The Clinical journal of pain · 2017
Evaluating the Association Between Acute and Chronic Pain After Surgery: Impact of Pain Measurement Methods.
СтатьяПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод в очереди
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Gilron Ian, Vandenkerkhof Elizabeth, Katz Joel, Kehlet Henrik, Carley Meg
Аннотация
AIM/OBJECTIVES/BACKGROUND: There is a need to predict chronic (Z3mo) postsurgical pain (CPSP). Acute (<7 d) pain is a predictor, that is, more severe pain is associated with higher CPSP risk. However, reported associations vary widely.
METHODS: Using a systematic search, we examined associations between 2 acute pain measures (pain at rest [PAR] and movement-evoked pain [MEP]) and CPSP outcomes (considering severity vs. any "nonzero" pain only) in 22 studies.
RESULTS: Seven studies reported the relationship between CPSP and both PAR and MEP. Of these, 2/7 reported no association, 3/7 reported significant associations for both PAR and MEP, 1/7 reported an association for PAR only, and 1/7 reported an association for MEP only. Six of another 7 studies reporting only the association for MEP found a significant relationship. Three of the 5 studies that did not specify whether acute pain outcomes were PAR or MEP reported a significant relationship. Another 3 studies reporting a relationship with CPSP did not specify whether this was for PAR, MEP, or both. All investigations incorporating severity of CPSP in their analyses (n=7) demonstrated a significant relationship, whereas only 10 of the 15 studies that dichotomized CPSP outcome as "no pain" versus "any"/"nonzero pain" were positive.
CONCLUSIONS: Overall, evidence for an association between acute and chronic pain is moderate at best. However, closer attention to pain measurement methods will clarify the relationships between acute pain and CPSP. We propose that future CPSP predictor studies assess both PAR and MEP acutely and also incorporate CPSP severity in their analyses.
METHODS: Using a systematic search, we examined associations between 2 acute pain measures (pain at rest [PAR] and movement-evoked pain [MEP]) and CPSP outcomes (considering severity vs. any "nonzero" pain only) in 22 studies.
RESULTS: Seven studies reported the relationship between CPSP and both PAR and MEP. Of these, 2/7 reported no association, 3/7 reported significant associations for both PAR and MEP, 1/7 reported an association for PAR only, and 1/7 reported an association for MEP only. Six of another 7 studies reporting only the association for MEP found a significant relationship. Three of the 5 studies that did not specify whether acute pain outcomes were PAR or MEP reported a significant relationship. Another 3 studies reporting a relationship with CPSP did not specify whether this was for PAR, MEP, or both. All investigations incorporating severity of CPSP in their analyses (n=7) demonstrated a significant relationship, whereas only 10 of the 15 studies that dichotomized CPSP outcome as "no pain" versus "any"/"nonzero pain" were positive.
CONCLUSIONS: Overall, evidence for an association between acute and chronic pain is moderate at best. However, closer attention to pain measurement methods will clarify the relationships between acute pain and CPSP. We propose that future CPSP predictor studies assess both PAR and MEP acutely and also incorporate CPSP severity in their analyses.