Acta anaesthesiologica Scandinavica
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Acta Anaesthesiol Scand · Jan 2016
Review Meta AnalysisTachyphylaxis to local anaesthetics. What is the clinical evidence? A systematic review.
Tachyphylaxis or acute tolerance to local anaesthetics has been reported, but the prevalence in clinical analgesia is obscure, and the mechanisms behind this phenomenon remain unclear. We sought to examine the clinical significance of tachyphylaxis from the available literature. ⋯ Studies documenting tachyphylaxis with clinical use of local anaesthetics are surprisingly scarce, and the mechanisms behind it remain unclear.