Pudenz antisiphon device tear as a cause of shunt malfunction.
Antisiphon device (ASD) tear was found in nine patients who underwent ventriculoperitoneal (VP) shunt revision of a Pudenz three-piece system. In six cases this was the only finding, in three, there was an associated distal malfunction. Repair of ASD tear constituted 27% of our shunt revision procedures. The locus minoris resistentia of the Pudenz ASD is the attachment of the diaphragm to the cylinder. ASD tear should be suspected whenever a noninflammatory fluid collection of a CSF leak are found at the proximal extracranial section of this system.
Borowitz
B
B
Department of Neurosurgery, Hadassah University Hospital, Jerusalem, Israel.
Ashkenazi
E
E
Muallem
N
N
Constantini
S
S
D002557:Cerebrospinal Fluid Shunts / Q000009:adverse effects / Q000295:instrumentation*; D002648:Child; D002675:Child, Preschool; D006801:Humans; D006849:Hydrocephalus / Q000601:surgery*