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Fatal pulmonary embolism associated with surgery. An autopsy study.

The records of all autopsies performed at two major Danish hospitals in 1986 were reviewed in order to analyze cases of fatal pulmonary embolism. There were 2,609 hospital deaths and 1,603 post mortem examinations. Pulmonary embolism was the primary cause of 74 deaths, 16 of which were postoperative. The median age of these ten men and six women was 72 years. In nine of the 16 cases the prognosis would have been favorable had embolism not occurred. Only three of the 16 had received thromboembolic prophylaxis. Four of the deaths from embolism occurred less than 24 hours after surgery, five within 7 days and seven between postoperative days 7 and 30. The estimated incidence of fatal pulmonary embolism following surgery was 1.2-1.3 per thousand.