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Examination of cardiac functions during acute attack and remission period in children with familial Mediterranean fever.

Yusuf GunayFatih KaragozluSanem GemiciSeyma Sukran YilmazSezgin ŞahinKenan BarutOzgur KasapcopurReyhan Dedeoglu
Published in: European journal of pediatrics (2024)
Familial Mediterranean fever (FMF) is an autosomal recessive autoinflammatory disease characterized by recurring serosal inflammation. Cardiac involvement in FMF commonly manifests as pericarditis and pericardial effusion; however, there is limited research on myocardial function. This study aimed to assess cardiac functions during active inflammation and remission periods of FMF patients and investigate the cardiac effects of inflammation during the attack period. Thirty-eight FMF patients without additional cardiac diseases were included in the study. Demographic characteristics, clinical symptoms, family history, and MEFV gene analysis results were obtained retrospectively. Blood tests, blood pressure measurements, electrocardiogram evaluations, conventional echocardiography, and speckle tracking echocardiography were performed during the attack and remission periods. Disease severity was assessed using the Pras scoring system. During the attack period, FMF patients exhibited significantly higher leukocyte count, neutrophil count, C-reactive protein, and erythrocyte sedimentation rate compared to the remission period (p < 0.005). Speckle tracking echocardiography revealed decreased function in the inferior segments of the left ventricle during the attack period (p < 0.005). Right ventricular function was more affected in the moderate disease group. FMF patients with lymphopenia during the attack demonstrated more impaired right ventricular function compared to those with normal lymphocyte count.  Conclusions: FMF patients experience cardiac abnormalities during active inflammation, highlighting the importance of monitoring cardiac functions in these patients. Speckle tracking echocardiography can provide valuable insights into cardiac involvement in FMF. These findings emphasize the cardiac impact of FMF inflammation and the significance of long-term cardiac function monitoring in the management of FMF patients. What is Known: • The current literature lacks studies investigating myocardial function in the pediatric population during the attack period of this particular disease. • Our objective was to assess the alterations in cardiac function during the attack and remission periods, considering clinical manifestations, disease severity, acute phase reactant levels, and mutation type. We also evaluated the pattern of cardiac involvement and the affected cardiac areas by comparing remission and attack periods. What is New: • Several studies have demonstrated a rise in the prevalence of ischemic cardiac disease and mortality among individuals with FMF. • Investigating cardiac involvement during the attack period in FMF patients can provide valuable insights for the prevention of long-term complications.
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