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Wounding Patterns And Human Performance In Knife Attacks: Optimising The Protection Provided By Knife-resistant Body Armour.

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Abstract

BACKGROUND:

Stab attacks generate high loads, y to defeat them, armour needs to be of a certain thickness and stiffness. Slash attacks produce much lower loads and armour designed to defeat them can be far lighter and more flexible.

METHODS AND SUBJECTS:

Phase 1: Human performance in slash attacks: 87 randomly selected students at the Royal Military College of Science were asked to make one slash attack with an instrumented blade on a vertically mounted target. No instructions on how to slash the target were given. The direction, contact forces and velocity of each attack were recorded. Phase 2: Clinical experience with edged weapon attacks: The location and severity of all penetrating injuries in patients attending the Glasgow Royal Infirmary between 1993 and 1996 were charted on anatomical figures.

REQUEST:

Phase 1: Two types of human slash behaviour were evident: a 'chop and drag' blow and a 'sweep motion' type of attack. ...

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Retroperitoneal Injuries: Pitfalls In Diagnosis And Management

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Abstract

Retroperitoneal injury caused by penetrating trauma or associated with progressive shock following blunt trauma is usually recognized promptly and managed appropriately. Isolated retroperitoneal injury from blunt trauma, unless accompanied by major hemorrhage or gross hematuria, is often difficult to diagnose and needed treatment may be delayed. Although clinical examination remains the cornerstone of diagnosis, the high incidence of ethanol abuse and/or concurrent head injury in trauma patients has led to increased use of computed tomography in the diagnosis of abdominal trauma. To determine the effect, if any, of CT examination on the diagnosis and management of retroperitoneal trauma, we reviewed our patient experience. During the 16-month period ending in April 1986, 135 patients sustained 177 retroperitoneal injuries (116 by blunt and 19 by penetrating trauma). There were 26 deaths (19% mortality). There were 90 pelvic fractures and 31 lumbar spine There were 90 pelvic fractures and 31 lumbar spine fractures, as

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The Role Of Stabbing And Slashing In Knife Combat

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You’ve got to know your weapon because your survival would depend on it. In knife fighting, you’ve got to know what damage a blade can do to the human anatomy.

Stabbing and slashing are the two fundamental ways of inflicting trauma with a knife. This is evident in the basic principle of Filipino knife fighting that says, “In every thrust there is a slash and in every slash there is a thrust.”

Stab wounds are considered more lethal than slash wounds because of the greater possibility of internal organ damage. Considering the application of force and the positioning of the weapon, stabbing has a greater chance of puncturing a vital organ than slashing. But the latter can be deadly too if it severed an artery.

Death by either stab wound or slash wound is often caused by shock. This kind of shock is different from emotional state of shock. “Hypovolemic shock...

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Is Succinylcholine Really Superior for RSI?

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Background:

Intubation is arguably the most important procedure performed by Emergency Physicians (EPs). Ideally, it would be performed successfully on the first attempt each and every time, but this of course cannot always be the case. Rapid Sequence Intubation (RSI) has become the preferred method for emergency intubations, as it improves visualization of the vocal cords, and decreases complications such as aspiration and increased intracranial pressure. Succinylcholine, a depolarizing agent, is the most widely utilized paralytic due to its rapid onset and short half-life. However, there are certain circumstances in which succinylcholine is contraindicated, including suspected hyperkalemia, known prior adverse reactions, concern for head injury, neuromuscular disease, or spinal cord injury. Rocuronium, a non-depolarizing agent with a considerably longer half-life, is frequently used in these situations.

Prior studies evaluated by the Cochrane review suggest succinylcholine produces superior intubation conditions when compared to rocuronium.[1]However, there is concern that succinylcholine's advantage...

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Humiliation: the Trauma of Disrespect

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Abstract

Humiliation, triggered by sensed insult, is hypothesized as a traumatic stimulus and the driving force of a goal-directed survival response that includes predictable emotional appraisals, and motivational or behavioral responses. Because these responses appear automatic and obligatory, they are most likely innately planted as a survival mechanism. Sensitive to developmental experience, these psychobiological responses can be intensified or modulated by social learning....

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