Key result
The SCAI-2022 classification provides a more elaborate staging framework for heart failure-related cardiogenic shock compared to the CSWG-SCAI system by emphasizing renal dysfunction and congestion.
Highlights the differences and lack of uniform adoption between the SCAI-2022 and CSWG-SCAI shock classification systems in heart failure-related cardiogenic shock.
The recent 2025 Society for Cardiovascular Angiography and Interventions (SCAI) expert consensus statement endorses routine application of SCAI shock staging across the spectrum of CS, including heart failure-related CS (HF-CS) (1). However, in the contemporary literature, both the updated 2022 SCAI classification (SCAI-2022) (2) and the Cardiogenic Shock Working Group SCAI (3) continue to be used across studies, reflecting a lack of uniform adoption of a single staging framework. Compared with the CSWG-SCAI system, the SCAI-2022 classification is more elaborate, with emphasis on renal dysfunction, congestion, and dynamic treatment response alongside traditional shock- and therapy parameters.
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Ris et al. (2026) conducted an editorial in Heart Failure-related Cardiogenic Shock. SCAI-2022 classification vs. CSWG-SCAI system was evaluated. The SCAI-2022 classification provides a more elaborate staging framework for heart failure-related cardiogenic shock compared to the CSWG-SCAI system by emphasizing renal dysfunction and congestion.
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