EVD-020 With a Lumbar Catheter: One System, Two Drainage Routes

The DESU EVD-020 Series is an external drainage system designed to be used with either a ventricular or a lumbar catheter. Paired with the DESU lumbar drainage catheter kit, it lets a hospital manage ventricular and external lumbar drainage on one collection system, with one pressure scale, drip chamber, drainage bag and filter to learn, stock and support.

What is in the EVD-020 system?

The EVD-020 Series brings the main parts of an external drainage setup together in one system: a pressure scale, a drip chamber, a drainage bag and a filter. It is intended to be connected to a ventricular catheter for external ventricular drainage, or to a lumbar catheter for external lumbar drainage.

For lumbar drainage, the lumbar drainage catheter kit supplies the catheter and application components. Its catheter is 80 cm of silicone, with tantalum marks from 5 to 20 cm and 24 drainage holes, and it is available in standard and antibiotic-impregnated versions. The antibiotic-impregnated version, like other DESU antibiotic-impregnated catheters, is orange and designed to release the agent in a controlled way over 28 days.

Hospitals that prefer a dedicated ventricular system can use the EVD-010 Series, which includes a 31 cm ventricular catheter, a 30 cm measuring scale, a 150 ml drip chamber and an 800 ml drainage bag. Some accounts use both: EVD-010 as the standard neuro-ICU ventricular drain and EVD-020 wherever one system needs to serve both routes. The exact configuration for each order is best confirmed with a DESU product specialist.

When do teams use lumbar rather than ventricular drainage?

The choice of route is a clinical decision made by the treating team, following its protocols. In general terms, external lumbar drainage is used to divert CSF from the lumbar subarachnoid space when the CSF pathways communicate and there is no contraindication to lumbar access. Situations in which teams commonly consider it include:

• managing or reducing the risk of CSF leaks after some skull base and spine procedures;
• temporary CSF diversion in selected patients with communicating hydrocephalus;
• assessment protocols in which a period of lumbar drainage helps the team judge whether a patient may benefit from shunting;
• some vascular surgery protocols in which CSF drainage is part of spinal cord protection.

Ventricular drainage remains the route for obstructive hydrocephalus and for many patients with hemorrhage or raised intracranial pressure who need monitoring as well as drainage. Lumbar drainage is generally avoided when there is a risk of downward herniation, which is why the route decision always belongs to the clinicians.

Why does one collection system for two routes matter?

Most neuro-ICUs see both kinds of drain. If each route uses a different collection system, nurses must learn two sets of components, supply chain must stock two product families, and educators must run two sets of in-services. One system for both routes reduces that load.

The benefit is real but should not be overstated. A shared system does not remove the clinical differences between the two routes. It simply means nurses are working with familiar hardware while they concentrate on what is different: the order, the reference point and the patient.

What differs at the bedside between the two routes?

Even with the same collection system, lumbar and ventricular drains are managed differently, and every in-service should make the differences explicit.

The reference point and the drainage order follow the hospital's protocol for each route. Ventricular drains are usually leveled to an external landmark that approximates the level of the ventricles. Lumbar drains are often managed with an order that specifies a height, a volume per hour or both, depending on the indication and the team's practice. Nurses must know which applies to the patient in front of them.

Position changes deserve particular attention with lumbar drains. A patient who sits up or is moved without the system being adjusted or clamped can drain more than intended. The same principle applies to ventricular drains, but the order and the risks may differ, so the clamping rules should be spelled out for each route.

Above all, the line must be labeled by route. When two patients in the same unit have identical collection systems, one ventricular and one lumbar, a clear label at the catheter connection, on the scale and on the bag prevents confusion at handoff and during transport.

How should a distributor present the two-route approach to an account?

Start with the neuro-ICU nurse educator, who will feel the training and handoff benefits most directly. Then involve supply chain, which sees the inventory simplification. Neurosurgeons will care about catheter choice and whether the system supports their protocols for each route.

Lumbar drainage also opens doors beyond neurosurgery. Spine surgeons, skull base and ENT teams, and in some hospitals vascular surgeons and anesthesiologists, are involved in lumbar drain placement or management. A distributor who brings one coherent system for both routes has a reason to meet these teams and a clear story to tell them.

What questions do accounts ask about a two-route system?

When a distributor presents one drainage system for both routes, the same questions tend to come up. Preparing clear answers, drawn from the instructions for use and confirmed with the manufacturer, makes the conversation easier:

• Which catheters can be connected to the system, and are the connections the same for both routes?
• How do we tell a lumbar line from a ventricular line at a glance, especially during transport?
• Can we keep one par level for the collection system and separate par levels for each catheter type?
• Are antibiotic-impregnated versions available for both the ventricular and the lumbar catheter?
• What does the filter do, and what should nurses do if it becomes wet?
• Who answers our technical questions, and how quickly?

Some of these questions have product answers, and some have protocol answers. The distributor's job is to make sure the hospital receives accurate product information and then supports the team as it writes or updates its own protocols for each route.

What should the in-service cover?

A two-route in-service works best as one core session on the collection system and a short module for each route:

• core: assembling and mounting the EVD-020, reading the pressure scale, positioning the drip chamber, emptying into the drainage bag, handling the filter as the instructions for use describe, changing the bag while keeping the system closed;
• ventricular module: leveling to the ordered landmark, clamping rules for transport and repositioning, recognizing the orange antibiotic-impregnated catheter;
• lumbar module: the lumbar drainage catheter, its tantalum marks, orders by height or volume, position changes and clamping, signs to report to the team;
• labeling: how the unit marks the route on the line, scale and bag.

Close with a hands-on check in which each nurse sets up the system for both routes and explains the differences back to the educator.

Talk to a DESU product specialist

If your accounts manage both ventricular and lumbar drains, talk to DESU about using the EVD-020 Series and the lumbar drainage catheter kit as one drainage approach. A product specialist can confirm configurations, share training material and discuss supply for your market. Write to sales@desu.tr or use the contact page.