Published online by Cambridge University Press: 18 January 2010
Objectives
Discuss the mechanisms of acute pain after trauma.
Evaluate posttraumatic pain modalities.
Describe the use of regional anesthesia for trauma patients including brachial plexus blocks, epidurals, and lower limb blocks.
INTRODUCTION
Pain is now considered the fifth vital sign. However, inadequate treatment of pain is common and can result in chronic pain syndromes in up to 69 percent of patients [1, 2]. This is more likely in the trauma setting, as pain often is the last priority in a patient who is hemodynamically unstable. Fortunately, this is changing. The joint commission on Accreditation of Healthcare Organizations recently stated that “unrelieved pain has physical and psychological effects” and that the patient's right to pain management should be respected and supported and that pain must be assessed in all patients [3].
Polytrauma involves injuries to multiple organs requiring emergent or urgent surgeries. The involvement of the central nervous system (CNS), cardiorespiratory system, as well as peripheral limbs results in significant pain to the patient. There is inadequate time to deal with such severe pain due to the need for lifesaving surgical procedures. The caregivers are often worried about masking clinical signs of major organ injury involving the CNS, abdomen, and chest viscera. Caregivers at the emergency site or in emergency rooms may be inadequately trained on the pain management modalities that are currently available. For a long time, regional blocks were not adequately exploited in the emergency rooms for pain management, but the trend is currently changing.
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