RT Book, Section A1 Rahmani, Redi A1 Lawton, Michael T. A1 Vates, G. Edward SR Print(0) ID 1201301546 T1 Indications T2 External Ventricular and Lumbar Drains: Indications, Procedures, and Patient Care YR 2024 FD 2024 PB McGraw Hill PP New York, NY SN 9781264268290 LK neurology.mhmedical.com/content.aspx?aid=1201301546 RD 2024/09/11 AB CHAPTER SUMMARYTo understand the use of external ventricular drains (EVDs) and lumbar drains (LDs), one must be comfortable with the ventricular anatomy and cerebrospinal fluid (CSF) flow. Obstructive hydrocephalus is a state in which CSF flow is blocked within the ventricular system, whereas communicating hydrocephalus occurs when a blockage develops outside of the ventricular system. The indications for EVDs and LDs have expanded over the years beyond treating hydrocephalus. These drains are now used to monitor intracranial pressure and to treat CSF leak, delayed cerebral ischemia, intraventricular hemorrhage, central nervous system infection, and spinal cord reperfusion.