J Trauma
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Internal carotid arterial occlusion, being a rare occurrence following whiplash injury, is frequently missed. We report an unusual case of a 41-year-old woman driver who was involved in a head-on collision with a truck. ⋯ Subsequent investigations showed a right parietal lobe infarct and bilateral internal carotid arterial dissection. We conclude that acute whiplash injury can result in bilateral internal carotid arterial dissection and that clinicians treating these patients should be aware of this complication.
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The feasibility of using Doppler radar to obtain more accurate measurements of velocity and yaw angle of bullets was investigated. Anesthetized pigs were shot at a range of 9-10 meters, and velocity measurements were obtained using Doppler radar and photocells. The data from the two types of equipment was compared. ⋯ It was possible to detect yaw even with these small calibers, and the radar was not disturbed by additional equipment. Using Doppler radar to measure velocity offers important benefits--simple set up, minimal risk of damage to equipment by stray bullets, and very good accuracy. The results of measuring yaw angles of bullets are promising, as far as determining the point of stability is concerned, but further work is necessary to be able to measure the angle of yaw exactly.
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In war, uncomplicated penetrating injuries to limbs require evacuation to a surgical facility. A delay is inevitable between injury and definitive surgical treatment. This paper describes an experimental model that has been developed to assess the efficacy of antibiotics in such war wounds; the aim is to develop a treatment protocol to prevent the development of infection before casualties reach a surgical facility. ⋯ If the start of treatment was delayed to 6 hours after injury, this treatment regimen was adversely affected by the introduction of only 10(3) S. hyicus. In conclusion, an intramuscular benzylpenicillin regimen, commenced 1 hour after wounding, can prevent infection in penetrating soft tissue missile wounds for up to 3 days. A delay of 6 hours renders treatment ineffective.
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It is known that blast wave and fragments are the primary causes of casualties from explosive weapons. To study the characteristics of blast-fragment combined injuries, functional and morphological changes were investigated in three groups of anesthetized dogs with blast injury, high velocity fragment extremity injury, and combined injuries of both types. The same parameters were also examined in a control group. ⋯ It is concluded that extremity injury from high velocity fragment will aggravate lung blast injury. Changes in the levels of PGI2 and TXA2, can be used to determine the extent of injury in the three kinds of wounds. This may be useful for early diagnoses and rational treatment of the victims of explosion.