The role of fatigue in functional outcomes for youth with chronic pain.

Background: As a complex multidimensional construct, fatigue may play an important role in the physical and psychosocial functioning of youth with chronic pain. Based on a model previously tested in adults, the current study similarly utilized patient-reported outcomes measurement system (PROMIS) to examine how fatigue contributes to functional outcomes for youth with chronic pain. The model tested self-reported ratings of pain intensity, depressive symptoms and sleep disturbance as predictors of outcomes (mobility, pain-related interference and school functioning) as mediated by ratings of fatigue.

Response to BotulinumtoxinA in a migraine cohort with multiple comorbidities and widespread pain.

Background: The phase III research evaluating migraine prophylaxis therapy (PREEMPT) protocol was developed in low-risk migraine patients. We studied longitudinal response to treatment in a sequential retrospective observational cohort to evaluate predictors of effectiveness in patients with multiple overlapping pain syndromes treated in a quaternary pain management clinic.

Methods: We evaluated indicators of individual response in 402 consecutive chronic migraine patients who provided demographic information and used the Collaborative Health Outcomes Information Registry.