Fatal intestinal obstruction in the mentally handicapped.

In a retrospective study of hospital records over a 50-year period, data on 32 patients who died as a result of intestinal obstruction are presented and compared with comparison groups and national mortality statistics. There was a higher incidence and lower mean age at death of fatal intestinal obstruction compared with the total national population. The mean age at death significantly increased over the study period. Intestinal volvulus was a common cause of obstruction particularly in those with cerebral palsy. There was a high prevalence of chronic constipation and megacolon. Foreign-body obstruction was de facto related to pica, but overall, there was a low prevalence of pica. Overall, mean IQ was low, but only significantly so in the male subjects. The length of acute illness was short; in 22 patients it was less than 24 h. Vomiting and abdominal distension were often absent and abdominal signs were recorded only in five patients. Pain or distress was recorded in only nine patients. Only eight patients were correctly diagnosed before death and only two had surgery. The results suggest that fatal intestinal obstruction is more common in mentally handicapped people and chronic constipation and megacolon are risk factors. Intestinal obstruction in mentally handicapped people can present late and with deceptively minimal signs and symptoms.