Gait Disorder Is the Cardinal Sign of Normal Pressure Hydrocephalus
Why this work is in the frame
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Bibliographic record
Abstract
Normal pressure hydrocephalus (NPH) is one of the few reversible causes of dementia in older adults and accounts for approximately 6% of all dementias. The cardinal sign of NPH is a hypokinetic gait disorder in which the older adult's feet look as though they are glued to the floor. The gait also has been described as magnetic. People with NPH also may have mild dementia and bladder and bowel incontinence. A 78-year-old man exhibited symptoms of NPH for at least 4 years before being diagnosed. A neurological assessment of the patient revealed gait, posture, and balance abnormalities; mild dementia; and urinary urgency, frequency, nocturia, and incontinence at least once a day. His risk factors for NPH included diabetes and hypertension. A computed tomography (CT) scan revealed dilated lateral ventricles in the brain. A lumbar puncture was used to remove 50 ml of cerebrospinal fluid, which resulted in a transient improvement in his gait for approximately 18 hours. A ventriculoperitoneal shunt was then inserted in the patient, and during a 1-year period his symptoms gradually improved. He recovered without any complications and was eventually able to resume his usual activities. When the gait associated with NPH is observed in an older adult, he or she should be referred to a neurologist or multidisciplinary team for a comprehensive evaluation. If an individual receives treatment for NPH, he or she may have an improved quality of life and the opportunity to reduce functional limitations and disability. Families may also experience positive outcomes, such as having a loved one who is cognitively improved and requires less care.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.002 | 0.001 |
| Bibliometrics | 0.001 | 0.002 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.002 | 0.000 |
| Research integrity | 0.000 | 0.002 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it