Evidence map›Paper›PMID 35191191›Full record

ArticleInternal medicine journal2022

Evaluation of pleural fluid cytology for the diagnosis of malignant pleural effusion: a retrospective cohort study.

Lorna Pairman, Lutz E L Beckert, Mark Dagger, Michael J Maze

Open access · hybridAbstract read
In one paragraph

Article in Internal medicine journal, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
4.0field-weighted citation impact, top 5% 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

17 citing papers in PubMed, 29 citations in OpenAlex.

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  16. Updates in Management of Malignant Pleural Mesothelioma.Current treatment options in oncology · 2023
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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

4 authors at 2 institutions in 1 country.

Lorna PairmanDepartment of Medicine, University of Otago, Christchurch, New Zealand.
Lutz E L BeckertDepartment of Medicine, University of Otago, Christchurch, New Zealand.
Mark DaggerDepartment of Anatomical Pathology, Canterbury District Health Board, Christchurch, New Zealand.
Michael J MazeDepartment of Medicine, University of Otago, Christchurch, New Zealand.ORCID 0000-0001-8909-1508
Canterbury District Health Board · NZUniversity of Otago · NZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCytological examination of pleural fluid has good specificity, but imperfect sensitivity for the diagnosis of malignant pleural effusion (MPE). Published estimates of sensitivity vary and predictors of false negative cytology are not well established.

aimsTo estimate pleural fluid cytology sensitivity and identify risk factors for false negative cytology.

methodsWe conducted a retrospective cohort study of patients who had cytology testing of pleural fluid at Christchurch Hospital, New Zealand, from July 2017 to October 2019. Data on clinical and pleural fluid characteristics were collected. MPE was defined by positive pleural fluid cytology, tissue histology or multidisciplinary meeting consensus. We estimated sensitivity of the first pleural cytology assessment. We performed multivariate logistic regression to ascertain patient groups at greatest risk of false negative results.

resultsInitial pleural fluid cytology was diagnostic in 117 of 156 patients, providing a sensitivity (95% confidence interval (CI)) of 75.0% (67.4-81.6%). The sensitivity was 79.0% (66.8-88.3%) for lung cancer, 91.3% (72.0-98.9%) for breast cancer and 33.3% (95% CI 11.8-61.6%) for mesothelioma. Cloudy appearance of pleural fluid (odds ratio (OR) 0.12; 95% CI 0.03-0.54) and yellow/gold pleural fluid (OR 0.24; 95% CI 0.06-0.96) reduced the odds of false negative pleural cytology. Pleural thickening on computed tomography scan (OR 3.3; 95% CI 1.2-9.4) was a risk factor for false negative cytology.

conclusionSensitivity of pleural fluid cytology was greatest in primary lung and breast cancer, and lowest in mesothelioma. Clinicians should be alert to false negative results when suspecting mesothelioma or if pleural thickening is present.

Indexed as

Breast NeoplasmsMesotheliomaMesothelioma, MalignantPleural EffusionPleural Effusion, MalignantFemaleHumansPleuraRetrospective StudiesSensitivity and Specificitycytologyeffusionmalignancypleural

Identifiers

PMID35191191
PMCPMC9542185
OpenAlexW4220726673

What OpenQuestion holds

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LicenceCC BY-NC
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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.