1.   Fasting volume and residual postprandial volume were measured as characteristic of gall bladder motility.

2.   Decreased sphincter of oddi function might also account for increased fasting volume.

3.   Therefore, increased fasting volumes in patients with acromegaly might be explained by their large body size.

4.   Low plasma octreotide concentration and increased fasting volume may explain improved gall bladder contraction.