. Local and regional anesthesia : with chapters on spinal, epidural, paravertebral, and parasacral analgesia, and on other applications of local and regional anesthesia to the surgery of the eye, ear, nose and throat, and to dental practice. ntal fascia,transversely for about 1 inch; or, where both nerves are to be in-jected, this can be done by a subfascial injection, extending across thebase of the forehead, as indicated in Fig. 146, the shaded portionindicating the anesthetic area; on the margins of this area for somedistance back there is lessened sensibility. While it is quite feasibleto
. Local and regional anesthesia : with chapters on spinal, epidural, paravertebral, and parasacral analgesia, and on other applications of local and regional anesthesia to the surgery of the eye, ear, nose and throat, and to dental practice. ntal fascia,transversely for about 1 inch; or, where both nerves are to be in-jected, this can be done by a subfascial injection, extending across thebase of the forehead, as indicated in Fig. 146, the shaded portionindicating the anesthetic area; on the margins of this area for somedistance back there is lessened sensibility. While it is quite feasibleto practice strictly regional anesthesia for the entire scalp by blockingthe supra-orbital nerves in front, the occipital nerves behind, and thetemporal nerves on the side by a line of anesthesia just above thezygoma, extending from the ear to the angle of the orbit and carrieddown to beneath the temporal fascia, thus rendering the entire scalp 476 LOCAL ANESTHESIA anesthetic. This procedure limited to one side produces an anesthesiareaching almost to the vertex, where the nerves of the opposite sidelap over. Such an extensive area of anesthesia is, however, not oftencalled for, while those parts supplied by the supra-orbital and occip-. Fig. 146.—Resulting area of anesthesia after blocking supra-orbital and supratrochlearnerves along heavily shaded line. (From Braun.) ital nerves will more often be found quite useful, easily and quicklycarried out; but where the field of operation is more or less centralon the scalp, it will, however, usually be found simpler and require lesssolution to surround the operative area by a wall of anesthesia carried
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectanesthe, bookyear1914
