Evidence map›Paper›PMID 34190621›Full record

SynthesisTherapeutic advances in respiratory disease

Clinical effectiveness of convalescent plasma in hospitalized patients with COVID-19: a systematic review and meta-analysis.

Roberto Ariel Abeldaño Zuñiga, Ruth Ana María González-Villoria, María Vanesa Elizondo, Anel Yaneli Nicolás Osorio, David Gómez Martínez, Silvia Mercedes Coca

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Therapeutic advances in respiratory disease. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.1field-weighted citation impact, top 51% 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

2 citing papers in PubMed, 2 citations in OpenAlex.

  1. Article
  2. Frontiers in medical technology · 2021
    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

6 authors at 2 institutions in 2 countries.

Roberto Ariel Abeldaño ZuñigaUniversity of Sierra Sur, Miahuatlan de Porfirio Diaz, Oaxaca, 70800, Mexico.ORCID 0000-0002-2627-278X
Ruth Ana María González-VilloriaPost Graduate Department. University of Sierra Sur, Oaxaca, Mexico.
María Vanesa ElizondoInstitute of Biomedical Sciences, Catholic University of Cuyo, San Juan, Argentina.
Anel Yaneli Nicolás OsorioPost Graduate Department. University of Sierra Sur, Oaxaca, Mexico.
David Gómez MartínezPublic Health Research Institute. University of Sierra Sur, Oaxaca, Mexico.
Silvia Mercedes CocaPublic Health Research Institute. University of Sierra Sur, Oaxaca, Mexico.
Universidad de la Sierra · MXUniversidad Católica de Cuyo · AR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsGiven the variability of previously reported results, this systematic review aims to determine the clinical effectiveness of convalescent plasma employed in the treatment of hospitalized patients diagnosed with COVID-19.

methodsWe conducted a systematic review of controlled clinical trials assessing treatment with convalescent plasma for hospitalized patients diagnosed with SARS-CoV-2 infection. The outcomes were mortality, clinical improvement, and ventilation requirement.

resultsA total of 51 studies were retrieved from the databases. Five articles were finally included in the data extraction and qualitative and quantitative synthesis of results. The overall risk of bias in the reviewed articles was established at low-risk only in two trials. The meta-analysis suggests that there is no benefit of convalescent plasma compared with standard care or placebo in reducing the overall mortality and the ventilation requirement. However, there could be a benefit for the clinical improvement in patients treated with plasma.

conclusionCurrent results led to assume that the convalescent plasma transfusion cannot reduce the mortality or ventilation requirement in hospitalized patients diagnosed with SARS-CoV-2 infection. More controlled clinical trials conducted with methodologies that ensure a low risk of bias are still needed.

Indexed as

HospitalizationCOVID-19COVID-19 SerotherapyHospital MortalityHumansImmunization, PassiveRecovery of FunctionRespiration, ArtificialRisk AssessmentRisk FactorsTime FactorsTreatment Outcomeclinical improvementconvalescent plasmaCOVID-19mortalitySARS-CoV-2

Identifiers

PMID34190621
PMCPMC8252450
OpenAlexW3173820885

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.