Abstract
BackgroundTo describe one modified method of having machine-independent removal of 5,000 centistokes silicone oil through 23-gauge trocar-cannulas.MethodsConsecutive 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.ResultThere 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.ConclusionThe modified method of using an infusion tube and 23-gauge trocar-cannulas can achieve quick and complete removal of high viscosity silicone oil.Electronic supplementary materialThe online version of this article (doi:10.1186/s12886-015-0103-2) contains supplementary material, which is available to authorized users.
Highlights
To describe one modified method of having machine-independent removal of 5,000 centistokes silicone oil through 23-gauge trocar-cannulas
One of the methods for silicone oil removal is anteriorly through the clear cornea incision by making a posterior capsulotomy in psuedophakic eyes or after cataract extraction [1]
The short plastic tube was an essential part to form a closed system including the vitreous cavity and the syringe, which was available in most ophthalmic institutions and low in cost
Summary
Patients The study included 20 consecutive patients who were scheduled to have silicone oil (Oxane® 5700; Bausch & Lomb, Rochester, NY, US) removal between January 2014 and June 2014 (11 women and 9 men), with an average age of 51.7 years (range from 25 to 64 years). Step 3: Attach the infusion tube to the conjunctiva surface and cover the microcannula to have active silicone oil removal The other end of the tube was firmly attached to the conjunctiva surface, covering the microcannula’s cap inside to form a closed space from the external atmosphere. After the fluidoil surface existed, the surgeon slightly rotated the eyes inferonasally making the microcannula for oil drainage closer to the eye’s apex, residual oil bubbles could be continuously drained into the syringe (Fig. 1c). After these procedures, silicone oil could be almost removed.
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