Pupillary Reactivity in Children With Recurrent Abdominal Pain
Version of Record online: 19 MAY 2005
Headache: The Journal of Head and Face Pain
Volume 32, Issue 2, pages 105–107, February 1992
How to Cite
Battistella, P.A., Carrà, S., Zaninotto, M., Ruffilli, R. and Dalt, L. D. (1992), Pupillary Reactivity in Children With Recurrent Abdominal Pain. Headache: The Journal of Head and Face Pain, 32: 105–107. doi: 10.1111/j.1526-4610.1992.hed3202105.x
- Issue online: 19 MAY 2005
- Version of Record online: 19 MAY 2005
- Accepted for Publication: November 6, 1991.
- abdominal pain;
- sympathetic hypofunction;
Electronic pupillometry before and after phenylephrine instillation in the right eye was carried out in 18 children aged 10 to 16 years suffering from recurrent abdominal pain (RAP) and 15 age-matched controls. Before stimulation the pupillary diameter was almost equal in the two groups.
After phenylephrine eye drops iris dilatation was greeter in RAP patients than in controls, even though the difference was not statistically significant.
These results seem to suggest children with RAP have a chronically disturbed receptor sensitivity in their iris neuromuscular junction caused by a sympathetic hypofunction, similar to that already reported in migrainous patients.