In the United States Navy, these consist of ships commissioned with hull classification symbols CV (aircraft carrier), CVA (attack aircraft carrier), CVB (large aircraft carrier), CVL (light aircraft carrier), CVN (aircraft carrier (nuclear propulsion)) and CVAN (attack aircraft carrier (nuclear propulsion)).
A cervical epidural steroid injection delivers steroids into the epidural space surrounding spinal nerve roots to help alleviate pain in the upper spine/neck. A Spine-health.com Peer Reviewed Article. typical immune response is the body generating white blood cells and chemicals to protect it against infection and foreign substances such as bacteria and viruses. Inhibiting the immune response with an epidural steroid injection can reduce the pain associated with inflammation.
A local nerve block is performed by injecting or applying local anesthetics, such as lidocaine, to a certain area. 1  An epidural is a local nerve block that involves injecting steroids or analgesics into the area that surrounds the spinal cord. Though common during childbirth, an epidural may be also be used to treat chronic neck or back pain caused by a compressed spinal nerve.