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Quinn
Forum Elite Topics: 63 Posts: 308 |
What drugs prolong the QT interval?
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jayesh
| Forum Junior Topics: 2 Posts: 46
quinidine, procainamide, amiodarone
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sk
| Forum Senior Topics: 23 Posts: 122
and class 3 anti arrhythmics...pottash channel blockers
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jayesh
| Forum Junior Topics: 2 Posts: 46
hello sk, ur correct, thanx
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Quinn
| Forum Elite Topics: 63 Posts: 308
add to that tricyclic antidepressants, cispride, thioridazine, and believe it or not erythromycin. So, what happens when you prolong the QT interval?
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sk
| Forum Senior Topics: 23 Posts: 122
Torsades de pointes and u correct it by: 1. Discontinue the drugs 2. give magnesium 4.shorten the AP duration by giving isoprotenalol or electrical pacing...
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asmi
| Forum Hero Topics: 1049 Posts: 4620
well said 
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usmleasr
| Forum Guru Topics: 105 Posts: 970
good discussion guys
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bobby
| Forum Guru Topics: 136 Posts: 569
"Quinn" wrote: add to that tricyclic antidepressants, cispride, thioridazine, and believe it or not erythromycin i don't think erythromycin alone will cause QT prolungation. usually it can do that in combination with another drug with that same side effect!
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sk
| Forum Senior Topics: 23 Posts: 122
fluroquinolones also prolong the QT interval
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Quinn
| Forum Elite Topics: 63 Posts: 308
I am not sure about that....maybe just never read that. Are you sure?
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sk
| Forum Senior Topics: 23 Posts: 122
well..i read it 2 days back....sparfloxacin...kaplan lecture notes... :/
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Quinn
| Forum Elite Topics: 63 Posts: 308
Thanks sk :lol:
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sk
| Forum Senior Topics: 23 Posts: 122
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Gul
| Forum Elite Topics: 9 Posts: 259
Why is Torsades de pointes called so?
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astro
| Forum Newbie Topics: 6 Posts: 18
tosade de pointes = twisting of points.. describes the appearance of the ECG as it "twists"
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