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We read with interest the article by Pouletty et al,1 in which the authors describe a multicentre compilation of patients with Kawasaki disease (KD) in France, associated with the detection of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. Other colleagues in Europe and USA have recently reported similar experiences.2–5
We report a prospective case series of paediatric patients that fulfilled clinical diagnostic criteria of KD during the SARS-CoV-2 pandemic in a paediatric referral centre in Barcelona, Spain. KD was defined according to the 2017 criteria of the American Heart Association.6 Assessment of SARS-CoV-2 infection was made by means of quantitative real-time PCR assay (GeneFinder COVID-19 Plus, Elitech; Puteaux, France) in nasopharyngeal samples; stools were tested in patients with diarrhoea. SARS-CoV-2 IgG qualitative determination (SARS-CoV-2 IgG chemiluminescent microparticle immunoassay; Abbot, Chicago, Illinois) was performed during admission. Statistical analyses were performed using SPSS V.25 (IBM). Informed consent was obtained from parents or legal guardians, as was informed assent in patients aged >12 years.
From March 23 to May 14, twelve previously healthy patients with KD were admitted to our institution (table 1). The yearly number of patients with KD diagnosed in our centre is around 10–12. Prior to diagnosis, several patients reported gastrointestinal symptoms (10/12, 83.3%; vomiting, diarrhoea and abdominal pain) and neurological symptoms (5/12, 41.6%; irritability, headache, decreased consciousness and febrile seizures). Only patient 10 was referred with respiratory …
Footnotes
AN-J and JA contributed equally.
Contributors RP, IJ, VF, CF, JJGG, ANJ and JA designed the study. RP, ACI, MRB, SR, MFDS, LM, CL, IC, LL, JSM, JMM, JSdT and VF collected the clinical data. MM, CE and CMA supervised the microbiological studies. RP, ANJ and JA analysed the data and wrote the paper. All authors have reviewed and approved the version submitted for publication.
Funding This work was supported by 'Subvencions per a la Intensificació de Facultatius Especialistes' (Departament de Salut de la Generalitat de Catalunya, Programa PERIS 2016-2020) (SLT008/18/00193) to ANJ.
Competing interests CF has received funds for speaking at symposia organised on behalf of Gilead Sciences. JA has received grants, personal fees and non-financial support from Sobi; grants and personal fees from Novartis; grants from Roche; grants, personal fees and non-financial support from Pfizer; grants and personal fees from BMS; grants from Lilly; grants from Novimmune; grants and personal fees from Gebro; and grants, personal fees and non-financial support from AbbVie, outside the submitted work.
Patient and public involvement Patients and/or the public were not involved in the design, or conduct, or reporting, or dissemination plans of this research.
Provenance and peer review Not commissioned; internally peer reviewed.