Predictors of Long-Term Opioid Effectiveness in Patients With Chronic Non-Cancer Pain Attending Multidisciplinary Pain Treatment Clinics: A Quebec Pain Registry Study.
Pain Pract
; 20(6): 588-599, 2020 07.
Article
em En
| MEDLINE
| ID: mdl-32187793
ABSTRACT
OBJECTIVE:
This study aimed to identify characteristics of individuals who are most likely to benefit from long-term opioid therapy in terms of reduction in pain severity and improved mental health-related quality of life (mQoL) without considering potential risks.METHODS:
This was a retrospective cohort study of 116 patients (age = 51.3 ± 12.5 years, male = 42.2%) enrolled in the Quebec Pain Registry between 2008 and 2011 and who initiated opioid therapy after their first appointment in a multidisciplinary pain clinic and persisted with this treatment for at least 12 months. Clinically significant improvement was defined as a 2-point decrease on the PEG (pain, enjoyment of life, and general activity) Scale of pain severity (scored from 0 to 10) at 12-month follow-up and a 10-point increase on the Short-Form-12 Health Survey version 2 (SF12-v2) Mental Health-Related Quality of Life Summary Scale, which corresponds to 1 standard deviation (SD) of the mean in the general population (mean = 50, SD = 10).RESULTS:
Clinically significant reduction in pain severity was observed in 26.7% of patients, while improvement in mQoL was reported by 20.2% of patients on long-term opioid therapy. Older age (odds ratio [OR] = 1.04; 95% confidence interval [CI] 1.0 to 1.08; P = 0.032) and alcohol or drug problems (OR = 0.26; 95% CI 0.07 to 0.96; P = 0.044) were weakly associated with pain severity at 12-month follow-up. Baseline higher pain severity (OR = 0.62; 95% CI 0.43 to 0.91; P = 0.014) and baseline higher mQoL (OR = 0.89; 95% CI 0.83 to 0.95; P = 0.001) were associated with non-improvement in mQoL.CONCLUSION:
The analysis failed to identify clinically meaningful predictors of opioid therapy effectiveness, making it difficult to inform clinicians about which patients with chronic non-cancer pain are most likely to benefit from long-term opioid therapy.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Clínicas de Dor
/
Dor Crônica
/
Analgésicos Opioides
Tipo de estudo:
Etiology_studies
/
Incidence_studies
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limite:
Aged
/
Female
/
Humans
/
Male
/
Middle aged
País/Região como assunto:
America do norte
Idioma:
En
Revista:
Pain Pract
Assunto da revista:
NEUROLOGIA
/
PSICOFISIOLOGIA
Ano de publicação:
2020
Tipo de documento:
Article
País de afiliação:
Canadá