19 One study reported that early cranioplasty reduces operative time by facilitating soft tissue dissection before massive scar formation without causing additional complications like blood loss, infection, subdural hygroma
, and brain parenchymal damage.
The medical records show that on the 6th of March the patient was diagnosed with ventriculitis, on the 14th with multiple stress ulcers, on the 24th with left fronto-temporal subdural hygroma
, subsequently drained and on the 3rd of April a CT scan showed a subdural haematoma on the site of the drained hygroma and dilation of the ventricular system.
4,5) Although the term dural ectasia is preferred to describe the optic nerve sheath dilation, optic hydrops, primary cyst of the optic nerve sheath, patulous subarachnoid space, cystic hygroma, arachnoid cyst, and perioptic subdural hygroma
terms were all used to describe this entity since its first description in 1918.
As a postoperative complication of ventricular derivations, the subdural hygroma is a commonly known event, however it is rarely reported in association with the ETV.
This motivates us to perform a more detailed study of its physiopathological mechanisms, and brings us to make a review of the occurrence of the post-ETV subdural hygroma physiopathology.
We report a case of subdural hygroma secondary to accidental dural puncture while inserting an epidural catheter for postoperative analgesia.
Subdural hygroma is a rare complication of dural puncture and is probably due to the excessive loss of CSF from a dural leak lower in the spinal canal.
20) In rare cases, symptoms related to arachnoid cysts occur secondary to the rupture of these entities and the formation of a subdural hygroma and intracranial hypertension.
Arachnoid cyst rupture producing subdural hygroma and intracranial hypertension: Case reports.
14,22,44 Researchers reported a 50% rate of subdural hygroma
and hydrocephalus following DC, regressing spontaneously over weeks to months.
Parameters recorded were mortality, neurological outcome / complications like brain herniation, wound dehiscence, cerebrospinal fluid (CSF) leak, contusion expansion, sinking flap syndrome, subdural hygromas
Bilateral subdural hygromas
or hematomas may also accompany intracranial hypotension, and can be identified on the initial scan, although the cause of the collections may not be immediately recognized.