European journal of pain : EJP
-
The incidence of chronic post-surgical pain (CPSP) after various common operations is 10% to 50%. Identification of patients at risk of developing chronic pain, and the management and prevention of CPSP remains inadequate. The aim of this study was to develop an easily applicable risk index for the detection of high-risk patients that takes into account the multifactorial aetiology of CPSP. ⋯ Five predictors multivariately contributed to the prediction of CPSP: capacity overload, preoperative pain in the operating field, other chronic preoperative pain, post-surgical acute pain and co-morbid stress symptoms. These results suggest that several easily assessable preoperative and perioperative patient characteristics can predict a patient's risk of developing CPSP. The risk index may help caregivers to tailor individual pain management and to assist high-risk patients with pain coping.
-
Randomized Controlled Trial
Attention focus, trait anxiety and pain perception in patients undergoing colposcopy.
Few studies have compared the relative efficacy of attention-focus strategies in reducing clinical pain. Colposcopy, a medical diagnostic examination performed to identify premalignant cervical cell changes, elicits both anxiety and pain in patients, while allowing little or no behavioural control over the event. Employing a multi-group experimental design, the present study sought to investigate how different types of attention-focus strategies impacted upon pain perception, state anxiety and affect, in a sample of 123 colposcopy patients. ⋯ Pre-colposcopy pain expectancy, but not trait anxiety, was found to be positively related to colposcopy-related pain. It was further demonstrated that heightened state anxiety following colposcopy was due to experienced pain and pain unpleasantness, rather than to aspects of the pre-colposcopy prediction of pain. The results have implications for management of acute clinical pain.
-
Neuropathic pain is strongly associated with mood disorders like anxiety and depression. Corticotropin-releasing factor (CRF) plays a prominent role in these disorders as it is up-regulated in limbic structures such as the amygdala, upon experimentally induced neuropathy. This review discusses recent literature on the role of CRF in pain processing and highlights the amygdala as a potential hot spot in supraspinal descending pain control. ⋯ Here, CRFR2 can be recruited by either high (pharmacological) concentrations of CRF or by endogenous CRFR2 ligands, the urocortins, leading to analgesia (pain termination). This on-off switching of pain is completed by redistribution of the CRF receptors to their initial activity state. We furthermore propose that in neuropathic pain, this mechanism is dysregulated and causes a state of permanent hyperalgesia, and present an integrative (patho)physiological model for the way disturbed CRF receptor signalling in the amygdala could initiate neuropathic pain.
-
To study the associations of sociodemographic factors, working conditions, lifestyle and previous pain in the spine with new onset chronic neck pain (NP). ⋯ We found potentially modifiable predictors of chronic NP among employees: workplace bullying, sleep problems, and high body mass index in women, and work-related emotional exhaustion in men. In both genders, previous acute NP and chronic LBP were predictive of chronic NP.