Among the MRI-suspected LGG, kinetic but not conventional analysis of FET uptake enabled remarkably high sensitivity for detection of HGG. This held true even for lesions with low or diffuse tracer uptake. Lesions with reduced tracer uptake must be interpreted with caution, as they can also harbour HGG tissue.
As shown in a single-center observation, surgical correction of metopic suture synostosis not only refines esthetic appearance but also might improve neurodevelopmental outcome if deficits are apparent, even in syndromic forms of the deformity under additional physiotherapy, logopedic, or neurobehavioral support.
PURPOSE: This study was performed to evaluate the incidence of seizures with its implications on disease progression and the diagnostic value of post-ictal magnetic resonance images (MRI) during the management of highgrade gliomas (HGGs). PATIENTS AND METHODS: A total of 406 consecutive patients with newly diagnosed HGGs were retrospectively reviewed. The incidence of seizure attacks during the management was investigated. In patients who experienced a seizure, the causality between seizures and disease progression was assessed by pre-ictal, post-ictal (,1 month), and follow-up (,3 months) MRI. RESULTS: After a mean follow-up of 21.9 months (range, 0.1 -88.3), seizure attacks developed in 127 patients (31%). Of the 127 patients, radiological progression at the post-ictal MRI was found in 83 patients (65%) and the follow-up MRI confirmed progression in 79 patients (62%). However, other 4 patients (3%) were shown to be progression-free. Among those without radiological progression at the post-ictal MRI, the follow-up MRI confirmed progression-free in 31 patients (24%); however, 13 patients (10%) revealed eventual progression. In the patients with a seizure, absence of preoperative seizure (p ¼ 0.003), , 95% tumor resection (p ¼ 0.001), and pre-ictal Karnofski Performance Scale score ≤ 70 (p ¼ 0.025) were significantly associated with disease progression. CONCLUSION: During the management of HGG, 31% of patients experienced seizures; of these patients, 72% harbored progressive disease. The post-ictal MRI is useful for detecting disease progression; however, there are pitfalls. Clinical settings should be considered together for diagnosing disease progression in patients with seizures.
The clinical and radiological outcomes after microsurgical fenestration in children with an isolated fourth ventricle are very promising. This treatment modality is a safe and effective shunt-free option when electrophysiological monitoring and thorough preoperative neuroradiological work-up are applied.
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