An analysis of electronic records from admissions to four ICU’s in 2001-2008 showed that the 1,876 patients who were on an SSRI or SNRI were 73% more likely to die in the hospital than the 8,692 who were not. The research was presented at the international conference of the American Thoracic Society in San Francisco. Patients who had acute coronary syndrome or had undergone cardiac surgery were more than twice as likely to die if they were on an SSRI/SNRI, said lead researcher Dr. Katherine M. Berg, a fellow at Massachusetts General Hospital and Harvard University.