Chronic Headache and Chronic Backache Following Unintentional Dural Puncture at Delivery Room.

"An epidural blood patch is a surgical procedure that uses autologous blood in order to close one or many holes in the dura mater of the spinal cord, usually as a result of a previous lumbar puncture. A small amount of the patient's blood is injected into the epidural space near the site of the original puncture; the resulting blood clot then patches the meningeal leak. An epidural needle is inserted into the epidural space at the site of the cerebrospinal fluid leak and blood is injected. The clotting factors of the blood close the hole in the dura."