Evidence map›Paper›PMID 30064442›Full record

ArticleFluids and barriers of the CNS2018

Characteristics of the cerebrospinal fluid pressure waveform and craniospinal compliance in idiopathic intracranial hypertension subjects.

Monica D Okon, Cynthia J Roberts, Ashraf M Mahmoud, Andrew N Springer, Robert H Small, John M McGregor, Steven E Katz

Open access · goldAbstract read
In one paragraph

Article in Fluids and barriers of the CNS, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.2field-weighted citation impact, top 22% of its field
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

15 citing papers in PubMed, 26 citations in OpenAlex.

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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

7 authors at 1 institution in 1 country.

Monica D OkonDepartment of Biomedical Engineering, The Ohio State University, 1080 Carmack Rd, Columbus, OH, 43210, USA.
Cynthia J RobertsDepartment of Biomedical Engineering, The Ohio State University, 1080 Carmack Rd, Columbus, OH, 43210, USA. roberts.8@osu.edu.
Ashraf M MahmoudDepartment of Biomedical Engineering, The Ohio State University, 1080 Carmack Rd, Columbus, OH, 43210, USA.
Andrew N SpringerDepartment of Anesthesiology, The Ohio State University, 410W. 10th Avenue, Columbus, OH, 43210, USA.
Robert H SmallDepartment of Biomedical Engineering, The Ohio State University, 1080 Carmack Rd, Columbus, OH, 43210, USA.
John M McGregorDepartment of Neurosurgery, The Ohio State University, 1581 Dodd Drive, Columbus, OH, 43210, USA.
Steven E KatzOhio Neuro-Ophthalmology, Orbital Disease & Oculoplastics, 3545 Olentangy River Rd, Suite 200, Columbus, OH, 43214, USA.
The Ohio State University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIdiopathic intracranial hypertension (IIH) is a condition of abnormally high intracranial pressure with an unknown etiology. The objective of this study is to characterize craniospinal compliance and measure the cerebrospinal fluid (CSF) pressure waveform as CSF is passively drained during a diagnostic and therapeutic lumbar puncture (LP) in IIH.

methodsEighteen subjects who met the Modified Dandy Criteria, including papilledema and visual field loss, received an ultrasound guided LP where CSF pressure (CSFP) was recorded at each increment of CSF removal. Joinpoint regression models were used to calculate compliance from CSF pressure and the corresponding volume removed at each increment for each subject. Twelve subjects had their CSFP waveform recorded with an electronic transducer. Body mass index, mean CSFP, and cerebral perfusion pressure (CPP) were also calculated. T-tests were used to compare measurements, and correlations were performed between parameters.

resultsCerebrospinal fluid pressure, CSFP pulse amplitude (CPA), and CPP were found to be significantly different (p < 0.05) before and after the LP. CSFP and CPA decreased after the LP, while CPP increased. The craniospinal compliance significantly increased (p < 0.05) post-LP. CPA and CSFP were significantly positively correlated.

conclusionsBoth low craniospinal compliance (at high CSFP) and high craniospinal compliance (at low CSFP) regions were determined. The CSFP waveform morphology in IIH was characterized and CPA was found to be positively correlated to the magnitude of CSFP. Future studies will investigate how craniospinal compliance may correlate to symptoms and/or response to therapy in IIH subjects.

Indexed as

Intracranial PressureFollow-Up StudiesHumansIntracranial HypertensionProspective StudiesSpinal PunctureCerebrospinal fluid pressureCerebrospinal fluid pressure pulse amplitudeCerebrospinal fluid pressure waveformComplianceCraniospinal complianceIdiopathic intracranial hypertensionPressure–volume curves

Identifiers

PMID30064442
PMCPMC6069551
OpenAlexW2883416843

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.