Managing AF in the setting of a prolonged QTc interval?

[DarkProtonics]

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What drugs would be useful for managing AF in the setting of a prolonged QTc interval? I'm guessing diltiazem, verapamil, and digoxin, b/c I haven't seen any evidence that they do prolong the QTc interval from reading studies.

The reason I'm asking is b/c I'll be shadowing a cardiologist on Friday, and I want to bone up on my cardiac pharmacotherapy knowledge. He'll be teaching me all sorts of stuff over the next weeks, such as reading ECGs, TTEs, MUGAs, nuclear and non-nuclear stress tests, cardiopulmonary physiology, etc., lots of cool stuff.

Btw, what counts as a "prolonged" QTc interval, > 440 ms for men, and > 450 ms for women?

Thanks!

 

[HumidBeing]

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The SDN forums are not the appropriate place to seek advice regarding diagnosis, treatment, or interpretation of medical tests.

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