The overall aim of the registry is to develop a longitudinal, observational database that is focused on adult patients with Normal Pressure Hydrocephalus (NPH) that can be used as a source of clinical information for individual surgeons, as well as a national data repository for scientific inquiry and publications.

This is a prospective, multi-center, observational database to collect data on the characteristics, management practices, and patient outcomes of NPH patients. It will be offered to a geographically representative group of U.S. physicians who will enroll NPH patients. The physician makes his/her own clinical decisions; thus, the data captured provides current practice patterns related to diagnosis, management, and results. The registry may also assist physicians in patient follow-up and certain practice management tasks. The data collected will serve to inform the medical community on optimal care for this patient population

Inclusion Criteria:

• Patient meets the diagnosis criteria for Normal Pressure Hydrocephalus
• Patient is a candidate for a hydrocephalus shunt system, per the discretion of the investigator
• Patient or legal representative has signed an informed consent form. Competency to sign the consent form will be left up to the discretion of the investigator

Exclusion Criteria:

• Patient is under the age of 18 years
• Patient has a known contraindication for a shunt
• Patient has an expected life span of less than 24 months
• Patient has an unwillingness or inability to return for required follow-up visits

NPH patient who is a candidate for a shunt. Can not be under that age of 18, have a known contraindication for a shunt, or have an expected life span of less than 24 months.