Damage-Control Laparotomy in a Hypotensive Patient with a Gunshot Wound
A 24-year-old man arrives after a gunshot wound to the left lower quadrant. He is tachycardic at 128, systolic BP 84, and unresponsive to 1 L crystalloid. FAST shows free fluid. He is taken to the operating room. At laparotomy there is a through-and-through injury to the sigmoid colon with gross fecal contamination, a bleeding mesenteric vessel, and ongoing coagulopathy with a temperature of 35.2°C. The surgeon must decide between resection with primary anastomosis, resection with stoma, or damage-control laparotomy with temporary closure. The patient's family asks whether 'the bag' is permanent.
1. What are the decision criteria at the index operation, and how does the 'lethal triad' influence the choice?
Read the worked answer
The lethal triad is hypothermia, acidosis, and coagulopathy. This patient has hypothermia (35.2°C), hypotension, and ongoing coagulopathy - a damage-control profile.
Decision criteria:
- Hemodynamic stability, contamination, and physiology determine anastomotic safety. Gross fecal contamination plus shock plus coagulopathy makes a primary anastomosis high-risk.
- Options:
- Resection with primary anastomosis: acceptable in a stable patient with limited contamination.
- Resection with end colostomy (Hartmann's): the standard damage-control choice here.
- Damage-control laparotomy with temporary abdominal closure and staged return: appropriate when physiology is severely deranged, allowing ICU resuscitation before definitive reconstruction.
Given the triad, the safest path is resection, control of hemorrhage and contamination, and either a stoma or temporary closure with planned re-look. Primary anastomosis is relatively contraindicated in this physiology.
2. How do you counsel the family about stoma permanence, and what determines whether it can be reversed?
Read the worked answer
Counsel that the stoma is a life-saving measure in an unstable patient and is often temporary, but reversal depends on:
- Recovery of physiology and nutrition.
- Adequate distal colon and rectal remnant.
- Absence of pelvic sepsis or stricture.
- Patient preference and continence.
Reversal (colostomy takedown with anastomosis) is typically considered after several months. Some patients, especially with distal rectal injury or poor sphincter function, may keep it permanently. Frame it honestly: 'often reversible, not guaranteed.'
Document the discussion and involve stoma therapy early.