This diagnostic accuracy study evaluated a claims-based cardiogenic shock definition against clinically adjudicated standards in two Korean clinical cohorts. The algorithm combined diagnostic codes with treatment-based criteria reflecting haemodynamic support, including mechanical circulatory support or vasoactive therapy. Among 10,156 cardiac ICU registry patients, sensitivity was 0.89, specificity 0.90, and accuracy 0.90; sensitivity was 0.95 in the 1,247-patient RESCUE registry. Nationwide application identified 207,419 patients with cardiogenic shock, with cumulative mortality of 37.9% at 12 months, 49.9% at five years, and 61.7% at ten years.
The algorithm may support cardiogenic-shock surveillance and long-term outcome research using Korean claims data. These findings concern case identification rather than treatment effectiveness.
Study limitation: The abstract reports neither uncertainty intervals for diagnostic performance nor specificity in the RESCUE validation cohort.
AI-generated from the published abstract with automated source checks. For research discovery; consult the original paper before applying findings.