from SECTION ONE - OVERVIEW AND PRINCIPLES IN EMERGENCY ANALGESIA AND PROCEDURAL SEDATION
Published online by Cambridge University Press: 03 December 2009
SCOPE OF THE PROBLEM
Pain in infants poses a major challenge for health professionals. Although infants are uniquely vulnerable to pain and its consequences, pain is less adequately controlled in this patient population than in any other. Many reasons account for the undertreatment of pain in infants with the most common problem being a paucity of knowledge regarding pain and analgesia for the infant population.
CLINICAL ASSESSMENT
Definition of Pain in Infants
The International Association for the Study of Pain (IASP) has defined pain as “an unpleasant sensory and emotional experience associated with actual or potential tissue damage or described in terms of such damage” (from reference). It has been suggested that this definition is inappropriate for infants.
The interpretation of pain is subjective and infants lack the ability of self-report in the traditional sense. This inability to verbalize pain contributes to the failure of health-care professionals to recognize and treat pain aggressively in infants.
It has also been hypothesized that pain perception occurs in a less-organized fashion in the infant than the child or adult. Pain is a combination of sensory (discriminative) and emotional (affective) components. The sensory component of pain is defined as nociception. Nociception incorporates the physiologic and behavioral responses of infants to a painful stimulus but not the cognitive responses that are part of pain perception. Consequently, health-care professionals are required to rely on physiologic and behavioral responses when assessing pain in an infant.
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