Conclusions
peripheral nerve block
ADVERSE EFFECTS
In conclusion, our study shows that warming the ropivacaine 0.5% to 30℃ can accelerate the onset time of the ultrasound-guided subgluteal sciatic nerve block whithout obvious adverse effects. Therefore, warming the local anesthetics is a simlpe, safe and effective method to reduce the latency of peripheral nerve block, which is of benefit to shorten patient waiting time in the preoperative room and improve the clinical efficiency in busy surgical settings.