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Journal of Korean Neurosurgical Society 1997;26(4): 513-517. |
| Radiologic Location of Ventricular Tip and the Patency of Ventriculoperitoneal Shunt. |
| Tai Hyoung Cho, Jung Yul Park, Ja Kyu Lee, Yoon Kwan Park, Hung Sub Chung, Ki Chan Lee, Hoon Kap Lee |
| Department of Neurosurgery, Korea University, Seoul, Korea. |
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| ABSTRACT |
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Proximal cerebrospinal fluid shuntmalfunction due to ventricular catheter occlusion remains the most common sourceof the shunt problem. The position of the hole-bearing segment of the catheter affects the long term patency of the ventricular catheter of a cerebrospinalfluid shunt.Placementof thissegmentnear thechoroidplexus or injured ependyma increases the probability of obstruction.
Accurate locationof ventriculoperitoneal(V-P)shunt tip inrelation to foramen Monro canbe well establishedby plain radiographyregardless of agesor sizes and shapes of head dueto the fact that foramen Monro tothe spatial matrix of the skull is constant. Of 147patients who underwentV-P shunt operations, 49(33.3%)patients had more thanone operations.
Radiologicgradingof theventricularcatheterposition is compared betweensingle operatedgroup andreoperated group.Single operated group showed excellentin 33.6%, good41.8%, poor 24.4%of accuracy rateof catheter tip position. Incases ofreoperation, placement ofcatheter tipresulted in excellent 12.5%, good21.8%, and poor 65.6%.These results indicatethat accurate location of ventricular catheter tip affects favorably to the patency of V-P shunt. |
| Key Words:
Ventriculoperitoneal shunt; Ventricularcatheter; Shuntobstruction; Foramen Monro |
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