Vols.

Ventricular Shunt Reference Free

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.

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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 Settings and Corresponding Opening Pressure
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 Settings and Corresponding Opening Pressure
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 Settings and Corresponding Opening Pressure
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 Settings and Corresponding Opening Pressure
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 and Corresponding Opening Pressure
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 and Corresponding Opening Pressure
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

Pressure Ranges for 4 Polaris Models
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

DOI: https://doi.org/10.18791/nsatlas.v2.20

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