Does the siphon effect of cerebrospinal fluid shunting develop in vivo? Report of a case casting doubt on the presence of this phenomenon.
A 52-year-old male underwent lumboperitoneal shunting after external decompressive craniectomy. His postoperative course was accompanied by remarkable displacement of the intracranial structures to the opposite side of craniectomy. This phenomenon, probably caused by the siphon effect of cerebrospinal fluid shunting, resolved after cranioplasty. This observation provides the evidence casting doubt on the presence of the siphon effect due to atmospheric pressure in patients without the association of skull defect or open cranial sutures.
Department of Neurosurgery, Tokyo Metropolitan Fuchu Hospital, Japan.
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Aoki
D015170:Cerebrospinal Fluid Pressure / Q000502:physiology*; D002557:Cerebrospinal Fluid Shunts; D006801:Humans; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000209:etiology*; D012886:Skull / Q000601:surgery; D013518:Surgery, Plastic; D014057:Tomography, X-Ray Computed