Related Experiment Videos
Stereotactic insertion of an ommaya reservoir: technical note
M W McDermott1, S F Ciricillo, P H Gutin
1Department of Neurological Surgery, School of Medicine, University of California, San Francisco, USA.
Summary
This study introduces a simplified technique for stereotactic catheter placement into deep-seated tumors or cysts. The method ensures accurate catheter positioning with an Ommaya reservoir in a single pass, minimizing complications.
Area of Science:
- Neurosurgery
- Medical Devices
- Oncology
Background:
- Stereotactic catheter insertion into deep-seated tumors or cysts is technically challenging.
- Connecting the catheter to an Ommaya reservoir while maintaining position is difficult.
- A novel technique simplifies the placement of a catheter-Ommaya reservoir construct.
Purpose of the Study:
- To describe a new technique for the one-pass placement of a catheter-Ommaya reservoir construct.
- To simplify the procedure of accessing deep-seated tumors or cysts stereotactically.
- To reduce complications associated with catheter-Ommaya reservoir placement.
Main Methods:
- Standard stereotactic imaging is employed.
- The distance from the skull's outer table to the target is measured.
- A pre-assembled catheter-Ommaya reservoir construct is directed to the target using a Cosman-Robert-Wells (CRW) stereotactic frame.
Main Results:
- The technique successfully placed catheters into tumors or cysts in 12 patients.
- Accurate catheter placement was achieved.
- No surgical complications were reported.
Conclusions:
- The described technique is simple, safe, and reliable.
- It requires no specialized equipment.
- It mitigates the risk of catheter dislodgement during Ommaya reservoir connection, reducing cyst leakage and collapse.