Korean journal of anesthesiology
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Korean J Anesthesiol · Jul 2012
Ultrasound visibility of regional anesthesia catheters: an in vitro study.
Ultrasound subjective visibility of in-plane needles is correlated with the intensity difference between the needle surface and the background. Regional anesthesia catheters are difficult to visualize by an ultrasound. In the present study, we investigated the ultrasound visibility of the catheters. ⋯ Subjective visibility of catheters can not be evaluated in the same manner as that of the needles. For the best possible visualization, we recommend selecting a catheter with a structure that enhances the dark at the center of catheter, rather than basing the catheter selection on the bore size.
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Korean J Anesthesiol · Jul 2012
Air embolism during off-pump coronary artery bypass graft surgery -A case report-.
There have been several reports of gas embolism occurring during off-pump coronary artery bypass graft (OPCAB) surgery. However, all these cases of air embolism were associated with the repair of venous circulation, using a CO(2) blower. ⋯ There was no injury to the veins during OPCAB. The air embolism was treated successfully with cardiopulmonary bypass.