specificities of surgery in time of armed conflict or natural disaster christos giannou advanced...
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Specificities of Surgery inTime of Armed Conflict or
Natural Disaster
Christos Giannou
Advanced Course in the Management of Disaster Victims
Nicosia, October 2011
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
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
First AidDressing
40-60 %No surgery
10-15% Head10-12% Chest8-10% Abdomen60-70% Limbs
90% Surgery
Small woundsParaplegiaTetraplegia
Observation
10% NO Surgery
40-60 %Hospital care
WW in the field(GSW, mine, blast)
100 wounded
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
0102030405060708090
100
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
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
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
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.
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