Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Classifications of open abdomens (OA).
| Grade 1A | Clean OA without adherence between bowel and abdominal wall or fixity (lateralization of the abdominal wall) |
| Grade 1B | Contaminated OA without adherence/ fixity |
| Grade 2A | Clean OA developing adherence/ fixity |
| Grade 2B | Contaminated OA developing adherence/ fixity |
| Grade 3 | OA complicated by fistula formation |
| Grade 4 | Frozen OA with adherent/ fixed bowel, unable to close surgically, with or without fistula |
