Specificities of Surgery in Time of Armed Conflict or Natural Disaster Christos Giannou Advanced Course in the Management of Disaster Victims Nicosia, October 2011 Understand what you are getting into BEFORE you go. Natural disaster, accident, isolated explosion One-off event: surprise, warning War Successive events: NO surprise, political build-up 1. Rights and obligations of Medical Personnel 2. Specific epidemiology of war (constant) / disaster (variable) 3. Predominance of emergency surgery (especially during early tactical field care) 4. Surgery within a limited technical environment 5. Limits of surgery: post-operative nursing + anaesthesia 6. Surgery in a hostile, violent environment 7. Mass casualties involving the principles of triage 8. Surgery and triage in successive echelons (delayed evacuation) 9. Specific wound pathology, qualitatively different from civilian wounds: ballistics & blast; all are dirty and contaminated 10. Specific techniques appropriate to the context and pathology: simplicity, security, speed 11. Importance of disease: disease is four times more common than trauma among soldiers; disaster public health approach 1. Rights and obligations of Medical Personnel 2. Specific epidemiology of war (constant) / disaster (variable) 3. Predominance of emergency surgery (especially during early tactical field care) 4. Surgery within a limited technical environment 5. Limits of surgery: post-operative nursing + anaesthesia 6. Surgery in a hostile, violent environment Medical Ethics Oath of Hippocrates: International Code of Medical Ethics: WMA 1949 London, 2006 Pilanesberg S. Africa International Humanitarian Law: laws of war Geneva Conventions 1949 Additional Protocol I 1977 1. Rights and obligations of International Humanitarian Law: laws of war 2. Specific epidemiology of war (constant) / disaster (variable) 3. Predominance of emergency surgery 4. Surgery within a limited technical environment 5. Limits of surgery: post-operative nursing + anaesthesia 6. Surgery in a hostile, violent environment War wounded in the field: epidemiology WW in the field (GSW, mine, blast) 100 wounded 40-60 % No surgery First Aid Dressing 40-60 % Hospital care 90% Surgery 10-15% Head 10-12% Chest 8-10% Abdomen 60-70% Limbs 10% NO Surgery Small wounds Paraplegia Tetraplegia Observation War wounded: causes of death Severe injury (brain, major vessels) Haemorrhage: peripheral Airway, breathing Coagulopathy, acidosis, hypothermia / multiple system failure Natural disaster: context Earthquake demographic density type of construction access: rural or urban Tsunami Storm / flooding Neighbourhood nuclear plant Epidemiology of disaster wounded: collapse of 8-storey building China 80% of entrapped died immediately or early 10% survived with minor injuries 10% severe injuries of which 70% developed crush syndrome Earthquake Survival Rate: % survivors still alive without extraction 100 90 80 70 60 50 40 30 20 10 0 0.5h 24h 48h 72h 96h 120h Earthquake: causes of death Immediate: severe crush of head or thorax (organ damage + suffocation) Early: ABC Delayed: dehydration, hypothermia Late: crush syndrome (acute renal failure), sepsis, multiple organ failure 1. Rights and obligations of International Humanitarian Law: laws of war 2. Specific epidemiology of war (constant) / disaster (variable) 3. Predominance of emergency surgery 4. Surgery within a limited technical environment 5. Limits of surgery: post-operative nursing + anaesthesia 6. Surgery in a hostile, violent environment Specificities of austere environments Damaged infrastructure (water, electricity) Lack of experienced human resources: competency, fatigue, fear Lack of equipment and supplies: appropriate Lack of blood for transfusion "Humanitarian circus" and military-civilian cooperation Culture shock Norwegian RC field hospital: ERU post-tsunami Banda Aceh Field Surgical Team Darfur Recycling of a prison Somali Red Crescent Society: No State Shatilla refugee camp 1987 Understanding the limits simplicity of diagnostic means available laboratory: Hb/Hct, blood grouping & screening anaesthesia (local, regional, ketamine) availability of blood (no components): autotransfusion patient monitoring (BP, P, O2 saturation) post-operative nursing care Heroic surgery will never replace good surgery. Clinical skills • Lucky if you have X-rays • Chest tube & laparotomy on clinical basis alone (no DPL) • No place for CPR, ER thoracotomy • Limited- or non- use of endotracheal intubation, no mechanical ventilation • Proper indications and use of damage control techniques • Will you see your patient again? • Category IV? supportive treatment Always plan for alternatives: infrastructure equipment communications supplies, logistics human resources 1. Rights and obligations of International Humanitarian Law: laws of war 2. Specific epidemiology of war (constant) / disaster (variable) 3. Predominance of emergency surgery 4. Surgery within a limited technical environment 5. Limits of surgery: post-operative nursing + anaesthesia 6. Surgery in a hostile, violent environment Hostile, violent environment 7. Mass casualties involving the principles of triage 8. Surgery and triage in successive echelons (delayed evacuation) 9. Specific wound pathology, qualitatively different from civilian wounds: ballistics & blast; all are dirty and contaminated 10. Specific techniques appropriate to the context and pathology: simplicity, security, speed 11. Importance of disease: disease is four times more common than trauma among soldiers; disaster public health approach Triage Everyday work MCI MAD 7. Mass casualties involving the principles of triage 8. Surgery and triage in successive echelons (delayed evacuation) 9. Specific wound pathology, qualitatively different from civilian wounds: ballistics & blast; all are dirty and contaminated 10. Specific techniques appropriate to the context and pathology: simplicity, security, speed 11. Importance of disease: disease is four times more common than trauma among soldiers; disaster public health approach Old lessons for new surgeons War / disaster wounds are dirty and contaminated, from the moment of injury. The rules of septic surgery apply. Principles of septic surgery The best antibiotic is good surgery. 7. Mass casualties involving the principles of triage 8. Surgery and triage in successive echelons (delayed evacuation) 9. Specific wound pathology, qualitatively different from civilian wounds: ballistics & blast; all are dirty and contaminated 10. Specific techniques appropriate to the context and pathology: simplicity, security, speed 11. Importance of disease: disease is four times more common than trauma among soldiers; disaster public health approach