A modified approach to actively remove high viscosity silicone oil through 23-gauge cannula.
OBJECTIVE
To report a simple approach to actively remove high viscosity silicone oil through a 23-gauge cannula via pars plana.


METHODS
Forty-eight eyes of 48 patients underwent silicone oil (5700 centistokes) removal (SOR) were enrolled. A section of blood transfusion set was prepared to connect a standard 23-gauge cannula and vitrectomy machine. Silicone oil was removed with suction of 500-mm Hg vacuum through the cannula. Main outcome measures were SOR duration, number of sutured sites, intraocular pressure (IOP), best-corrected visual acuity (BCVA), and complications.


RESULTS
Silicone oil was successfully removed in all cases. The mean SOR time was 5.70±0.85min. Nine eyes (18.75%) needed suture partial sclerotomies. No intraoperative complications were noted. Transient hypotony (≤8 mm Hg) was seen in 3 eyes (6.25%) on postoperative day 1, but all resolved within 1wk. Retinal reattachment was achieved in all cases and no other postoperative complications were noted during 3-month following-up. BCVA at the final visit improved or stabilized in all patients comparing to the preoperative level.


CONCLUSIONS
Active removal of high viscosity silicone oil through a 23-gauge instrument cannula jointed with blood transfusion set is a practical and reliable technique when considering two sides of efficacy and safety.
Eye Hospital, Wenzhou Medical University, Wenzhou 325027, Zhejiang Province, China.
Zong-Ming
ZM
Song
Eye Hospital, Wenzhou Medical University, Wenzhou 325027, Zhejiang Province, China.
Xu-Ting
XT
Hu
Eye Hospital, Wenzhou Medical University, Wenzhou 325027, Zhejiang Province, China.
Lei
L
Wang
Eye Hospital, Wenzhou Medical University, Wenzhou 325027, Zhejiang Province, China.
Zhi-Xiang
ZX
Hu
Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China.
Pei-Quan
PQ
Zhao
Eye Hospital, Wenzhou Medical University, Wenzhou 325027, Zhejiang Province, China.
Ding
D
Chen
23-gauge; active removal; pars plana; silicone oil
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