Shunt reservoir and lumbar CSF biomarkers were compared in 36 iNPH patients.
P-tau, A尾1–38/A尾1–42, and A尾1–42/p-tau in the preoperative CSF can be biomarkers.
Cystatin C and L-PGDS increased after CSF circulation improved after LPS.
Cognitive prognosis improved after synthesis switched from A尾1–42 to A尾1–38.