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Isolation of Perivascular Multipotent Precursor Cell Populations from Human Cardiac Tissue
Published on: October 8, 2016
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Paediatric Cardiac Tumours: A National Population Study
1Department of Paediatric Cardiology, Royal Hospital for Children, Glasgow, UK.
Pediatric Cardiology
|May 14, 2025
Summary
Paediatric cardiac rhabdomyomas, often linked to Tuberous Sclerosis Complex (TSC), are the most common heart tumors. Early identification and targeted therapies like mTOR inhibitors can improve outcomes for affected children.
Area of Science:
- Cardiology
- Genetics
- Oncology
Background:
- Paediatric cardiac tumours are rare, with rhabdomyomas being the most common, often associated with Tuberous Sclerosis Complex (TSC).
- TSC is a genetic condition caused by variants in TSC1 or TSC2 genes, leading to potential cardiac complications like arrhythmias and obstructed blood flow.
Purpose of the Study:
- To analyze the characteristics and outcomes of paediatric cardiac tumours over 23 years.
- To investigate the association between tumour type, TSC, and clinical manifestations.
- To evaluate the effectiveness of targeted therapies for benign cardiac tumours.
Main Methods:
- A 23-year retrospective study of patients with cardiac tumours referred to the National Scottish Paediatric Cardiology service.
- Analysis of tumour type, patient demographics, genetic associations (TSC1/TSC2), arrhythmias, and treatment modalities.
- Statistical analysis to determine significant associations (e.g., rhabdomyomas in TSC, extra-cardiac symptoms).
Main Results:
- 51 paediatric cardiac tumours identified; 93.6% were benign.
- Rhabdomyomas were the most common tumour type overall and in patients with TSC (p = 0.000861).
- 18% of benign tumours had documented arrhythmias, and TSC subtypes showed significant extra-cardiac symptom burden (p = 0.00105), especially TSC2-related renal and neurological issues.
Conclusions:
- Paediatric cardiac rhabdomyomas, particularly those associated with TSC, require careful management due to potential complications.
- Targeted therapies, including mTOR inhibitors for rhabdomyomas and beta-blockers for haemangiomas, are effective.
- Genetic counselling for TSC families is crucial for understanding long-term morbidity and mortality risks, especially in TSC2 cases.
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