"If an anastomotic leak occurs within 30 days post-operation, it is termed an "early" anastomotic leak, while those that occur after 30 days are termed a "late" anastomotic leak 5."
"The incidence of anastomotic leakage varies from 1% to 19% and is more common after rectal cancer surgery 1,4. The median development of generalised leak is 4 days postoperatively, whilst a contained leak develops at 15 days post-operation 4."
"Free leakage can present with abdominal pain, fever, leucocytosis, hypotension, altered mental status 4, and/or faecal discharge through a surgical drain 5. The clinical features of contained leakage are non-specific, e.g. perianal pain, scrotal swelling, intestinal obstruction, perirectal, rectovaginal or rectovesical fistula 4, and/or pelvic abscess near the anastomosis 5."
"Free leakage can present with abdominal pain, fever, leucocytosis, hypotension, altered mental status 4, and/or faecal discharge through a surgical drain 5. The clinical features of contained leakage are non-specific, e.g. perianal pain, scrotal swelling, intestinal obstruction, perirectal, rectovaginal or rectovesical fistula 4, and/or pelvic abscess near the anastomosis 5."