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Aggravation of Symptomatic Occipital Epilepsy of Childhood by Carbamazepine Pogoršanje Simptomatske Okcipitalne Deþje Epilepsije Izazvano Karbamazepinom

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Aggravation of Symptomatic Occipital Epilepsy of Childhood by Carbamazepine Pogoršanje Simptomatske Okcipitalne Deþje Epilepsije Izazvano Karbamazepinom Strana 404 VOJNOSANITETSKI PREGLED Vojnosanit Pregl 2014; 71(4): 404–407. UDC: 615.03:616853-08-036]:616-053.2 CASE REPORT DOI: 10.2298/VSP1404404S Aggravation of symptomatic occipital epilepsy of childhood by carbamazepine Pogoršanje simptomatske okcipitalne deþje epilepsije izazvano karbamazepinom Fadil E. Škrijelj, Mersudin Muliü State University of Novi Pazar, Novi Pazar, Serbia Abstract Apstrakt Introduction. Carbamazepine can lead to aggravation of Uvod. Karbamazepin može dovesti do pogoršanja epilepti- epileptic seizures in generalized epilepsies (primary or sec- ÿnih napada kod generalizovanih epilepsija (primarnih ili se- ondary) with clinical manifestations of absence (typical or kundarnih), koje u kliniÿkoj slici imaju apsanse (tipiÿne ili atypical) and/or myoclonic seizures. However, some focal atipiÿne) i/ili mioklonusne napade. I neke fokalne epilepsije, epilepsies can be also aggravated by the introduction of car- meĀutim, mogu se pogoršati uvoĀenjem karbamazepina. bamazepine. Case report. We presented a 10-year-old boy Prikaz bolesnika. Prikazali smo deÿaka, starog 10 godina, born after a complicated and prolonged delivery completed roĀenog posle komplikovanog i produženog poroĀaja koji by vacuum extraction, of early psychomotor development je završen vakuum ekstrakcijom, urednog ranog psihomo- within normal limits. At the age of 8 years he had the first tornog razvoja. U 8 godini imao je prvi epileptiÿni napad, ti- epileptic seizure of simple occipital type with generalization pa jednostavnog okcipitalnog, sa generalizacijom i umokra- and urination. Brain magnetic resonance imaging (MRI) vanjem. Nalaz snimanja magnetnom rezonancom (MRI) showed focal cortical reductions in the left parietal and oc- mozga ukazao je na fokalne kortikalne reduktivne promene cipital regions. Interictal EEG recorded slowed basic activi- parietookcipitalno, levo. Interiktusni EEG je beležio uspo- ties above the posterior regions of the left hemisphere, with renu osnovnu aktivnost iznad zadnjih regiona leve hemisfe- intermittent occurrence of occipital sharp waves and bioc- re, sa povremenim izbijanjem okcipitalnih oštrih talasa, i bi- cipital sharp and slow-wave complexes. Initially, treatment okcipitalnih oštar talas-spori talas kompleksa. U poÿetku de- with valproate was administered; however, the addition of ÿak je leÿen valproatom, a kada je u terapiju uveden i kar- carbamazepine into therapy induced aggravation of seizures bamazepin, došlo je do pogoršanja napada, EEG nalaza, and EEG findings, changed behavior and poor performance promene ponašanja i lošeg uspeha u školi. Iskljuÿenjem kar- at school. By withdrawal of carbamazepine the condition im- bamazepina stanje se popravilo, kako kliniÿki, tako i u EEG proved both clinically and in EEG findings. Conclusion. nalazu. Zakljuÿak. Lezione okcipitalne epilepsije u detinj- Childhood occipital epilepsy lesions show deterioration due stvu pokazuju pogoršanje sa karbamazepinom, jer posle to carbamazepine, which if administered induces aggravation njegovog uvoĀenja dolazi do pogoršanja napada, promena of seizures, behavior changes, cognition with occurrence of ponašanja, kognicije sa pojavom dugotrajnih bilateralnih long-term bilateral discharges, and posterior sharp and slow- pražnjenja i posteriornih oštar talas-spori talas kompleksa wave high amplitude complexes recorded by EEG. visoke amplitude u EEG. Key words: Kljuÿne reÿi: epilepsies, partial; seizures; valproate acid; epilepsije, parcijalne; konvulzije; valproinska kiselina; carbamazepine; chilld; treatment outcome; drug karbamazepin; deca; leÿenje, ishod; lek, incompatibility. inkompatibilnost. Introduction manifestation of seizures, while the expected normalization of epileptiform EEG abnormalities is a reasonable therapeutic The basic goal of antiepileptic therapy (AET) is to fully goal. The basic precondition of successful treatment is making control seizures with a satisfactory quality of life of the pa- the correct diagnosis of epilepsy. The type of seizures, the type tient. AET is primarily aimed at the suppression of clinical of epileptic syndrome and etiology of epilepsy should be de- Correspondence to: Fadil E. Škrijelj, State University of Novi Pazar, Vuka Karadžiýa bb, 36 300 Novi Pazar, Serbia. Phone: + 381 20 317 050; + 381 63 687 743. E-mail: [email protected] Volumen 71, Broj 4 VOJNOSANITETSKI PREGLED Strana 405 termined as soon as possible, as this will influence the choice of medication, mode of treatment and prognosis 1. Today AET is still the first-line method in the treatment of most epilepsies, while the choice of drugs is in constant increase 2. Carbamazepine (CBZ) is an antiepileptic with a wide clinical application in treatment of focal and secondary gener- alised tonic-clonic (GTC) seizures. Idiopathic generalized epilepsies (IGE), such as juvenile absence epilepsy, juvenile myoclonic epilepsy and epilepsy with GTC seizures on awak- ing feature seizure aggravation when CBZ is introduced into therapy 3, 4. Epilepsies with clinical manifestations involving absences and/or myoclonic seizures, and EEG recording with bilateral generalized 4–6 Hz spike-and-wave complex dis- charges, show clinical and EEG worsening by introduction of Fig. 1 – EEG before introduction of carbamazepine (CBZ) CBZ 4. CBZ-induced aggravation of focal idiopathic epilepsies into therapy. is atypical form of childhood benign epilepsies with centro- 5 temporal spikes (atypical BECTS) , atypical cases of gion it was implicitly concluded that this was indicative of a Panayiotopoulos syndrome 6, and cases of late idiopathic oc- 7 symptomatic epileptic lesion of the occipital lobe with sec- cipital epilepsies of childhood (Gaustat type) . Focal sympto- ondary generalization. Valproat (VAL) in the dose of 30 matic epilepsies presenting aggravation by CBZ are occipital mg/kg/day was included into therapy, which resulted in a epilepsies of childhood with unilateral or bilateral occipital 5 complete control of secondary GTC seizures over a 6-month sharp-wave and slow-wave complexes recorded by EEG . period. As the patient still complained of occasional visual CBZ is also contraindicated in the following syndromes: problems followed by headaches, CBZ in dose of 10 Dravet, Dosse, Lennox-Gastaut, Angelman, Landau-Kleffner mg/kg/day was also included into therapy. After including of and epileptic syndrome with bilateral continuous spike-and- 7–11 CBZ, GTC seizures relapsed, which led the neurologist to wave activity during slow-wave sleep,… . Besides, their increase the dose of CBZ to 30 mg/kg/day, without previ- EEGs demonstrate bilateral discharges of spike-multiple spike ously performing a check-up EEG. Beside the aggravation of and slow-wave complexes at 1–2.5 Hz, which clinically often seizures, the parents noticed changes in the child’s behavior: correlates with atypical absences and myoclonic seizures. he seemed withdrawn, often aggressive and performed Misinterpretation of focal discharges as recorded by EEG in poorly at school. Being dissatisfied with the developed idiopathic generalized epilepsies and consecutive inclusion of situation, the parents turned to another neurologist. EEG was CBZ, the medication for focal seizures, leads to the paradoxi- 12 performed showing the presence of long-term bilateral dis- cal aggravation of seizures . charges of a posterior sharp wave-slow-wave complex at 1– 1.5 Hz, amplitude exceeding 300 ȝV (Figure 2), which are Case report We reported a 10-year-old boy, body weight (BW) 63.5 kg, body height (BH) 148 cm, born of the first term preg- nancy after a complicated and prolonged delivery completed by vacuum extraction, with normal early psychomotor de- velopment, normal neurological and psychiatric status, nega- tive heredity for epilepsy, febrile attacks, inflammatory and traumatic brain disorders. At the age of 8, one morning after breakfast, the boy developed the first epileptic seizure, which, according to the patient’s case history and the parents initiated with optical images of bright colored circles, head- ache, version of the eyes and head to the left, tonic-clonic convulsions right-sided at onset and later of the whole body, loss of consciousness and urination. Seizures occurred every 1–2 months, during the day only. Standard EEG demon- Fig. 2 – Long-term discharges of bilateral posterior high- strated a slow basic activity above the posterior region of the voltage sharp-wave and slow-wave complex. left hemisphere with occasional focal sharp spike-slow-wave complexes or slow-waves at 4–5 Hz in the left parietal- seen in aggravation by carbamazepine. On check-up, blood occipital and temporal-occipital regions (Figure 1). Short bi- antiepileptic (VAL and CBZ) levels were within the thera- occipital sharp and slow-wave complexes at 1.5 Hz, ampli- peutic levels. Based on the deterioration of clinical features tude exceeding 100 ȝV with left-sided predomination were and EEG findings, it was concluded that CBZ was probably also recorded. In view of such EEG findings in correlation the cause of the developed condition. By withdrawal of CBZ, with cortical MRI reductions in the left parietal-occipital re- secondary GTC seizures ceased, as well as the long-standing Škrijelj EF, Muliý M. Vojnosanit Pregl 2014; 71(4): 404–407. Strana 406 VOJNOSANITETSKI PREGLED Volumen 71, Broj 4 bilateral discharges of the high-voltage posterior sharp wave- epilepsy when it essentially depends on the type and size of slow-wave complex (Figure 3). Carbamazepine was replaced the causal lesion. Pharmacoresistance is
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