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Intraoperative causes
Complications following surgery
4 of the most common perioperative complications encountered by both general surgeons and surgical specialists:
The perioperative mortality rate (POMR) is used as an indicator of access to and safety of surgery and anesthesia. POMR should be measured at two time periods: death on the day of surgery and death before discharge from hospital or within 30 days of the procedure, whichever is sooner. The rate should be expressed as the number of deaths (numerator) over the number of procedures (denominator). The option of before-discharge or 30 days is practical for those low- to middle-income countries where postdischarge follow-up is likely to be incomplete, but it allows those that currently can report 30-day mortality rates to continue to do so. Clinical interpretation of POMR at a hospital or health service level will be facilitated by risk stratification using age, urgency (elective and emergency), procedure/procedure group, and the American Society of Anesthesiologists grade.
Even as patients' medical conditions have gotten more complex and surgeries more complicated, perioperative mortality (death from any cause within 48 hours after surgery) has significantly declined over the last 50 years, with the greatest improvement seen in developed countries vs developing countries, according to a global meta-analysis.
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