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What Is De Pointes?

Chloe Bennett • • 5 min read
What Is De Pointes?

Torsades de Pointes is a type of polymorphic ventricular tachycardia characterized on electrocardiogram by oscillatory changes in amplitude of the QRS complexes around the isoelectric line. Torsades de Pointes is associated with QTc prolongation

QTc prolongation
Drug-induced QT prolongation is defined as a QTc of 500 ms or greater or an increase of 60 ms or greater in the QT interval compared with the premedication baseline interval. 1. Attempts should be made to correct any modifiable risk factor.
, which is the heart rate adjusted lengthening of the QT interval.

What causes Torsades de Pointes?

Common causes for torsades de pointes include drug-induced QT prolongation and less often diarrhea, low serum magnesium, and low serum potassium or congenital long QT syndrome. It can be seen in malnourished individuals and chronic alcoholics, due to a deficiency in potassium and/or magnesium.

How do you fix torsades?

The torsades rhythm is treated with magnesium sulfate 2 g IV over 1 to 2 minutes, correction of hypokalemia, pacing or isoproterenol to increase heart rate, and correction of the cause.

Chloe Bennett
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Chloe Bennett

Chloe Bennett explores the intersection of pop culture, streaming entertainment, digital trends, and contemporary lifestyle. Her weekly commentary reaches thousands of culture enthusiasts.