Reexpansion of previously collapsed ventricles: the slit ventricle syndrome

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✓ This study reports six cases of hydrocephalic children with the “slit ventricle syndrome” who evidenced reexpansion of the ventricular system following insertion of high-resistance valves and anti-siphon devices. The authors contend that slit ventricles and subsequent ventricular coaptation can be prevented by elimination or early replacement of low-resistance valves, and maintenance of normal- or nearly normalsized ventricles by shunt revision with valve upgrade and/or an anti-siphon device, as judged by the appearance of the ventricles on computerized tomography.

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Address reprint requests to: Harold L. Rekate, M.D., 2074 Abington Road, Cleveland, Ohio 44106.

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Figures

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    Left: Original air-Conray ventriculogram of neonatal aqueductal stenosis with hydrocephalus. Right: Air ventriculogram showing markedly small ventricles causing proximal ventricular catheter obstruction.

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    Air-Conray ventriculogram showing three ventricular catheters in place.

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    Plain computerized tomography scans. Left: The patient has persistent slit ventricles. Right: After placement of the anti-siphon device, the uncontrasted scan shows biparieto-occipital reexpansion of the ventricular system.

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    Computerized tomography scans showing slit ventricles (left), temporary bilateral occipital horn dilatation immediately following subtemporal craniectomy (center), and recurrent slit ventricles 3 years after subtemporal craniectomy (right).

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    Subtemporal craniectomy for decompression of proximal shunt obstruction.

References

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