Objective: The aim of this study was to culturally adapt into Spanish and validate the painDETECT questionnaire, a brief self-administered instrument designed to screen the presence of a neuropathic pain component in usual clinical practice. Methods: The original English painDETECT questionnaire was culturally adapted into Spanish (Spain) by 2 independent translators under supervision of an expert panel. The LANNS, and a pain visual analog scale were administered along with the painDETECT questionnaire to a sample of 252 patients with neuropathic, nociceptive, or mixed pain for at least 3 months. Patients were classified by experienced specialists under normal conditions of clinical practice. A retest measure after 24 to 48 hours was also carried out. Reliability, construct validity, convergent validity, criterion, and discriminant validity were assessed. Results: An effective sample of 221 patients with chronic pain was recruited, 32% diagnosed of neuropathic origin, 32% of nociceptive, and remaining 36% presented mixed pain. The average age was 57.8 years (SD=14.2) and 59% were women. Cronbach alpha attained a value of 0.86, and the intraclass correlation coefficient with the retest was 0.93. The factor structure was coherent with the one informed for the original instrument. Pearson correlation with the LANSS scale was 0.88. Area under the receiver operating characteristic curve was 0.88 when comparing neuropathic and nociceptive groups. Using the suggested cutoff value for pain presence of 19 points or higher, the following discriminant values are obtained: sensitivity=75%, specificity=84%, Youden Index=0.595, positive predictive value=92%, and negative predictive value=60%. The absence cutoff value of 12 points or bellow raised the following values: sensitivity=93%, specificity=68%, Youden Index=0.61, positive predictive value=87%, and negative predictive value=80%. When mixed pain patients are included in the group with a neuropathic component, discriminant values are slightly reduced, as expected. Conclusions: The culturally adapted version of the painDETECT presents good psychometric properties and shows to be a valid patient-reported outcome for measuring the presence of a neuropathic component in patients with chronic pain.

Aim: To build and preliminarily validate a Spanish‐language instrument to assess the impact that CNCP has on the daily lives of people who suffer from it.Background: The experience of pain is multifactorial and a correct assessment of it helps to control the intensity of pain. Although there are instruments that evaluate areas on which Chronic Non‐Cancer Pain impacts, it would be necessary to include other aspects that scientific literature identifies as relevant.Design: Instrument and construct cross‐sectional study for psychometric validation.Methods: A total of 157 items based on items from validated questionnaires were evaluated by a group of 21 chronic pain experts using Delphi methodology in three evaluation rounds. A final questionnaire of 55 items with a 5‐point Likert‐type scale was formed. This questionnaire was piloted on a total of 30 patients to assess their understanding of the items and the psychometric validation process was carried out (January to March 2020) on a subsequent sample of 395 people, all of whom attended Pain Units and Primary Care Centres of the Public Health System in Spain.Results: The PAIN_Integral Scale^© showed acceptable internal consistency scores measured by Cronbach's alpha. Exploratory Factor Analysis indicated a structure of nine factors that explain 71.02% of the total variance, from 157 to a final total of 36 items. Confirmatory Factor Analysis showing adequate values confirmed this structure. The effect size was used to calculate the cut‐off points for the overall scale, setting them at scores of 130 and 135.Conclusion: This instrument would allow to assess other constructs and dimensions not included in the instruments previously available such as treatment compliance, proactivity, resilience, hopelessness due to pain and pain catastrophizing. However, despite the fact that the preliminary analysis shows good results, it is necessary to continue with its validation process in subsequent studies.Impact: The PAIN_Integral Scale^©, once the validation process is finished, could be a complete enough instrument to allow a comprehensive healthcare assessment of Chronic Non‐Cancer Pain's impact on daily nursing clinical practice and other healthcare professionals.

Objectives: The management of chronic pain among patients with abdominal cancer is complex; against that, the neurolysis of the celiac plexus (CPN) is the best technique at the moment to determine the efficacy and safety in the treatment of chronic pain secondary to oncological pathology of the upper abdomen. Material and Methods: This was a systematic review of controlled clinical trials between 2000 and 2021, in the sources MEDLINE/PubMed, Cochrane, Scopus, Web of Science, and Google Scholar. Three independent evaluators analysed the results of the bibliographical research. The quality of the studies was assessed with the Jadad scale and the mean difference (95% confidence interval) and heterogeneity of the studies (I2) were calculated with Review Manager 5.3. Results: Seven hundred and forty-four publications were identified, including 13 studies in the qualitative synthesis and three studies in the quantitative synthesis. No difference was found in the decrease in pain intensity between 1 and 12 weeks after the intervention, comparing the experimental group with the control (P > 0.05). The adverse effects related to neurolysis were not serious and transitory, mentioning the most frequent adverse effects and reporting a percentage between 21% and 67% (with 17% for echoendoscopic neurolysis and 49% for percutaneous neurolysis). Conclusion: Celiac plexus neurolysis for the treatment of severe chronic pain secondary to oncological pathology in the upper hemiabdomen produces similar pain relief as conventional pharmacological analgesic treatment. It is a safe analgesic technique since the complications are mild and transitory.