Nikoloz Labauri MD
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Nikoloz Labauri, MD, demonstrates surgical removal of hard subfoveal exudates in a diabetic patient. He uses peripheral retinotomy and artificial retinal detachment with 20G sutureless system to approach the subfoveal zone.
Posted: 9/14/2012
Nikoloz Labauri MD
Nikoloz Labauri, MD, demonstrates surgical removal of hard subfoveal exudates in a diabetic patient. He uses peripheral retinotomy and artificial retinal detachment with 20G sutureless system to approach the subfoveal zone.
Posted: 9/14/2012
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Clairton De Souza
12 years ago
After a 200º retinotomy and extensive retinal detachment (even though you perform a PRP), why don't you perform a direct exchange of perfluorocarbon liquid to silicone oil ? Otherwise you may have high chances of posterior slippage.
Nikoloz Labauri
12 years ago
That is very good note. The slippage may happen here, but mostly it appears when we are having superior retinotory or GRT instead of inferior one. Temporal retinotomy spreads inferiorly and in most of the cases it allows us to completely drain SRF and dry up the retinotomy edge. As you see here initially I put CTR to stretch the bag and make barrier between posterior chamber and vitreous cavity stronger to avoid SiO migration into AC during direct SiO/PFO exchange, so I always prepare things for this maneuver. In case if I have slippage at the end of complete Fluid / Air exchange I repeat the procedure again and then use direct SiO/PFO exchange. If slippage is not the case I prefer to inject SiO under Air, because I can control the anterior segment much better in the same time. Once again, If Slippage happens this problem can be managed easily, but we have to be much careful of SiO migration in AC, which is the most unwanted complication for any kind of surgery. In case of Superior GRT or retinotomy I always use partial Fluid/ Air exchange up the Edge for GRT and then SiO/Air/PFO exchange. I found it more controlled and safe maneuver to avoid slippage. Thanks a lot for discussion.
Nikoloz Labauri
12 years ago
That is very good note. The slippage may happen here, but mostly it appears when we are having superior retinotory or GRT instead of inferior one. Temporal retinotomy spreads inferiorly and in most of the cases it allows us to completely drain SRF and dry up the retinotomy edge. As you see here initially I put CTR to stretch the bag and make barrier between posterior chamber and vitreous cavity stronger to avoid SiO migration into AC during direct SiO/PFO exchange, so I always prepare things for this maneuver. In case if I have slippage at the end of complete Fluid / Air exchange I repeat the procedure again and then use direct SiO/PFO exchange. If slippage is not the case I prefer to inject SiO under Air, because I can control the anterior segment much better in the same time. Once again, If Slippage happens this problem can be managed easily, but we have to be much careful of SiO migration in AC, which is the most unwanted complication for any kind of surgery. In case of Superior GRT or retinotomy I always use partial Fluid/ Air exchange up the Edge for GRT and then SiO/Air/PFO exchange. I found it more controlled and safe maneuver to avoid slippage. Thanks a lot for discussion.
SHALABH SINHA
12 years ago
27G Chandelier is from???
SHALABH SINHA
12 years ago
27G Chandelier is from???
SHALABH SINHA
12 years ago
27G Chandelier is from???
SHALABH SINHA
12 years ago
27G Chandelier is from???
Nikoloz Labauri
12 years ago
27G Chandelier is from DORC as well. It can be used with Brighstar or if you get connector with Constellation Xenon as well. Currently I use both.
SHALABH SINHA
12 years ago
Which 20G system is this? DORC? 27G is also from DORC or some other company. A disease such as DR is likely to involve the entire retina, and detaching it would be a bad idea, especially with a cutter. There is greater likelihood of tearing the fragile diabetic retina. Also the value of subfoveal exudates removal doesn't appeal to me because already microscopic changes have taken place in the macula and vision is hardly going to improve substantially to warrant such a drastic surgery. Subfoveal membrane removal was done for AMD but was abandoned for want of this very problem, that we may cosmetically make the macula look good, but does it do any benefit to the patient.
SHALABH SINHA
12 years ago
Which 20G system is this? DORC? 27G is also from DORC or some other company. A disease such as DR is likely to involve the entire retina, and detaching it would be a bad idea, especially with a cutter. There is greater likelihood of tearing the fragile diabetic retina. Also the value of subfoveal exudates removal doesn't appeal to me because already microscopic changes have taken place in the macula and vision is hardly going to improve substantially to warrant such a drastic surgery. Subfoveal membrane removal was done for AMD but was abandoned for want of this very problem, that we may cosmetically make the macula look good, but does it do any benefit to the patient.
neeraj pandey
12 years ago
agree with dr. shalabh, is it worth?
aziz çil
12 years ago
Great job Dr. Labauri, is vision gain may be due to cataract removal?
Nikoloz Labauri
12 years ago
Dear Colleagues first of all would like to thank you for your interest and your comments regarding this surgical technique. Instruments used : here I use DORC, 2 step 20G system with valved trocars. Cases like MT, RPE grafts or this one I choose 20 G system because of high fluidic currents and passive aspiration rates, if not take in account some specific instruments which are available only for 20G for such a major surgeries. Technique how to detach retina in this particular cases : 41G subretinal canula connected with VFC system is very good tool to detach the posterior pole and with multiple FGs spread the detachment everywhere as we use it in MT surgery for AMD, but here I do not recommend using 41 Subretinal canula to balloon the posterior pole because it can cause inadvertent tearing the foveal zone or create macular hole (already proved experience during MT surgeries) since in some parts we have strong attachments between RPE and neurosensory retina due to fibroused HA. As you see in video initially I create 2 peripheral retinotomies and then I addressed the macula for membrane peeling with 23G forceps which causes leackage thorugh the port and creates high fluidic currents. In mean while Im removing an epiretinal membrane, RD spreads up to the equator and it is getting ready for large retinotomy. After you perform this latest you give some more minutes and the detachment will reach the macula. Gentle cutter suction can be applied to grasp the retinal edge and elevate without excessive strain step by step. The VA was improved because the foveal zone was freed up from HAs. Here was done clear lens phacoemulsification to shave the vitreous periphery and not the cataract surgery. Predicting the visual prognosis is indeed a difficult job for such patients. IS/OS junctions and ELM has to be assessed by OCT which is not always easy and many speculations will arise during the scan reviewing. FA is mandatory to rule out n existence of macular ischemia. Usually patient needs to be asked when he or she has noted decrease of vision. With these data we can judge whether it is worthy or not to operate this patients. If the process is fresh we can gain some VA due to photoreceptor regeneration, probably by next year we will have enough cases to make some conclusions and present the results in conferences. Thanking you once again for discussion Nikoloz
Grigor Kamushadze
12 years ago
Great job Dr.Nikoloz
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