European journal of neurology · 2009
Epileptic seizures and survival in early disease of grade 2 gliomas.
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Danfors T, Ribom D, Berntsson S G, Smits A
Аннотация
BACKGROUND AND PURPOSE: The aims of this study were (i) to determine the correlation between seizure activity and the metabolic rate of the tumour measured by (11)C-methionine PET (MET PET) in patients with grade 2 gliomas, and (ii) to assess the prognostic impact of early seizure manifestations on patient survival.
METHODS: In this retrospective review, early seizure manifestations were studied in 101 patients with supratentorial grade 2 gliomas subjected to MET PET as part of the pre-treatment tumour investigation. Seizure manifestations as a variable was then used in multivariate survival analyses, together with established prognostic factors for this patient group.
RESULTS: Of all 101 cases, 88 patients had seizures at tumour presentation. Forty-seven were seizure free at the early stage of the disease, whereas 54 had recurrent seizures. Patients with seizures at tumour presentation had a more favourable outcome before and after (P = 0.006) adjustment for conventional prognostic factors. However, for those who continued to have seizures early in the disease, the outcome was worse (P = 0.003). We found no significant correlation between MET PET and the seizure manifestations of the patients.
CONCLUSION: The presence and termination of early seizure manifestations may be favourable prognostic factors in patients with low-grade gliomas.
METHODS: In this retrospective review, early seizure manifestations were studied in 101 patients with supratentorial grade 2 gliomas subjected to MET PET as part of the pre-treatment tumour investigation. Seizure manifestations as a variable was then used in multivariate survival analyses, together with established prognostic factors for this patient group.
RESULTS: Of all 101 cases, 88 patients had seizures at tumour presentation. Forty-seven were seizure free at the early stage of the disease, whereas 54 had recurrent seizures. Patients with seizures at tumour presentation had a more favourable outcome before and after (P = 0.006) adjustment for conventional prognostic factors. However, for those who continued to have seizures early in the disease, the outcome was worse (P = 0.003). We found no significant correlation between MET PET and the seizure manifestations of the patients.
CONCLUSION: The presence and termination of early seizure manifestations may be favourable prognostic factors in patients with low-grade gliomas.