Examkin

Question

Difficulty: Very hardSurgical and Procedural Interventions

A 2828-year-old man is brought directly to the operating room after sustaining multiple high-velocity gunshot wounds to the abdomen. Upon arrival, his blood pressure is 72/40 mm Hg72/40\text{ mm Hg} and his heart rate is 145/min145\text{/min}. Massive transfusion protocol is initiated. A midline laparotomy is performed, revealing approximately 2.5 L2.5\text{ L} of intraperitoneal blood, a shattered right liver lobe, and multiple destructive perforations of the small intestine. During the initial exploration, the anesthesiologist reports that the patient's core temperature has dropped to 33.8∘C33.8^\circ\text{C} (92.8∘F92.8^\circ\text{F}), his arterial pH is 7.117.11, and there is diffuse microvascular oozing from all dissected tissue planes. The surgical team recognizes the onset of physiological exhaustion. Arrange the following surgical and procedural interventions in the correct chronological sequence for the optimal management of this patient.

  1. 1Execution of rapid four-quadrant intra-abdominal packing to temporarily tamponade major hemorrhage
  2. 2Control of gross enteric spillage by resecting destructed bowel segments with linear staplers and leaving the bowel in discontinuity
  3. 3Application of a temporary negative-pressure abdominal closure system while leaving the fascial layers open
  4. 4Transfer to the intensive care unit for aggressive active rewarming, correction of acidemia, and reversal of coagulopathy
  5. 5Return to the operating room for definitive gastrointestinal anastomosis and formal closure of the abdominal wall

Answer

The correct chronological sequence for Damage Control Laparotomy is: 1) Rapid intra-abdominal packing, 2) Control of enteric spillage without anastomosis, 3) Temporary abdominal closure, 4) Physiologic resuscitation in the intensive care unit, and finally, 5) Return to the operating room for definitive repair.
The patient exhibits the 'lethal triad' of trauma: hypothermia (33.8∘C33.8^\circ\text{C}), acidosis (pH 7.117.11), and coagulopathy (diffuse microvascular oozing). The presence of the lethal triad mandates the immediate initiation of Damage Control Laparotomy (DCL). The fundamental principle of DCL is prioritizing physiological restoration over anatomical reconstruction. The sequence is strictly delineated into three phases. Phase I (Initial Laparotomy) focuses strictly on stopping hemorrhage (rapid packing) and halting contamination (stapling off bowel without time-consuming anastomoses), followed by rapid temporary abdominal closure to prevent abdominal compartment syndrome. Phase II (Intensive Care Unit) focuses on correcting the lethal triad via active rewarming, correction of acidemia, and massive transfusion to reverse coagulopathy. Phase III (Definitive Surgery) occurs 2424 to 4848 hours later, once the patient's physiology has normalized, allowing for safe pack removal, bowel anastomosis, and formal fascial closure.

Step-by-Step Solution

1
Execute rapid four-quadrant intra-abdominal packing.
Temporary tamponade of massive bleeding sources.
Provides immediate life-saving hemorrhage control in an exsanguinating patient.
2
Resect destructed bowel segments using linear staplers without creating an anastomosis.
Cessation of gross enteric contamination of the peritoneal cavity.
Abbreviates surgical time. Anastomoses created in a hypoperfused, acidotic state have an unacceptably high rate of ischemia and leakage.
3
Apply a temporary negative-pressure abdominal dressing (leave fascia open).
Rapid termination of the surgical procedure while protecting viscera.
Allows immediate cessation of the operation and accommodates massive bowel edema, preventing abdominal compartment syndrome.
4
Transfer the patient to the intensive care unit.
Physiological resuscitation (rewarming, blood products).
Surgical techniques cannot fix the coagulopathy of trauma (diffuse microvascular oozing); it requires medical correction of the lethal triad.
5
Return to the operating room 2424 to 4848 hours later.
Definitive surgical repair.
Once the patient is warm, euvolemic, and coagulopathic-free, it is safe to perform time-consuming anastomoses and formally close the abdominal wall.

Key Concept

Damage Control Laparotomy for the lethal triad of trauma (hypothermia, acidosis, coagulopathy)
Rate this question

Topics

Surgical and Procedural Interventions

More questions from this topic