. 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. ed by It is rather unsafe and inadvisable to attempt to reach it fromin front (except by dissection) on account of the proximity of the ulnarvessels, which here he slightly more superficial than the nerve andslightly to the radial side. Figure 36, VII and VIII, indicate the extentof the resulting anesthesia after an injection of 1 of a
. 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. ed by It is rather unsafe and inadvisable to attempt to reach it fromin front (except by dissection) on account of the proximity of the ulnarvessels, which here he slightly more superficial than the nerve andslightly to the radial side. Figure 36, VII and VIII, indicate the extentof the resulting anesthesia after an injection of 1 of a per cent,cocain solution with 3 drops of adrenalin (1: 1000) as practiced byBraun in the above-mentioned way. It may, however, be easier and 234 LOCAL ANESTHESIA preferable, instead of injecting the nerve at this point to reach it backof the internal condyle. In thin subjects, where the nerve can bereadily felt, a paraneural injection may be undertaken by first locatingthe nerve between the thumb and finger of one hand while making theinjection with the other; the inferior profunda artery, which lies inthis position, is more deeply situated in the muscle just over thebone. The following experiments by Braun illustrates the result ob-. Fig. 36.—Resulting areas of anesthesia of hand and fingers from subcutaneous andparaneural injections. (From Braun.) tained, while Experiment 9 is a paraneural injection of the ulnar andmedian nerves above the wrist: Experiment 8 (May 13, 1902, Dr. L.). 12 : 50 oclock injection of 1 of 2 per cent,cocain solution in the previously mentioned way. No constriction. Immediately pares-thesia and sense of warmth as far as the ends of the fourth and fifth fingers. After sixminutes complete regional anesthesia of the skin occurred, as indicated in Fig. returned fifty minutes after the injection. Experiment 9 (Dec. 9, 1902, medical student). One cubic centimeter of 1 per cent,cocain solution with 3 drops of adrenalin solution was inj
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