AAST 5 grades for SBO

Q: AAST grading criteria for small bowel obstruction divide patients via following of the two criteria? (select one)

A) Clinical & operative 

B) Radiographic & operative 

C) Clinical & radiographic

Answer; B

American Association for the Surgery of Trauma (AAST) has established five grades for small bowel obstruction (SBO).

Grade I - Partial SBO

Grade II - Complete SBO; bowel viable and not compromised

Grade III - Complete SBO with compromised but viable bowel

Grade IV - Complete SBO with nonviable bowel or perforation with localized spillage

Grade V - SB perforation with diffuse peritoneal contamination

These grades can be established either via radiographic criteria or operative criteria

#trauma

Reference:

Hernandez MC, Haddad NN, Cullinane DC, et al. The American Association for the Surgery of Trauma Severity Grade is valid and generalizable in adhesive small bowel obstruction. J Trauma Acute Care Surg 2018; 84:372. DOI: 10.1097/TA.0000000000001736. Copyright © 2018 American Association for the Surgery of Trauma. Reproduced with permission from Wolters Kluwer Health.