Assertion: interval prolongation | /r/HasProperty | 550 msec
Facets:
Source sentences:
text: In both DIAMOND studies, patients were randomized to 500 mcg BID of Tikosyn, but this was reduced to 250 mcg BID if calculated creatinine clearance was 40–60 mL/min, if patients had AF, or if QT interval prolongation (>550 msec or >20% increase from baseline) occurred after dosing.