In order to list the negative emergency laparotomies, the records of 2
4 494 laparotomies performed from 1950 to 1989 were examined. 211 nega
tive laparotomies were performed over this 40 years period: 49 for abd
ominal trauma, 42 for supposed intestinal obstruction, 44 for supposed
peritonitis or visceral infection, 46 for presumed early post-operati
ve abdominal complications and 30 for gastrointestinal bleeding. Over
these 4 decades, the emergency laparotomy rate and negative laparotomy
rate remained stable despite changes in the diagnostic tools, in the
age of the patients and the frequency of their diseases.