Table 1

Effect of glyeryl trinitrate (GTN) on fasting gall bladder volume

Volume (ml)
Time (min) Placebo GTN
0100 (0)100 (0)
596.4 (5.1)105.9 (4.7)
1098.0 (5.0)114.4 (5.0)1-150
1598.9 (2.5)111.7 (5.2)
  • Results are expressed as mean (SEM).

  • 1-150 p = 0.039 (Wilcoxon signed rank test) v volume at time 0 min.