To report breakage of a 25 gauge vitreous cutter during vitreous surgery. Int erventional case report. A 60 year old woman was referred for management of an epiretinal membrane at the macula. Visual acuity was 20/100 ...To report breakage of a 25 gauge vitreous cutter during vitreous surgery. Int erventional case report. A 60 year old woman was referred for management of an epiretinal membrane at the macula. Visual acuity was 20/100 in the affected lef t eye. Vitreous surgery using a 25 gauge vitrectomy system was carried out with a combination of conventional cataract surgery. The vitreous cutter was lodged within the sclerotomy cannula after peripheral vitrectomy and was pulled togethe r with the cannula. The cannula was reinserted by trocar, but as the floating pe eled epiretinal membrane was dissected with the vitreous cutter, the tip of the cutter was broken and was aspirated with the membrane. Stereoscopic microscopy a nd scanning electron microscopy demonstrated that the edge that had broken at th e cutter port was smooth. Although 25 gauge instruments remain useful, care sho uld be taken against rare surgical complications related to their fragility.展开更多
Aims: To develop a minimally invasive, maximally effective method to biopsy an terior segment tumours. Methods: A 25 gauge aspiration cutter (vitrector) was us ed to biopsy anterior segment tumours. The probe was intr...Aims: To develop a minimally invasive, maximally effective method to biopsy an terior segment tumours. Methods: A 25 gauge aspiration cutter (vitrector) was us ed to biopsy anterior segment tumours. The probe was introduced under sodium hya luronate 1%and through a 1 mm incision. Aspiration (600 mm Hg) cutting (300 cpm ) was performed to obtain specimens for cytology and histopathology. Results: Di agnostic material was obtained in nine of 10 (90%) cases. Diagnoses included ir is naevus, iris stroma, malignant melanoma, melanocytoma, epithelial inclusion c yst, and sarcoid granuloma. All corneal wounds were self sealing. One patient de veloped a transient postoperative increase in intraocular pressure. Within the f ollow up of this study, no patients suffered intraocular haemorrhage, infection, cataract or vision loss. Conclusion: The Finger iridectomy technique was a mini mally invasive and very effective biopsy technique. Aspiration cutting yielded r elatively large pieces of tissue (and cells) used for cytopathological and histo pathological evaluation. Small incision surgery allowed for rapid rehabilitation and no significant complications.展开更多
文摘To report breakage of a 25 gauge vitreous cutter during vitreous surgery. Int erventional case report. A 60 year old woman was referred for management of an epiretinal membrane at the macula. Visual acuity was 20/100 in the affected lef t eye. Vitreous surgery using a 25 gauge vitrectomy system was carried out with a combination of conventional cataract surgery. The vitreous cutter was lodged within the sclerotomy cannula after peripheral vitrectomy and was pulled togethe r with the cannula. The cannula was reinserted by trocar, but as the floating pe eled epiretinal membrane was dissected with the vitreous cutter, the tip of the cutter was broken and was aspirated with the membrane. Stereoscopic microscopy a nd scanning electron microscopy demonstrated that the edge that had broken at th e cutter port was smooth. Although 25 gauge instruments remain useful, care sho uld be taken against rare surgical complications related to their fragility.
文摘Aims: To develop a minimally invasive, maximally effective method to biopsy an terior segment tumours. Methods: A 25 gauge aspiration cutter (vitrector) was us ed to biopsy anterior segment tumours. The probe was introduced under sodium hya luronate 1%and through a 1 mm incision. Aspiration (600 mm Hg) cutting (300 cpm ) was performed to obtain specimens for cytology and histopathology. Results: Di agnostic material was obtained in nine of 10 (90%) cases. Diagnoses included ir is naevus, iris stroma, malignant melanoma, melanocytoma, epithelial inclusion c yst, and sarcoid granuloma. All corneal wounds were self sealing. One patient de veloped a transient postoperative increase in intraocular pressure. Within the f ollow up of this study, no patients suffered intraocular haemorrhage, infection, cataract or vision loss. Conclusion: The Finger iridectomy technique was a mini mally invasive and very effective biopsy technique. Aspiration cutting yielded r elatively large pieces of tissue (and cells) used for cytopathological and histo pathological evaluation. Small incision surgery allowed for rapid rehabilitation and no significant complications.
