ArticleBMJ open2026
Efficacy of perioperative intravenous lidocaine infusion on postoperative recovery and analgesia in patients undergoing video-assisted thoracoscopic surgery: study protocol for a randomised, double-blind, placebo-controlled trial.
Article in BMJ open, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Abstract
introductionDespite the minimally invasive nature of video-assisted thoracoscopic surgery (VATS), moderate-to-severe postoperative pain remains frequent and impairs recovery. Intravenous lidocaine possesses multimodal analgesic, antihyperalgesic and anti-inflammatory properties that may improve pain control and functional outcomes, but robust evidence in thoracic surgery is lacking. Moreover, its potential to attenuate neuropathic pain, a key component of chronic post-thoracic pain syndromes, has not been adequately investigated. This trial will determine whether continuous perioperative intravenous lidocaine infusion improves recovery, reduces acute pain intensity and prevents the development of neuropathic pain after VATS. METHODS AND ANALYSIS: This single-centre, randomised, double-blind, placebo-controlled trial will enrol 84 adult patients undergoing elective VATS. Participants will be randomised (1:1) to receive either intravenous lidocaine (bolus 1 mg/kg at induction followed by continuous infusion at 1.5 mg/kg/hour intraoperatively and postoperatively for 24 hours) or matched normal saline postoperatively, with identical intraoperative management in both groups. The primary outcome is the incidence of moderate-to-severe movement-evoked pain at 24 hours postoperatively. Secondary outcomes include pain at 48 and 72 hours, opioid consumption, pulmonary complications, sleep quality, quality of recovery, neurocognitive outcomes and chronic neuropathic pain at 3 months. Analyses will follow the intention-to-treat principle. ETHICS AND DISSEMINATION: The study protocol was approved by the Institutional Review Board of Tongji Hospital (Reference No. TJ-IRB202509102) and registered in the Chinese Clinical Trial Registry (ChiCTR2500111163). Written informed consent will be obtained from all participants. Results will be submitted to peer-reviewed journals and academic conferences. TRIAL REGISTRATION NUMBER: ChiCTR2500111163.
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