Early response to JAK inhibitors on central sensitization and pain catastrophizing in patients with active rheumatoid arthritis.

OBJECTIVES: To evaluate the effect of 4 weeks of treatment with Janus kinase inhibitors (JAKis) on central sensitization (CS) and pain catastrophizing, and to determine the pain-related variables predictive of disease activity improvement, in patients with active rheumatoid arthritis (RA). METHODS: Consecutive RA patients with active disease starting a JAKi have been enrolled in this prospective observational study. Patients have been assessed at baseline and after 4 weeks of treatment. The evaluation was comprehensive of disease activity [Simplified Disease Activity Index (SDAI) and ultrasonographic (US) score] and of questionnaires aimed at investigating primarily CS [Central Sensitization Inventory (CSI)] and pain catastrophizing [Pain Catastrophizing Scale (PCS)]. Differences (Δ values) between the final and baseline were studied with the t test, Δ values of the variables were correlated with each other using Pearson's test, and predictor variables for improvement in SDAI were also investigated using multivariate regression analysis. RESULTS: A total of 115 patients were evaluated. Overall, all variables demonstrated significant improvement between baseline and final except the US score. In particular, CSI decreased from 36.73 to 32.57 (p < 0.0001), PCS decreased from 32.46 to 28.72 (p = 0.0001). ΔSDAI showed a significant correlation with both ΔPCS and ΔCSI (r = 0.466 and 0.386, respectively, p < 0.0001). ΔPCS was the only variable predictive of an improvement in SDAI (coefficient = 0.500, p = 0.0224). CONCLUSION: JAKis would appear to have a positive effect on pain-related variables, particularly CS and pain catastrophizing, for the genesis of which extra-synovial mechanisms are responsible.

Identifying At-Risk Subgroups for Acute Postsurgical Pain: A Classification Tree Analysis.

Objective: Acute postsurgical pain is common and has potentially negative long-term consequences for patients. In this study, we evaluated effects of presurgery sociodemographics, pain experiences, psychological influences, and surgery-related variables on acute postsurgical pain using logistic regression vs classification tree analysis (CTA). Design: The study design was prospective. Setting: This study was carried out at Chongqing No. 9 hospital, Chongqing, China. Subjects: Patients (175 women, 84 men) completed a self-report battery 24 hours before surgery (T1) and pain intensity ratings 48-72 hours after surgery (T2). Results: An initial logistic regression analysis identified pain self-efficacy as the only presurgery predictor of postoperative pain intensity. Subsequently, a classification tree analysis (CTA) indicated that lower vs higher acute postoperative pain intensity levels were predicted not only by pain self-efficacy but also by its interaction with disease onset, pain catastrophizing, and body mass index. CTA results were replicated within a revised logistic regression model. Conclusions: Together, these findings underscored the potential utility of CTA as a means of identifying patient subgroups with higher and lower risk for severe acute postoperative pain based on interacting characteristics.

Can pain catastrophizing be changed in surgical patients? A scoping review

Background: Catastrophizing, a coping style characterized by an exaggerated negative affect when experiencing or anticipating pain, is an important factor that adversely affects surgical outcomes. Various interventions have been attempted with the goal of reducing catastrophizing and, by extension, improving treatment outcomes. We performed a systematic review to determine whether catastrophizing can be altered in surgical patients and to present evidence for interventions aimed at reducing catastrophizing in this population. Methods: Using a scoping design, we performed a systematic search of MEDLINE and Embase. Studies reporting original research measuring catastrophizing, before and after an intervention, on the Pain Catastrophizing Scale (PCS) or Coping Strategies Questionnaire (CSQ) were selected. Studies were assessed for quality, the nature of the intervention and the magnitude of the effect observed. Results: We identified 47 studies that measured the change in catastrophizing score following a broad range of interventions in surgical patients, including surgery, patient education, physiotherapy, cognitive behavioural therapy, psychologist-directed therapy, nursing-directed therapy and pharmacological treatments. The mean change in catastrophizing score as assessed with the PCS ranged from 0 to ­19, and that with the CSQ, from +0.07 to ­13. Clinically important changes in catastrophizing were observed in 7 studies (15%). Conclusion: Catastrophizing was observed to be modifiable with an intervention in a variety of surgical patient populations. Some interventions produced greater reductions than others, which will help direct future research in the improvement of surgical outcomes.

Contexte: Le catastrophisme est un mode d'adaptation caractérisé par un affect démesurément négatif chez la personne qui éprouve ou s'attend à éprouver de la douleur et c'est un facteur important qui peut influer négativement sur les résultats chirurgicaux. Diverses interventions ont été tentées pour atténuer le catastrophisme et par extension, améliorer les résultats des traitements. Nous avons procédé à une revue systématique afin de déterminer s'il est possible de modifier le catastrophisme chez les patients de chirurgie et présenter des données probantes concernant les interventions visant à atténuer le catastrophisme chez cette population. Méthodes: En utilisant un plan de délimitation de la portée, nous avons procédé à une interrogation systématique de bases de données MEDLINE et Embase. Les études portant sur des recherches originales d'évaluation du catastrophisme, avant et après une intervention, au moyen de l'échelle PCS (Pain Catastrophizing Scale) ou du questionnaire CSQ (Coping Strategies Questionnaire) ont été sélectionnées et elles ont été évaluées aux plans de la qualité, de la nature des interventions et de l'ampleur de l'effet observé. Résultats: Nous avons recensé 47 études qui ont mesuré un changement au score du catastrophisme après un vaste éventail d'interventions chez des patients de chirurgie, notamment : chirurgie, enseignement au patient, physiothérapie, thérapie cognitivocomportementales, thérapie sous la supervision d'un psychologue, thérapie sous la supervision du personnel infirmier et traitements pharmacologiques. Le changement moyen au score du catastrophisme évalué à l'aide de l'échelle PCS était de 0 à ­19, et à l'aide du questionnaire CSQ, de 0,07 à ­13. Des changements cliniquement importants du catastrophisme ont été observés dans 7 études (15 %). Conclusion: Le catastrophisme s'est révélé modifiable à l'aide d'interventions chez divers types de patients de chirurgie. Certaines interventions ont généré des réductions plus marquées, ce qui guidera la recherche future pour améliorer les résultats chirurgicaux.

Effects of Testosterone Replacement on Pain Catastrophizing and Sleep Quality in Men with Opioid-Induced Androgen Deficiency.

Objective: The objective of this investigation was to determine the effects of testosterone administration on pain catastrophizing and sleep quality in adult men with opioid-induced androgen deficiency. Design: Sixty-two men aged 18-64 years using opioid analgesics for chronic non-cancer pain with total testosterone levels < 350 ng/dl were randomized to 14 weeks of transdermal testosterone gel or placebo gel daily. Total testosterone levels were measured by liquid chromatography mass spectrometry and free testosterone was calculated using the law of mass action equation. Outcomes were assessed by administering validated instruments such as Pain Catastrophizing Scale (PCS) and Insomnia Severity Index (ISI) at baseline and 14 weeks. Results: Baseline characteristics were similar between the two groups. Mean (SD) total testosterone concentrations increased from 223 ± 86 to 775 ± 555 ng/dl in the testosterone group, but did not meaningfully change in placebo group. Mean changes in PCS and ISI scores during intervention did not differ significantly between groups and were not related to changes in on-treatment serum testosterone concentrations. Conclusion: In this 14-week trial, testosterone administration in men with opioid-induced androgen deficiency was not associated with improvements in pain catastrophizing or sleep quality.

Evaluation of How Depression and Anxiety Mediate the Relationship Between Pain Catastrophizing and Prescription Opioid Misuse in a Chronic Pain Population.

OBJECTIVE: We investigated the extent to which anxiety and depression mediate the relationship between pain catastrophizing and the risk of prescription opioid misuse in chronic pain patients. METHODS: 215 patients with chronic occupational musculoskeletal disorders completed self-report measures upon admission to a functional restorational program. A bootstrap multivariate regression analysis was conducted to assess how depression and anxiety mediated the relationship between pain catastrophizing and prescription opioid misuse. RESULTS: Catastrophizing, anxiety, and depression predicted higher risk for prescription opioid misuse. Furthermore, anxiety and depression acted as mediators while controlling for the effects of gender and age. Finally, it was found that the effects of catastrophizing on risk for prescription opioid misuse were completely eliminated by those of depression. CONCLUSION: Due to the partially independent relationship of anxiety and catastrophizing, it is recommended that treatments for chronic pain patients employ techniques addressing both behaviors. The relationship between depression and catastrophizing requires more research since it was observed that their effects were confounded.

Analgesic effect of perioperative escitalopram in high pain catastrophizing patients after total knee arthroplasty: a randomized, double-blind, placebo-controlled trial.

BACKGROUND: Sufficient pain treatment remains a challenge after total knee arthroplasty (TKA), especially in high pain catastrophizing patients. Serotonergic signaling may be involved in pain processing, but the effect of selective serotonin reuptake inhibitors on well-defined postoperative pain has not previously been investigated. The authors hypothesized that perioperative escitalopram would reduce pain after TKA in high pain catastrophizing patients. METHODS: A total of 120 pain catastrophizing patients (selected using the pain catastrophizing scale as preoperative screening tool) scheduled for TKA were randomized in a double-blind manner to either 10 mg escitalopram or placebo daily from preanesthesia to postoperative day 6 in addition to a standardized analgesic regime. The primary outcome was pain upon ambulation 24 h after surgery. Secondary outcomes were overall pain during well-defined mobilizations and at rest from 2 to 48 h and from days 2 to 6, morphine equivalents, anxiety, depression, and side effects. RESULTS: Pain upon ambulation (mean [95% CI]) 24 h after surgery in the escitalopram versus placebo group was 58 (53 to 64) versus 64 (58 to 69), the mean difference being -5 (-13 to 3), P = 0.20. Overall pain upon ambulation and at rest from days 2 to 6 was lower in the escitalopram versus placebo group, as was depression score at day 6 (all P ≤ 0.01 in analyses uncorrected for multiple tests). Side effects were nonsignificant except for reduced tendency to sweat and prolonged sleep in the escitalopram group. No other between-group differences were observed. CONCLUSIONS: Escitalopram did not reduce pain upon ambulation 24 h after TKA in high pain catastrophizing patients. Future studies on optimal timing, dose, and duration of selective serotonin reuptake inhibitor treatment might be warranted.

Decision support for chronic pain care: how do primary care physicians decide when to prescribe opioids? a qualitative study.

BACKGROUND: Primary care physicians struggle to treat chronic noncancer pain while limiting opioid misuse, abuse, and diversion. The objective of this study was to understand how primary care physicians perceive their decisions to prescribe opioids in the context of chronic noncancer pain management. This question is important because interventions, such as decision support tools, must be designed based on a detailed understanding of how clinicians use information to make care decisions. METHODS: We conducted in-depth qualitative interviews with family medicine and general internal medicine physicians until reaching saturation in emergent themes. We used a funneling approach to ask a series of questions about physicians' general decision making challenges and use of information when considering chronic opioids. We then used an iterative, open-coding approach to identify and characterize themes in the data. RESULTS: We interviewed fifteen physicians with diverse clinical experiences, demographics, and practice affiliations. Physicians said that general decision making challenges in providing pain management included weighing risks and benefits of opioid therapies and time and resource constraints. Also, some physicians described their active avoidance of chronic pain treatment due to concerns about opioid risks. In their decision making, physicians described the importance of objective and consistent information, the importance of identifying "red flags" related to risks of opioids, the importance of information about physical function as an outcome, and the importance of information that engenders trust in patients. CONCLUSIONS: This study identified and described primary care physicians' struggles to deliver high quality care as they seek and make decisions based on an array of incomplete, conflicting, and often untrusted patient information. Decision support systems, education, and other interventions that address these challenges may alleviate primary care physicians' struggles and improve outcomes for patients with chronic pain and other challenging conditions.

Chronic and acute pain and pain management for patients in methadone maintenance treatment.

BACKGROUND AND OBJECTIVES: Many individuals receiving methadone maintenance treatment (MMT) for opioid addiction also require treatment for acute or chronic pain, and the presence of pain is known to have a negative impact on patient health and function. However, effective pain management in this population is complicated by many factors, including heightened pain sensitivity, high opioid tolerance, illicit substance use, and variable cross-tolerance to opioid pain medications. This article reviews the recent literature on acute and chronic pain among, and pain treatment of, patients receiving MMT for opioid addiction and discusses the implications for effective pain management. Acute pain management among women maintained on methadone during and after labor and delivery is also discussed, as well as common concerns held by patients and providers about appropriate pain management strategies in the context of methadone maintenance and addiction treatment. METHODS: One hundred nine articles were identified in a PubMed/MEDLINE electronic database search using the following search terms: methadone, methadone maintenance, methadone addiction, pain, pain management, chronic pain, and acute pain. Abstracts were reviewed for relevance, and additional studies were extracted from the reference lists of articles identified in the original search. RESULTS: The pain sensitivity and pain responses of MMT patients differ significantly from those of patients not maintained on opioids, and few data are available to guide patient care. CONCLUSIONS AND SCIENTIFIC SIGNIFICANCE: Rigorous studies are needed to identify and evaluate effective pain management approaches for this unique patient population and to improve patient treatment outcomes.

Gabapentin reduces preoperative anxiety and pain catastrophizing in highly anxious patients prior to major surgery: a blinded randomized placebo-controlled trial.

INTRODUCTION: Gabapentin is increasingly being used for the treatment of postoperative pain and a variety of psychiatric diseases, including chronic anxiety disorders. Trials have reported mixed results when gabapentin has been administered for the treatment of preoperative anxiety. We tested the hypothesis that gabapentin 1,200 mg vs placebo would reduce preoperative anxiety in patients who exhibit moderate to high preoperative anxiety. METHODS: A blinded randomized controlled trial was conducted from September 2009 to June 2011 at the Toronto General Hospital. Following ethics approval and informed consent, 50 female patients with a 0-10 numeric rating scale (NRS) anxiety score of greater than or equal to 5/10 consented to receive either gabapentin 1,200 mg (n = 25) or placebo (n = 25) prior to surgery. Randomization was computer generated, and the Investigational Pharmacy was responsible for the blinding and dispensing of medication. All patients and care providers, including physicians, nurses, and study personnel, were blinded to group allocation. Before administering the study medication, baseline anxiety levels were measured using a NRS, the Spielberger State-Trait Anxiety Inventories, the Pain Catastrophizing Scale, and the Pain Anxiety Symptoms Scale-20. Baseline pain intensity (0-10 NRS) and level of sedation (0-10 NRS and Richmond Agitation-Sedation Scale [RASS]) were also measured. Two hours after the administration of gabapentin or placebo (prior to surgery), patients again rated their anxiety, pain, and sedation levels using the same measurement tools as at baseline. The main outcome was a reduction in preoperative anxiety. RESULTS: Forty-four patients (22 treated with gabapentin 1,200 mg and 22 treated with placebo) were included in the analysis of the primary outcome. Analysis of covariance in which pre-drug NRS anxiety scores were used as the covariate showed that post-drug preoperative NRS anxiety (Effect size, 1.44; confidence interval [CI] 0.19 to 2.70) and pain catastrophizing (Effect size, 0.43; CI 0.12 to 0.74) scores were significantly lower in the gabapentin group than in the placebo control group, respectively. Post-drug sedation (Effect size, -3.02; CI -4.28 to -1.77) and RASS (Effect size, 0.41; CI 0.12 to 0.71) scores were significantly higher in the gabapentin group than in the placebo group, respectively. CONCLUSIONS: Administration of gabapentin 1,200 mg prior to surgery reduces preoperative NRS anxiety scores and pain catastrophizing scores and increases sedation prior to entering the operating room. These results suggest that gabapentin 1,200 mg may be a treatment option for patients who exhibit high levels of preoperative anxiety and pain catastrophizing; however, the sedative properties of the medication and the possibility of delayed postoperative discharge in the elective ambulatory population need to be considered.

Pain catastrophizing predicts poor response to topical analgesics in patients with neuropathic pain.

BACKGROUND: Previous research suggests that high levels of pain catastrophizing might predict poorer response to pharmacological interventions for neuropathic pain. OBJECTIVE: The present study sought to examine the clinical relevance of the relation between catastrophizing and analgesic response in individuals with neuropathic pain. Clinically meaningful reductions were defined in terms of the magnitude of reductions in pain through the course of treatment, and in terms of the number of patients whose end-of-treatment pain ratings were below 4/10. METHODS: Patients (n=82) with neuropathic pain conditions completed a measure of pain catastrophizing at the beginning of a three-week trial examining the efficacy of topical analgesics for neuropathic pain. RESULTS: Consistent with previous research, high scores on the measure of pain catastrophizing prospectively predicted poorer response to treatment. Fewer catastrophizers than noncatastrophizers showed moderate (≥ 2 points) or substantial reductions in pain ratings through the course of treatment. Fewer catastrophizers than noncatastrophizers achieved end-of-treatment pain ratings below 4/10. CONCLUSIONS: The results of the present study suggest that the development of brief interventions specifically targeting catastrophic thinking might be useful for enhancing the effects of pharmacological interventions for neuropathic pain. Furthermore, failure to account for the level of catastrophizing might contribute to null findings in clinical trials of analgesic medication.

Pain Medication Beliefs Mediate the Relationship Between Pain Catastrophizing and Opioid Prescription Use in Patients With Chronic Non-Cancer Pain.

Little is known about the mechanisms by which pain catastrophizing may be associated with opioid use outcomes. This study aimed to investigate the potential mediating role of beliefs about the appropriateness of pain medicines for pain treatment on the association between pain catastrophizing and prescription opioid use in a community chronic non-cancer pain (CNCP) sample. Individuals (N = 420) diagnosed with CNCP participated in a cross-sectional online self-report study with validated measures of pain medication beliefs, pain catastrophizing, and current prescription opioid use. Two parallel multiple mediator analyses with percentile-based bootstrapping examined pathways to both prescription opioid use and high-dose use (≥ 100mg oral morphine equivalents/day), while controlling for pain intensity and other relevant covariates. Pain medication beliefs significantly mediated the association between pain catastrophizing and prescription opioid use (CI = 0.011, 0.033). A similar pattern of findings was found for high-dose opioid use, with pain medication beliefs significantly mediating the pain catastrophizing-high-dose use association (CI = 0.006, 0.050). Pain medication beliefs are a potentially modifiable psychological mechanism by which pain catastrophizing is associated with opioid use, including high-dose use. These findings have important implications for personalizing prevention and treatment programs.

Inter-individual predictors of pain inhibition during performance of a competing cognitive task.

The main function of pain is to automatically draw attention towards sources of potential injury. However, pain sometimes needs to be inhibited in order to address or pursue more relevant tasks. Elucidating the factors that influence how people manage this relationship between pain and task performance is essential to understanding the disruptive nature of pain and its variability between individuals. Here, 41 healthy adults completed a challenging working memory task (2-back task) while receiving painful thermal stimulations. Examining the trial-by-trial relationship between pain perception and task performance revealed that pain's disruptive effects on performance were mediated by self-reported pain intensity, and that the analgesic effects of a competing task were influenced by task performance. We found that higher pain catastrophizing, higher trait anxiety, and lower trait mindfulness were associated with larger trade-offs between pain perception and task performance, suggesting that these psychological factors can predict increased fluctuations between disruption by pain and analgesia from a competing task. Altogether these findings provide an important and novel perspective on our understanding of individual differences in the interplay between pain and ongoing task performance.

Predicting Opioid Use, Increased Health Care Utilization and High Costs for Musculoskeletal Pain: What Factors Mediate Pain Intensity and Disability?

This study determined the predictive capabilities of pain intensity and disability on health care utilization (number of condition-specific health care visits, incident, and chronic opioid use) and costs (total condition-specific and overall medical costs) in the year following an initial evaluation for musculoskeletal pain. We explored pain catastrophizing and spatial distribution of symptoms (ie, body diagram symptom score) as mediators of these relationships. Two hundred eighty-three military service members receiving initial care for a musculoskeletal injury completed a region-specific disability measure, numeric pain rating scale, Pain Catastrophizing Scale, and body pain diagram. Pain intensity predicted all outcomes, while disability predicted incident opioid use only. No mediation effects were observed for either opioid use outcome, while pain catastrophizing partially mediated the relationship between pain intensity and number of health care visits. Pain catastrophizing and spatial distribution of symptoms fully mediated the relationship between pain intensity and both cost outcomes. The mediation effects of pain catastrophizing and spatial distribution of symptoms are outcome specific, and more consistently observed for cost outcomes. Higher pain intensity may drive more condition-specific health care utilization and use of opioids, while higher catastrophizing and larger spatial distribution of symptoms may drive higher costs for services received. PERSPECTIVE: This article examines underlying characteristics that help explain relationships between pain intensity and disability, and the outcomes of health care utilization and costs. Health care systems can use these findings to refine value-based prediction models by considering factors that differentially influence outcomes for health care use and cost of services.

Associations between pain coping and opioid use: One-month follow-up results of a prospective study in a cohort of traumatic injury patients.

OBJECTIVE: To examine associations between Pain Catastrophizing Scale (PCS) scores and daily opioid dosage in traumatic injury patients. DESIGN: This was a prospective cohort study with patient assessments at baseline and 1-month following discharge. SETTING: Study visits were conducted at a Regional Level I Trauma Center and by phone at follow-up. PATIENTS: Forty-nine injured inpatients completed baseline PCS. A subsample of 23 patients continued to take prescribed opioid medication at 1-month postdischarge and were included in the current analyses. MAIN OUTCOME MEASURED: Associations between baseline PCS and morphine equivalent daily dose (MEDD) at 1-month follow-up. RESULTS: Controlling for baseline MEDD, baseline PCS score was positively associated with MEDD at 1-month postdischarge (ß= 0.577 [0.399, 1.535]; p = 0.002; R2 of PCS = 0.395). CONCLUSIONS: In the current sample of traumatic injury inpatients, findings indicated that a baseline measure of pain catastrophizing predicts ongoing opioid medication use and dosage at 1-month postdischarge from an inpatient trauma unit.

Optimizing Placebo and Minimizing Nocebo to Reduce Pain, Catastrophizing, and Opioid Use: A Review of the Science and an Evidence-Informed Clinical Toolkit.

Pain, a noxious psychosensory experience, motivates escape behavior to assure protection and survival. Psychological factors alter the experience and trajectory of pain, as well as behavior and treatment response. In the context of pain, the placebo effect (expectation for pain relief) releases endogenous opioids and facilitates analgesia from exogenously administered opioids. Nocebo hyperalgesia (expectation for persistent or worsening pain) opposes endogenous opioid analgesia and patient engagement in prescription opioid tapering. Reductions in nocebo hyperalgesia and pain catastrophizing may enhance descending modulation of pain, mediate adaptive structural brain changes and promote patient engagement in opioid tapering. Interventions that minimize nocebo and optimize placebo may adaptively shape the central nervous system toward pain relief and potentially opioid reduction. Here we provide a critical description of catastrophizing and its impact on pain, placebo and nocebo effects. We also consider the importance of minimizing nocebo and optimizing placebo effects during prescription opioid tapering, and offer a clinical toolkit of resources to accomplish these goals clinically.

Las inyecciones epidurales lumbares de esteroides reducen el catastrofismo en el síndrome radicular lumbosacro / Lumbar epidural steroids injections reduce catastrophism on the lumbosacral radicular syndrome

Objetivo: Estudiar la influencia del catastrofismo sobre el dolor lumbar crónico radicular y evaluar sus cambios a la inyección epidural de esteroides. Además, estudiar la relación entre catastrofismo y la respuesta al tratamiento. Material y métodos: Se realizó un estudio prospectivo sobre 52 pacientes con lumbociatálgia crónica unilateral, a los que se le realizó una inyección epidural lumbar de esteroides. En 39 de ellos se valoró en condiciones basales y al mes del procedimiento, el dolor y el catastrofismo mediante el Inventario Abreviado de Dolor y la Escala de Catastrofismo. Se definó como "respon­dedores" a los pacientes con disminución de 2 puntos o más en la intensidad del dolor. Para el catastrofismo se consideró un score de 30 como severo. Un valor de p < 0,05 se consideró de significancia estadística. Resultados: El catastrofismo total fue mayor en mujeres que en hombres. Se encontró una correlación lineal positiva moderada entre catastrofismo, intensidad del dolor e índice de interferencia, estadísticamente significativa. En los 39 pacientes tratados, se encontró una disminución estadísticamente significativa de la intensidad, interferencia funcional del dolor y catastrofismo total. Dieciseis pacientes se considera­ron respondedores. En estos, el índice de intensidad disminuyó de 7,8 ± 0,8 a 3,9 ± 3,1 (50 % de porcentaje de cambio, p = 0,0001); la interferencia funcional del dolor evaluada por el índice de interferencia disminuyó de 8,2 ± 1,6 a 5,0 ± 3,8 (40 % de cambio, p = 0,0027) y el catastrofismo total disminuyó de 37 ± 13 a 17,5 ± 16 (57 % de cambio, p < 0,0001). El catastrofismo total previo no mostró diferencias entre los pacientes respondedores y no respondedores a las inyecciones epidurales de esteroides. Conclusiones: La inyección epidural de esteroides en pacientes con dolor lumbar radicular crónico resultó efectiva para disminuir el dolor y sus repercusiones funcionales...(AU)

Objetive: The aim of this study was to investigate the relationship existent between pain catastrophism and pain intensity and pain interference, in patients with lumbosacral radicular pain. The effect on catastrophism of epidural steroid injections was also asessed. Material an methods: A prospective study was conducted on 52 patients with unilateral lumbosacral radi­cular pain. In 39 of them, the Brief Pain Inventory and the Catastrophism Scale was applied before and one month afer a epidural steroid injection. Responderes to treatment ere defined with a decrease of 2 points or more in pain intensity. For catastrophism, a score of 30 was considered severe. A value of p < 0.05 was taken as statistical significance. Results: Catastrophism was significantly higher in women. Moderate and statistically significant positive linear correlations between pain intensity, pain interference and catastrophism were found. In treated patients, a significant decrease in pain intensity, pain interference and catastrophism were observed. Sixteen patients were considered treatment responders. In them, pain intensity and catastrophism had a clinical and statistically significant reduction. Score of Intensity was reduced from 7.8 ± 0.8 to 3.9 ± 3.1 (50 % of change percentage, p = 0.0001), functional interfe­rence of pain evaluated by Score of Interference from 8.2 ± 1.6 to 5.0 ± 3.8 (40 % of change percentage, p = 0.0027) and Total Catastrophism from 37 ± 13 to 17.5 ± 16 (57 % of change percentage, p < 0.0001). No difference were found in Total Catastrophism evaluated before the proceduresl between responders and no responders to epidural steroid injections. Conclusions: Epidural steroid injections was effective in reducing pain in 41 % of controlled patients. The decrease in pain was accompanied by a reduction in Total Catastrophism, which showed to be a dynamic cons­truct, capable of being modified by interventional pain treatments...(AU)

A randomized clinical trial comparing group cognitive-behavioral therapy and a topical steroid for women with dyspareunia.

OBJECTIVE: This 13-week randomized clinical trial aimed to compare group cognitive-behavioral therapy (GCBT) and a topical steroid in the treatment of provoked vestibulodynia, the most common form of dyspareunia. METHOD: Participants were 97 women randomly assigned to 1 of 2 treatment conditions and assessed at pretreatment, posttreatment and 6-month follow-up via structured interviews and standard questionnaires pertaining to pain (McGill Pain Questionnaire, 11-point numerical rating scale of pain during intercourse), sexual function (Female Sexual Function Index, intercourse frequency), psychological adjustment (Pain Catastrophizing Scale, Painful Intercourse Self-Efficacy Scale), treatment satisfaction, and participant global ratings of improvements in pain and sexuality. RESULTS: Intent-to-treat multilevel and covariance analyses showed that both groups reported statistically significant reductions in pain from baseline to posttreatment and 6-month follow-up, although the GCBT group showed significantly more pain reduction at 6-month follow-up on the McGill Pain Questionnaire. The 2 groups significantly improved on measures of psychological adjustment, and the GCBT group had significantly greater reductions in pain catastrophizing at posttreatment. Both groups' sexual function significantly improved from baseline to posttreatment and 6-month follow-up, and the GCBT group was doing significantly better at the 6-month follow-up. Treatment satisfaction was significantly higher in the GCBT group, as were self-reported improvements in pain and sexuality. CONCLUSIONS: Findings suggest that GCBT may yield a positive impact on more dimensions of dyspareunia than a topical steroid, and support its recommendation as a first-line treatment for provoked vestibulodynia.