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Editor's Correspondence
July 27, 1998

Torsade or Not Torsade? That Is the Question

Arch Intern Med. 1998;158(14):1578-1579. doi:

In reply

Verdino's letter seems to miss practically everything about the case we described.

In the first place, his comments about prolongation of QT interval are irrelevant since there was no preceding electrocardiogram from which QTc could be determined. On the only previous tracing, there was a ventricular bigeminy, which meant that QTc could not be measured on the alternating sinus beats.

Second, as Verdino himself observes, after the episode our patient received a number of agents that shorten QTc, which again, was not possible to measure.

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