Several simple nerve block anesthesia with one shot are introduced

Cervical plexus block anesthesia method: supine position, head to the opposite side. Puncture in the fourth cervical vertebra transverse process, namely the sternocleidomastoid trailing edge point within the frontal muscle ditch and middle scalene (flat thyroid cartilage), or on the outside of the neck veins and sternocleidomastoid trailing edge point is about 0.5 Cm above, four transverse process can reach the neck (carotid four transverse process mostly round and sharp, with finger after opened the cover of the muscles on the top of the its, can touch). The skin was routinely disinfected. A 7-gauge needle was inserted vertically into the bone of the four transverse processes of the neck, and the depth of the needle was generally 1-1.5 Cm without seeking any sensation. The deeper the needle reaches the transverse process, the better the anesthetic effect. After the needle reached the bone of the transverse process, the needle head was fixed, and 7 ml of anesthetic was injected after no blood and cerebrospinal fluid were withdrawn. Then the needle was returned to the subcutaneous fascia for superficial plexus block: 2 ml of anesthetic was injected above the deep plexus of the fourth transverse process of the neck to block the middle branch. Needle not out of the subcutaneous fascia flat to the needle to the ipsilateral mastoid direction, in the subcutaneous fascia into the side and push 3 ml anesthetic, block rise

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