A facility reported that on (b)(6) 2021, a certas valve (ref.
(b)(4)) was implanted in a (b)(6) year-old male patient due to internal occlusive post-inflammatory hydrocephalus.
In the postoperative period there was an increase of the intracranial hypertension and the patient was experiencing headaches in the frontal region and vomiting.
On (b)(6) 2021, x-ray computed tomography showed signs of an enlarged fourth ventricle, internal occlusive hydrocephalus, dislocation of the cerebellar tonsils into the foramen magnum.
On (b)(6)2021 the patient underwent revision surgery: vp shunt revision, replacement of the programmable valve with ((b)(4)) with pressure level - setting 4.
There was an improvement in patient's well-being after revision surgery.
Cerebral symptoms regressed.
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