Table 2 Rui Jin Hospital classification of complications

Minor

Infection: Superficial wound infection, deep infection*, chest infection*, urinary infection, septicemia, pyrexia of unknown origin*

Miscellaneous: Superficial wound dehiscence, wound hemorrhage, impaired renal function*, deep venous thrombosis *, Hypotension.

Moderate

Infection: Deep infection^†, chest infection^†, pyrexia of unknown origin^†.

Miscellaneous: deep wound dehiscence, impaired renal function ^†, deep venous thrombosis ^†

Innominate^†

Severe

Systemic: Cardiac failure, Respiratory failure, pulmonary embolus, Hypotension^‡. Death

Surgical: Deep hemorrhage, deep infection^‡, anastomotic leak

Innominate: complications with postop stay >30 days