Long QT Syndrome history and symptoms

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Overview

Patients with long QT syndrome may have a positive history of family history of syncope, seizures, cardiac arrest or first-degree relatives with known long QT syndrome. Symptoms of long QT syndrome include lightheadedness, palpitations, syncope or presyncope or seizure.

History and Symptoms

History

Patients with long QT syndrome may have a positive history of:^[1]

Prior history of cardiac arrest
Family history of syncope, seizures or cardiac arrest
First-degree relatives with known long QT syndrome
Using certain medications causing prolonged QT interval

Common Symptoms

Common symptoms of long QT syndrome include:^[2]^[3]

Lightheadedness
Palpitations
Syncope or presyncope

Less common symptoms

Less common symptoms of long QT syndrome include:

References

↑ Horigome H, Nagashima M, Sumitomo N, Yoshinaga M, Ushinohama H, Iwamoto M, Shiono J, Ichihashi K, Hasegawa S, Yoshikawa T, Matsunaga T, Goto H, Waki K, Arima M, Takasugi H, Tanaka Y, Tauchi N, Ikoma M, Inamura N, Takahashi H, Shimizu W, Horie M (February 2010). "Clinical characteristics and genetic background of congenital long-QT syndrome diagnosed in fetal, neonatal, and infantile life: a nationwide questionnaire survey in Japan". Circ Arrhythm Electrophysiol. 3 (1): 10–7. doi:10.1161/CIRCEP.109.882159. PMID 19996378.
↑ Schwartz PJ, Crotti L, Insolia R (August 2012). "Long-QT syndrome: from genetics to management". Circ Arrhythm Electrophysiol. 5 (4): 868–77. doi:10.1161/CIRCEP.111.962019. PMC 3461497. PMID 22895603.
↑ Vincent GM (October 2002). "The long QT syndrome". Indian Pacing Electrophysiol J. 2 (4): 127–42. PMC 1557415. PMID 16951729.

[pmid19996378-1] Horigome H, Nagashima M, Sumitomo N, Yoshinaga M, Ushinohama H, Iwamoto M, Shiono J, Ichihashi K, Hasegawa S, Yoshikawa T, Matsunaga T, Goto H, Waki K, Arima M, Takasugi H, Tanaka Y, Tauchi N, Ikoma M, Inamura N, Takahashi H, Shimizu W, Horie M (February 2010). "Clinical characteristics and genetic background of congenital long-QT syndrome diagnosed in fetal, neonatal, and infantile life: a nationwide questionnaire survey in Japan". Circ Arrhythm Electrophysiol. 3 (1): 10–7. doi:10.1161/CIRCEP.109.882159. PMID 19996378.

[pmid22895603-2] Schwartz PJ, Crotti L, Insolia R (August 2012). "Long-QT syndrome: from genetics to management". Circ Arrhythm Electrophysiol. 5 (4): 868–77. doi:10.1161/CIRCEP.111.962019. PMC 3461497. PMID 22895603.

[pmid16951729-3] Vincent GM (October 2002). "The long QT syndrome". Indian Pacing Electrophysiol J. 2 (4): 127–42. PMC 1557415. PMID 16951729.

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