• Zeinab Salah Seliem, Dina Ahmed Mehaney, Laila Abd Elmoteleb Selim, Sonia Ali El-Saiedi, Reem Ibrahim Ismail, Nihal Magdi Almenabawy, Rasha Ibrahim Ammar, Inas AbdElsattar Saad, Mohammed Mosad Soliman, and Mohamed A Elmonem.
• Pediatrics Department, Pediatric cardiology division, Faculty of Medicine, Cairo University, Cairo 11562 Egypt.
• Afr Health Sci. 2022 Mar 1; 22 (1): 200-209.

BackgroundInborn errors of metabolism (IEMs) commonly present with pediatric cardiomyopathy. Identification of the underlying cause is necessary as it may lead to improved outcomes.ObjectivesWe aimed to investigate the diagnostic rate, the clinical, and biochemical spectra of IEMs among Egyptian pediatric patients presenting with cardiomyopathy, and their outcome measures.MethodsWe retrospectively analyzed the clinical, biochemical, and radiological data of 1512 children diagnosed with cardiomyopathy at Cairo University Children's Hospital over a 5-year duration.ResultsTwo hundred twenty-nine children were clinically suspected as IEMs and underwent metabolic workup. Nineteen different IEMs were confirmed in 57 (24.4%) of the suspected children. Their median age at presentation was 2.6 years and the majority had extra-cardiac manifestations. Hypertrophic cardiomyopathy represented 43/57 (75.4%) of confirmed cases, while dilated cardiomyopathy represented 13/57 (22.8%), and one patient presented with a mixed phenotype. Twenty- six patients (45.6%) survived, while 31 patients (54%) either died or were lost to follow up and assumed deceased.ConclusionsWe developed for the first time a database and a diagnostic scheme for metabolic cardiomyopathies in Egyptian children. With the recent introduction of enzyme replacement therapy, many metabolic disorders became treatable, thus establishing an early and accurate diagnosis is extremely important.© 2022 Seliem ZS et al.

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