Severe Trauma
What is Severe Trauma?
Severe trauma is a serious mechanical injury that is life-threatening. It includes several clinical entities:
- Polytrauma: multiple traumatic injuries (≥ 2 body regions) with an Injury Severity Score (ISS) > 15.
- Severe traumatic brain injury (severe TBI): Glasgow Coma Scale ≤ 8 for ≥ 6 hours.
- Severe thoracic trauma (flail chest, massive hemothorax, bilateral pulmonary contusion).
- Severe abdominal trauma (laceration of spleen, liver, kidney, pancreas with hemoperitoneum).
- Unstable pelvic trauma (open fracture or pelvic hemorrhage).
- Massive hemorrhage (≥ 10 red blood cell units in 24h or need for protocolized massive transfusion).
- Severe burns (burned surface > 20% in adults, > 10% in children, airway burns).
- Penetrating trauma (stab wound, gunshot) with visceral injury.
Severe trauma is the leading cause of death in people under 45 worldwide (road accidents, falls from height, work accidents, assaults). In Tunisia, our university hospitals and private clinics are organized as Trauma Centers according to the ATLS (Advanced Trauma Life Support) model of the American College of Surgeons.
What are the Causes and Frequent Severe Injuries?
Main causes:
- Road traffic accidents (RTA): 55-65% (pedestrians, two-wheelers, motorcycles, vehicles).
- Falls from height: 15-25% (work accidents, domestic accidents, suicide attempts).
- Work accidents: 10-15% (machinery, falls, crushing).
- Assaults with knives or firearms: 5-10%.
- Severe domestic accidents: burns, drowning, electrocution.
Severe injuries by anatomical region:
- Skull and brain: acute subdural hematoma, epidural hematoma, multiple cerebral contusions, diffuse axonal injury, depressed skull fracture.
- Chest: flail chest (≥ 3 ribs fractured in 2 places), massive hemothorax (> 1500 mL), tension pneumothorax, bilateral pulmonary contusion, aortic rupture, cardiac wound, tracheobronchial rupture.
- Abdomen: spleen laceration (grade IV-V), liver laceration (grade IV-V), kidney rupture, pancreatic injury, bowel perforation, retroperitoneal hemorrhage.
- Pelvis: unstable Tile type C fracture (rotational and vertical), pelvic hemorrhage.
- Spine: vertebral fracture-dislocation with spinal cord injury (paraplegia, quadriplegia).
- Limbs: grade III open fracture (Gustilo), bilateral femoral fracture, traumatic amputation, compartment syndrome, vascular injury.
What are the Signs of Severe Trauma?
Severe trauma presents as traumatic shock (hypovolemic, cardiogenic, mixed, or neurogenic):
- Arterial hypotension (SBP < 90 mmHg, MAP < 65 mmHg) or signs of compensated shock (tachycardia > 120/min, mottling, cold extremities, capillary refill time > 3 sec).
- Altered consciousness: Glasgow Coma Scale ≤ 13 (moderate to severe), confusion, agitation, coma.
- Respiratory distress: tachypnea > 30/min, desaturation SpO2 < 90%, asymmetrical breath sounds (hemothorax, pneumothorax), cyanosis.
- Visible external hemorrhage (wound, hemothorax, suspected hemoperitoneum) or occult (pelvis, thigh).
- Open fractures or obvious deformities of limbs or pelvis.
- Intense pain, agitation, anxiety.
Any patient suspected of severe trauma must be managed immediately according to the ATLS protocol.
How is the Management of Severe Trauma in Tunisia?
Management is structured according to international guidelines (ATLS, damage control) and relies on a 24/7 multidisciplinary team.
Pre-hospital Phase (Emergency Services, EMS, Mobile ICU)
- ABCDE protocol:
- A (Airway): airway control, early intubation if GCS ≤ 8, obstruction, airway burns.
- B (Breathing): oxygen therapy (SpO2 ≥ 90-95%), decompression of tension pneumothorax (14G needle).
- C (Circulation): 2 peripheral IV lines 16-18G, fluid resuscitation (crystalloids), control of external hemorrhage (compression, tourniquet), norepinephrine if refractory shock.
- D (Disability): neurological assessment (Glasgow, pupils, motor function).
- E (Exposure): complete undressing, search for other injuries, hypothermia prevention (warming blanket).
- Strict spinal immobilization (rigid cervical collar, long spine board, straps).
- Transport to a Level I Trauma Center (university hospital) or Level II (equipped private clinic with 24/7 neurosurgery, traumatology, intensive care).
Initial Hospital Phase (Trauma Reception, Code Red)
Ultra-rapid imaging workup:
- Whole Body CT: acquisition of head, face, cervical spine, chest, abdomen, pelvis (± limbs). Performed in < 10-15 minutes.
- FAST ultrasound: search for hemoperitoneum, hemopericardium, hemothorax. Performable in < 5 minutes.
- Standard X-rays: chest, pelvis (if CT unavailable).
Emergency laboratory tests:
CBC, platelets, PT/PTT, blood group/Rh/antibody screen, β-HCG (female), electrolytes, creatinine, blood gas (pH, lactate, bicarbonate), blood alcohol, toxicology screen.
Damage Control Resuscitation (DCR) and Damage Control Surgery (DCS)
For any patient in severe hemorrhagic shock or hemodynamically unstable:
Damage Control Resuscitation (DCR):
- Permissive fluid resuscitation (limited crystalloids, early transfusion).
- Protocolized massive transfusion (1:1:1 ratio: red blood cells / fresh frozen plasma / platelets).
- Tranexamic acid (Exacyl®): 1g IV ≤ 3 hours post-trauma (all hemorrhages).
- Aggressive correction of acidosis (bicarbonate if pH < 7.15-7.20) and hypothermia (< 35°C).
- IV calcium to compensate for chelation from transfusions.
Damage Control Surgery (DCS):
- Shortened surgical procedure (< 60-90 minutes): hemorrhage control (ligation, packing, clamping), control of digestive contamination (rapid suture, stoma), drainage of spaces (thoracic, peritoneal).
- Systematic second look at 24-48 hours: definitive repairs, pack removal, closure.
- Damage control laparotomy or thoracotomy.
Specific Management of Severe Trauma by Specialty
Severe Traumatic Brain Injury (severe TBI):
- Hematoma evacuation (subdural, epidural).
- Intracranial pressure (ICP) monitoring (if GCS ≤ 8 and abnormal CT).
- Decompressive craniectomy (refractory ICH).
Severe Thoracic Trauma:
- Immediate chest tube (hemothorax > 300-500 mL, pneumothorax).
- Emergency thoracotomy (hemorrhage > 1500 mL, cardiac wound, aortic rupture).
- Rib osteosynthesis (flail chest).
Severe Abdominal Trauma:
- Emergency laparotomy (splenectomy, hepatorrhaphy, packing, bowel repair).
- Radiological embolization (liver, spleen, kidney) if hemodynamically stable.
- Damage control laparotomy (open abdomen).
Unstable Pelvic Trauma:
- Immediate pelvic binder (external stabilization).
- External pelvic fixator (surgery).
- Embolization of pelvic arteries (interventional radiology).
Limb and Spine Trauma:
- Temporary external fixator for open fractures or femoral fractures.
- Definitive osteosynthesis delayed (after day 2-7).
- Emergency spinal fixation (posterior or anterior) if unstable injury.
Trauma Intensive Care Management
After the surgical phase (or immediately if non-surgical management), the patient is transferred to the multidisciplinary or trauma intensive care unit:
- Continuous hemodynamic monitoring: monitor, oximetry, invasive arterial pressure (radial/femoral catheter), CVP, sometimes cardiac output (PiCCO, Swan-Ganz).
- Lung-protective mechanical ventilation: low tidal volume (6-8 mL/kg), adapted PEEP, prone positioning if ARDS.
- Iterative transfusions (red blood cells, platelets, plasma) based on labs.
- Correction of post-traumatic coagulopathy (DIC).
- Early enteral nutrition (nasogastric tube, target 20-25 kcal/kg/day).
- Pressure ulcer prevention (alternating pressure mattress, position changes), DVT prevention (LMWH after 24-48h, compression stockings).
- Adapted sedation-analgesia (propofol, midazolam, fentanyl, morphine).
What are the Risks and Complications of Severe Trauma?
Complications are frequent, severe, and potentially fatal:
- Lethal triad of severe trauma: metabolic acidosis (pH < 7.20), hypothermia (< 34°C), coagulopathy (DIC).
- Massive hemorrhage (DIC, multiorgan failure).
- Post-traumatic Acute Respiratory Distress Syndrome (ARDS) (20-40%).
- Sepsis and multiple organ dysfunction syndrome (MODS) (late cause of death).
- Compartment syndrome (abdominal, limbs) requiring decompressive fasciotomy.
- Fat embolism (long bone, pelvic fractures).
- Severe nosocomial infections: VAP (ventilator-associated pneumonia), cerebral abscess, secondary peritonitis, osteoarticular infection, sepsis.
- Pressure ulcers, deep vein thrombosis, pulmonary embolism.
- Permanent neurological sequelae: hemiplegia, quadriplegia, cognitive disorders, vegetative state.
- Post-traumatic stress disorder (PTSD) (30-50% of survivors).
Prognosis of Severe Trauma
Mortality from severe trauma has decreased significantly with organized care (ATLS, damage control):
- Severe trauma (polytrauma, mean ISS 25-40): mortality 10-20% (expert centers).
- Isolated severe traumatic brain injury: mortality 30-40% (adult).
- Severe hemorrhagic shock (massive transfusion): mortality 30-50%.
- Severe burns (> 40% of body surface area): mortality 20-40% (specialized centers).
Unfavorable prognostic factors: age > 65 years, ISS > 40, GCS ≤ 8, initial hypotension, coagulopathy, hypothermia, severe acidosis.
What to Do After Severe Trauma? Intensive Multidisciplinary Rehabilitation
Discharge from intensive care (average duration 14 to 60 days, sometimes longer) marks the beginning of long and intensive rehabilitation:
- Physical and respiratory therapy: gait restoration, muscle strengthening (ICU-acquired weakness), exercise retraining, bronchial clearance, contracture prevention.
- Occupational therapy: relearning activities of daily living (dressing, washing, eating), home adaptation (wheelchair, medical bed, ramps, grab bars).
- Speech therapy: language rehabilitation (post-traumatic aphasia), swallowing rehabilitation (aspiration risk), cognitive-linguistic disorders.
- Neuropsychology: intensive cognitive rehabilitation (memory, attention, executive functions, planning, inhibition).
- Psychologist / Psychiatrist: management of post-traumatic stress disorder (PTSD), anxiety, depression, behavioral disorders.
- Social worker: assistance with returning to work, disability recognition (disability card), financial aid applications, home adaptation, referral to appropriate facilities.
- Surgical and orthopedic follow-up: consultations at 1, 3, 6, 12 months, control X-rays, treatment of sequelae (pseudarthrosis, joint stiffness, chronic infection).
- Neurological and neurosurgical follow-up: control MRI, EEG (post-traumatic epilepsy), cranioplasty (bone flap replacement).
Why Choose Tunisia for the Management of Severe Trauma?
Tunisia has traumatologists, neurosurgeons, orthopedic surgeons, and intensivists specializing in severe trauma patients, trained in the best European centers (Paris, Lyon, Marseille, Bordeaux, Montpellier, Geneva, Brussels). University hospitals and certain private clinics are organized as Trauma Centers according to the ATLS model of the American College of Surgeons (mandatory ATLS training). Equipment is modern: 128-256 slice whole-body CT (Whole Body CT < 15 min), dedicated trauma operating rooms, full-service ICUs with invasive monitoring, interventional radiology (embolization).
Advantages of Tunisia:
- Strict adherence to ATLS and damage control guidelines (ABCDE, Whole Body CT, protocolized massive transfusion).
- Rapid intervention times: emergency laparotomy/thoracotomy < 60 minutes, intracranial hematoma evacuation < 2-4 hours, external fixation of fractures < 6-12 hours.
- 24/7 availability of the multidisciplinary team: emergency physicians, traumatologists, neurosurgeons, orthopedic surgeons, intensivists, interventional radiologists, anesthesiologists.
- All-inclusive packages: our packages include ICU hospitalization, whole-body CT scan, surgical procedures (damage control, neurosurgery, orthopedics), massive transfusion (red blood cells, plasma, platelets), mechanical ventilation, hemofiltration if necessary, and the post-trauma rehabilitation program (physical therapy, speech therapy, neuropsychology).
- Management of chronic sequelae: neurological and orthopedic rehabilitation centers available for extended stays (3-6 months) at affordable rates.