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This study has been founded by the Carlos III Health Institute (ISCIII) through the COVID-19 found. Ref. COV20-00944. The founder had no role in study design, data collection, analysis and interpretation.

Analysis of institutional authors

Fernández-Cantalejo Padial, JoséAuthorGarcia-Salido, AlbertoAuthor
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Severe manifestations of SARS-CoV-2 in children and adolescents: from COVID-19 pneumonia to multisystem inflammatory syndrome: a multicentre study in pediatric intensive care units in Spain

Publicated to:CRITICAL CARE. 24 (1): 666- - 2020-12-26 24(1), DOI: 10.1186/s13054-020-03332-4

Authors: Garcia-Salido, Alberto; de Carlos Vicente, Juan Carlos; Belda Hofheinz, Sylvia; Balcells Ramirez, Joan; Slocker Barrio, Maria; Leoz Gordillo, Ines; Hernandez Yuste, Alexandra; Guitart Pardellans, Carmina; Cuervas-Mons Tejedor, Maite; Huidobro Labarga, Beatriz; Vazquez Martinez, Jose Luis; Gutierrez Jimeno, Miriam; Oulego-Erroz, Ignacio; Trastoy Quintela, Javier; Medina Monzon, Carmen; Medina Ramos, Laura; Holanda Pena, Maria Soledad; Gil-Anton, Javier; Sorribes Orti, Clara; Flores Gonzalez, Jose Carlos; Hernandez Palomo, Rosa Maria; Sanchez Ganfornina, Inma; Fernandez Romero, Emilia; Garcia-Besteiro, Maria; Lopez-Herce Cid, Jesus; Gonzalez Cortes, Rafael

Affiliations

‎ Clin Univ Navarra, Pamplona, Spain - Author
‎ Complejo Asistencial Univ Leon, Leon, Spain - Author
‎ Complejo Hosp Univ Santiago, Santiago De Compostela, Spain - Author
‎ Hosp Gen Univ Albacete, Albacete, Spain - Author
‎ Hosp Gen Univ Alicante, Alicante, Spain - Author
‎ Hosp Gen Univ Gregorio Maranon, Paediat Intens Care Unit, Calle Doctor Castelo 47, Madrid 28007, Spain - Author
‎ Hosp Infantil Univ Nino Jesus, Madrid, Spain - Author
‎ Hosp Reg Univ Malaga, Malaga, Spain - Author
‎ Hosp Univ 12 Octubre, Madrid, Spain - Author
‎ Hosp Univ Burgos, Burgos, Spain - Author
‎ Hosp Univ Cruces, Baracaldo, Spain - Author
‎ Hosp Univ Joan XXIII, Tarragona, Spain - Author
‎ Hosp Univ Marques Valdecilla, Santander, Spain - Author
‎ Hosp Univ Puerta Del Mar, Cadiz, Spain - Author
‎ Hosp Univ Quironsalud Madrid, Pozuelo De Alarcon, Spain - Author
‎ Hosp Univ Ramon y Cajal, Madrid, Spain - Author
‎ Hosp Univ Son Espases, Palma De Mallorca, Spain - Author
‎ Hosp Univ St Joan de Deu, Esplugas de Llobregat, Spain - Author
‎ Hosp Univ Vall dHebron, Barcelona, Spain - Author
‎ Hosp Univ Virgen Macarena, Seville, Spain - Author
‎ Hosp Univ Virgen Rocio, Seville, Spain - Author
‎ Hosp Univ Virgen Salud, Toledo, Spain - Author
‎ Parc Tauli Hosp Univ, Sabadell, Spain - Author
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Abstract

Background Multisystem inflammatory syndrome temporally associated with COVID-19 (MIS-C) has been described as a novel and often severe presentation of SARS-CoV-2 infection in children. We aimed to describe the characteristics of children admitted to Pediatric Intensive Care Units (PICUs) presenting with MIS-C in comparison with those admitted with SARS-CoV-2 infection with other features such as COVID-19 pneumonia. Methods A multicentric prospective national registry including 47 PICUs was carried out. Data from children admitted with confirmed SARS-CoV-2 infection or fulfilling MIS-C criteria (with or without SARS-CoV-2 PCR confirmation) were collected. Clinical, laboratory and therapeutic features between MIS-C and non-MIS-C patients were compared. Results Seventy-four children were recruited. Sixty-one percent met MIS-C definition. MIS-C patients were older than non-MIS-C patients (p = 0.002): 9.4 years (IQR 5.5-11.8) vs 3.4 years (IQR 0.4-9.4). A higher proportion of them had no previous medical history of interest (88.2% vs 51.7%, p = 0.005). Non-MIS-C patients presented more frequently with respiratory distress (60.7% vs 13.3%, p < 0.001). MIS-C patients showed higher prevalence of fever (95.6% vs 64.3%, p < 0.001), diarrhea (66.7% vs 11.5%, p < 0.001), vomits (71.1% vs 23.1%, p = 0.001), fatigue (65.9% vs 36%, p = 0.016), shock (84.4% vs 13.8%, p < 0.001) and cardiac dysfunction (53.3% vs 10.3%, p = 0.001). MIS-C group had a lower lymphocyte count (p < 0.001) and LDH (p = 0.001) but higher neutrophil count (p = 0.045), neutrophil/lymphocyte ratio (p < 0.001), C-reactive protein (p < 0.001) and procalcitonin (p < 0.001). Patients in the MIS-C group were less likely to receive invasive ventilation (13.3% vs 41.4%, p = 0.005) but were more often treated with vasoactive drugs (66.7% vs 24.1%, p < 0.001), corticosteroids (80% vs 44.8%, p = 0.003) and immunoglobulins (51.1% vs 6.9%, p < 0.001). Most patients were discharged from PICU by the end of data collection with a median length of stay of 5 days (IQR 2.5-8 days) in the MIS-C group. Three patients died, none of them belonged to the MIS-C group. Conclusions MIS-C seems to be the most frequent presentation among critically ill children with SARS-CoV-2 infection. MIS-C patients are older and usually healthy. They show a higher prevalence of gastrointestinal symptoms and shock and are more likely to receive vasoactive drugs and immunomodulators and less likely to need mechanical ventilation than non-MIS-C patients.

Keywords
childrencritical carekawasaki diseasepediatric multisystem inflammatory syndrome temporally associated with covid-19sars-cov-2shockAdolescentChildChild, preschoolChildrenCovid-19Critical careDiseaseFemaleHumansIntensive care units, pediatricKawasaki diseaseMalePandemicsPediatric multisystem inflammatory syndrome temporally associated with covid-19Pneumonia, viralProspective studiesRegistriesSars-cov-2ShockSpainSystemic inflammatory response syndromeToxic shock syndrome

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal CRITICAL CARE due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2020, it was in position 5/36, thus managing to position itself as a Q1 (Primer Cuartil), in the category Critical Care Medicine.

From a relative perspective, and based on the normalized impact indicator calculated from World Citations provided by WoS (ESI, Clarivate), it yields a value for the citation normalization relative to the expected citation rate of: 6.04. This indicates that, compared to works in the same discipline and in the same year of publication, it ranks as a work cited above average. (source consulted: ESI Nov 14, 2024)

This information is reinforced by other indicators of the same type, which, although dynamic over time and dependent on the set of average global citations at the time of their calculation, consistently position the work at some point among the top 50% most cited in its field:

  • Weighted Average of Normalized Impact by the Scopus agency: 7.74 (source consulted: FECYT Feb 2024)
  • Field Citation Ratio (FCR) from Dimensions: 39.03 (source consulted: Dimensions May 2025)

Specifically, and according to different indexing agencies, this work has accumulated citations as of 2025-05-10, the following number of citations:

  • WoS: 109
  • Scopus: 120
  • Europe PMC: 82
  • OpenCitations: 122
Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-05-10:

  • The use, from an academic perspective evidenced by the Altmetric agency indicator referring to aggregations made by the personal bibliographic manager Mendeley, gives us a total of: 308.
  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 307 (PlumX).

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

  • The Total Score from Altmetric: 124.65.
  • The number of mentions on the social network X (formerly Twitter): 180 (Altmetric).

It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

  • The work has been submitted to a journal whose editorial policy allows open Open Access publication.
Leadership analysis of institutional authors

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (GARCIA SALIDO, ALBERTO) .