Euthyroid sick syndrome electrocardiogram: Difference between revisions
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{{Euthyroid sick syndrome}} | {{Euthyroid sick syndrome}} | ||
{{CMG}}; {{AE}} | {{CMG}}; {{AE}}{{Akshun}} | ||
==Overview== | ==Overview== | ||
There are no specific [[ECG]] findings associated with [[euthyroid]] sick syndrome. However, [[euthyroid]] sick syndrome leads to hypothyroidism. The decrease in the levels of thyroid hormones causes decreased activity of the sympathetic nervous system. There can also be deposition of myxoedematous material within the myocardium. [[ECG]] in hypothyroidism will present with QT prolongation, | There are no specific [[ECG]] findings associated with [[euthyroid]] sick syndrome. However, [[euthyroid]] sick syndrome leads to [[hypothyroidism]]. The decrease in the levels of [[thyroid hormones]] causes decreased activity of the [[sympathetic nervous system]]. There can also be deposition of [[Myxomatous|myxoedematous]] material within the [[myocardium]]. [[ECG]] in [[hypothyroidism]] will present with [[QT prolongation]], f[[First degree AV block|irst degree AV block]], interventricular conduction delay. Severe cases of [[hypothyroidism]] will have [[bradycardia]] and [[low QRS voltage]]. | ||
==Electrocardiogram== | ==Electrocardiogram== | ||
There are no [[ECG]] findings associated with [[euthyroid]] sick syndrome. | There are no specific [[ECG]] findings associated with [[euthyroid]] sick syndrome. However, [[euthyroid]] sick syndrome leads to [[hypothyroidism]]. The decrease in the levels of [[thyroid hormones]] causes decreased activity of the [[sympathetic nervous system]]. There can also be deposition of [[Myxomatous|myxoedematous]] material within the [[myocardium]]. [[ECG]] in [[hypothyroidism]] will present with:<ref name="pmid1741526">{{cite journal |vauthors=Shi J, Sun HH |title=Decomposition of nonlinear non-Gaussian process and its application to nonlinear filter and predictor design |journal=Ann Biomed Eng |volume=19 |issue=4 |pages=457–72 |year=1991 |pmid=1741526 |doi= |url=}}</ref><ref name="pmid9761386">{{cite journal |vauthors=Inukai T, Takanashi K, Kobayashi H, Fujiwara Y, Tayama K, Aso Y, Takemura Y |title=Power spectral analysis of variations in heart rate in patients with hyperthyroidism or hypothyroidism |journal=Horm. Metab. Res. |volume=30 |issue=8 |pages=531–5 |year=1998 |pmid=9761386 |doi=10.1055/s-2007-978927 |url=}}</ref><ref name="pmid22801336">{{cite journal |vauthors=Astapova I, Hollenberg AN |title=The in vivo role of nuclear receptor corepressors in thyroid hormone action |journal=Biochim. Biophys. Acta |volume=1830 |issue=7 |pages=3876–81 |year=2013 |pmid=22801336 |pmc=3529203 |doi=10.1016/j.bbagen.2012.07.001 |url=}}</ref> | ||
* [[QT prolongation]] | |||
* [[First degree AV block|First degree AV block]] | |||
* Interventricular conduction delay | |||
* Severe cases of [[hypothyroidism]] will have: | |||
** [[Bradycardia]] | |||
** [[Low QRS voltage]]. | |||
==References== | ==References== | ||
Latest revision as of 15:56, 17 August 2017
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Akshun Kalia M.B.B.S.[2]
Overview
There are no specific ECG findings associated with euthyroid sick syndrome. However, euthyroid sick syndrome leads to hypothyroidism. The decrease in the levels of thyroid hormones causes decreased activity of the sympathetic nervous system. There can also be deposition of myxoedematous material within the myocardium. ECG in hypothyroidism will present with QT prolongation, first degree AV block, interventricular conduction delay. Severe cases of hypothyroidism will have bradycardia and low QRS voltage.
Electrocardiogram
There are no specific ECG findings associated with euthyroid sick syndrome. However, euthyroid sick syndrome leads to hypothyroidism. The decrease in the levels of thyroid hormones causes decreased activity of the sympathetic nervous system. There can also be deposition of myxoedematous material within the myocardium. ECG in hypothyroidism will present with:[1][2][3]
- QT prolongation
- First degree AV block
- Interventricular conduction delay
- Severe cases of hypothyroidism will have:
References
- ↑ Shi J, Sun HH (1991). "Decomposition of nonlinear non-Gaussian process and its application to nonlinear filter and predictor design". Ann Biomed Eng. 19 (4): 457–72. PMID 1741526.
- ↑ Inukai T, Takanashi K, Kobayashi H, Fujiwara Y, Tayama K, Aso Y, Takemura Y (1998). "Power spectral analysis of variations in heart rate in patients with hyperthyroidism or hypothyroidism". Horm. Metab. Res. 30 (8): 531–5. doi:10.1055/s-2007-978927. PMID 9761386.
- ↑ Astapova I, Hollenberg AN (2013). "The in vivo role of nuclear receptor corepressors in thyroid hormone action". Biochim. Biophys. Acta. 1830 (7): 3876–81. doi:10.1016/j.bbagen.2012.07.001. PMC 3529203. PMID 22801336.