Evidence map›Paper›PMID 33406142›Full record

ArticlePloS one2021

Characterization of cerebrospinal fluid (CSF) microbiota from patients with CSF shunt infection and reinfection using high throughput sequencing of 16S ribosomal RNAgenes.

Kathryn B Whitlock, Christopher E Pope, Paul Hodor, Lucas R Hoffman, David L Limbrick, Patrick J McDonald, Jason S Hauptman, Jeffrey G Ojemann, Tamara D Simon, Cerebrospinal FLuId MicroBiota in Shunts Study (CLIMB) Group

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
0.9field-weighted citation impact, top 32% 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

8 citing papers in PubMed, 13 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

10 authors at 4 institutions in 2 countries.

Kathryn B WhitlockNew Harmony Statistical Consulting LLC, Shoreline, Washington, United States of America.
Christopher E PopeDepartment of Pediatrics, University of Washington, Seattle, Washington, United States of America.
Paul HodorSeattle Children's Research Institute, Seattle, Washington, United States of America.ORCID 0000-0001-7770-8347
Lucas R HoffmanDepartment of Pediatrics, University of Washington, Seattle, Washington, United States of America.
David L LimbrickDepartment of Neurosurgery, Washington University in St. Louis, St. Louis, Missouri, United States of America.
Patrick J McDonaldDivision of Neurosurgery, University of British Columbia, Vancouver, British Columbia, Canada.
Jason S HauptmanSeattle Children's Research Institute, Seattle, Washington, United States of America.
Jeffrey G OjemannSeattle Children's Research Institute, Seattle, Washington, United States of America.
Tamara D SimonDepartment of Pediatrics, Keck School of Medicine at the University of Southern California, Los Angeles, California, United States of America.ORCID 0000-0003-4734-7020
Cerebrospinal FLuId MicroBiota in Shunts Study (CLIMB) Group
University of Washington · USSt. Louis Children's Hospital · USUniversity of British Columbia · CAUniversity of Southern California · US

Funding

Targeting the CSF microbiota to optimize CSF shunt infection treatmentR01NS095979 · NINDS · SEATTLE CHILDREN'S HOSPITAL · PI SIMON, TAMARA DANIELLE · 2016 to 2020
$2.0M
Patient-oriented microbiome and advanced culture approaches to identifying the microbial determinants of chronic pediatric diseaseK24HL141669 · NHLBI · UNIVERSITY OF WASHINGTON · PI Lucas R Hoffman · 2018 to 2026
$929k
NHLBI NIH HHS K24 HL141669NINDS NIH HHS R01 NS095979
6 · The paper itself

Abstract

backgroundNearly 20% of patients with cerebrospinal fluid (CSF) shunt infection develop reinfection. It is unclear whether reinfections are caused by an organism previously present or are independent infection events.

objectiveWe used bacterial culture and high throughput sequencing (HTS) of 16S ribosomal RNA (rRNA) genes to identify bacteria present in serial CSF samples obtained from children who failed CSF shunt infection treatment. We hypothesized that organisms that persist in CSF despite treatment would be detected upon reinfection. DESIGN/

methodsSerial CSF samples were obtained from 6 patients, 5 with 2 infections and 1 with 3 infections; the study was limited to those for which CSF samples were available from the end of infection and beginning of reinfection. Amplicons of the 16S rRNA gene V4 region were sequenced. Taxonomic assignments of V4 sequences were compared with bacterial species identified in culture.

resultsSeven infection dyads averaging 13.5 samples per infection were analyzed. A median of 8 taxa [interquartile range (IQR) 5-10] were observed in the first samples from reinfection using HTS. Conventional culture correlated with high abundance of an organism by HTS in all but 1 infection. In 6 of 7 infection dyads, organisms identified by culture at reinfection were detected by HTS of culture-negative samples at the end of the previous infection. The median Chao-Jaccard abundance-based similarity index for matched infection pairs at end of infection and beginning of reinfection was 0.57 (IQR 0.07-0.87) compared to that for unmatched pairs of 0.40 (IQR 0.10-0.60) [p = 0.46]. CONCLUSION(S): HTS results were generally consistent with culture-based methods in CSF shunt infection and reinfection, and may detect organisms missed by culture at the end of infection treatment but detected by culture at reinfection. However, the CSF microbiota did not correlate more closely within patients at the end of infection and beginning of reinfection than between any two unrelated infections. We cannot reject the hypothesis that sequential infections were independent.

Indexed as

AdolescentBacteriaCerebrospinal FluidCerebrospinal Fluid ShuntsChildHigh-Throughput Nucleotide SequencingHumansHydrocephalusReinfectionRNA, Ribosomal, 16SStaphylococcus aureusRNA, Ribosomal, 16S

Identifiers

PMID33406142
PMCPMC7787469
OpenAlexW3119285124

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.