Effects of Dexmedetomidine Infusion on Inflammatory Responses and Injury of Lung Tidal Volume Changes during One-Lung Ventilation in Thoracoscopic Surgery: A Randomized Controlled Trial

Mediators of Inflammation
Chun-Yu WuYa-Jung Cheng

Abstract

One-lung ventilation in thoracic surgery provokes profound systemic inflammatory responses and injury related to lung tidal volume changes. We hypothesized that the highly selective a2-adrenergic agonist dexmedetomidine attenuates these injurious responses. Sixty patients were randomly assigned to receive dexmedetomidine or saline during thoracoscopic surgery. There is a trend of less postoperative medical complication including that no patients in the dexmedetomidine group developed postoperative medical complications, whereas four patients in the saline group did (0% versus 13.3%, p = 0.1124). Plasma inflammatory and injurious biomarkers between the baseline and after resumption of two-lung ventilation were particularly notable. The plasma high-mobility group box 1 level decreased significantly from 51.7 (58.1) to 33.9 (45.0) ng.ml-1 (p < 0.05) in the dexmedetomidine group, which was not observed in the saline group. Plasma monocyte chemoattractant protein 1 [151.8 (115.1) to 235.2 (186.9) pg.ml-1, p < 0.05] and neutrophil elastase [350.8 (154.5) to 421.9 (106.1) ng.ml-1, p < 0.05] increased significantly only in the saline group. In addition, plasma interleukin-6 was higher in the saline group than in the dexmedetomidine gro...Continue Reading

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Citations

Oct 4, 2019·The Cochrane Database of Systematic Reviews·Oana CiofuJens Lykkesfeldt
Nov 17, 2020·British Journal of Anaesthesia·Amit JainD John Doyle

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Methods Mentioned

BETA
enzyme-linked immunosorbent assay
sedation

Clinical Trials Mentioned

NCT02439905

Software Mentioned

MedCalc

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