Kristin L Schreiber1, Claudia Campbell, Marc O Martel, Seth Greenbaum, Ajay D Wasan, David Borsook, Robert N Jamison, Robert R Edwards. 1. From the Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital, Boston, Massachusetts (K.L.S., S.G., R.N.J., R.R.E.); Department of Psychiatry and Behavioral Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland (C.C., A.D.W.); Department of Anesthesiology and Psychiatry, University of Pittsburgh Medical Center (C.C., A.D.W.); Department of Psychiatry, Brigham and Women's Hospital (M.O.M., R.N.J., R.R.E.); and Center for Pain and the Brain, P.A.I.N. Group, Boston Children's Hospital, Boston, Massachusetts (D.B.).
Abstract
BACKGROUND: Diverting attention away from noxious stimulation (i.e., distraction) is a common pain-coping strategy. Its effects are variable across individuals, however, and the authors hypothesized that chronic pain patients who reported higher levels of pain catastrophizing would derive less pain-reducing benefit from distraction. METHODS: Chronic pain patients (n=149) underwent psychometric and quantitative sensory testing, including assessment of the temporal summation of pain in the presence and absence of a distracting motor task. RESULTS: A simple distraction task decreased temporal summation of pain overall, but, surprisingly, a greater distraction analgesia was observed in high catastrophizers. This enhanced distraction analgesia in high catastrophizers was not altered when controlling for current pain scores, depression, anxiety, or opioid use (analysis of covariance [ANCOVA]: F=8.7, P<0.005). Interestingly, the magnitude of distraction analgesia was inversely correlated with conditioned pain modulation (Pearson R=-0.23, P=0.005). CONCLUSION: Distraction produced greater analgesia among chronic pain patients with higher catastrophizing, suggesting that catastrophizing's pain-amplifying effects may be due in part to greater attention to pain, and these patients may benefit from distraction-based pain management approaches. Furthermore, these data suggest that distraction analgesia and conditioned pain modulation may involve separate underlying mechanisms.
BACKGROUND: Diverting attention away from noxious stimulation (i.e., distraction) is a common pain-coping strategy. Its effects are variable across individuals, however, and the authors hypothesized that chronic painpatients who reported higher levels of pain catastrophizing would derive less pain-reducing benefit from distraction. METHODS:Chronic painpatients (n=149) underwent psychometric and quantitative sensory testing, including assessment of the temporal summation of pain in the presence and absence of a distracting motor task. RESULTS: A simple distraction task decreased temporal summation of pain overall, but, surprisingly, a greater distraction analgesia was observed in high catastrophizers. This enhanced distraction analgesia in high catastrophizers was not altered when controlling for current pain scores, depression, anxiety, or opioid use (analysis of covariance [ANCOVA]: F=8.7, P<0.005). Interestingly, the magnitude of distraction analgesia was inversely correlated with conditioned pain modulation (Pearson R=-0.23, P=0.005). CONCLUSION: Distraction produced greater analgesia among chronic painpatients with higher catastrophizing, suggesting that catastrophizing's pain-amplifying effects may be due in part to greater attention to pain, and these patients may benefit from distraction-based pain management approaches. Furthermore, these data suggest that distraction analgesia and conditioned pain modulation may involve separate underlying mechanisms.
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