• Jeffrey J Gedney, Henrietta Logan, and Robert S Baron.
• Division of Public Health Services and Research, University of Florida, Gainsville, FL, USA.
• J Pain. 2003 Mar 1; 4 (2): 47-55.

AbstractThe purpose of this investigation was to establish predictors of the dimensions of pain intensity and pain unpleasantness recalled at 1 week and 18 months after an invasive therapeutic procedure, root canal therapy (RCT). Pretreatment measures of mood state and RCT-related expectations of sensory and affective dimensions of pain by using a visual analog scale (VAS) format were obtained. VAS measures of experienced pain intensity and unpleasantness were obtained immediately after treatment. Patients[apos ] memory of their RCT-related pain intensity and unpleasantness was assessed by phone call. Regression analysis showed that after controlling for age, experienced pain intensity predicts 1-week memory of pain intensity (adjusted R(2) [equals].34, P [lt ].01), whereas patients[apos ] pretreatment affective state predicts the memory of pain intensity at 18 months (adjusted R(2) [equals].24, P [lt ].01) and the memory of pain unpleasantness at 1 week (adjusted R(2) [equals].40, P [lt ].01) and 18 months (adjusted R(2) [equals].62, P [lt ].01). These findings point to the contribution of preexisting affective state to the sensory and affective dimensions of pain recollection and illustrate the importance of anxiety management for minimizing patient[apos ]s long-term recollection of the aversiveness of outpatient medical and dental procedures.2003 by the American Pain Society

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