Introduction: KBG syndrome is an autosomal dominant, polymalformative genetic syndrome that is mainly associated with neurodevelopmental and learning disorders, intellectual disability, behavioral disorders, and epilepsy as well as characteristic dysmorphic features, short stature, and ENT (ear, nose, and throat) abnormalities. However, the diagnostic pathway of these individuals is an element that has not been broadly evaluated. The main aim of this study was therefore to characterize the diagnostic pathway for these individuals, by assessing the different healthcare professionals involved and the main referral elements.
Method: This was a multicenter, retrospective, descriptive study. A cohort of 30 individuals with KBG syndrome who were followed up at Poitiers University Hospital and Bordeaux University Hospital we recruited.
Results: Pediatricians were the main healthcare professionals who referred individuals for genetic consultation, and the main reason for referral was an assessment of learning delays or intellectual disability, in association with other abnormalities.
Conclusion: Pediatricians play a crucial role in the diagnostic guidance of individuals with KBG syndrome, and the main reason for referral remains the assessment of a learning delay or intellectual disability. Healthcare professionals must therefore remain attentive to the child's development and the various anomalies associated with it, in particular characteristic dysmorphic features, behavioral disorders, and statural growth.
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http://dx.doi.org/10.1016/j.arcped.2024.02.007 | DOI Listing |
BMJ Case Rep
December 2024
Pediatric Neurology, Aster CMI Hospital, Bengaluru, Karnataka, India
Am J Med Genet A
February 2025
Suma Genomics Private Limited, Manipal, India.
Am J Med Genet A
February 2025
Department of Human Genetics, NYS Institute for Basic Research in Developmental Disabilities, Staten Island, New York, USA.
This study aimed to examine the adaptive functioning status and the impact of epileptic seizures on neurocognitive outcomes in KBG syndrome, a rare genetic neurodevelopmental disorder characterized by pathogenic variants in ANKRD11. A single clinician interviewed individuals and families with genetically confirmed cases of KBG syndrome. Trained professionals also conducted assessments using the Vineland-3 Adaptive Behavior Scales.
View Article and Find Full Text PDFTremor Other Hyperkinet Mov (N Y)
September 2024
Institute of Human Genetics, Technical University of Munich, School of Medicine and Health, Munich, Germany.
Orphanet J Rare Dis
August 2024
Department of Endocrinology, Genetics and Metabolism, Affiliated Hospital of Jining Medical University, Jining, Shandong, 272029, China.
Ankyrin repeat domain containing-protein 11 (ANKRD11), a transcriptional factor predominantly localized in the cell nucleus, plays a crucial role in the expression regulation of key genes by recruiting chromatin remodelers and interacting with specific transcriptional repressors or activators during numerous biological processes. Its pathogenic variants are strongly linked to the pathogenesis and progression of multisystem disorder known as KBG syndrome. With the widespread application of high-throughput DNA sequencing technologies in clinical medicine, numerous pathogenic variants in the ANKRD11 gene have been reported.
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