Last Updated: April 17, 2021
The layout of this chapter is broken down by the manufacturer of the shunt, listed in alphabetical order. Images of each shunt valve on standard radiography are provided. Images showing the various shunt settings are also available for reference.
Atlas Choice Bipolar Forceps (Coming in Jan, 2023)
Designed for your every surgical maneuver
Five tip sizes for brain and spine procedures
Unparalleled non-stick and low-profile features
The valve settings for this unit numerically correspond to the associated opening pressure.
The valve settings for this unit numerically correspond to the associated opening pressure.
The valve settings for this unit numerically correspond to the associated opening pressure when not combined with a differential pressure unit in the shunt system.
| Valve Setting | Opening Pressure Setting (cm H2O) |
| 1 | 2.0–2.5 |
| 2 | 4.4–5.5 |
| 3 | 7.5–8.0 |
| 4 | 11–12 |
| 5 | 14–14.5 |
| 6 | 17–18 |
| 7 | 21–22.5 |
| 8 | >40 |
The valve settings for this unit numerically correspond to the associated opening pressure.
| Valve Setting | Opening Pressure Setting (cm H2O) |
| Low-Low Pressure | 1 |
| Low Pressure | 3 |
| Medium Pressure | 8.5 |
| High Pressure | 14.5 |
| Valve Setting | Opening Pressure (cm H2O) | |
| Lying | Standing | |
| 0.5 | 1.5 | 3.0 |
| 1.0 | 3.5 | 5.0 |
| 1.5 | 7.0 | 8.5 |
| 2.0 | 10.5 | 12.0 |
| Valve Setting | Opening Pressure (cm H2O) | |
| Lying | Standing | |
| 0.5 | 1.5 | 3.0 |
| 1.0 | 3.5 | 5.0 |
| 1.5 | 7.0 | 8.5 |
| 2.0 | 10.5 | 12.0 |
| 2.5 | 13.5 | 14.7 |
| Valve Setting | Opening Pressure (cm H2O) |
| 0.5 | 1.5 |
| 1.0 | 3.5 |
| 1.5 | 9.0 |
| 2.0 | 14.5 |
| 2.5 | 20.0 |
| Valve Setting | Opening Pressure (cm H2O) |
| 0.5 | 1.5 |
| 1.0 | 3.5 |
| 1.5 | 9.0 |
| 2.0 | 14.5 |
| Models | SPV-140 | SPV | SPV-300 | SPV-400 | |
|
Pressure Setting Dots (mm H2O) |
Position 1 | 10 | 30 | 50 | 80 |
| Position 2 | 40 | 70 | 100 | 150 | |
| Position 3 | 80 | 110 | 150 | 230 | |
| Position 4 | 110 | 150 | 220 | 330 | |
| Position 5 | 140 | 200 | 300 | 400 | |
For additional examples of the appearance of a variety of shunt valves on imaging, please see "Imaging Appearances of Programmable Ventricular Shunt Systems: What the Radiologist Needs To Know."
Contributor: Benjamin K. Hendricks, MD
Please login to post a comment.
Be sure to follow us on social media for exciting content and stay updated on LIVE sessions with Dr. Cohen, questions on surgical technique, and more!
You must be logged in to view this material.
Sign up now to access the most comprehensive collection of advanced microneurosurgical techniques. The Neurosurgical Atlas collection presents the nuances of technique for complex cranial and spinal cord operations.
The Neurosurgical Atlas depends almost entirely on your donations.
We are unable to continue the Atlas without a significant donation from you.
Please commit at least a yearly $250 donation to the Atlas.Without this commitment, the Atlas will soon require a paid subscription and will become inaccessible to many surgeons around the world whose patients’ care depend on it.
Please donate now!
We are unable to continue the Atlas without a significant donation from you. Please commit at least a yearly $250 donation to the Atlas.
Without this commitment, the Atlas will soon require a paid subscription and will become inaccessible to many surgeons around the world whose patients’ care depend on it. Please donate now!
