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Chiari type I malformation in children
L S Dure1, A K Percy, W R Cheek
1Department of Pediatrics, Baylor College of Medicine, Houston, TX 77030.
Insights
Suboccipital decompression effectively treated symptomatic Chiari type I malformation in children. This surgery resolved symptoms or prevented progression in varied cases, including scoliosis and apnea.
Area of Science:
- Pediatric Neurosurgery
- Neurology
- Medical Imaging
Background:
- Chiari type I malformation can present with diverse symptoms in children.
- Diagnosis often relies on advanced imaging techniques.
Purpose of the Study:
- To evaluate the outcomes of suboccipital decompression for pediatric Chiari type I malformation.
- To highlight the varied clinical presentations and diagnostic role of MRI.
Main Methods:
- Retrospective review of 11 children with symptomatic Chiari type I malformation.
- Assessment of clinical presentations, neurological findings, and magnetic resonance imaging (MRI) results.
- Surgical outcomes following suboccipital decompression were analyzed.
Main Results:
- Common presenting complaints included scoliosis, apnea, and neck pain.
- MRI confirmed Chiari type I malformation and tonsillar herniation in all cases.
- Suboccipital decompression led to symptom resolution or halted progression in all patients.
Conclusions:
- Chiari type I malformation in children can manifest with unusual symptoms.
- Suboccipital decompression is a favorable surgical treatment for symptomatic pediatric Chiari type I malformation.
- MRI is crucial for accurate diagnosis and surgical planning.
Abstract:
We reviewed the recent experience at Texas Children's Hospital by examining the records of 11 children who underwent suboccipital decompression for symptomatic Chiari type I malformation. Presenting complaints included neck pain (1 child), scoliosis (4 children), back pain (1 child), torticollis (1), motor dysfunction (1), and apnea (3 children). Neurologic findings were normal in 7 of the 11 children. The craniocervical junction and medulla were studied by magnetic resonance imaging, which revealed anatomy consistent with Chiari type I malformation in all cases. At surgery, all patients had tonsillar herniation to the first cervical vertebra or below. Three patients had syringomyelia. Postoperatively, either the patients were symptom free or, in the cases of scoliosis and torticollis, there was no progression. Our experience suggests that Chiari type I malformation may occur in childhood with varied and unusual clinical findings. Magnetic resonance imaging was essential to the diagnosis; the presence of tonsillar herniation was confirmed at surgery. The results of suboccipital decompression were favorable in this series.