Delayed subdural fluid collections after Ommaya reservoir placement

Area of Science:

• Neurosurgery
• Infectious Diseases

Background:

• Delayed subdural fluid collections can complicate Ommaya reservoir placement, leading to neurological issues and treatment interference.
• Understanding risk factors for these collections is crucial for patient management.

Purpose of the Study:

• To identify risk factors for delayed subdural fluid collections post-Ommaya reservoir placement.
• To evaluate clinical outcomes associated with these collections.

Main Methods:

• Retrospective chart review of patients who underwent Ommaya reservoir placement between 2010-2019.
• Statistical analysis to determine significant risk factors.

Main Results:

• 11 out of 53 patients (21%) developed delayed subdural fluid collections.
• HIV infection was the only statistically significant risk factor (P=0.001).
• Thrombocytopenia, ventricle size, reservoir use, and catheter placement were not associated with collection development. Two HIV-positive patients required surgical evacuation.

Conclusions:

• Delayed subdural fluid collections are a notable complication of Ommaya reservoir placement, sometimes necessitating surgical intervention.
• HIV infection is linked to an increased risk of developing these collections.
• Patients with HIV may benefit from enhanced monitoring or modified management strategies.