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Transcutaneous Microcirculatory Imaging in Preterm Neonates
Published on: December 31, 2015
Coats Plus Syndrome in a Premature Infant, With a Focus on Management
Avery E Sears1, Caroline C Awh2, Shafeeque Kunhiabdullah3
1Case Western Reserve University School of Medicine, Cleveland, OH, USA.
Insights
Genetic testing identified pathogenic CTC1 variants, diagnosing Coats plus syndrome in a premature infant. This rare genetic disorder caused significant retinal issues, requiring targeted treatment.
Area of Science:
- Ophthalmology
- Genetics
- Pediatrics
Background:
- Coats plus syndrome is a rare genetic disorder.
- It is characterized by retinovascular ischemia, capillary remodeling, aneurysmal dilation, and exudative retinal detachment.
- Pathogenic variants in the CTC1 gene are associated with Coats plus syndrome.
Observation:
- A premature infant born at 30 weeks gestational age presented with symptoms suggestive of Coats plus syndrome.
- Ophthalmic examination revealed exudative retinal detachment in one eye and avascularity with telangiectasias and aneurysmal dilations in the other.
- Genetic evaluation confirmed biallelic heterozygous pathogenic CTC1 variants.
Findings:
- The infant was diagnosed with Coats plus syndrome based on genetic findings.
- Despite initial treatment with photocoagulation, retinal ischemia progressed.
- Sequential examinations under anesthesia with fluorescein angiography documented progressive ischemia.
Implications:
- Early genetic diagnosis of Coats plus syndrome is crucial for appropriate management.
- A combination of systemic/local corticosteroids and laser ablation effectively reduced vascular exudation.
- This multimodal approach helped avoid more invasive intraocular interventions.
Purpose:
A premature infant was diagnosed with Coats plus syndrome based on a genetic evaluation showing biallelic heterozygous pathogenic CTC1 variants.
Methods:
A case study was performed, including findings and interventions.
Results:
A premature infant born 30 weeks gestational age weighing 817 g was evaluated for retinopathy of prematurity at 35 weeks corrected gestational age. An initial dilated fundus examination showed an exudative retinal detachment (RD) in the right eye and avascularity post-equatorially in the left eye with telangiectasias and aneurysmal dilations. Genetic evaluation showed biallelic heterozygous pathogenic CTC1 variants, diagnostic of Coats plus syndrome. Sequential examination under anesthesia with fluorescein showed progressive ischemia despite confluent photocoagulation.
Conclusions:
CTC1 gene variants manifest as Coats plus syndrome, which has a clinical appearance consistent with retinovascular ischemia, capillary remodeling, aneurysmal dilation, and exudative RD. Systemic and local corticosteroids in conjunction with peripheral laser ablation decreased vascular exudation and avoided intraocular intervention.
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