Author:
Chiba Yasuhiro,Ishiwata Yusuke,Suzuki Noriyuki,Muramoto Masato,Kunimi Yumiko
Abstract
✓ A simple method is described for checking the patency of ventriculoperitoneal shunts by using a pair of small disc thermistors. With this technique, shunt patency is shown by a downward deflection of the recording trace, blockage of the ventricular catheter is indicated by a flat-line recording, and obstruction of the distal end of the abdominal catheter is demonstrated by an upward deflection. These observations were confirmed in a study of 32 hydrocephalic patients with obstructed shunts who subsequently underwent shuntography and operation. An experimental model was also devised to study the mechanism of the recording changes.
Publisher
Journal of Neurosurgery Publishing Group (JNSPG)
Cited by
15 articles.
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