European journal of pain : EJP
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Recently, fatty acids have been shown to modulate sensory function in animal models of neuropathic pain. In this study, the antinociceptive effect of 2-hydroxyoleic acid (2-OHOA) was assessed following spared nerve injury (SNI) with reflex and cerebrally mediated behavioural responses. ⋯ Oral administration of the modified omega 9 fatty acid, 2-OHOA, mediates antinociception and prevents open-field-induced anxiety in the SNI model in Wistar rats, which is mediated by an inhibition of spinal dorsal horn microglia activation.
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Randomized Controlled Trial
Effects of TENS in living kidney donors submitted to open nephrectomy: A randomized placebo-controlled trial.
Pain is a negative factor in the recovery process of postoperative patients. It causes pulmonary alterations and complications, and it also affects functional capacity. Several studies have investigated the effects of transcutaneous electrical nerve stimulation (TENS) during the postoperative period. However, no studies have assessed the effects of TENS on kidney donors. Thus, the aim of the present study was to evaluate the effect of TENS on pain, walking function, respiratory muscle strength and vital capacity in kidney donors. ⋯ These results suggest that TENS decreases pain intensity at rest and during respiratory manoeuvres and increases maximal expiratory pressure during the postoperative period in kidney donors after open nephrectomy.
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Pain prevalence studies are important as they illustrate the magnitude of pain problems in a certain patient population, such as patients living with a spinal cord injury (SCI). Strikingly, reported pain prevalence rates in SCI patients are found to vary greatly, while determinants for the differences between pain prevalence reports remain unclear. We here aim to identify determinants for the differences (heterogeneity) in pain prevalence reports through a systematic review of all SCI pain prevalence reporting studies. ⋯ While correcting for these items, population characteristics correlating with pain prevalence rates were both proportion of patients with a depression and average time after injury (positive correlations). Between-study heterogeneity may remain even after the identification/correction of above-mentioned causes of heterogeneity. Pain after SCI does seem to relate to the duration of the injury and depression, yet major causes of bias in reported pain prevalence are found to be related to the primary study goal (pain study or not), choice of pain definition and the use of retrospective data.
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Randomized Controlled Trial Comparative Study
Qigong versus exercise therapy for chronic low back pain in adults - A randomized controlled non-inferiority trial.
The value of qigong in the treatment of chronic low back pain is unclear. In a randomized controlled trial, we evaluated whether qigong is non-inferior to exercise therapy in patients with chronic low back pain. ⋯ Qigong was not proven to be non-inferior to exercise therapy in the treatment of chronic low back pain. Its role in the prevention of chronic low back pain might be addressed in further studies.
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Randomized Controlled Trial
Out of sight, but not out of mind? Greater reported pain in patients who spontaneously look away during venepuncture.
Various external factors can influence patients' experiences of noxious stimuli, but little is known of how patients' natural behaviour may be relevant. We ascertained how often patients spontaneously look or look away during venepuncture and associated reports of pain during a previously reported experimental randomized study. The study was conducted in the outpatient department of a U.K. district general hospital. ⋯ Almost three quarters of patients spontaneously look away during venepuncture, but their pain ratings are almost twice that of the quarter of patients who look. It is unclear why this may be, but previous experimental studies indicate that observing the body when a noxious stimulus is applied can have an analgesic effect.