ABSTRACT
Introduction: COVID-19 has a less severe course in children. In April 2020, some children presented with signs of multisystem inflammation with clinical signs overlapping with Kawasaki disease (KD), most of them requiring admission to the pediatric intensive care unit (PICU). This study aimed to describe the prevalence and clinical characteristics of KD SARS-CoV-2 confirmed and negative patients during the pandemic in Spain. Material and Methods: Medical data of KD patients from January 1, 2018 until May 30, 2020 was collected from the KAWA-RACE study group. We compared the KD cases diagnosed during the COVID-19 period (March 1-May 30, 2020) that were either SARS-CoV-2 confirmed (CoV+) or negative (CoV-) to those from the same period during 2018 and 2019 (PreCoV). Results: One hundred and twenty-four cases were collected. There was a significant increase in cases and PICU admissions in 2020 (P-trend = 0.001 and 0.0004, respectively). CoV+ patients were significantly older (7.5 vs. 2.5 yr) and mainly non-Caucasian (64 vs. 29%), had incomplete KD presentation (73 vs. 32%), lower leucocyte (9.5 vs. 15.5 × 109) and platelet count (174 vs. 423 × 109/L), higher inflammatory markers (C-Reactive Protein 18.5vs. 10.9 mg/dl) and terminal segment of the natriuretic atrial peptide (4,766 vs. 505 pg/ml), less aneurysm development (3.8 vs. 11.1%), and more myocardial dysfunction (30.8 vs. 1.6%) than PreCoV patients. Respiratory symptoms were not increased during the COVID-19 period. Conclusion: The KD CoV+ patients mostly meet pediatric inflammatory multisystem syndrome temporally associated with COVID-19/multisystem inflammatory syndrome in children criteria. Whether this is a novel entity or the same disease on different ends of the spectrum is yet to be clarified.
ABSTRACT
INTRODUCTION: At this time there are still major questions about the characteristics of disease caused by the new coronavirus (COVID-19) in children as well as factors associated with the development of severe forms of the disease. STUDY DESIGN: Retrospective study including patients under 18 years of age admitted with SARS-CoV-2 infection from March 1 to April 30, 2020. Infection was confirmed by real-time reverse transcriptase polymerase chain reaction (RT-PCR) or antibody testing. We describe the epidemiological and clinical data, laboratory and imaging findings, as well as treatment and outcome in these patients. In light of these findings, patients were classified into two severity groups and then compared. RESULTS: Thirty-nine children were included, with a median age of 9 years (range 12 days-16 years); 23 were boys. Cases with uncomplicated disease course (24) mostly presented to the emergency department (ED) with fever and/or respiratory symptoms without significant alterations in laboratory findings. Of the 15 children with a complicated course, 12 developed shock. In addition to fever, they frequently presented altered appearance, extreme tachycardia, abdominal pain, vomiting, diarrhea, rash, and/or conjunctival hyperemia. They also showed greater lymphopenia (p = 0.001), elevated neutrophil/lymphocyte ratio (p = 0.001), C-reactive protein (p < 0.001), procalcitonin (p = 0.001), D-dimer (p < 0.001), and ferritin (p < 0.001). CONCLUSIONS: SARS-CoV-2 infection in admitted children presents with great clinical variability. When provided supportive care, patients with predominant respiratory symptoms without altered laboratory-test results generally have an uncomplicated course. Patients with complicated disease present mainly with fever and abdominal and/or mucocutaneous symptoms. Most develop shock. Elevation of inflammatory markers may allow for early detection and the final outcome is good.
INTRODUCCIÓN: En este momento existen todavía grandes interrogantes acerca de las características de enfermedad causada por el nuevo coronavirus (COVID-19) en los niños, así como acerca de los factores asociados al desarrollo de formas graves de la enfermedad. MÉTODOS: Estudio retrospectivo que incluye pacientes menores de 18 años ingresados debido a infección por SARS-CoV-2. La infección fue confirmada por la reacción en cadena de la transcriptasa inversa-polimerasa (RT-PCR) en tiempo real o por serología. Describimos los datos epidemiológicos y clínicos, los hallazgos de laboratorio y de imágenes, así como el tratamiento y la evolución de estos pacientes. Los pacientes se clasificaron en dos grupos de gravedad y luego se compararon. RESULTADOS: Se incluyeron 39 niños, con una mediana de edad de nueve años (rango 12 días-16 años); 23 eran varones. Los casos con evolución no complicada (24) se presentaron en su mayoría con fiebre y/o síntomas respiratorios sin alteraciones significativas en los hallazgos de laboratorio. De los 15 niños con enfermedad complicada, 12 desarrollaron shock. Además de la fiebre, frecuentemente presentaban alteraciones de la apariencia, taquicardia extrema, dolor abdominal, vómitos, diarrea, erupción cutánea y/o hiperemia conjuntival. También mostraron mayor linfopenia (p = 0,001), elevación de la proporción neutrófilos/linfocitos (p = 0,001), proteína C reactiva (p < 0,001), procalcitonina (p = 0,001), dímero D (p < 0,001) y ferritina (p < 0,001). CONCLUSIONES: La infección por SARS-CoV-2 en niños ingresados se presenta con una gran variabilidad clínica. Cuando se les proporciona tratamiento de soporte, los pacientes con síntomas respiratorios que no tienen alteración de las pruebas de laboratorio, generalmente tienen una enfermedad no complicada. Los pacientes con enfermedad complicada se presentan principalmente con fiebre y síntomas abdominales y/o mucocutáneos, la mayoría desarrollan un shock. La elevación de los marcadores inflamatorios puede permitir una detección temprana y el pronóstico final es bueno.
ABSTRACT
INTRODUCTION: At this time there are still major questions about the characteristics of disease caused by the new coronavirus (COVID-19) in children as well as factors associated with the development of severe forms of the disease. STUDY DESIGN: Retrospective study including patients under 18 years of age admitted with SARS-CoV-2 infection from March 1 to April 30, 2020. Infection was confirmed by realtime reverse transcriptase-polymerase chain reaction (RT-PCR) or antibody testing. We describe the epidemiological and clinical data, laboratory and imaging findings, as well as treatment and outcome in these patients. In light of these findings, patients were classified into two severity groups and then compared. RESULTS: Thirty-nine children were included, with a median age of 9 years (range 12 days-16 years); 23 were boys. Cases with uncomplicated disease course (24) mostly presented to the emergency department (ED) with fever and/or respiratory symptoms without significant alterations in laboratory findings. Of the 15 children with a complicated course, 12 developed shock. In addition to fever, they frequently presented altered appearance, extreme tachycardia, abdominal pain, vomiting, diarrhea, rash, and/or conjunctival hyperemia. They also showed greater lymphopenia (p = 0.001), elevated neutrophil/lymphocyte ratio (p = 0.001), C-reactive protein (p < 0.001), procalcitonin (p = 0.001), D-dimer (p < 0.001), and ferritin (p < 0.001). CONCLUSIONS: SARS-CoV-2 infection in admitted children presents with great clinical variability. When provided supportive care, patients with predominant respiratory symptoms without altered laboratory-test results generally have an uncomplicated course. Patients with complicated disease present mainly with fever and abdominal and/or mucocutaneous symptoms. Most develop shock. Elevation of inflammatory markers may allow for early detection and the final outcome is good.