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Pearl · 04 of 05

Unexplained tachycardia after a colorectal anastomosis should prompt a leak search

Treat persistent unexplained tachycardia after an anastomosis as a possible leak until shown otherwise.

Persistent tachycardia, fever, rising abdominal pain, ileus or a falling urine output in the days after a bowel anastomosis can precede overt peritonitis. Treat the trend, not a single number: reassess the patient, check inflammatory markers and lactate, and consider early imaging or return to theatre per your unit's protocol.

Senior review early is cheaper than late recognition.

  • Look for a trend in heart rate, temperature and pain, not one reading.
  • Examine the abdomen and review drain output if present.
  • Send bloods including CRP and lactate and consider CT.
  • Involve the senior surgeon early.

Why it matters

Delayed recognition of leak is a major driver of morbidity after colorectal surgery.

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