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ArticleBiomedicine hub

The Value of a Systematic Protocol Using Endobronchial Ultrasound and Endoscopic Ultrasound in Staging of Lung Cancer for Patients with Imaging iN0-N1 Disease.

Rosa Cordovilla, Marco López-Zubizarreta, Antonio Velasco, Alberto Álvarez, Marta Rodríguez, Asunción Gómez, Miguel Ángel Hernández-Mezquita, Miguel Iglesias

Open access · goldAbstract read
In one paragraph

Article in Biomedicine hub. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed, 1 pooled it
–field-weighted citation impact, top 79% 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

1 citing paper in PubMed, 1 synthesis or guideline pooled it, 1 citations in OpenAlex.

  1. Pooled it
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

8 authors at 1 institution in 1 country.

Rosa CordovillaInterventional Pulmonology Unit, Pulmonary Department, Salamanca University Hospital, Salamanca, Spain.
Marco López-ZubizarretaInterventional Pulmonology Unit, Pulmonary Department, Salamanca University Hospital, Salamanca, Spain.
Antonio VelascoGastroenterologist Department, Salamanca University Hospital, Salamanca, Spain.
Alberto ÁlvarezGastroenterologist Department, Salamanca University Hospital, Salamanca, Spain.
Marta RodríguezCytopathology Unit, Pathology Department, Salamanca University Hospital, Salamanca, Spain.
Asunción GómezCytopathology Unit, Pathology Department, Salamanca University Hospital, Salamanca, Spain.
Miguel Ángel Hernández-MezquitaInterventional Pulmonology Unit, Pulmonary Department, Salamanca University Hospital, Salamanca, Spain.
Miguel IglesiasInterventional Pulmonology Unit, Pulmonary Department, Salamanca University Hospital, Salamanca, Spain.
Universidad de Salamanca · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionWe hypothesize that systematic, combined, and multidisciplinary study of the mediastinum (endobronchial ultrasound [EBUS] and endoscopic ultrasound [EUS]) in patients with NSCLC with radiologically normal mediastinum improves the results of mediastinal staging obtained with EBUS alone. MATERIAL AND

methodsA retrospective study of the prospective database collected on the patients with NSCLC with a radiologically normal mediastinum and an indication for systematic staging with EBUS and EUS. EBUS staging was followed by EUS in patients in which the results from the pathological analysis of EBUS were negative.

resultsForty-five patients were included in the analysis. The combination of EBUS followed by EUS provided better results than EBUS alone: sensitivity (S) 95% versus 80%, negative predictive value (NPV) 96.15% versus 86.21%, negative likelihood ratio 0.05 versus 0.20, and post-test probability 3.8% versus 13.8%. This represents an increase in S (15%), the validity index (6.6%), and NPV (9.9%) compared to EBUS alone. There were 4 false negatives (FNs) (8.8%) with the EBUS test alone. After adding EUS, 3 more cases were positive (6.6%) and only 1 FN (2.2%).

conclusionsIn patients with NSCLC and a radiographically normal mediastinum, a systematic and combined staging with EBUS and EUS show higher sensitivity in the detection of mediastinal metastasis than with the use of EBUS alone. The high accuracy of the test means that the use of mediastinoscopy is not necessary to confirm the results in these patients. Since the availability of EUS is low, it may be advisable for the interventional pulmonologist to receive training in EUS-b.

Indexed as

Endobronchial ultrasoundEndoscopic ultrasoundLung cancerRadiographically normal mediastinumStaging

Identifiers

PMID34950670
PMCPMC8613614
OpenAlexW3207933200

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.