Evaluation of the effect of analgesic treatment on signs of nociception-related behaviors during physiotherapy in patients with disorders of consciousness: a pilot crossover randomized controlled trial.

Bonin, Estelle A C;Binda Fossati, Mariachiara L;Filippini, Maria M;Bornheim, Stephen;Chatelle, Camille;et.al.
(2022) PAIN® — Vol. 163, n° 2, p. e349-e356 (2022)

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Authors
  • Bonin, Estelle A Corcid-logo
    Author
  • Binda Fossati, Mariachiara L
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  • Filippini, Maria Morcid-logo
    Author
  • Bornheim, Stephen
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  • Lejeune, Nicolasorcid-logoUCLouvain
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  • Chatelle, Camilleorcid-logo
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Abstract
Neuro-orthopedic disorders are common in patients with disorders of consciousness (DOC) and can lead to potential pain. However, the patients' inability to communicate makes pain detection and management very challenging for clinicians. In this crossover randomized double-blind placebo-controlled study, we investigated the effects of an analgesic treatment on the presence of nociception-related behaviors. At baseline, the Nociception Coma Scale-Revised (NCS-R) was performed in 3 conditions: a non-noxious stimulation, a noxious stimulation, and during a physiotherapy session. Patients with a NCS-R total score during physiotherapy equal or above the score observed after the noxious stimulation could participate to the clinical trial, as well as patients with a score above 5. They received an analgesic treatment and a placebo on 2 consecutive days in a randomized order followed by an assessment with the NCS-R. Of the 18 patients, 15 displayed signs of potential pain during physiotherapy. Patients showed higher NCS-R scores during physiotherapy compared with the other conditions, suggesting that mobilizations were potentially painful. Of these 15 patients, 10 met the criteria to participate in the placebo-controlled trial. We did not find any effect of analgesic treatment on the NCS-R scores. This study highlights that physiotherapy may be potentially painful for patients with DOC, while analgesic treatments did not reduced NCS-R scores. Therefore, careful monitoring with appropriate assessment and treatment before and during mobilization should become a priority in clinical settings. Future studies should focus on the development of assessment tools sensitive to analgesic dosage to manage pain in DOC.
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Bonin, E. A. C., Binda Fossati, M. L., Filippini, M. M., Bornheim, S., Lejeune, N., O’Brien, A. T., Bodart, O., Laureys, S., Thibaut, A., & Chatelle, C. (2022). Evaluation of the effect of analgesic treatment on signs of nociception-related behaviors during physiotherapy in patients with disorders of consciousness: a pilot crossover randomized controlled trial. PAIN®, 163(2), e349-e356. https://doi.org/10.1097/j.pain.0000000000002367 (Original work published 2022)