Evidence map›Paper›PMID 37199638›Full record

ArticleJournal of clinical microbiology2023

Direct Detection of Carbapenemase-Producing Klebsiella pneumoniae by MALDI-TOF Analysis of Full Spectra Applying Machine Learning.

Eva Gato, Manuel J Arroyo, Gema Méndez, Ana Candela, Bruno Kotska Rodiño-Janeiro, Javier Fernández, Belén Rodríguez-Sánchez, Luis Mancera, Jorge Arca-Suárez, Alejandro Beceiro and 2 more

Open access · hybridAbstract read
In one paragraph

Article in Journal of clinical microbiology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
4.8field-weighted citation impact, top 4% 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 25 citations in OpenAlex.

  1. Pooled it
  2. Prediction of KPC-producingJournal of clinical microbiology · 2026
    Article
  3. Review
  4. Review
  5. Article
  6. Review
  7. Enterobacter cloacae complex taxonomic incongruence may lead to misidentification of outbreaks and hinder infection control in real time.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2025
    Article
  8. Interpretable machine learning of clinical MALDI-TOF spectra discriminates carbapenem-resistantJournal of mass spectrometry and advances in the clinical lab · 2025
    Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Analysis of high-molecular-weight proteins using MALDI-TOF MS and machine learning for the differentiation of clinically relevant Clostridioides difficile ribotypes.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2025
    Article
  14. Article
  15. Review
  16. Article
  17. Poor Sensitivity of the MALDI BiotyperAntibiotics (Basel, Switzerland) · 2023
    Article
  18. 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

12 authors at 5 institutions in 1 country.

Eva Gato *Servicio de Microbiología, Complejo Hospitalario Universitario A Coruña, A Coruña, Spain.
Manuel J Arroyo *Clover Bioanalytical Software S.L., Granada, Spain.
Gema Méndez *Clover Bioanalytical Software S.L., Granada, Spain.
Ana CandelaServicio de Microbiología, Complejo Hospitalario Universitario A Coruña, A Coruña, Spain.
Bruno Kotska Rodiño-JaneiroServicio de Microbiología, Complejo Hospitalario Universitario A Coruña, A Coruña, Spain.
Javier FernándezServicio de Microbiología, Hospital Central de Asturias, Oviedo, Spain.ORCID 0000-0002-7081-0936
Belén Rodríguez-SánchezServicio de Microbiología, Hospital General Gregorio Marañón, Madrid, Spain.
Luis ManceraClover Bioanalytical Software S.L., Granada, Spain.
Jorge Arca-SuárezServicio de Microbiología, Complejo Hospitalario Universitario A Coruña, A Coruña, Spain.
Alejandro BeceiroServicio de Microbiología, Complejo Hospitalario Universitario A Coruña, A Coruña, Spain.ORCID 0000-0002-6340-7815
Germán BouServicio de Microbiología, Complejo Hospitalario Universitario A Coruña, A Coruña, Spain.
Marina OviañoServicio de Microbiología, Complejo Hospitalario Universitario A Coruña, A Coruña, Spain.ORCID 0000-0001-5977-0024
Instituto de Salud Carlos III · ESComplexo Hospitalario Universitario A Coruña · ESSoftware (Spain) · ESHospital General Universitario Gregorio Marañón · ESHospital Universitario Central de Asturias · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

MALDI-TOF MS is considered to be an important tool for the future development of rapid microbiological techniques. We propose the application of MALDI-TOF MS as a dual technique for the identification of bacteria and the detection of resistance, with no extra hands-on procedures. We have developed a machine learning approach that uses the random forest algorithm for the direct prediction of carbapenemase-producing Klebsiella pneumoniae (CPK) isolates, based on the spectra of complete cells. For this purpose, we used a database of 4,547 mass spectra profiles, including 715 unduplicated clinical isolates that are represented by 324 CPK with 37 different ST. The impact of the culture medium was determinant in the CPK prediction, being that the isolates were tested and cultured in the same media, compared to the isolates used to build the model (blood agar). The proposed method has an accuracy of 97.83% for the prediction of CPK and an accuracy of 95.24% for the prediction of OXA-48 or KPC carriage. For the CPK prediction, the RF algorithm yielded a value of 1.00 for both the area under the receiver operating characteristic curve and the area under the precision-recall curve. The contribution of individual mass peaks to the CPK prediction was determined using Shapley values, which revealed that the complete proteome, rather than a series of mass peaks or potential biomarkers (as previously suggested), is responsible for the algorithm-based classification. Thus, the use of the full spectrum, as proposed here, with a pattern-matching analytical algorithm produced the best outcome. The use of MALDI-TOF MS coupled with machine learning algorithm processing enabled the identification of CPK isolates within only a few minutes, thereby reducing the time to detection of resistance.

Indexed as

Carbapenem-Resistant EnterobacteriaceaeKlebsiella InfectionsBacterial Proteinsbeta-LactamasesHumansKlebsiella pneumoniaeMachine LearningSpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationBacterial Proteinsbeta-Lactamasescarbapenemase

Identifiers

PMID37199638
PMCPMC10281162
OpenAlexW4377011702

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.