycardia(CPVT), pulmonary artery hepertension,Interarterial anomalous coronary artery ,Long QT syndrome type 1
Other Diagnostic Studies
Other diagnostic studies for syncope include:[1]
- Tilt table test is used in the diagnostic work up of syncope cases. A positive test is highly suggestive of vasovagal syncope.
- Tilt table test is especially useful in differentiating syncope from other possible causes of transient loss of consciousness, such as epilepsy and conversion disorder.[1]
- Exercise stress test (EST) is recommended in the presence of syncope during exercise or syncope during the occurrence of angina pectori suspected myocardial ischemia. ( Class 2a, 2017 AHA/ACC/HRS Guideline).
Tilt Table Test[1]
A tilt table test can help to reveal abnormal cardiovascular reflexes that produce syncope. During the test, you stand and your initial blood pressure and heart rate are recorded as the baseline. Then the table is tilted at 70 degrees for 45 minutes. Your blood pressure and heart rate are recorded again. At the same time, the nurse observes whether symptoms such as nausea or vomiting appear. A positive result suggests the possibility of vasovagal syncope. {{#ev:youtube|-t-ZhMssEbE}}