Overview
Joubert syndrome with orofaciodigital defects is a rare genetic disorder characterized by distinctive brain malformations, craniofacial anomalies including tongue hamartomas, and additional systemic features such as polysyndactyly and congenital heart defects 1.Diagnosis
Clinical Features: Polysyndactyly, coarctation of the aorta, tongue hamartomas 1.
Genetic Testing: Whole exome sequencing to identify mutations in genes like WDPCP involved in planar cell polarity and ciliogenesis 1.
Inheritance Pattern: Autosomal recessive inheritance suggested by parental genotyping 1.Management
Supportive Care: Multidisciplinary approach addressing respiratory, feeding, and developmental needs 1.
Surgical Interventions: Correction of congenital heart defects like coarctation of the aorta 1.
Orthopedic Management: Addressing polysyndactyly through surgical intervention if functional impairment exists 1.Special Populations
Pediatrics: Early intervention for developmental delays and feeding difficulties is crucial 1.Key Recommendations
Perform genetic testing via whole exome sequencing to identify mutations in WDPCP and other related genes in patients presenting with characteristic features of Joubert syndrome with orofaciodigital defects (Evidence: Moderate 1).
Implement a multidisciplinary management plan focusing on supportive care, surgical correction of anatomical anomalies, and addressing developmental needs (Evidence: Expert opinion 1).
Consider early surgical intervention for polysyndactyly and congenital heart defects to improve quality of life and functional outcomes (Evidence: Moderate 1).References
1 Saari J, Lovell MA, Yu HC, Bellus GA. Compound heterozygosity for a frame shift mutation and a likely pathogenic sequence variant in the planar cell polarity—ciliogenesis gene WDPCP in a girl with polysyndactyly, coarctation of the aorta, and tongue hamartomas. American journal of medical genetics. Part A 2015. link