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11/04/2017

Tourniquet: Les israéliens, pour +++

Point of injury tourniquet application during Operation Protective Edge - what do we learn?

 
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Un point récent sur l'emploi du garrot dans un contexte de combat mixte zone urbaine mais aussi hors de la ville. Disons immédiatement que ce travaille CONFIRME l'intérêt du garrot, qui doit pouvoir être rapidement converti. Le contexte de pose du garrot est  avant tout tactique (exposition au feu, plusieurs blessés, nuit complète). L' efficacité du premier garrot est de 70%. Près d'1/4 nécessitent au moins 2 garrots et encore 1/4 sont convertis pendant la medevac. Sur 13% des blessés sont réalisés des gestes de sauvetage: décompression thoracique /Intubation ou Cricothyrotomie. Ce document exprime parfaitement l'importance de la maîtrise et partant de l'entraînement à la réalisation des gestes de la procédure du sauvetage au combat.
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BACKGROUND:

Hemorrhage is a leading cause of preventable death on the battlefield. Timely tourniquet application to massively bleeding extremity wounds is critical for casualty survival albeit with reported adverse effects to extremity integrity. The aim of this study was to describe the immediate and short term outcomes of point of injury (POI) tourniquet applications during 'Operation Protective Edge' (OPE).

METHODS:

A case series study regarding tourniquet application at the POI during OPE was collected. The data gathered included reports by medical providers at the POI, aerial and land evacuation vehicles, and receiving hospitals. Variables collected included, the number of tourniquet applications, caregiver level, tourniquet type, limb characters, tourniquet effectiveness, in-hospital procedures, complications and short term limb outcome.

RESULTS:

During OPE, the Israeli Defense Forces Medical Corps (IDF-MC) treated 704 casualties. Out of these, 90 casualties were treated with 119 tourniquets out of which 79 survived. Penetrating trauma was the mechanism of injury in 97.8% (88/90) of the casualties. Injuries sustained from Improvised explosive devices (IED) and shrapnel were related to the use of more than one tourniquet per casualty and per limb (p=0.034). The success rate of the first tourniquet was reported to be 70% (84/119), regardless of caregiver level (P=0.56), tourniquet type (P=0.16) or limb characters (p=0.48).  two of the conversions failed and thus a new tourniquet was applied. Fasciotomy was performed on 8 casualties (a single limb in each). Vascular injury was presumed to be the indication for fasciotomy in three of these cases, in the other five limbs (6%, 5/85) no vascular involvement was discovered during surgery and the fasciotomy is suspected as tourniquet related. 7%) 6/85) suffered from neurological sequela that could not be explained by their primary injury. Total complication rate was 11.7% (10/85) (one patient had both fasciotomy and neural complication without vascular injury)

CONCLUSION:

Tourniquet use on the battlefield is a simple method of eliminating preventable death, we believe that clinical practice guidelines should promote liberal use of tourniquets by trained combatants and medical personnel with abilities to convert to direct pressure hemorrhage control when possible since an unjustified tourniquet application risks low rates minor morbidity whereas a justifiable tourniquet not applied may be lethal.

| Tags : tourniquet

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