Key Points
- Assess the clinical factors influencing short- and long-term postoperative mortality and evaluate the adequacy of standard perioperative quality metrics.
- Analyzed findings from the Swedish Surgical Outcome Study (SweSOS), an observational study evaluating 30-day and 1-year surgical mortality.
- Evaluated patient-level predictors including age, American Society of Anesthesiologists (ASA) physical status, and procedural urgency.
- Examined structural healthcare factors such as intensive care unit (ICU) capacity, postanaesthesia care unit (PACU) utilization, and intermediate care units.
- Advanced age, elevated ASA status, pre-existing comorbidities, and nonelective surgical procedures are strongly linked to elevated short- and long-term postoperative mortality.
- High standards of acute in-hospital care improve 30-day survival rates, whereas long-term mortality is primarily driven by baseline physiological frailty and chronic disease progression.
- Defining critical care utilization to include PACU stays greater than 12 hours alongside standard ICU admissions yielded a 10.2% critical care admission rate, highlighting the efficacy of intermediate care.
Structured PICO
PPopulationPatients undergoing elective or emergency surgery in Sweden (median age 57 years, 69% ASA I + II)
IInterventionPerioperative care and surgery
OOutcome30-day and 1-year mortalityhard clinical
Perioperative mortality reporting is important for quality assurance, but age, comorbidities, and surgical urgency are strong drivers of outcomes, highlighting the need for broader outcome measures beyond just mortality.
Limitations
- Mortality has limitations as a sole outcome measure
- Discharge bias from limiting reporting to 30 days
- Case-mix impact on mortality rates