Ventricular Shunt Reference
Last Updated: August 27, 2019
The layout of this chapter is broken down by the manufacturing company of the shunt listed in alphabetical order. Images of each shunt valve on standard radiography are provided. Images demonstrating the various shunt settings are also available for reference.
Aesculap
proGAV Valve
The valve settings for this unit numerically correspond to the associated opening pressure.
proGAV 2.0 Valve
The valve settings for this unit numerically correspond to the associated opening pressure.
proSA Gravitational Unit
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.
Codman
Certas Plus Valve
| 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 |
Hakim Programmable Valve
The valve settings for this unit numerically correspond to the associated opening pressure.
Medtronic
PS Medical CSF-Flow Control Valve
| Valve Setting | Opening Pressure Setting (cm H2O) |
| Low-Low Pressure | 1 |
| Low Pressure | 3 |
| Medium Pressure | 8.5 |
| High Pressure | 14.5 |
Delta Valve
| 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 |
Strata II Valve
| 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 |
Strata NSC Valve
| 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 |
Strata MR Valve
| Valve Setting | Opening Pressure (cm H2O) |
| 0.5 | 1.5 |
| 1.0 | 3.5 |
| 1.5 | 9.0 |
| 2.0 | 14.5 |
Sophysa
Polaris Valve
| 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 this reference.
Contributor: Benjamin K. Hendricks, MD
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