Articles: postoperative-pain.
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Randomized Controlled Trial
Effects of 4 mg and 8 mg Dexamethasone Added to Intrathecal Bupivacaine on Perioperative Analgesia Among Adult Orthopedic Patients at Sodo Christian Hospital: A Prospective Cohort Study.
Background: Several adjuvant drugs have been tried to prolong spinal anesthesia block. Currently, dexamethasone appears to be effective in extending the duration of sensory block and enhancing analgesia during surgery. It is unclear, however, whether administering dexamethasone at a dose of 8 mg offers any advantages over administering it at a dose of 4 mg. ⋯ In addition, there was no significant difference (p > 0.05) in postoperative analgesic use, initial analgesia rescue time, or pain severity, as measured by the Numerical Rating Scale (NRS). The addition of dexamethasone did not result in any issues, nor was there a statistically significant difference in the onset time between the two groups. Conclusion: Dexamethasone at a dose of 4 mg extends the duration of sensory, motor, and overall analgesia in a manner similar to that of 8 mg dexamethasone with comparable durations for both the initial analgesic request and overall analgesic use.
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In children, the relationship between the dose of intraoperative opioid and postoperative outcomes is unclear. We examined the relationship between intraoperative opioid dose and postanesthesia care unit (PACU) pain scores and opioid and antiemetic administrations. ⋯ Children who received lower doses of intraoperative opioids did not have worse PACU pain outcomes but required fewer antiemetics and received greater numbers of nonopioid analgesics intraoperatively. These findings suggest that lower doses of intraoperative opioids may be administered to children as long as other analgesics are used.
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Sex-related exacerbation of injury-induced mechanical hypersensitivity in GAD67 haplodeficient mice.
Decreased GABA levels in injury-induced loss of spinal inhibition are still under intense interest and debate. Here, we show that GAD67 haplodeficient mice exhibited a prolonged injury-induced mechanical hypersensitivity in postoperative, inflammatory, and neuropathic pain models. In line with this, we found that loss of 1 copy of the GAD67-encoding gene Gad1 causes a significant decrease in GABA contents in spinal GABAergic neuronal profiles. ⋯ Remarkably, all these phenotypes were more pronounced in GAD67 haplodeficient females. These mice had significantly much lower amount of spinal GABA content, exhibited an exacerbated pain phenotype during the second phase of the formalin test, developed a longer lasting mechanical hypersensitivity in the chronic constriction injury of the sciatic nerve model, and were unresponsive to the pain relief effect of the GABA-transaminase inhibitor phenylethylidenehydrazine. Our study provides strong evidence for a role of GABA levels in the modulation of injury-induced mechanical pain and suggests a potential role of the GABAergic system in the prevalence of some painful diseases among females.
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The factors influencing pain recurrence following V1 trigeminal nerve surgery are still unknown. ⋯ A high-precision nomogram-based predictive model was successfully established and validated (with predictive variables including age, pre-Numeric Rating Scale score, and surgery type). We envisage this model will help improve the early identification and screening of high-risk patients for postsurgery pain recurrence of the V1 trigeminal nerve branch.
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Thoracic paravertebral block (TPVB) is a well-established procedure for the management of postoperative pain in patients undergoing video-assisted thoracic surgery (VATS). In recent years, there have been studies suggesting that fascial plane blocks may be an alternative to TPVB. The objective of our study was to determine the efficacy of combined deep and superficial serratus anterior block (C-SAPB) as an alternative to TPVB in the management of postoperative analgesia in VATS. ⋯ Similar analgesic efficacy was observed between C-SAPB and TPVB. TPVB maintains its place among the first choices in VATS. The efficacy of C-SAPB is comparable to that of TPVB. While the duration of C-SAPB application is not a significant factor, the brief nature of the procedure and its straightforward administration suggest that it may be an effective method.