Treatment of Calcified Hematoma Causing Seizures

Medical Management

The American Academy of Neurology recommends levetiracetam or lamotrigine as preferred first-line antiepileptic drugs due to their efficacy and overall good tolerability profile 1, 2, 3
Valproate may be considered as an alternative antiepileptic drug, particularly if psychiatric side effects occur with levetiracetam 4
Enzyme-inducing anticonvulsants like phenytoin, phenobarbital, and carbamazepine should be avoided due to their side-effect profiles and drug interactions with steroids and other medications 1, 2, 5

Patients with calcified lesions and seizures should receive antiepileptic drugs for seizure control, according to the Infectious Diseases Society of America 6, 7
If seizures are well-controlled, consider tapering and discontinuing antiepileptic drugs after 6 months of seizure freedom, but only if there are no risk factors for recurrent seizures, as recommended by the Clinical Infectious Diseases guidelines 8, 7
Risk factors for seizure recurrence include residual lesions, breakthrough seizures, or history of multiple seizures, as identified by the Clinical Infectious Diseases guidelines 8, 7

Brain MRI should be performed in patients with seizures and calcified parenchymal lesions, as recommended by the Clinical Infectious Diseases guidelines 8, 7
Follow-up MRI should be repeated at least every 6 months until resolution of any associated cystic components, according to the Clinical Infectious Diseases guidelines 8, 7

Surgical removal should be considered in patients with refractory epilepsy despite optimal medical management, as recommended by the Clinical Infectious Diseases guidelines 8, 7, 9
Preoperative mapping of the seizure focus may be necessary, particularly for lesions near eloquent cortex in the frontal region, according to the Annals of Oncology guidelines 1

Corticosteroids are recommended in the perioperative period to decrease brain edema, as suggested by the Clinical Infectious Diseases guidelines 7, 9
Antiepileptic drugs should be continued throughout the perioperative period to prevent breakthrough seizures, according to the Annals of Oncology guidelines 1, 2

Regular follow-up with EEG may help detect subclinical seizures and guide antiepileptic drug management, as recommended by the Annals of Oncology guidelines 2, 5
Monitor serum drug levels to ensure therapeutic range and evaluate for toxicity, especially with valproate, according to the Praxis Medical Insights guidelines 4
Do not use phenytoin in patients with intracranial hemorrhage due to associated excess morbidity and mortality, as warned by the Praxis Medical Insights guidelines 4
Do not routinely use corticosteroids in patients with isolated calcified parenchymal lesions and perilesional edema unless there are specific indications, as recommended by the Clinical Infectious Diseases guidelines 8, 7