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Next-generation sequencing in children with epilepsy: The importance of precise genotype–phenotype correlation
Autoři | |
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Rok publikování | 2022 |
Druh | Článek v odborném periodiku |
Časopis / Zdroj | EPILEPSY & BEHAVIOR |
Fakulta / Pracoviště MU | |
Citace | |
www | https://www.sciencedirect.com/science/article/pii/S1525505022000130 |
Doi | http://dx.doi.org/10.1016/j.yebeh.2022.108564 |
Klíčová slova | Epilepsy; Genetic testing; Children; Next-generation sequencing; Precise medicine |
Popis | Aim: The primary goal was to determine the yield of next-generation sequencing (NGS) epilepsy gene panels used for epilepsy etiology diagnosing using a multidisciplinary approach and to demonstrate the importance of genotype-phenotype correlations. The secondary goal was to evaluate the application of precision medicine in selected patients. Methods: This single-center retrospective study included a total of 175 patients (95 males and 80 females) aged 0-19 years. They were examined between 2015 and 2020 using an NGS epilepsy gene panel (270 genes). A bioinformatic analysis was performed including copy number variation identifica-tion. Thorough genotype-phenotype correlation was performed. Results: Out of 175 patients, described pathogenic variants or novel variants with clear pathogenic impact were identified in 30 patients (17.14%). Genotype-phenotype correlations and parental DNA anal-ysis were performed, and genetic diagnosis was confirmed on the basis of the results in another 16 out of 175 patients (9.14%). The diagnostic yield of our study increased from 30 to 46 patients (by 53.33%) by the precise genotype-phenotype correlation. Interpretation: We emphasize a complex genotype-phenotype correlation and a multidisciplinary approach in evaluating the results of the NGS epilepsy gene panel, which enables the most accurate genetic diagnosis and correct interpretation of results. |