Low risk (must meet ALL criteria in this column ) | Intermediate risk (any 1 criterion in this column) | High risk (any 1 criterion in this column) | Prohibitive risk (any 1 criterion in this column) | |
STS PROM* | <4% AND | 4 to 8% OR | >8% OR | Predicted risk with surgery of death or major morbidity (all-cause) >50% at 1 y OR |
Frailty¶ | None AND | 1 Index (mild) OR | ≥2 Indices (moderate to severe) OR | |
Major organ system compromise not to be improved postoperativelyΔ | None AND | 1 Organ system OR | No more than 2 organ systems OR | ≥3 Organ systems OR |
Procedure-specific impediment◊ | None | Possible procedure-specific impediment | Possible procedure-specific impediment | Severe procedure-specific impediment |
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