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Discover Pediatric Collections on COVID-19 and Racism and Its Effects on Pediatric Health

American Academy of Pediatrics
Research Briefs

Lung Ultrasound in Children With COVID-19

Marco Denina, Carlo Scolfaro, Erika Silvestro, Giulia Pruccoli, Federica Mignone, Marisa Zoppo, Ugo Ramenghi and Silvia Garazzino
Pediatrics July 2020, 146 (1) e20201157; DOI: https://doi.org/10.1542/peds.2020-1157
Marco Denina
Paediatric Infectious Diseases Unit, Regina Margherita Children’s Hospital, University of Turin, Turin, Italy
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Carlo Scolfaro
Paediatric Infectious Diseases Unit, Regina Margherita Children’s Hospital, University of Turin, Turin, Italy
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Erika Silvestro
Paediatric Infectious Diseases Unit, Regina Margherita Children’s Hospital, University of Turin, Turin, Italy
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Giulia Pruccoli
Paediatric Infectious Diseases Unit, Regina Margherita Children’s Hospital, University of Turin, Turin, Italy
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Federica Mignone
Paediatric Infectious Diseases Unit, Regina Margherita Children’s Hospital, University of Turin, Turin, Italy
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Marisa Zoppo
Paediatric Infectious Diseases Unit, Regina Margherita Children’s Hospital, University of Turin, Turin, Italy
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Ugo Ramenghi
Paediatric Infectious Diseases Unit, Regina Margherita Children’s Hospital, University of Turin, Turin, Italy
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Silvia Garazzino
Paediatric Infectious Diseases Unit, Regina Margherita Children’s Hospital, University of Turin, Turin, Italy
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  • Abbreviations:
    COVID-19 —
    coronavirus disease 2019
    LUS —
    lung ultrasound
  • The novel coronavirus disease 2019 (COVID-19) is rapidly spreading all around the world, affecting both adults and children. Recently, the clinical and radiographic characteristics of children infected have been described.1 Although lung ultrasound (LUS) is recognized as a valid imaging technique for the diagnosis and follow-up of pneumonia in pediatric age,2 no data are currently available about LUS use in children with COVID-19. Considering the well-known advantages of point-of-care ultrasound,3 including the possibility of reducing the patient’s movement across the hospital department, we investigated LUS findings in children infected with severe acute respiratory syndrome–coronavirus 2.

    Methods

    We performed an observational study at Regina Margherita Children’s Hospital (Turin, Italy). Children and adolescents (0–17 years) admitted to the pediatric infectious diseases department for documented COVID-19 were analyzed. Epidemiological, clinical, and laboratory data were collected, and we categorized patients according to the clinical definitions recently provided by Qiu et al.1 LUS was performed during the routine medical examination with a linear array transducer at 7.5 to 13 MHz (MyLab Seven; Esaote, Genoa, Italy), applying the Copetti protocol.4

    Results

    Between March 18 and March 26, 2020, 8 children affected by COVID-19 were admitted to our department. Epidemiological and clinical features are provided in Table 1. Two cases (25%) were classified as severe clinical types, 2 (25%) as moderate, and 4 (50%) as mild. Two (25%) children needed noninvasive oxygen administration for 2 and 4 days, respectively. None of them required mechanical ventilation. We performed LUS in all 8 patients, paying particular attention to signs of viral pneumonia as small subpleural consolidations and/or individual B-lines or confluent B-lines (echogenic vertical lines arising from the pleural line and moving in concert with a sliding lung, expression of an interstitial syndrome).5 LUS revealed subpleural consolidations in 2 children and confluent B-lines in 5 children. In 7 of 8 patients, we found a concordance with the radiologic findings (Fig 1), whereas in the remaining patient, an interstitial B-lines pattern was observed despite a normal chest radiography. One patient with severe clinical type was repeatedly examined with LUS on alternate days, and we noted a B-lines bilateral pattern reduction a day in advance before clinical and radiographic improvement.

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    TABLE 1

    Epidemiological and Clinical Features of COVID-19 Pediatric Patients Stratified by Clinical Types

    FIGURE 1
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    FIGURE 1

    A and B, Multiple confluent B-lines (thin arrows). C, Chest radiography with left upper lobe consolidation and right central ground-glass opacities. D and E, A lung consolidation (thick arrows) at LUS.

    In the 7 children with pathologic ultrasound imaging at baseline, LUS was repeated before discharge and revealed improvement or resolution of consolidations (2 of 2) and interstitial patterns (5 of 5), which was consistent with the concomitant radiologic findings.

    Conclusions

    Investigators have shown that in adults with COVID-19 pneumonia, bedside ultrasound correlates with computed tomography findings.6 Our study represents a preliminary report of LUS characteristics in children affected by COVID-19. Although the number of patients analyzed is small, the high concordance between radiologic and LUS findings suggests that ultrasound may be a reasonable method to detect lung abnormalities in children with COVID-19. LUS may be useful in the management of children with COVID-19 for several reasons. First, it may reduce the number of radiologic examinations, lowering the radiation exposure of the patients. Secondly, when performed at the bedside, LUS allows for the reduction of the patient’s movement within the hospital; thus, it lowers the number of health care workers and medical devices exposed to severe acute respiratory syndrome–coronavirus 2. Moreover, the recent evolution in the ultrasound field allows for the use of wireless devices, which, when available, are probably the most appropriate ultrasound equipment in patients with confirmed or suspected COVID-19. Both the wireless probe and the tablets are easily wrapped in disposable plastic covers, allowing for simple sterilization procedures and reducing the risk of contamination, as recently suggested by Buonsenso et al.7

    In conclusion, although additional studies are needed to better understand and characterize LUS findings in this novel disease in children, we propose routine LUS protocol examinations as a useful tool in the diagnostic and clinical management of mild or severe COVID-19 in children.

    Acknowledgments

    We thank Drs A.G. Delmonaco and E. Garrone for their constant ultrasound teaching activity at pediatrics resident.

    Footnotes

      • Accepted April 16, 2020.
    • Address correspondence to Marco Denina, MD, Paediatric Infectious Diseases Unit, Regina Margherita Children’s Hospital, University of Turin, Piazza Polonia 94, 10126 Turin, Italy. E-mail: marco.denina{at}gmail.com
    • FINANCIAL DISCLOSURE: The authors have indicated they have no financial relationships relevant to this article to disclose.

    • FUNDING: No external funding.

    • POTENTIAL CONFLICT OF INTEREST: The authors have indicated they have no potential conflicts of interest to disclose.

    References

    1. ↵
      1. Qiu H,
      2. Wu J,
      3. Hong L,
      4. Luo Y,
      5. Song Q,
      6. Chen D
      . Clinical and epidemiological features of 36 children with coronavirus disease 2019 (COVID-19) in Zhejiang, China: an observational cohort study [published online ahead of print March 25, 2020]. Lancet Infect Dis. doi:10.1016/S1473-3099(20)30198-5
    2. ↵
      1. Pereda MA,
      2. Chavez MA,
      3. Hooper-Miele CC, et al
      . Lung ultrasound for the diagnosis of pneumonia in children: a meta-analysis. Pediatrics. 2015;135(4):714–722
      OpenUrlAbstract/FREE Full Text
    3. ↵
      1. Lichtenstein DA,
      2. Mezière GA
      . Relevance of lung ultrasound in the diagnosis of acute respiratory failure: the BLUE protocol [published correction appears in Chest. 2013;144(2):721]. Chest. 2008;134(1):117–125
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    4. ↵
      1. Copetti R,
      2. Cattarossi L
      . Ultrasound diagnosis of pneumonia in children. Radiol Med. 2008;113(2):190–198
      OpenUrlCrossRefPubMed
    5. ↵
      1. Tsung JW,
      2. Kessler DO,
      3. Shah VP
      . Prospective application of clinician-performed lung ultrasonography during the 2009 H1N1 influenza A pandemic: distinguishing viral from bacterial pneumonia. Crit Ultrasound J. 2012;4(1):16
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    6. ↵
      1. Poggiali E,
      2. Dacrema A,
      3. Bastoni D, et al
      . Can lung US help critical care clinicians in the early diagnosis of novel coronavirus (COVID-19) pneumonia? Radiology. 2020;295(3):E6
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    7. ↵
      1. Buonsenso D,
      2. Pata D,
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      . COVID-19 outbreak: less stethoscope, more ultrasound. Lancet Respir Med. 2020;8(5):e27
      OpenUrlPubMed
    • Copyright © 2020 by the American Academy of Pediatrics
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    Lung Ultrasound in Children With COVID-19
    Marco Denina, Carlo Scolfaro, Erika Silvestro, Giulia Pruccoli, Federica Mignone, Marisa Zoppo, Ugo Ramenghi, Silvia Garazzino
    Pediatrics Jul 2020, 146 (1) e20201157; DOI: 10.1542/peds.2020-1157

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    Lung Ultrasound in Children With COVID-19
    Marco Denina, Carlo Scolfaro, Erika Silvestro, Giulia Pruccoli, Federica Mignone, Marisa Zoppo, Ugo Ramenghi, Silvia Garazzino
    Pediatrics Jul 2020, 146 (1) e20201157; DOI: 10.1542/peds.2020-1157
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