title: A machine-independent method to have active removal of 5,000 centistokes silicone oil using plastic infusion tube and 23-gauge microcannulas.
abstract: BACKGROUND
  To describe one modified method of having machine-independent removal of 5,000 centistokes silicone oil through 23-gauge trocar-cannulas.
  
  
  METHODS
  Consecutive patients with silicone oil tamponade for more than four months and with complete retinal reattachment were included. Two 23-gauge trocars were used to make sclerotomies while the microcannulas remained in situ for intravitreous infusion and silicone oil drainage. A short section of infusion tube was connected with a 10 ml syringe's needle adapter. The other side was attached to the conjunctiva surface and covered the cannula's cap inside to form a closed space for silicone oil drainage. The main outcomes were duration for complete removal of silicone oil and intra- and postoperative complications.
  
  
  RESULTS
  There were totally twenty cases (20 eyes) included. The mean time for draining out the silicone oil was 4.54 ± 0.78 minutes. Intraoperatively, flute needle was introduced additionally in seven cases to achieve complete removal. No cases experienced postoperative visual acuity deterioration or refractory hypotony. No significant residual oil bubbles were observed. No retinal redetachment occurred throughout the follow-ups.
  
  
  CONCLUSIONS
  The modified method of using an infusion tube and 23-gauge trocar-cannulas can achieve quick and complete removal of high viscosity silicone oil.
authors: State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, 54S Xianlie Road, Guangzhou, 510060, China. zhangzhaotian@126.com.
authors: Zhaotian
authors: Z
authors: Zhang
authors: State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, 54S Xianlie Road, Guangzhou, 510060, China. weiyantao75@126.com.
authors: Yantao
authors: Y
authors: Wei
authors: State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, 54S Xianlie Road, Guangzhou, 510060, China. jiangtong402@163.com.
authors: Xintong
authors: X
authors: Jiang
authors: State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, 54S Xianlie Road, Guangzhou, 510060, China. lucy_qs@163.com.
authors: Suo
authors: S
authors: Qiu
authors: State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, 54S Xianlie Road, Guangzhou, 510060, China. zhshaochong@outlook.com.
authors: Shaochong
authors: S
authors: Zhang
mesh_terms: D000328:Adult; D002404:Catheterization / Q000295:instrumentation*; D004322:Drainage / Q000379:methods*; D058450:Endotamponade; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012163:Retinal Detachment / Q000601:surgery*; D012827:Silicone Oils; D014783:Viscosity; D014792:Visual Acuity; D014821:Vitrectomy / Q000379:methods
chemical_list: D012827:Silicone Oils