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[Gas-no touch-enucleation].
1Univ.-Augenklinik Tübingen, Abteilung Augenheilkunde III.
Klinische Monatsblatter Fur Augenheilkunde
|November 1, 1988
Summary
This study introduces a gas no-touch enucleation technique to prevent cancer spread during eye surgery for choroidal melanomas. The method uses intravitreal gas injection to stabilize intraocular pressure (IOP), reducing metastasis risks.
Area of Science:
- Ophthalmology
- Surgical Oncology
- Oncology
Context:
- Choroidal melanomas pose a risk of metastasis after enucleation due to intraoperative IOP fluctuations.
- Current "no-touch" enucleation techniques aim to minimize tumor cell seeding.
- Zimmerman's theory links increased metastasis rates to IOP changes during surgery.
Purpose:
- To describe and evaluate a novel gas no-touch enucleation technique.
- To prevent intraoperative fluctuations in intraocular pressure (IOP) during enucleation of eyes with malignant melanoma.
- To minimize the risk of tumor cell dissemination into the bloodstream.
Summary:
- A technique involving intravitreal gas injection (air or expanding perfluorocarbon gases) was used in 22 enucleations for large choroidal melanomas (average base 15.1 mm, height 9.9 mm).
- Gas injection maximally elevated IOP, creating a "hemostatic clamp" that interrupted ocular circulation, preventing IOP fluctuations during the procedure.
- The technique is simple, requires no special instruments, does not increase surgery duration, and effectively maintained high IOP even in the enucleated eye.
Impact:
- The gas no-touch enucleation technique offers a viable, easily implementable alternative to existing "no-touch" methods like cryotherapy.
- It aims to significantly reduce the risk of metastasis in patients undergoing enucleation for choroidal melanoma.
- This approach enhances surgical safety and potentially improves outcomes for patients with ocular malignancies.