Inclusion Criteria:  Adults (18 years or over) undergoing emergency laparotomy or laparoscopy for following abdominal pathology:  Intestinal obstruction Perforated viscus Intestinal ischemia Intraabdominal bleeding  The above conditions include both primary surgery and re-operation after elective surgery.  Exclusion Criteria:  Patients undergoing  Appendicectomies Negative laparoscopies/laparotomies Cholecystectomies Simple herniotomies following incarceration without bowel resection Reoperation due to fascial separation with no other abdominal pathology identified Internal hernia after Roux-en-Y gastric bypass surgery Subacute surgery (surgery planned within 48 h) for inflammatory bowel diseases Subacute colorectal cancer surgery Patients with missing hsTnT values on both postoperative day 1 and 2