Fig. 5

Case presentation before and after shunt adjustment of the abdominal segment of the shunt in patients with shunt insufficiency due to abdominal segment factors after ventriculoperitoneal shunt. A–F Male, 11 years old: Right lateral ventriculoperitoneal shunt was performed due to “three-ventriculoposterior space-occupying lesions with hydrocephalus.” Eight years after the first surgery, he complained of “intermittent headache for 1 month, aggravated with vomiting for 5 days.” A CT before the adjustment of the abdominal end of the shunt catheter after VP showed bilateral dilatation of the lateral ventricle, interstitial edema of the frontal angle of the lateral ventricle (red arrow), and swelling of brain tissue. B The first anteroposeural X-ray of the abdomen before adjustment of the shunt abdominal end shows the position of the end of the shunt abdominal end (red arrow). C The second anteroposeural X-ray of the abdomen before the adjustment of the abdominal end of the shunt (reviewed 5 h after the first X-ray) showed that the position of the distal end of the abdominal end of the shunt was fixed and unchanged (red arrow). D CT after the adjustment of the abdominal end of shunt catheter showed that bilateral lateral ventricles were smaller than before, interstitial brain edema was reduced, and brain tissue swelling was reduced. E The position of the end of the abdominal end of the shunt catheter (red arrow) was shown in the first anteropoetal abdominal X-ray after the adjustment of the abdominal end of the shunt catheter. F The second anteropoetal X-ray of the abdomen after the adjustment of the abdominal end of the shunt shows the change in the position of the abdominal end of the shunt (red arrow)