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  • Title: Slit-ventricle syndrome in shunt operated children.
    Author: Major O, Fedorcsák I, Sipos L, Hantos P, Kónya E, Dobronyi I, Paraicz E.
    Journal: Acta Neurochir (Wien); 1994; 127(1-2):69-72. PubMed ID: 7942186.
    Abstract:
    Chronic intracranial hypotension is considered as a frequent complication in shunted hydrocephalus, besides obstruction and shunt-infections. In the last twenty years 32 cases of slit-ventricle were diagnosed among the more than one thousand operations on hydrocephalic children at the Paediatric Department of the National Institute of Neurosurgery, Budapest, Hungary. Most of them have been operated on in infancy. Time from the first operation to the development of slit-ventricle ranged from one to twelve years, the mean was 6.5 years. Seven patients were symptomless (22%), while 25 patients (78%) had more or less severe slit-ventricle syndrome with headache (25 cases), nausea/vomiting (23 cases), altered consciousness (21 cases), brainstem signs (12 cases), and epileptic fits (2 cases). Ten patients with moderate clinical signs improved under conservative treatment. In 15 cases an anti-siphon device (ASD) was implanted. In five of them the clinical result was good, but in the remaining 10 cases typical hypertensive signs were seen. In these cases low flow rate valves were implanted instead of the middle flow rate valve and ASD. In one case the intracranial hypertension persisted, so a middle flow rate shunt system was "reimplanted" and finally the patient improved. In this study the experiences with these 32 cases will be analysed and discussed. The authors stress the primary use of combined valves to avoid the slit-ventricle syndrome.
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