Andersen-Tawil syndrome electrocardiogram: Difference between revisions
Jump to navigation
Jump to search
| Line 4: | Line 4: | ||
== Overview == | == Overview == | ||
An ECG may be very helpful in the diagnosis of Andersen-Tawil Syndrome. Findings on an ECG diagnostic of Andersen-Tawil Syndrome include a long QTc (LQT) interval, U waves, wide T-U junction and T-waves. | An [[The electrocardiogram|ECG]] may be very helpful in the [[diagnosis]] of [[Andersen-Tawil syndrome|Andersen]]-Tawil Syndrome. Findings on an [[The electrocardiogram|ECG]] [[diagnostic]] of [[Andersen-Tawil syndrome|Andersen-Tawil Syndrome]] include a long [[QT interval|QTc]] (LQT) interval, [[U waves]], wide T-U junction and [[T wave|T-waves]]. | ||
== Electrocardiogram == | == Electrocardiogram == | ||
An ECG may be helpful in the diagnosis of Andersen-Tawil Syndrome. Findings on an ECG diagnostic of Andersen-Tawil Syndrome include:<ref name="pmid24827800">{{cite journal| author=Kukla P, Biernacka EK, Baranchuk A, Jastrzebski M, Jagodzinska M| title=Electrocardiogram in Andersen-Tawil syndrome. New electrocardiographic criteria for diagnosis of type-1 Andersen-Tawil syndrome. | journal=Curr Cardiol Rev | year= 2014 | volume= 10 | issue= 3 | pages= 222-8 | pmid=24827800 | doi=10.2174/1573403x10666140514102528 | pmc=4040873 | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=24827800 }}</ref> | An [[The electrocardiogram|ECG]] may be helpful in the [[diagnosis]] of [[Andersen-Tawil syndrome|Andersen-Tawil Syndrome]]. Findings on an [[The electrocardiogram|ECG]] [[Diagnosis|diagnostic]] of [[Andersen-Tawil syndrome|Andersen-Tawil Syndrome]] include:<ref name="pmid24827800">{{cite journal| author=Kukla P, Biernacka EK, Baranchuk A, Jastrzebski M, Jagodzinska M| title=Electrocardiogram in Andersen-Tawil syndrome. New electrocardiographic criteria for diagnosis of type-1 Andersen-Tawil syndrome. | journal=Curr Cardiol Rev | year= 2014 | volume= 10 | issue= 3 | pages= 222-8 | pmid=24827800 | doi=10.2174/1573403x10666140514102528 | pmc=4040873 | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=24827800 }}</ref> | ||
* A long QTc (LQT) interval | * A long [[QT interval|QTc]] (LQT) interval | ||
* T-U patterns which are very characteristic to the syndrome<ref name="pmid15911703">{{cite journal| author=Zhang L, Benson DW, Tristani-Firouzi M, Ptacek LJ, Tawil R, Schwartz PJ | display-authors=etal| title=Electrocardiographic features in Andersen-Tawil syndrome patients with KCNJ2 mutations: characteristic T-U-wave patterns predict the KCNJ2 genotype. | journal=Circulation | year= 2005 | volume= 111 | issue= 21 | pages= 2720-6 | pmid=15911703 | doi=10.1161/CIRCULATIONAHA.104.472498 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=15911703 }}</ref> | * T-U patterns which are very characteristic to the syndrome<ref name="pmid15911703">{{cite journal| author=Zhang L, Benson DW, Tristani-Firouzi M, Ptacek LJ, Tawil R, Schwartz PJ | display-authors=etal| title=Electrocardiographic features in Andersen-Tawil syndrome patients with KCNJ2 mutations: characteristic T-U-wave patterns predict the KCNJ2 genotype. | journal=Circulation | year= 2005 | volume= 111 | issue= 21 | pages= 2720-6 | pmid=15911703 | doi=10.1161/CIRCULATIONAHA.104.472498 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=15911703 }}</ref> | ||
*Prominent U-wave enlargement which are biphasic in limb leads | *Prominent [[U wave|U-wave]] enlargement which are [[biphasic]] in [[limb leads]] | ||
*A wide T-U junction | *A wide T-U junction | ||
*Prolonged terminal T-wave | *Prolonged terminal [[T wave|T-wave]] | ||
*Premature ventricular contractions (PVC) especially at '''"rest"''' in Andersen - Tawil syndrome (ATS) patients | *[[Premature ventricular contraction|Premature ventricular contractions]] ([[Premature ventricular contraction|PVC]]) especially at '''"rest"''' in Andersen-Tawil syndrome (ATS) patients | ||
**PVC's at rest helps in differentiating ATS from catecholaminergic polymorphic ventricular tachycardia (CPVT) | **[[Premature ventricular contraction|PVC's]] at rest helps in differentiating ATS from [[catecholaminergic polymorphic ventricular tachycardia]] ([[Catecholaminergic polymorphic ventricular tachycardia|CPVT]]) | ||
* Polymorphic ventricular tachycardia (PMVT) which is called bidirectional ventricular tachycardia (BiVT) | *[[Polymorphic ventricular tachycardia]] (PMVT) which is called [[Bidirectional Ventricular Tachycardia|bidirectional ventricular tachycardia]] (BiVT) | ||
*In ATS when the patient deteriorates we can see VF which can lead to sudden death | *In [[Andersen-Tawil syndrome|ATS]] when the patient deteriorates we can see [[Ventricular fibrillation|VF]] which can lead to [[sudden death]] | ||
==Electrocardiogram== | ==Electrocardiogram== | ||
Revision as of 05:39, 9 February 2020
|
Andersen-Tawil syndrome Microchapters |
|
Diagnosis |
|---|
|
Treatment |
|
Case Studies |
|
Andersen-Tawil syndrome electrocardiogram On the Web |
|
American Roentgen Ray Society Images of Andersen-Tawil syndrome electrocardiogram |
|
Risk calculators and risk factors for Andersen-Tawil syndrome electrocardiogram |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Charmaine Patel, M.D. [2]; Raviteja Guddeti, M.B.B.S. [3]
Overview
An ECG may be very helpful in the diagnosis of Andersen-Tawil Syndrome. Findings on an ECG diagnostic of Andersen-Tawil Syndrome include a long QTc (LQT) interval, U waves, wide T-U junction and T-waves.
Electrocardiogram
An ECG may be helpful in the diagnosis of Andersen-Tawil Syndrome. Findings on an ECG diagnostic of Andersen-Tawil Syndrome include:[1]
- A long QTc (LQT) interval
- T-U patterns which are very characteristic to the syndrome[2]
- Prominent U-wave enlargement which are biphasic in limb leads
- A wide T-U junction
- Prolonged terminal T-wave
- Premature ventricular contractions (PVC) especially at "rest" in Andersen-Tawil syndrome (ATS) patients
- PVC's at rest helps in differentiating ATS from catecholaminergic polymorphic ventricular tachycardia (CPVT)
- Polymorphic ventricular tachycardia (PMVT) which is called bidirectional ventricular tachycardia (BiVT)
- In ATS when the patient deteriorates we can see VF which can lead to sudden death
Electrocardiogram
Although polymorphic ventricular tachycardia is a common arrhythmia in patients with Anderson syndrome, decompensation into a hemodynamically compromising rhythm, or ventricular fibrillation, is rare. The following EKG findings are seen in patients with Andersen-Tawil syndrome:
- Biphasic U waves in limb leads
- Widened T-U junction
- Large U waves
- Prolonged terminal T wave downslope
- Prolonged Q-U intervals
References
- ↑ Kukla P, Biernacka EK, Baranchuk A, Jastrzebski M, Jagodzinska M (2014). "Electrocardiogram in Andersen-Tawil syndrome. New electrocardiographic criteria for diagnosis of type-1 Andersen-Tawil syndrome". Curr Cardiol Rev. 10 (3): 222–8. doi:10.2174/1573403x10666140514102528. PMC 4040873. PMID 24827800.
- ↑ Zhang L, Benson DW, Tristani-Firouzi M, Ptacek LJ, Tawil R, Schwartz PJ; et al. (2005). "Electrocardiographic features in Andersen-Tawil syndrome patients with KCNJ2 mutations: characteristic T-U-wave patterns predict the KCNJ2 genotype". Circulation. 111 (21): 2720–6. doi:10.1161/CIRCULATIONAHA.104.472498. PMID 15911703.