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Cohort study evaluates CSF tap test for predicting shunt responsiveness in normal pressure hydrocephalus, suggesting its diagnostic utility may be unclear.
Background: The cerebrospinal fluid tap test (CSF-TT) is widely used as an ancillary test to identify patients with idiopathic Normal Pressure Hydrocephalus (iNPH) for surgical management; however, its diagnostic utility remains unclear. We evaluate the diagnostic utility of CSF-TT in predicting outcomes following shunt surgery.
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Poudel et al. (2026) studied this question.
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