a procedure which is used to diagnose and sometimes to treat certain pain disorders involving your head, shoulder, or arm
a type of sympathetic nerve block
A block that is performed to determine if there is damage to the sympathetic nerve chain that supplies the head, neck, chest and arms and if it is the source of a person's pain in those areas.
A procedure designed to relieve pain caused by overactivity of the sympathetic nervous system in the upper extremities, the head or the neck. A local anesthetic is injected into the front of the neck to block sympathetic nerves without blocking sensory pathways.