Simplified paravertebral anesthesia technique and its application

C. Fervers (Zentralbl. F. Chir. No. 37, 1929), in order to avoid complications, inserts the needle with paravertebral anesthesia one finger away from the spinous processes towards the angle formed by the transverse process and the edge of the vertebral body (the outer end of the needle with the midline forms an angle of 20 ° -30 °). The designated angle is located normally in the thoracic part of the spine near the upper edge of the spinous process, in the lumbar part, in the middle of the lower edge of the spinous process. In this way, the needle easily reaches the vertebral wall, and the injected fluid washes the ramus anter. ram. communicans. During operations, the author recommends using paravertebral anesthesia only for unilateral processes, such as appendicitis, cholelithiasis, kidneys and ureters and hernias. For the purposes of differential diagnosis and therapy, paravertebral anesthesia can be used.