Death after late failure of endoscopic third ventriculostomy: a potential solution

Area of Science:

• Neurosurgery
• Medical Devices
• Hydrocephalus Management

Background:

• Late failure of endoscopic third ventriculostomy (ETV) is a rare but serious complication.
• Mortality due to late ETV failure has been documented in a limited number of cases.
• Existing management strategies for late ETV failure may not adequately address acute complications.

Purpose of the Study:

• To introduce a simple technical innovation to mitigate risks associated with late failure of ETV.
• To describe a method that adds minimal morbidity while potentially improving patient outcomes.
• To present a technique that could reduce the incidence of death following ETV failure.

Main Methods:

• Endoscopic fenestration of the third ventricle floor.
• Placement of a ventricular catheter and subcutaneous reservoir through the endoscopic path.
• Cerebrospinal fluid (CSF) removal via reservoir puncture in cases of acute blockage and neurological decline.

Main Results:

• Over 240 ETV procedures performed between 1979 and 2003, with one recorded death from late failure.
• The revised technique, incorporating a reservoir, has been applied to 21 patients.
• The innovation was developed following a fatal late failure event.

Conclusions:

• The addition of a subcutaneous reservoir to ETV is associated with minimal increase in procedure time and morbidity.
• The reservoir facilitates cerebrospinal fluid sampling and intracranial pressure monitoring.
• This technique holds potential for reducing mortality rates linked to late endoscopic third ventriculostomy failure.