Masui. The Japanese journal of anesthesiology
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Peripheral nerve block (PNB) is now widely performed in operating room by anesthesiologists. PNB is associated with multiple benefits compared to general anesthesia, but we should consider the complications of PNB. ⋯ Ultrasound guided PNB has become very popular now, and it has many potential advantages, such as direct visualization of nerves and anatomical structures, and direct and indirect visualization of spread of local anesthetics during injection with the possibility of repositioning the needle in case of maldistribution of local anesthetic. The half of these complications can be prevented by use of ultrasound guided PNB.