Damage Control Surgery

DCS Fundamentals - Lethal Triad Takedown

Damage Control Surgery (DCS): Rapid, abbreviated surgery for critically injured. Goal: Control hemorrhage & contamination, restore physiology.

• Lethal Triad: Interconnected physiological derangements.

  • Acidosis: pH < 7.2
  • Hypothermia: Core temp < 35°C
  • Coagulopathy: Impaired clotting (dilution, consumption, acidosis, hypothermia effects).

• Key Indications for DCS:

  • Physiological: Refractory shock (SBP < 90 mmHg), pH < 7.2, Temp < 35°C, clinical coagulopathy.
  • Anatomical: Uncontrollable bleeding, multiple complex injuries.
  • Logistical: Prolonged surgery (> 90 min), massive transfusion (> 10 units PRBCs).

⭐ Persistent acidosis (pH < 7.2) despite adequate resuscitation is a strong indicator for initiating DCS.

DCS Phases - Stop, Revive, Repair

Damage Control Surgery (DCS) is a staged approach for critically injured patients. 📌 Mnemonic: Abbreviate, Back-to-ICU, Complete.

• Phase 1: Initial Surgery (Abbreviate / Stop)
  • Focus: Rapid control of hemorrhage (packing, shunts) & contamination (resection, diversion).
  • Temporary abdominal closure (TAC).
  • Goal: < 60-90 min.
• Phase 2: ICU Resuscitation (Back-to-ICU / Revive)
  • Goals: Correct lethal triad (acidosis, hypothermia, coagulopathy), optimize physiology.
  • Plan for re-exploration.
  • Duration: 24-48 hours.

  ⭐ Ideal re-exploration window: 24-48 hours post-initial DCS, once physiology improves.

• Phase 3: Definitive Surgery (Complete / Repair)
  • Planned re-look, definitive repairs (anastomosis, stoma).
  • Pack removal, washout.
  • Attempt primary fascial closure.
• Phase 4: Abdominal Wall Reconstruction
  • For complex defects if primary closure not achieved.
  • Staged procedures (e.g., component separation, grafts).

DCS Techniques - Quick Fix Toolkit

• Hemorrhage Control:

  • Perihepatic packing (e.g., four-quadrant for liver)

  • Pelvic packing (e.g., preperitoneal)

  • Vascular shunts (e.g., Argyle) for major vessels

  • Definitive vessel ligation (suture/clips)

  • Interventional Radiology (angiography & embolization)

• Contamination Control:
  • Bowel resection: Staple-off ends (NO primary anastomosis), consider diversion.
  • Ostomy formation (end/loop).
  • Thorough abdominal lavage (warm saline).

⭐ The 'four-quadrant packing' technique is crucial for diffuse liver hemorrhage control.

• Temporary Abdominal Closure (TAC):

  TAC Technique	Pros	Cons	Key Indication(s)
  Bogota Bag	Simple, rapid, re-look access, inexpensive	High fluid loss, heat loss, evisceration risk	Gross contamination, rapid temporary closure
  VAC	↓Edema, manages exudate, sterile barrier	Costly, specialist use, potential fistula	ACS, "open abdomen", contaminated wounds
  Wittmann Patch	Dynamic fascial traction, staged closure	Complex, multiple OR trips, skin necrosis risk	Planned staged closure, large fascial defect

DCS Resuscitation - Fueling the Fight

• Principles (DCR):
  • Permissive hypotension: Target SBP 80-90 mmHg (pre-hemorrhage control). ⚠️ Avoid in TBI.
  • Hemostatic resuscitation.
• Massive Transfusion Protocol (MTP):
  • Target ratio: PRBC:FFP:Platelets 1:1:1.
  • Consider whole blood.
• Pharmacological Adjuncts:
  • Tranexamic Acid (TXA): 1g IV load, then 1g IV over 8 hrs.
  • Calcium: Chloride/gluconate.

⭐ Early calcium administration is crucial during MTP to counteract citrate toxicity from transfused blood products.

• Coagulopathy Correction:
  • FFP, platelets, cryoprecipitate.
  • PCCs, Factor VIIa (limited role).
• Aggressive Rewarming: Maintain normothermia_

High‑Yield Points - ⚡ Biggest Takeaways

• DCS: Staged surgery for critically injured patients with physiological exhaustion.
• Aims: Control hemorrhage & contamination, temporary closure, then ICU resuscitation.
• Indications: Lethal Triad (hypothermia, acidosis, coagulopathy), inaccessible major venous injury.
• Phase 1 (OR): Abbreviated surgery, packing, temporary abdominal closure (e.g., Bogota bag).
• Phase 2 (ICU): Correct physiology, rewarm, reverse coagulopathy.
• Phase 3 (OR): Definitive repair, pack removal, formal closure, typically 24‑72 hours later.
• Goal: Prevent irreversible physiological insult by minimizing initial operative time.