| GAV - recommended pressure levels
The GAV is available in six different pressure configurations. It is MRI-safe and calibrated in accordance with strict quality control standards.
recommended pressure levels GAV (pdf) |
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| recommended pressure levels |
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| The required opening pressure of the GAV depends on the individual patient's age, mobility, height and the body shape: |
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Age |
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Mobility |
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Height |
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Body shape |
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recommended pressure level
in cmH2O |
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mobil  e |
less than 1,60 m |
adipose |
4 / 24 paediGAV |
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slim |
5 / 30 |
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greater than 1,60 m |
adipose |
5 / 30 |
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slim |
5 / 35 |
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immobile |
less than 1,60 m |
adipose |
4 / 24 paediGAV |
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slim |
4 / 24 paediGAV |
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greater than 1,60 m |
adipose |
4 / 24 paediGAV |
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slim |
5 / 30 |
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less than 1,60 m |
adipose |
4 / 24 paediGAV |
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slim |
5 / 30 |
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1,60 m to 1,80 m |
adipose |
5 / 30 |
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slim |
5 / 35 |
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greater than 1,80 m |
adipose |
5 / 30 |
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slim |
5 / 40 |
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smaller than 1,60 m |
adipose |
4 / 24 paediGAV |
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slim |
5 / 30 |
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greater than 1,60 m |
adipose |
4 / 24 paediGAV |
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slim |
5 / 30 |
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Reading the pressure setting from an X-ray image
Every single pressure configuration is individually coded and can be identified on the GAV in an X-ray image post-operatively.
Fig.1 shows the X-ray image of a GAV
(10 / 40 cmH2O).
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Fig. 1  |
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| The GAV is available in the following pressure settings: |
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opening pressure horizontal / vertical position (cmH2O) |
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coding GAV in X-ray image |
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5 / 30 |
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5 / 35 |
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5 / 40 |
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10 / 30 |
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10 / 40 |
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