Effects of β2 agonists on post-thoracotomy pain incidence - Archive ouverte HAL Access content directly
Journal Articles European Journal of Pain Year : 2015

Effects of β2 agonists on post-thoracotomy pain incidence

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Abstract

BACKGROUND: Pre-clinical research has shown beta2 -adrenoceptors to be essential for the antiallodynic action of antidepressant drugs in murine models of neuropathic pain and that sustained treatment with beta2 -agonists has an antiallodynic action. Here, we clinically investigated whether chronic beta2 -agonist treatments may influence the incidence of post-thoracotomy chronic pain, defined as pain that recurs or persists along a thoracotomy scar more than 2 months after surgery, either neuropathic or non-neuropathic. METHODS: We conducted an epidemiological study on patients operated by thoracotomy. Demographic data, medical history and treatments concomitant to the surgery were recorded at a follow-up visit. Information on perioperative treatments was collected from the anaesthesia records and confirmed by the patients. In patients with pain at the surgery level, post-thoracotomy chronic pain was assessed by clinical examination and numeric scale. Physical examination and DN4 questionnaire were used to discriminate neuropathic and non-neuropathic chronic pain at scar level. RESULTS: One hundred and eighty-nine patients were included. Eighty-one patients reported persisting thoracic pain, with neuropathic characteristics in 58 of them (30% of the 189 patients). The most common chronic drugs during the perioperative period were inhaled beta2 -agonists (28.6%). The chronic use of beta2 -agonists was an independent predictor of thoracic neuropathic pain (but not of non-neuropathic pain) and was associated with a five-fold decrease in the relative incidence of neuropathic pain [OR = 0.19 (0.06-0.45)]. CONCLUSIONS: These data suggest a possible influence of chronic beta2 -agonist treatments on neuropathic pain secondary to thoracotomy. This apparent preventive effect of beta2 -agonist treatments should warrant controlled clinical trials.

Dates and versions

hal-03427165 , version 1 (12-11-2021)

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Éric Salvat, B Schweitzer, Gilbert Massard, Nicolas Meyer, Frederic de Blay de Gaix, et al.. Effects of β2 agonists on post-thoracotomy pain incidence. European Journal of Pain, 2015, 19 (10), pp.1428-1436. ⟨10.1002/ejp.673⟩. ⟨hal-03427165⟩
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