[Delayed XXXX following VP shunt operation].

@entity1 @entity410 @entity455 @entity932 @entity548 @entity1276 @entity75 @entity510 @entity12906 @entity1269 @entity428 @entity10 @entity1779
Three cases of communicating @entity1276 after @entity510 are reported that underwent ventriculoperitoneal shunt and suffered from delayed @entity1779 along the ventricular catheter. Ventricular catheters were inserted into the posterior horn with minimal @entity75 by our method, in case 1 and 2, 3 times try of ventriculostomy, in case 3, replacement along the same route on the shunt revision. Blood pressure control after the operation was good and @entity548 tendency was not observed. @entity455 was not found in preoperative angiography in any case. In case 1, 60 year-old @entity1 , @entity1779 occurred on the 7th-9th postoperative day as the result of @entity12906 and generalized @entity410 which needed assisted ventilation for two days. In case 2, 54 year-old @entity1 and case 3, 59 year-old @entity1 , @entity10 and @entity1269 suddenly developed immediately after micturition 4 days after operation. Postoperative CT scan revealed that cranioplasty, performed at the same time as shunt operation, caused mass effect on the shunted side of the brain in case 2. In case 3, VP shunt system revised did not seem to function so well. These conditions might predispose the shunted brain to bleed, in addition to the @entity428 or blood pressure probably produced by Valsalva effect at micturition. These cases indicate that the small surgical wound in the brain induced by shunt procedure could cause @entity455 and bring about delayed @entity932 under some predisposing factors.
