Evaluation of Subconjunctival Remnant Particles after High-frequency Radio-wave Electrosurgery for Conjunctivochalasis
| Autor: | Chul Young Choi, Seong Ho Kim, In Tae Kim |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Male
Conjunctival injection Electrosurgery Visual acuity genetic structures Scanning electron microscope medicine.medical_treatment High-definition optical coherence tomography Slit Lamp Microscopy Conjunctival Diseases 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine Optical coherence tomography Medicine Humans Major complication Polytetrafluoroethylene Aged Retrospective Studies medicine.diagnostic_test Conjunctivochalasis business.industry High-frequency radio-wave electrosurgery General Medicine Middle Aged medicine.disease Radiofrequency Therapy Treatment Outcome chemistry 030221 ophthalmology & optometry Microscopy Electron Scanning Original Article Female sense organs medicine.symptom business Nuclear medicine Conjunctiva 030217 neurology & neurosurgery Tomography Optical Coherence Follow-Up Studies |
| Zdroj: | Korean Journal of Ophthalmology : KJO |
| ISSN: | 2092-9382 1011-8942 |
| Popis: | Purpose To investigate the clinical manifestations and properties of remnant particles in the subconjunctival space after high-frequency radio-wave electrosurgery for conjunctivochalasis. Methods We performed a retrospective, observational case series with in vitro experimental imaging in nine eyes from eight patients who presented with small dark-gray lesions during follow-up after high-frequency radio-wave electrosurgery for conjunctivochalasis. General examination including slit-lamp examination and visual acuity testing was performed preoperatively and postoperatively. During follow-up, we evaluated remnant particles and any other complications including granuloma or conjunctival injection with slit-lamp photography and anterior optical coherence tomography. Coagulation tips were investigated with scanning electron microscope and energy dispersive X-ray spectroscopy to analyze the insulating electrode and assess changes to tips after repeated use. Results None of the patients included in this study experienced any change in visual acuity or major complications postoperatively. Small dark-gray lesions (0.3 to 0.5 mm in size) were observed in the inferior bulbar sub-conjunctival space in the location where high-frequency radio-wave electrosurgery had been performed. Cirrus high-definition optical coherence tomography images revealed focal hyper-reflection with a posterior shadow, suggesting foreign particles. Scanning electron microscopy and energy dispersive X-ray spectroscopy imaging analysis revealed peaks of carbon and fluorine complexes, consistent with the polytetrafluoroethylene coating on the electrode. Conclusions There were no instances of inflammatory reaction, particle migration, or major complications due to particles. Physicians should be aware of the possibility of remnant polytetrafluoroethylene particles in subconjunctival tissue when using insulated coagulation tips subjected to repeat sterilization. |
| Databáze: | OpenAIRE |
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