Table of Contents
What is the purpose of EVD?
An external ventricular drain (EVD) is a temporary method that uses gravity to drain cerebrospinal fluid (CSF) out of compartments in the brain, called ventricles, via a thin tube that goes out of the head into a chamber and bag.
What is a ventricular catheter?
VentriClear EVD Catheters External ventricular drainage (EVD) catheters act as a pathway to drain CSF from the patient’s ventricles to help relieve intracranial pressure. EVD catheters are connected to an external drainage and monitoring system.
When is an EVD placed?
Indications. EVD placement can be a lifesaving procedure for patients with neurologic decline from acute hydrocephalus, which is caused by a variety of intracranial conditions, including but not limited to intraventricular and subarachnoid hemorrhage, meningitis, brain tumors, and ventriculoperitoneal shunt failure.
Does EVD damage the brain?
Conclusion: EVD insertion, even when there are no clinically important complications, causes a tissue reaction with minimal bleedings and small areas of brain edema.
Can an EVD drain blood?
EVDs are used in neuro critical care situations to: Relieve elevated intracranial pressure (ICP) Drain infected CSF. Drain bloody CSF or blood after surgery or hemorrhage.
When should EVD be removed?
Once the patient has the EVD clamped, observe for signs and symptoms of increased ICP, CSF leak at dressing site and ensure the dressing is dry and intact. Removal of EVD- When it is determined that the patient can have the EVD removed; this is completed by a member of the Neurosurgery team on the unit.
What color is CSF leak?
The classic presentation of CSF leaks is the expression of clear, watery drainage from the nose. This occurs usually on one side; however if fluid drains into the back of the throat there may be a salty taste. Drainage also tends to increase when bending over or straining.
What happens if fluid on the brain is left untreated?
Contents. Hydrocephalus is a build-up of fluid in the brain. The excess fluid puts pressure on the brain, which can damage it. If left untreated, hydrocephalus can be fatal.
How do doctors fix a CSF leak?
Epidural blood patch. This treatment involves taking a sample of your own blood, then injecting it into the spinal canal. The blood cells form a clot, which creates a patch to cover the area where the CSF is leaking.
What is the ventriclear™ II external ventricular drainage catheter set?
The VentriClear™ II External Ventricular Drainage (EVD) Catheter Set allows for external access and drainage of cerebrospinal fluid (CSF) from the ventricles of the brain.
What is the ventriclear I antibiotic impregnated EVD catheter?
The VentriClear™ I Antibiotic Impregnated EVD Catheter allows for external access and drainage of CSF from the ventricles of the brain. Like the VentriClear II EVD catheter, the VentriClear I EVD catheter consists of silicone elastomer impregnated with the antimicrobial agents minocycline and rifampin to inhibit bacterial colonization.
Why is product development of catheters for temporary external ventricular drainage so demanding?
Product development of catheters for temporary external ventricular drainage is extremely demanding in terms of the properties of materials used as well as the precision craftsmanship required.
What is an EVD catheter used for?
They feature larger diameter flow holes and larger inside diameter to minimize possible obstruction. The VentriClear™ II External Ventricular Drainage (EVD) Catheter Set allows for external access and drainage of cerebrospinal fluid (CSF) from the ventricles of the brain.