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Table 2 Reasons for performing valve adjustments and number of adjustments

From: Initial experience with the Codman Certas adjustable valve in the management of patients with hydrocephalus

Reason for adjustment

Number of adjustments

Optimising clinical status due to clinical symptoms of:

 

Normal pressure hydrocephalus

10

Over drainage

7

Under drainage

10

CT- results showing large ventricles

9

Hygromas

5

Diminished hygromas

5

Non-specific headache

17

Dizziness

8

Total

71