Evidence map›Paper›PMID 40469357›Full record

ArticleSurgical neurology international2025

Cerebrospinal fluid diversion procedure utilization and physician reimbursement in adult hydrocephalus patients.

Melanie Alfonzo Horowitz, Linda Tang, Nolan J Brown, Saarang Patel, Mohammad Faizan Khan, Sachiv Chakravarti, Mohammad Mirahmadi Eraghi, Zach Pennington, Julian Lassiter Gendreau, Benjamin D Elder

Abstract read
In one paragraph

Article in Surgical neurology international, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Melanie Alfonzo HorowitzDepartment of Neurosurgery, Johns Hopkins School of Medicine, Baltimore, Orange, United States.
Linda TangDepartment of Neurosurgery, Johns Hopkins School of Medicine, Baltimore, Orange, United States.
Nolan J BrownDepartment of Neurosurgery, University of California, Irvine, Orange, United States.
Saarang PatelDepartment of Biological Sciences, Seton Hall University, South Orange Village, United States.
Mohammad Faizan KhanDepartment of Neurosurgery, Indiana University School of Medicine, Indianapolis, United States.
Sachiv ChakravartiDepartment of Neurosurgery, Johns Hopkins School of Medicine, Baltimore, Orange, United States.
Mohammad Mirahmadi EraghiSchool of Medicine, Qeshm International Branch, Islamic Azad University, Qeshm, Iran.
Zach PenningtonDepartment of Neurosurgery, Mayo Clinic, Rochester, United States.
Julian Lassiter GendreauDepartment of Neurosurgery, Johns Hopkins School of Medicine, Baltimore, Orange, United States.
Benjamin D ElderDepartment of Neurosurgery, Mayo Clinic, Rochester, United States.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: As the population continues to age, the number of adults receiving care for hydrocephalus is expected to increase. Here, we assess trends in the utilization and physician reimbursement for ventriculoperitoneal shunts (VPS), lumboperitoneal shunting (LPS), and endoscopic third ventriculostomy (ETV) for adult hydrocephalus. Methods: The Medicare Part B National Summary Data files from 2000 to 2021 were collected, and information was extracted on procedures performed per year, total charges billed, and actual payments. Linear mixed-model regression analyses were conducted to assess the significance of changes in procedural volume and physician reimbursement over time while adjusting for inflation. Results: Over the period studied, there was a 26% increase in VPS placement ( Conclusion: Medicare reimbursement data shows that a commensurate decline in physician reimbursement has accompanied the ongoing rise in adult hydrocephalus procedures.

Indexed as

Cerebrospinal fluid diversionHydrocephalusMedicareNeurosurgeryPhysician reimbursement

Identifiers

PMID40469357
PMCPMC12134805

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.