The Clinical journal of pain
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Temporomandibular disorders (TMDs) are considered to be comorbid with headaches. Earlier population studies have suggested that TMD may also be a risk factor for migraine progression. If that is true, TMD should be associated with specific headache syndromes (eg, migraine and chronic migraine), but not with headaches overall. Accordingly, our aim was to explore the relationship between TMD subtypes and severity with primary headaches in a controlled clinical study. ⋯ TMD, TMD subtypes, and TMD severity are independently associated with specific headache syndromes and with headache frequency. This differential association suggests that the presence of central facilitation of nociceptive inputs may be of importance, as positive association was observed only when muscular TMD pain was involved.
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One of the most important determinants of the individual pain experience is pain catastrophizing, reflecting an excessively negative cognitive and emotional orientation toward pain. Its assessment by standard questionnaires, which ask participants to reflect on idiosyncratic past painful experiences, is important. It is currently not known whether different types of pain differently shape pain catastrophizing. Furthermore, as the regulation of emotions changes during the life span, age may affect pain catastrophizing, as well. ⋯ This study indicates that for day-to-day pain, catastrophizing significantly depends on pain type. The results suggest the use of pain-type-specific instructions for catastrophizing questionnaires because it may lead to better prediction of clinically relevant pain characteristics, such as pain intensity. Furthermore, pain catastrophizing seems to change during the life span, with a higher engagement of emotional versus sensory pain processing in younger compared with older adults.
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Randomized Controlled Trial
Efficacy of small doses of ketamine with morphine to decrease procedural pain responses during open wound care.
The purpose of this study was to evaluate differences in pain intensity, pain quality, physiological measures, and adverse effects when patients received morphine with saline (MS) compared with morphine and a small dose of ketamine (MK) before an open wound care procedure (WCP). ⋯ Ketamine with morphine significantly reduced procedural wound pain intensity during WCP. Adverse effects and higher diastolic BP occurred with MK. Further research is warranted to determine the optimal analgesic dose of ketamine or if the addition of a benzodiazepine would mitigate the psychotomimetic effects of ketamine.
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Review Meta Analysis
Educational interventions by pharmacists to patients with chronic pain: systematic review and meta-analysis.
We hypothesized that educational interventions delivered by pharmacists to patients with chronic pain might improve pain-related outcomes and sought to establish "proof of concept" for this hypothesis. ⋯ Pharmacist-delivered educational interventions seem to reduce adverse events and improve satisfaction, but their clinical benefit on pain intensity is debatable. Our analysis suggests that the role of pharmacists may be important but a deeper understanding and evaluation of the active components of these interventions is needed within clinical trials before wider implementation into clinical practice can be recommended.
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Assessing pain in elderly persons, who have diminished capacity to communicate verbally, requires use of observational scales that focus upon nonverbal behavior. Facial expression has been recognized as providing the most specific and sensitive nonverbal cues for pain. This study examined the validity of facial expression components of 6 widely used pain assessment scales developed for elders with dementia. Descriptions of the facial expression of pain vary widely on these scales. ⋯ Facial expression items on observational scales for assessing pain in the elderly benefit from adherence to empirically derived descriptions. Those using the scales should receive specific direction concerning cues to be assessed. Observational scales that provide descriptors that correspond to how people actually display facial expressions of pain perform better at differentiating intensities of pain.