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Table 4 Comparison of the shunt management as measured by improvement in the Kiefer score, of the shunt-insufficiency group and the group of secondary non-responders, after exclusion of the patients with overdrainage

From: Secondary deterioration in patients with normal pressure hydrocephalus after ventriculoperitoneal shunt placement: a proposed algorithm of treatment

 

Shunt insufficiency (N = 14)

Secondary non-responder (N = 26)

Test and p-value

Valve pressure setting (N)

5 (36%)

12 (46%)

Fisher’s exact test

p = ns

Valve pressure setting + shuntography (N)

3 (21%)

7 (27%)

Fisher’s exact test

p = ns

Valve pressure setting + shuntography + implantation of an adjustable ASD (N)

6 (43%)

7 (27%)

Fisher’s exact test

p = ns

  1. ASD anti-siphon-device