Natural History, Treatment Outcomes and Quality of Life in Idiopathic Normal Pressure Hydrocephalus (iNPH)
Bibliographic record
Abstract
BACKGROUND: The natural history and treatment outcomes in adult patients with hydrocephalus is a broad and heterogeneous topic that encompasses the natural history of the various subtypes of adult hydrocephalus with or without treatment; their surgical operative results, including symptom improvements, treatment failure, short- and long-term complications, and reoperations; and morbidity, mortality, and patient-centered health-related quality of life (HRQoL). OBJECTIVE, METHODS, AND MATERIALS: The objective of this review is to present a current update on the natural history and treatment outcomes, including QoL, for adults with hydrocephalus with a focus on patients with idiopathic normal pressure hydrocephalus (iNPH). A nonsystematic review of relevant literature was summarized. RESULTS AND CONCLUSIONS: The natural history for untreated patients with iNPH is poor, with both increased mortality and morbidity. It is strongly recommended that practitioners follow established guidelines to select patients with suspected iNPH while using objective measures of gait, balance, and cognition for consideration of treatment with a CSF shunt. Other factors such as patient-related medical comorbidities or frailty may need to be factored into the decision-making process before surgical treatment is offered. As a rule, failure to select patients based on the identified guidelines will result in a significantly lower positive response to treatment with a CSF shunt. Over 90% of iNPH patients who undergo CSF-shunt treatment demonstrate symptomatic relief after surgery, and long-term studies have shown that in most patients, the clinical improvements are long-lasting, with over 70% demonstrating improvement longer than 6 years after treatment. There is no evidence to support the routine use of endoscopic third ventriculostomy (ETV) to treat patients with iNPH. There is limited data regarding HRQoL in patients with iNPH. In addition to objective measures of outcomes focused on gait and cognition, it is equally important for future studies to assess patient-centered subjective measures of HRQoL.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.003 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".