scholarly journals Acquired long QT syndrome, manifesting in the first complex after a ventricular extrasystole

2021 ◽  
Vol 28 (2) ◽  
pp. 37-43
Author(s):  
O. V. Kononenko ◽  
S. A. Zenin ◽  
A. V. Fedoseenko ◽  
I. M. Felikov ◽  
O. V. Pyataeva ◽  
...  

A case report of unusual QT interval prolongation after ventricular premature beat is presented.

2016 ◽  
Vol 2 (2) ◽  
pp. 81-84
Author(s):  
Dániel Czuriga ◽  
Andrea Szegedi ◽  
Ferenc Győry ◽  
Attila Szilágyi ◽  
Sándor Sipka ◽  
...  

Abstract QT interval prolongation on the electrocardiogram is considered a precursory sign for imminent, potentially lethal ventricular arrhythmias. Beside the inherited condition of long QT syndrome, numerous drugs, certain electrolyte disturbances and early transmural ischemia have been identified to induce reversible prolongation of the QT interval, collectively called as acquired long QT syndrome. Herein we describe a case of a patient with transient QT prolongation and Takotsubo cardiomyopathy, a rather infrequent cause of long QT development. Serial changes of the repolarization pattern were documented to demonstrate progression and resolution of the abnormal QT interval.


Cardiology ◽  
2012 ◽  
Vol 122 (1) ◽  
pp. 3-11 ◽  
Author(s):  
John Chiladakis ◽  
Andreas Kalogeropoulos ◽  
Fani Zagkli ◽  
Nikolaos Koutsogiannis ◽  
Konstantinos Chouchoulis ◽  
...  

2020 ◽  
Vol 5 (4) ◽  
pp. 235-238
Author(s):  
L. A. Balykova ◽  
E. S. Samoshkina ◽  
Yu. A. Petrushkina ◽  
T. M. Zolnikova ◽  
A. V. Krasnopolskaya ◽  
...  

The article presents a review of literature data on the long QT syndrome (LQTS), focusing on the role of secondary factors in the development of this disorder. In particular, it describes in detail pseudohypoparathyroidism a rare genetically and clinically heterogeneous condition characterized by resistance to parathyroid hormone, often manifested by arrhythmogenic syncope and seizures. A specific clinical case illustrates the necessity to exclude the endocrine and electrolyte abnormalities in syncopal conditions associated with the QT interval prolongation.


2002 ◽  
Vol 77 (5) ◽  
pp. 413-421 ◽  
Author(s):  
MICHAEL J. ACKERMAN ◽  
ANANT KHOSITSETH ◽  
DAVID J. TESTER ◽  
JOSEPH B. HEJLIK ◽  
WIN-KUANG SHEN ◽  
...  

2002 ◽  
Vol 77 (5) ◽  
pp. 413-421 ◽  
Author(s):  
Michael J. Ackerman ◽  
Anant Khositseth ◽  
David J. Tester ◽  
Joseph B. Hejlik ◽  
Win-Kuang Shen ◽  
...  

2014 ◽  
Vol 2 (1) ◽  
pp. 44-45
Author(s):  
Ahmad Mursel Anam ◽  
Raihan Rabbani ◽  
Farzana Shumy ◽  
M Mufizul Islam Polash ◽  
M Motiul Islam ◽  
...  

We report a case of drug induced torsades de pointes, following acquired long QT syndrome. The patient got admitted for shock with acute abdomen. The initial prolonged QT-interval was missed, and a torsadogenic drug was introduced post-operatively. Patient developed torsades de pointes followed by cardiac arrest. She was managed well and discharged without complications. The clinical manifestations of long QT syndromes, syncope or cardiac arrest, result from torsades de pointes. As syncope or cardiac arrest have more common differential diagnoses, even the symptomatic long QT syndrome are commonly missed or misdiagnosed. In acquired long QT syndrome with no prior suggestive feature, it is not impossible to miss the prolonged QT-interval on the ECG tracing. We share our experience so that the clinicians, especially the junior doctors, will be more alert on checking the QT-interval even in asymptomatic patients. DOI: http://dx.doi.org/10.3329/bccj.v2i1.19970 Bangladesh Crit Care J March 2014; 2 (1): 44-45


1970 ◽  
Vol 6 (2) ◽  
pp. 73-82
Author(s):  
Filipe Santos Falani ◽  
Vinícius Nasser de Carvalho ◽  
Túlio Torres Vargas

Objetivo: Revisar a literatura em relação à associação do prolongamento do intervalo QT no eletrocardiograma e o uso de citalopram e escitalopram, antidepressivos de segunda geração de largo consumo em escala mundial. Materiais e Métodos: Revisão da literatura em bases de dados Scielo e Medline. Desenvolvimento: citalopram e escitalopram são antidepressivos conhecidos como indutores de QT Longo dose-induzida, e os riscos-benefícios devem ser avaliados antes de seu uso. O citalopram é o inibidor seletivo da recaptação da serotonina mais prescrito no mundo, enquanto o escitalopram é amplamente usado nas doenças depressivas maiores. O escitalopram é também amplamente prescrito devido seus efeitos colaterais leves e transitórios. A Síndrome do QT Longo ocorre devido uma alteração no sistema elétrico cardíaco. Uma duração do intervalo QT maior que 450ms em homens e 460ms em mulheres deve ser considerada anômala, com etiologia específica. Entretanto, arritmias cardíacas ocorrem mais frequentemente quando o QT é maior que 500ms. O principal mecanismo do QT Longo induzido por drogas é a inibição do canal de potássio hERG, particularmente naqueles pacientes com a variante polimórfica. Conclusão: Apesar da pequena prevalência de prolongamento do intervalo QT induzido em usuários de antidepressivos de segunda geração, dado seu amplo uso pela população, é necessária uma maior preocupação em relação à monitorização eletrocardiográfica, principalmente quando estiverem presentes fatores de risco ou sinais de overdose.Palavras-chave: Associação, Síndrome do QT Longo, Citalopram.ABSTRACTObjective: To review the literature regarding the association of QT prolongation on electrocardiogram and the use of citalopram and escitalopram, the second generation of wide consumption worldwide antidepressants. Materials and Methods: Literature review in Scielo and Medline databases. Development: Citalopram and escitalopram are antidepressants known as Long QT-inducing dose-induced, and the benefit-risk should be evaluated before use. Citalopram is the selective inhibitor of serotonin reuptake most widely prescribed in the world as escitalopram is widely used in major depressive disorder. Escitalopram is also widely prescribed because of its mild and transient side effects. The Long QT syndrome occurs because of a change in the cardiac electrical system. A duration of the QT interval greater than 450ms in men and 460ms in women should be considered anomalous, with specific etiology. However, cardiac arrhythmias occur more frequently when QT is greater than 500ms. The primary mechanism of drug-induced long QT is the inhibition of the hERG potassium channel, particularly in those patients with the polymorphic variant. Conclusion: Despite the low prevalence of QT interval prolongation induced in second-generation antidepressant users, given its wide use by the population, a greater concern for electrocardiographic monitoring is required, especially when there are risk factors or signs of overdose.Keywords: Association, Long QT Syndrome, Citalopram.


2014 ◽  
Vol 69 (2) ◽  
pp. 132-134 ◽  
Author(s):  
P. J. Van Asbroeck ◽  
W. Huybrechts ◽  
R. De Soir

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