ABSTRACT
Introduction or Background: The long-term effects of COVID-19 infection on the respiratory system in children are not yet known. Aims and Objectives: To determine the long-term effects of COVID-19 infection on the respiratory system of children by evaluating pulmonary function tests. Method(s): In this multicenter study, COVID-19 PCR positive children(>=6years) were evaluated prospectively with pulmonary function tests(spirometry, plethysmography and CO diffusion) at 3rd and 6th months follow-up. The results were evaluated retrospectively based on clinical symptoms, physical examination findings, radiological and laboratory tests of the patients in the acute phase of the infection. Result(s): At 3rd month evaluation of 270 COVID-19 PCR positive pediatric patients, mean FEV1 96.85+/-16.84%,FVC 96.06+/-16.84% were found;at 6th month, mean FEV1 100,03+/-15.98%,FVC 100.62+/-16.87. At the 3rd month, statistically significant differences were found between FEV1<80%(n:28),FEV1>80%(n:242) groups due to the presence of additional diseases(p<0.001),having respiratory(p=0.006) and cardiovascular(p=0.004) system pathological examination findings, interlobular septal thickening(p=0.020) on thorax CT, high level of CRP(p=0.032),IL6(p=0.048),ferritin(p=0,020) during the infection period. Having COVID-19 pneumonia was found to be non-effective on spirometric test results. No difference was found between the 3rd and 6th month spirometry results of the same patient. Conclusion(s): After recovery of COVID-19 infection, children who have additional diseases, and pathological examination and radiological findings during the infection period, may have functional respiratory changes;so they should be monitored with pulmonary function tests.
ABSTRACT
Objective: In this retrospective study, we aimed to identify viral agents in children hospitalized with ALRTI and to show the relationship between viral agents and clinical characteristics. Material and Methods: Two hundred and fifty five children (55.7% male) who were diagnosed with ALRTI and hospitalized between March 2016 and February 2017 were included in the study. Clinical characteristics of the patients who were examined to detect respiratory tract viruses with PCR analysis in nasopharyngeal swab samples were evaluated by using medical records. The patients were divided into three groups according to their age: under two years old, between 2-6 years old, and between 6-18 years old. Newborns were not included in the study.