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Published on: October 14, 2021
Manifestations of Tuberous Sclerosis Complex: The Experience of a Provincial Clinic
Colin Wilbur1, Chinnuwat Sanguansermsri1, Hedi Chable1
11Division of Neurology,Department of Pediatrics,British Columbia Children's Hospital and University of British Columbia.
Insights
Tuberous sclerosis complex (TSC) affects many systems, with epilepsy and neuropsychiatric disorders causing the most significant issues in children. Early identification and multidisciplinary care are crucial for managing TSC manifestations.
Area of Science:
- Pediatric Neurology
- Genetics
- Dermatology
Background:
- Tuberous sclerosis complex (TSC) is a genetic disorder causing tumors in vital organs.
- Multidisciplinary management is recommended for children with TSC.
- Understanding TSC manifestations is key to determining care needs.
Purpose of the Study:
- To examine the clinical manifestations of TSC in a pediatric population.
- To identify the primary sources of morbidity in children with TSC.
- To inform the multidisciplinary care strategies for TSC patients.
Main Methods:
- Retrospective chart review of pediatric patients with TSC.
- Data collected from a large Canadian pediatric referral center.
- Patients identified via epilepsy and neurophysiology databases.
Main Results:
- 81 pediatric patients with TSC were analyzed.
- Epilepsy affected 91% of patients; 32% had infantile spasms.
- Neuropsychiatric disorders (autism, ADHD, anxiety) affected 49%; skin manifestations occurred in 91%.
Conclusions:
- Epilepsy and neuropsychiatric disorders are major causes of morbidity in pediatric TSC.
- Multisystem involvement (cardiac, renal, skin) is common.
- The prevalence of neuropsychiatric disorders may be underestimated in younger patients.
Background:
Tuberous sclerosis complex (TSC) is a neurocutaneous disorder with a wide spectrum of manifestations. Recent consensus recommendations stress the importance of multidisciplinary management of children with TSC. The objective of this study was to examine the manifestations of TSC at a large referral centre to determine the care needs of this population.
Methods:
A retrospective, systematic chart review was performed of children with TSC managed at British Columbia Children's Hospital. Patients were identified through epilepsy and clinical neurophysiology databases.
Results:
The study population comprised 81 patients, born between 1987 and 2014, who were a median of 10 years (range, 0.2-23.2) at most recent follow-up. Epilepsy occurred in 91% of patients, including 32% with a history of infantile spasms. Nineteen patients underwent epilepsy surgery, nine (47%) of whom were seizure-free at most recent follow-up. Overall, 61% of epilepsy patients had been seizure-free for at least 1 year at the time of last follow-up. Neuropsychiatric disorders were diagnosed in 49% of children, with autism (25%), attention deficit hyperactivity order (19%) and anxiety (16%) being the most common. Cardiac rhabdomyomata occurred in 35% of children and renal angiomyolipomas were seen in 43%. A total of 91% had skin manifestations.
Conclusion:
This study outlines the multisystem manifestations of TSC, observed through a large pediatric referral center. Epilepsy and neuropsychiatric disorders are the major source of morbidity in this age group and provide many challenges to the treating clinician. Because a subset of the study population is still quite young, the prevalence of neuropsychiatric disorders is likely underestimated.
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