Table 1.

SIR Classification system for complications by outcome [20]

Minor complications

A: No therapy; no consequence

B: Nominal therapy; no consequence (includes overnight admission for observation only)

Major complications

C: Require treatment; minor hospitalization (< 48 h)

D: Require major therapy, unplanned increase in level of care, prolonged hospitalization (> 48 h)

E: Permanent adverse sequelae

F: Death