Abstract:Birnbach and Danzer [1] have recently published a comment on the production of metallic microparticles by the needle-through-needle technique for combined spinal-epidural anesthesia. They quoted an abstract by Holst et al.[2] dated 1994 reporting that "there were no metallic impurities as detected by atomic absorption measurements." However, in another article by Herman et al. [3] entitled "No additional metal particle formation using needle-through-needle combined epidural/spinal technique" there is a photomi… Show more
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