Overview
Cornelia de Lange syndrome (CdLS) is a congenital disorder characterized by multisystem abnormalities including craniofacial dysmorphisms, growth retardation, intellectual disability, and variable involvement of multiple organ systems such as the eyes, ears, gastrointestinal tract, and musculoskeletal system 123456.Diagnosis
Key Diagnostic Criteria: Characteristic facial features (long eyelashes, synophrys, hirsutism of eyebrows), growth retardation, intellectual disability, and variable ocular (myopia, hyperopia, nystagmus) and otolaryngologic (hearing loss, gastroesophageal reflux) anomalies 123.
Recommended Tests: Genetic testing to identify mutations in genes such as SMC1A, NIPBL, RAD21, and HDAC8 17.
Chromosomal Abnormalities: Consider evaluation for chromosomal rearrangements, including homozygous inversions like 9qh 7.Management
First-Line Treatments:
- Gastroesophageal Reflux: Proton pump inhibitors (PPIs) or histamine-2 receptor antagonists; surgical intervention (e.g., fundoplication) if medical management fails 6.
- Hearing Loss: Hearing aids or cochlear implants for profound sensorineural hearing loss 23.
Adjunctive Treatments:
- Airway Management: Supraglottoplasty for laryngomalacia 3.
- Nutritional Support: Multidisciplinary approach involving nutritionists, speech therapists, and gastroenterologists to manage dysphagia and failure to thrive 2.Special Populations
Pediatrics: Early recognition and multidisciplinary management crucial for addressing gastroesophageal reflux, hearing issues, and airway problems 236.
Comorbidities: Frequent involvement of gastrointestinal dysfunction (e.g., gastroesophageal reflux, dysphagia) requiring aggressive management to prevent complications like aspiration pneumonia 26.Key Recommendations
Genetic Testing for Diagnosis: Perform genetic testing targeting known CdLS-related genes (SMC1A, NIPBL, RAD21, HDAC8) for accurate diagnosis 17 (Evidence: Strong).
Early Surgical Intervention for Severe GERD: Consider surgical fundoplication for severe gastroesophageal reflux unresponsive to medical therapy to reduce morbidity and mortality 6 (Evidence: Moderate).
Multidisciplinary Care Approach: Implement a multidisciplinary team approach including otolaryngology, gastroenterology, audiology, and nutrition to manage multifaceted issues 23 (Evidence: Expert opinion).References
1 Shi A, Levin AV. Ophthalmologic findings in the Cornelia de Lange syndrome. Ophthalmic genetics 2019. link
2 Eliason MJ, Melzer JM, Gallagher TQ. Cornelia de Lange syndrome: What every otolaryngologist should know. Ear, nose, & throat journal 2017. link
3 Hamilton J, Clement WA, Kubba H. Otolaryngological presentations of Cornelia de Lange syndrome. International journal of pediatric otorhinolaryngology 2014. link
4 Chao YC, Tsai LP, Chang YW, Tsai HY. Bilateral ulnar hemimelia in Brachmann-de Lange syndrome: report of one case. Acta paediatrica Taiwanica = Taiwan er ke yi xue hui za zhi 2000. link
5 Bozner P, Blackburn W, Cooley NR. Bilateral ulnar agenesis: case report and review of the literature. Pediatric pathology & laboratory medicine : journal of the Society for Pediatric Pathology, affiliated with the International Paediatric Pathology Association 1995. link
6 Rosenbach Y, Zahavi I, Dinari G. Gastroesophageal dysfunction in Brachmann-de Lange syndrome. American journal of medical genetics 1992. link
7 Babu KA, Verma RS, Rodriguez J, Rosenfeld W, Jhaveri RC. A possible clinical implication of homozygous inversions of 9qh regions with Cornelia de Lange syndrome (CLS). Human heredity 1985. link