Abstract
A small number of human fetal hydrocephalics have been treated by ventriculoamniotic shunts of silastic tubing [2, 5, 7, 8, 10, 22]. The Colorado device appears to be the one most commonly used [2]. The original experimental device tested on a primate model resembled a hollow shingle nail. This was designed by Michedja and Hodgen, contained a spring valve, measured approximately 32×4 mm and was placed by hysterotomy [16]. An attractive feature of this design was its fixation by impaction in the skull, preventing displacement by fetal activity, a reported disadvantage with the silastic devices [2, 10]. To our knowledge, no one has used this nail-like design and tailored it to transuterine percutaneous placement in a human case.
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Saunders, R.L., Simmons, G.M., Edwards, W.H. et al. A cranial nail for fetal shunting. Child's Nerv Syst 1, 185–188 (1985). https://doi.org/10.1007/BF00735737
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DOI: https://doi.org/10.1007/BF00735737