European journal of anaesthesiology
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Mitochondrial dysfunction is linked to the etiopathogenesis of postoperative delirium (POD), which severely affects the prognosis of elderly patients undergoing surgery. The methylation of mitochondrial DNA (mtDNA), a new and incompletely described phenomenon that regulates the structure and function of mitochondria, is associated with ageing. However, the relationship between mtDNA methylation and POD has not been established. ⋯ These data support the existence of epigenetic mtDNA regulation in POD; however, further studies are required to explore the specific mechanisms.
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Comment Letter
Injuries after cricothyroidotomy using different equipment.
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Intra-operative tachycardia during noncardiac surgery has been associated with adverse postoperative outcomes. However, harm thresholds for tachycardia have not been uniformly defined. The definition of intra-operative tachycardia that best correlates with adverse postoperative outcomes remains unclear. ⋯ Intra-operative tachycardia, defined as an intra-operative HR ≥ 100 bpm for at least 30 min, was associated with the highest predictive power for adverse postoperative outcomes.