期刊
CLINICAL JOURNAL OF PAIN
卷 35, 期 5, 页码 385-393出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/AJP.0000000000000689
关键词
central sensitization; experiential avoidance; fibromyalgia; PTSD; trauma
资金
- Vanderbilt Patient Centered Outcomes Research Education and Training Initiative
- Agency for Healthcare Research and Quality, Nashville, TN [AHRQ 6K12HS022990-05]
- NIH, Nashville, TN [R01-DA037891]
- Vanderbilt University Medical Center CTSA award from the National Center for Advancing Translational Sciences, Nashville, TN [UL1TR002243]
Objective: Evidence supports high rates of co-occurrence of posttraumatic stress disorder (PTSD) and chronic pain disorders involving central sensitization (CS). The nature of this relationship, however, remains relatively unexplored. In this study, we aimed to (1) assess how both trauma exposure and current PTSD symptoms are related to clinical manifestations of CS, and (2) test whether PTSD symptoms explain the relationship between trauma exposure and CS. Because experiential avoidance has been shown to impact the relationship between trauma and health outcomes, we (3) explored experiential avoidance as a possible mediator or moderator of the trauma-CS relationship. Methods: A sample of 202 adult patients (79% female) with chronic pain completed validated self-report measures of trauma exposure, current PTSD symptoms, experiential avoidance, and 3 manifestations of CS: widespread pain, greater pain severity, and polysomatic symptom reporting. We used path analysis and multivariate regression to assess our study aims. Results: Both trauma exposure and PTSD symptoms were significantly associated with all 3 clinical indicators of CS. PTSD symptoms partially explained the relationship between trauma exposure and widespread pain, pain intensity, and polysomatic symptoms. Experiential avoidance did not mediate or moderate the trauma-CS relationship. Conclusions: Our findings suggest that trauma exposure is linked to elevated clinical markers of CS but a critical factor in this relationship is the mediating effect of current PTSD symptoms.
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