The Clinical journal of pain
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Children born very preterm display altered pain thresholds. Little is known about the neonatal clinical and psychosocial factors associated with their later pain perception. ⋯ In very preterm children, exposure to neonatal pain was related to altered pain self-ratings at school age, independent of other neonatal factors. Neonatal surgeries and concurrent psychosocial factors were also associated with pain ratings.
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The Analgesia Nociception Index (ANI), based on heart rate (HR) variability analysis, is known to decrease after a painful stimulus during surgery under general anesthesia in adults. It is measured continuously and noninvasively. We studied ANI response to procedural pain in a pediatric population and ANI measurement's feasibility in this context, across age. ⋯ In this pilot study, ANI measurement seems relevant in pediatric procedural pain, across age. Further studies are needed to confirm these results.
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To examine the acute effects of isometric exercise of different intensities on pain perception in individuals with chronic lateral epicondylalgia. ⋯ Individuals with lateral epicondylalgia demonstrated increased pain intensity after an acute bout of isometric exercise performed at an intensity above, but not below, their individual pain threshold. Further investigation is needed to determine whether measurement of an individual's exercise induced pain threshold may be important in reducing symptom flares associated with exercise.
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Although there is a large body of research on the relationship between pain catastrophizing and functioning among individuals with chronic pain, little is known about the potential differential impact of specific aspects of pain catastrophizing. The current study evaluates the relationship between the Rumination, Helplessness, and Magnification subscales of the Pain Catastrophizing Scale and pain-related outcomes. ⋯ Pain catastrophizing is a multifaceted construct, and different domains of catastrophizing are uniquely related to pain-related outcomes. This study represents the first to evaluate the functioning of these subscales in a large, diagnostically heterogeneous sample of chronic pain patients.