Journals / Gülhane Tıp Dergisi / 2009 / Cilt: 51 - Sayı: 3

Torsades de pointes developing secondary to rapid onset isolated hypokalemia: A case report

Ani gelişen izole hipokalemiye bağlı "torsades de pointes": Olgu sunumu

Pages
186–189
DOI
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We herein report a case with torsades de pointes developing secondary to rapid-onset isolated hypokalemia in the presence of acute myelogenous leukemia and severe pneumonia in whom rapid infusion of potassium restored the QT interval to normal and eliminated the torsades de pointes.

📌 3 Key Takeaways

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Objective & Hypothesis:Torsades de pointes, which may be a life-threatening arrhythmia is usually defined as polymorphic ventricular tachycardia developing in association with prolongation of the QT interval.
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Key Findings & Data:Prolongation of the QT interval may be congenital as well as acquired due to various reasons including drug effects or electrolyte disorders.
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Conclusion & Impact:We herein report a case with torsades de pointes developing secondary to rapid-onset isolated hypokalemia in the presence of acute myelogenous leukemia and severe pneumonia in whom rapid infusion of potassium restored the QT interval to normal and eliminated the torsades de pointes.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Torsades de pointes, which may be a life-threatening arrhythmia is usually defined as polymorphic ventricular tachycardia developing in association with prolongation of the QT interval. Prolongation of the QT interval may be congenital as well as acquired due to various reasons including drug effects or electrolyte disorders. Torsades de pointes resulting from electrolyte abnormality is reportedly due to chronic hypocalcemia, hypokalemia or hypomagnesemia. Torsades de pointes resulting from rapid-onset isolated hypokalemia in childhood has not yet been reported. We herein report a case with torsades de pointes developing secondary to rapid-onset isolated hypokalemia in the presence of acute myelogenous leukemia and severe pneumonia in whom rapid infusion of potassium restored the QT interval to normal and eliminated the torsades de pointes.

Özet

Hayatı tehdit edebilen önemli bir ritm bozukluğu olan “torsades de pointes”, genellikle uzamış QT intervali ile ilişkili olarak gelişen polimorfik ventriküler taşikardi olarak tanımlanır. QT intervalindeki uzama doğumsal olabildiği gibi, ilaç kullanımı ve elektrolit bozuklukları gibi nedenlere bağlı olarak da gelişebilir. Elektrolit bozukluğu sonucu gelişen “torsades de pointes”nin kronik hipokalsemi, hipokalemi, hipomagnezemi nedeniyle oluştuğu bildirilmektedir. Çocukluk çağında hızlı başlangıçlı ani gelişen izole hipokalemiye bağlı “torsades de pointes” olgusu literatürde bildirilmemiştir. Bu yazıda akut miyeloblastik lösemili bir çocukta ağır pnömoni zemininde ani başlayan, izole hipokalemi sonucu gelişen ve hızlı potasyum replasman tedavisi ile düzelen “torsades de pointes” olgusu sunulmaktadır.

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Cite This Article

YOZGAT, Y., KILIÇ, A., DOKSAL, A., LENK, M. K. (2009). Torsades de pointes developing secondary to rapid onset isolated hypokalemia: A case report. Gülhane Tıp Dergisi, Cilt: 51 - Sayı: 3, 186–189. https://ajindex.com/articles/226159

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