A teardrop-shaped island cast adrift in the Indian Ocean, Sri lanka is filled with cultural and natural treasures. Indians, Portuguese, Dutch and British have all left their marks here, making for a delightful mix of ancient cities, monuments and grand colonial architecture.
An external ventricular drain (EVD) is a temporary drain that drains cerebro-spinal fluid (CSF) from the lateral ventricles in the centre of the brain to an external reservoir. The EVD consists of a thin plastic tube (catheter) which is placed into the ventricles of the brain and connected to an external drainage system. The two main reasons EVDs are inserted are:
If you place the EVD below the patient, you will normally see an increase of CSF drainage, due to gravity. For this reason, most EVD protocols recommend clamping it with any changes in patient's position that may place the EVD below the patient. Jun 12, '14.