The observed differences between clinical and ultrasonic identification of spinal puncture level highlight the potential for serious complications associated with the performance of neuraxial blocks above the spinous process of L3 in the parturient. With the increase in popularity of techniques involving puncture of the dura mater for labour anaesthesia, we feel that awareness of this risk is important.
The microvibration-based aerosol humidification device may be used to deliver local anesthetics during laparoscopic procedures. Further research is necessary to confirm these results in clinical practice and to provide effective humidification that does not blur the surgeon's view.
Cold humidification of insufflating CO(2) prevents heat loss associated with pneumoperitoneal insufflation at least as efficaciously as warmed humidification of the gas.
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