Table 1.

QTc Before and After Cisapride Treatment

Group
A
Group
B
Number of infants6040
Age in mo
 Mean (SD)4.8 (1.1)5.8 (1.0)
 Range3–73.5–7
QTc interval in milliseconds
 Before initiation of treatment
  Mean (SD)390 (18)
  Number with QTc >440 0
 After initiation of treatment
  Mean (SD)400 (20)403 (27)
  Number with QTc >440 1 1
  Number with increase in QTc >1030
Number with arrhythmia0 0
  • SD indicates standard deviation; QTc, corrected QT interval.