scholarly journals Changes of retinal oxygen saturation during treatment of diabetic macular edema with a pre-defined regimen of aflibercept: a prospective study

2021 ◽  
Author(s):  
Somar M. Hasan ◽  
Martin Hammer ◽  
Daniel Meller
Keyword(s):  
Oxygen Saturation ◽  
Macular Edema ◽  
Diabetic Macular Edema ◽  
Retinal Thickness ◽  
Retinal Tissue ◽  
Perfusion Process ◽  
Intravitreal Aflibercept ◽  
Monthly Changes ◽  
A Prospective Study

Abstract Purpose To study the effect of anti-VEGF therapy for diabetic macular edema (DME) on retinal oxygen saturation (O2S) and its correlation with functional and anatomical changes of retinal tissue. Methods An interventional prospective single group study. Included were 10 eyes of 10 patients with visually significant DME which received a fixed regimen of intravitreal aflibercept every 4 weeks for 5 months, followed by 3 injections every 8 weeks, and were controlled monthly. Visual acuity (VA), central retinal thickness (CRT), arterial (aO2S), venous (vO2S) and arterio-venous difference (AVdO2S) retinal oxygen saturation were noted monthly. Changes after 5th (V6) injection and on last follow-up (V12) were studied. Correlations of different parameters were analyzed. Results The aO2S did not change whereas vO2S decreased (62.2 ± 9.4 pre-op to 57.2 ± 10.5 on V6, p = 0.03). This remained unchanged at 59.4 ± 13.2 on V12 (p = 0.2) and was accompanied by an increase of AVdO2S (40.8 ± 8.3 pre-op to 44.8 ± 10.6, p = 0.03 on V6) which was followed by a non-significant decrease to 41.8 ± 11.3 on V12 (p = 0.06). We found no correlation between BCVA and aO2S. However, mild correlation between BCVA and both vO2S and AVdO2S (r = −0.2 p = 0.035 and r = 0.185 p = 0.05 respectively) was found. No correlation was found between CRT and aO2S, vO2S, or AVdO2S. Conclusions During DME treatment with fixed regimen of intravitreal aflibercept over 11 months, we observed a reduction of vO2S and increase of AVdO2S which correlated with BCVA but not CRT. This could be explained by increasing consumption of O2S in the central retina and, possibly, by re-perfusion process.

scholarly journals Comparison of Intravitreal Aflibercept and Ranibizumab following Initial Treatment with Ranibizumab in Persistent Diabetic Macular Edema

2018 ◽  
Vol 2018 ◽  
pp. 1-5 ◽  
Author(s):  
Ali Demircan ◽  
Zeynep Alkin ◽  
Ceren Yesilkaya ◽  
Gokhan Demir ◽  
Burcu Kemer
Keyword(s):  
Macular Edema ◽  
Diabetic Macular Edema ◽  
Medical Records ◽  
Poor Response ◽  
Intravitreal Aflibercept ◽  
The Mean ◽  
Retrospective Comparative Study ◽  
Switch Group ◽  
Persistent Diabetic Macular Edema

Purpose. To compare the visual and anatomic outcomes in patients with persistent diabetic macular edema (DME) who switched from ranibizumab to aflibercept with those who continued with previous ranibizumab therapy. Methods. In this retrospective comparative study, medical records of consecutive patients with center-involved DME ≥ 350 μm who had at least three recent consecutive monthly ranibizumab injections followed by as-needed therapy with either aflibercept or ranibizumab were reviewed. Data were collected at presentation (preinjection), at the intermediary visit, and at the last visit (at the end of the follow-up period). Results. Forty-three eyes of 43 patients were divided into two groups: the switch group (n=20) and the ranibizumab group (n=23). Though no significant improvement was found in the mean BCVA from the intermediary visit to the last visit, there was a difference in the mean CMT in the switch group and the ranibizumab group (p<0.001 and p=0.03, resp.). The mean CMT decreased after the intermediary visit by 188.6 ± 120.5 μm in the switch group and by 60.3 ± 117.1 μm in the ranibizumab group (p=0.003). Conclusions. Both aflibercept and ranibizumab decreased CMT in patients with persistent DME who showed a poor response to ranibizumab injections. However, switching to aflibercept provided only morphologic improvement.

Comparison of aflibercept and ranibizumab in diabetic macular edema associated with subretinal detachment

2019 ◽  
Vol 30 (2) ◽  
pp. 363-369 ◽  
Author(s):  
Abdullah Ozkaya ◽  
Gokhan Demir ◽  
Asli Kirmaci
Keyword(s):  
Visual Acuity ◽  
Retinal Detachment ◽  
Macular Edema ◽  
Diabetic Macular Edema ◽  
Secondary Outcome ◽  
Intravitreal Ranibizumab ◽  
Corrected Visual Acuity ◽  
Intravitreal Aflibercept ◽  
Best Corrected Visual Acuity

Purpose: To compare the efficacy of ranibizumab and aflibercept in the treatment of diabetic macular edema associated with subfoveal retinal detachment. Methods: This is a retrospective, comparative study. The treatment-naïve diabetic macular edema patients who had diabetic macular edema associated with subfoveal retinal detachment and underwent intravitreal aflibercept or intravitreal ranibizumab treatment were included. The patients were treated on a pro re nata treatment regimen after a loading dose of 3-monthly injections and the follow-up time was 12 months. The primary outcome measure of this study was the presence of subfoveal retinal detachment after treatment at different time points. The secondary outcome measures were the change in best corrected visual acuity and central retinal thickness. Results: A total of 46 eyes of 46 patients were included. The aflibercept group consisted of 20 and the ranibizumab group consisted of 26 eyes. During the follow-up period of 12 months, subfoveal retinal detachment was completely resolved in 75% versus 57.7% of the eyes at month 3 (p = 0.2), 90% versus 76.9% at month 6 (p = 0.2), 90% versus 65.4% at month 9 (p = 0.05), and 100% versus 80.8% at month 12 (p = 0.03) in the intravitreal aflibercept versus intravitreal ranibizumab groups. The change in best corrected visual acuity was not statistically different between the groups at months 3, 6, 9, and 12, respectively (p > 0.05 for all). Conclusion: Both intravitreal aflibercept and intravitreal ranibizumab were effective in regards to anatomical and functional outcomes of diabetic macular edema patients associated with subfoveal retinal detachment. Interestingly, intravitreal aflibercept seemed more effective than intravitreal ranibizumab in the resolution of subfoveal retinal detachment at month 12.

Diabetic Macular Edema

1998 ◽  
Vol 8 (3) ◽  
pp. 127-130 ◽  
Author(s):  
J. Cunha-Vaz
Keyword(s):  
Macular Edema ◽  
Diabetic Macular Edema ◽  
Retinal Thickness ◽  
Vasogenic Edema ◽  
Retinal Disease ◽  
Retinal Edema ◽  
Blood Retinal Barrier ◽  
Retinal Tissue ◽  
First Case ◽  
Retinal Thickness Analyser

Retinal edema is defined as any increase of water in retinal tissue resulting in an increase in its volume. This increase may be initially intracellular or extracellular. In the first case, there is cytotoxic edema. In the second, vasogenic edema, directly associated with an alteration of the blood-retinal barrier (BRB). Retinal thickness can now be measured, using the retinal thickness analyser (RTA). Similarly, local breakdown of the BRB can now be mapped using the retinal leakage analyser (RLA). The application of these methods to diabetic macular edema has shown that both types of retinal retinopathy edema occur in the initial stages of diabetic retinal disease. These observations suggest a role for neuroprotective and vasoprotective agents in the management of diabetic retinal disease.

Ranibizumab for Persistent Diabetic Macular Edema after Bevacizumab Treatment

2016 ◽  
Vol 27 (2) ◽  
pp. 210-214 ◽  
Author(s):  
Gabriel Katz ◽  
Elad Moisseiev ◽  
Dafna Goldenberg ◽  
Joseph Moisseiev ◽  
Yosef Lomnicky ◽  
...  
Keyword(s):  
Visual Acuity ◽  
Macular Edema ◽  
Diabetic Macular Edema ◽  
Retinal Thickness ◽  
Significant Gain ◽  
Bevacizumab Treatment ◽  
The Mean ◽  
The Difference ◽  
Persistent Diabetic Macular Edema

Purpose To evaluate the efficacy of switching from bevacizumab to ranibizumab in patients with diabetic macular edema (DME). Methods This was a retrospective study of patients with DME initially treated with bevacizumab and switched to ranibizumab. Visual acuity (VA) and central retinal thickness (CRT) were retrieved at fixed timepoints prior to and after the switch. Results Forty eyes of 32 patients were included in the study. The difference in VA between any of these fixed timepoints was not statistically significant. A significant gain in VA was found in eyes that lost more than 0.1 logMAR during treatment with the last 3 bevacizumab injections. The mean CRT was significantly lower after the first 3 ranibizumab injections and at the final follow-up (p<0.001), a 67 ± 14 μm and 78 ± 18 μm reduction in thickness, respectively. Conclusions Switching to ranibizumab resulted in a significant decrease in the CRT of eyes with DME, and should be considered when there is a lack of response or deterioration while on bevacizumab injections. A significant gain in VA was observed in a subgroup of eyes that lost more than one line while receiving the last 3 bevacizumab injections prior to the switch.

Dexamethasone Intravitreal Implant at the Time of Cataract Surgery in Eyes with Diabetic Macular Edema

2016 ◽  
Vol 27 (4) ◽  
pp. 433-437 ◽  
Author(s):  
Giacomo A. Panozzo ◽  
Elena Gusson ◽  
Giorgio Panozzo ◽  
Giulia Dalla Mura
Keyword(s):  
Macular Edema ◽  
Diabetic Macular Edema ◽  
Foveal Thickness ◽  
Dexamethasone Intravitreal Implant ◽  
Positive Effects ◽  
Intravitreal Implant ◽  
A Prospective Study

Purpose To determine the potential role of intraoperative dexamethasone intravitreal implant (DEX-I) in reducing diabetic macular edema (DME) worsening after phacoemulsification. Methods This was a prospective study on 19 eyes of 19 patients with type 2 diabetes mellitus with DME and cataract. Mean preoperative Early Treatment Diabetic Retinopathy Study visual acuity (VA) was 16.7 letters. Mean foveal thickness (FT) was 451 μm. The DME was naive in 11 eyes and refractory in 8 eyes. All eyes underwent a standard phacoemulsification and intraocular lens implantation; DEX-I was injected at the end of surgery. Follow-up was performed at 1 week and then monthly until DME recurrence (up to 8 months). Results At 1 week, mean VA improved by 15 letters (range 0-29 letters) and mean FT decreased by 147 μm (range 69-236 μm). Improvement consolidated at month 1, with a mean VA improvement of 18 letters (range 3-32 letters) and a mean improvement in FT of 193 μm (range 76-304 μm), remaining stable at month 2 after surgery in all eyes. The DME recurred in 1 eye at month 3, in 14 eyes (73.8%) between months 4 and 5, and after month 6 in 4 eyes (21%). Refractory DMEs demonstrated the same benefit but recurred earlier than naive ones (4 months versus 5.8 months, p<0.01). Conclusions Intraoperative DEX-I prevents DME worsening after phacoemulsification. Its positive effects last for at least 3 months.

scholarly journals Comparison of outcomes between intravitreal ranibizumab and intravitreal aflibercept for diabetic macular edema with “Treat-and-Extend” regimen

2020 ◽  
Author(s):  
Masahiko Sugimoto ◽  
Shinichiro Chujo ◽  
Taku Sasaki ◽  
Atsushi Ichio ◽  
Ryohei Miyata ◽  
...  
Keyword(s):  
Macular Edema ◽  
Diabetic Macular Edema ◽  
Retinal Thickness ◽  
Intravitreal Ranibizumab ◽  
Treat And Extend ◽  
Corrected Visual Acuity ◽  
Anti Vegf ◽  
Intravitreal Aflibercept ◽  
Treatment Naïve ◽  
Treat And Extend Regimen

Abstract Background To compare the effectiveness of intravitreal ranibizumab (IVR) and intravitreal aflibercept (IVA) performed with the Treat-and-Extend (TAE) regimen on eyes with diabetic macular edema (DME).Patients and methods This was a retrospective study of 125 eyes of 125 treatment naïve DME patients who received anti-VEGF injections at 3 consecutive monthly intervals as the loading phase. Of these 125 eyes, 26 eyes completed the treatment with the TAE regimen for at least 24 months. Among the 26 eyes, 13 eyes of 13 patients (mean age, 70.9±6.0 years) received intravitreal injections of 0.5 mg ranibizumab and 13 eyes of 13 patients (65.9±8.6 years) received 2 mg aflibercept. The changes in the best-corrected visual acuity (BCVA), central retinal thickness (CRT), diabetic retinopathy severity (DRS), and total injection numbers were compared between the two anti-VEGF agents.Results No significant differences were detected in the baseline demographics. At 24 months, the BCVA was significantly improved in both groups; from 0.31±0.19 to 0.10±0.12 logMAR units for IVR and 0.41±0.19 to 0.16±0.28 logMAR units for IVA ( P=1.29x10 -9 ). The CRT was significantly reduced in both groups; 440.9±69.3 to 307.5±66.4 μm for IVR and 473.9±71.5 to 317.8±71.2 μm for IVA ( P=3.55x10 -9 ). No significant differences were detected in the improvements of the BCVA and the CRT in both groups, and the total injection numbers were significant fewer for the IVA group (11.0±1.2) than the IVR group (12.0±1.0). The DRS was significantly improved in both groups ( P =0.0004 for IVR and P =0.009 for IVA).Conclusion No significant differences were detected in the improvements of the BCVA or CRT and injection numbers between IVR and IVA groups treated with the TAE regimen. These results indicate that the results of the treatment with both agents with the TAE regimen were equally effective.

Minimally Invasive Microincision Vitrectomy Surgery with an Intraoperative Dexamethasone Implant for Refractory Diabetic Macular Edema

2016 ◽  
Vol 235 (3) ◽  
pp. 150-156 ◽  
Author(s):  
Dong Hoon Lee ◽  
Yoon Jeon Kim ◽  
Young Hee Yoon
Keyword(s):  
Macular Edema ◽  
Diabetic Macular Edema ◽  
Retinal Thickness ◽  
Safe Alternative ◽  
Corrected Visual Acuity ◽  
Refractory Diabetic Macular Edema ◽  
History Of ◽  
Microincision Vitrectomy Surgery ◽  
Vitrectomy Surgery

Purpose: To evaluate the 1-year results of 25-gauge microincision vitrectomy surgery (MIVS25) combined with intraoperative dexamethasone (DEX) implant for persistent diabetic macular edema (DME). Methods: This study enrolled patients who had a history of DME for ≥12 months and underwent MIVS25 and DEX implant injection. Best corrected visual acuity (BCVA) and central retinal thickness (CRT) were assessed postoperatively. Results: Eighteen eyes were included in the analysis. Preoperatively, logMAR BCVA was 0.90 and CRT was 594 µm on average. CRT decreased until the 3-month follow-up visit and tended to increase at 6 months, but stabilized at 12 months with additional treatments in five eyes at 5 months postoperatively. Statistically significant improvement in BCVA was noted 1 month after treatment and at each subsequent follow-up visit (p < 0.001). Conclusion: MIVS25 combined with DEX implant injection might be utilized as an effective and safe alternative treatment for intractable DME.

scholarly journals Switch to Aflibercept in Diabetic Macular Edema Patients Unresponsive to Previous Anti-VEGF Therapy

2017 ◽  
Vol 2017 ◽  
pp. 1-4 ◽  
Author(s):  
Filipe Mira ◽  
Manuel Paulo ◽  
Filipe Henriques ◽  
João Figueira
Keyword(s):  
Visual Acuity ◽  
Macular Edema ◽  
Diabetic Macular Edema ◽  
Retrospective Review ◽  
Retinal Thickness ◽  
Central Retinal Thickness ◽  
Functional Improvement ◽  
Anti Vegf ◽  
The Mean

Purpose. The aim was to evaluate the efficacy of aflibercept in patients with diabetic macular edema (DME) unresponsive to prior anti-VEGF therapy. Methods. Retrospective review of DME unresponsive to previous anti-VEGF switched to aflibercept with 3 months of follow-up. Changes in best correct visual acuity (BCVA), central retinal thickness (CRT), and frequency of injections were analyzed. The percentage of subjects who had ≥20/40 (logMAR equivalent 0.3) and ≤20/200 (logMAR equivalent 1) was evaluated. Results. A total of 32 eyes from 26 patients were included. Mean age was 65 ± 10 years old. The mean number of previous anti-VEGF injections was 5.34 ± 2.38, and the mean number of aflibercept injections at the end of the study was 2.00 ± 0.00. The CRT at baseline was 501.47 ± 150.51 μm and 367.97 ± 124.61 μm at 3 months of follow-up (P<0.001). The logMAR BCVA at baseline was 0.71 ± 0.36 and 0.65 ± 0.33 at the end of the follow-up (P=0.037). At baseline, 12.5% of patients had ≥20/40 compared with 25% at the end of follow-up. At baseline, 28.13% of patients had 20/200 or inferior vision compared with 15.63% at the end of the follow-up. Conclusions. DME patients unresponsive to previous multiple ranibizumab injections demonstrate a significant anatomical and functional improvement with the switch to aflibercept.

scholarly journals Első tapasztalataink diabeteses maculopathia Navilas® 577s mikropulzuslézer-készülékkel történő kezelésével

2020 ◽  
Vol 161 (49) ◽  
pp. 2078-2085
Author(s):  
Mónika Ecsedy ◽  
Illés Kovács ◽  
Róbert Gergely ◽  
Katalin Gombos ◽  
Judit Meisel ◽  
...  
Keyword(s):  
Visual Acuity ◽  
Macular Edema ◽  
Diabetic Macular Edema ◽  
Retinal Thickness ◽  
Primary Treatment ◽  
Fundus Photography ◽  
Thickness Change ◽  
Anti Vegf ◽  
Number Of Injections

Összefoglaló. Bevezetés és célkitűzés: A Navilas® 577s mikropulzuslézerrel végzett kezelés biztonságosságának és hatásosságának vizsgálata diabeteses maculaoedemában. Módszer: Retrospektív vizsgálatunkba diabeteses maculaoedema miatt gondozott és legalább 6 hónapos utánkövetéssel rendelkező, korábban Navilas® 577s mikropulzuslézer-kezelésen átesett 28 beteg 46 szemét válogattuk be. Minden szemen optikaikoherencia-tomográfia (OCT) vastagsági térkép navigált, nonkontakt, küszöb alatti mikropulzuslézer-kezelés történt egy alkalommal. A kezelést megelőzően és az azt követő 6. hónapban rögzítettük a látóélesség, a centrális retinavastagság értékeit és az éreredetű endothelialis növekedési faktort (VEGF) gátló injekciók számát. A követési idő végén megvizsgáltuk a szemfenéki képnek a digitális fundusfotográfia és az átmetszeti OCT-képek segítségével észlelhető változásait. Eredmények: A vizsgált szemek közül 30 esetben a lézerkezelést korábbi centrális maculaoedema miatt VEGF-gátló injekciós kezelés előzte meg, míg 16 szem esetében primer lézerkezelés történt. A Navilas® 577s mikropulzuslézer-kezelést követően 6 hónappal sem a látóélesség, sem a centrális maculavastagság nem változott szignifikánsan egyik csoportban sem (p>0,05). Ugyanakkor a korábban injekciós kezelésben részesült szemek esetében a lézerkezelést megelőző 6 hónapban adott injekciók száma az átlagos 2,63 ± 1,18 értékről átlagosan 0,5 ± 0,73 értékre csökkent (p<0,001). A fundusfotókon és az átmetszeti OCT-scaneken a lézerkezelést követően egyetlen szem esetében sem találtunk látható pigmentelváltozásokat vagy hegesedést. Következetetés: Megfigyeléseink szerint a Navilas® 577s mikropulzuslézer-kezelés biztonságos a diabeteses maculaoedemás betegek kezelésében, továbbá a VEGF-gátlóval kezelt szemeken szerepet játszhat az injekciók számának csökkentésében. Orv Hetil. 2020; 161(49): 2078–2085. Summary. Introduction and objective: To assess the safety and efficacy of Navilas® 577s micropulse subthreshold laser in the treatment of non-center involved diabetic macular edema. Method: In this retrospective study, we included 46 eyes of 28 patients with diabetic macular edema, who were treated at least 6 months ago with Navilas® 577s micropulse laser. Laser treatment was navigated by optical coherence tomography (OCT) macular thickness map in subthreshold micropulse mode at one occasion. Data from visual acuity testing, retinal thickness, and the number of anti-vascular endothelial growth factor (VEGF) injections needed 6 months before and after treatment were registered. At the end of the follow-up, digital fundus photography and OCT radial scans were performed to evaluate any possible anatomical changes. Results: 30 eyes had previous anti-VEGF treatment for central macular edema, and in 16 eyes we performed the laser as primary treatment. At the end of the follow-up, no significant visual acuity or central retinal thickness change were observed (p>0.05). On the other hand, in the anti-VEGF pretreated group the number of injections decreased significantly from 2.63 ± 1.18 to 0.5 ± 0.73 (p<0.001). We did not find any pigmentary changes or visible signs of scaring on final fundus photography pictures or OCT radial scans. Conclusion: Navilas® 577s subthreshold microsecond laser proved to be a safe option in the treatment of diabetic macular edema. It can be very useful in anti-VEGF treated eyes by decreasing the number of injections needed. Orv Hetil. 2020; 161(49): 2078–2085.

scholarly journals A Prospective Study of Safety Profile and Efficacy of three doses of Intravitreal Bevacizumab in Diabetic Macular Edema

2021 ◽  
Vol 4 (2) ◽  
pp. 127
Author(s):  
Nasrin Y ◽  
Sharma Ajay ◽  
Sharmila Yalakala
Keyword(s):  
Visual Acuity ◽  
Macular Edema ◽  
Diabetic Macular Edema ◽  
Therapeutic Agent ◽  
Intravitreal Bevacizumab ◽  
Systemic Complications ◽  
Systemic Side Effects ◽  
The Mean ◽  
A Prospective Study

Introduction: Current study aimed to evaluate efficacy of intravitreal Bevacizumab in Diabetic macular edema, and to identify their ocular and systemic complications if any. Method: It is a prospective, interventional study with 68 patients in 82 eyes with Diabetic macular edema. All treated by 3 injection of intravitreal bevacizumab with 1 month interval. Visual acuity, macular edema, and complications evaluated at every month upto 6th months. Ranibizumab was offered if the patient is a non-respondent to Bevacizumab. Results: Majority age group of 61-70 years with a mean age of 59 ± 6.72 years. The mean duration of diabetes was 11.68 ± 7.2 years. The mean baseline BCVA and CRT are 0.64 ± 0.28 Log MAR units and 436.99 ± 135.10 μm. After 3 injections, BCVA values are 0.48±0.27 (p< 0.01)), 0.36±0.24 (p<0.01)), and 0.27±0.24 (p<0.01), 0.23±0.27 Log MAR (p<0.01)) at 1month, 2 months, and 3 months, and 6 months follow-up respectively. CMT levels are 315.79±124.60 μ at 1 month, after 3rd IVA and this significant change (p<0.01) followed with subsequent follow-up with mean CRT of 296.04±122.97 μ (p< 0.01) at 6th month. The BCVA improved ≥ 2 Snellen lines in 69.5% and 78% cases, resolution of CMT in 56% and 69.5% cases at 3 months and 6 months respectively. At the end of the 3rd month, 46 eyes macular edema completely resolved with 3 injections of IVA, 23 eyes persistent macular edema present, 13 eyes refractory to bevacizumab injections. Persistent & Refractory macular edema eyes (36) switched to Ranibizumab injections.In persistent macular edema, significant resolution (p≤0.01) of macular thickness (370.52 ± 71.43 µm vs. 341.08 ± 122.75 µm) without (p=0.09) improvement in visual acuity (0.45 ± 0.20 vs. 0.34 ± 0.23) was observed post Ranibizumab injections.  In Refractory macular edema, thickness of cases no significant (497.76 ± 161.07µm vs 407.84 ± 169.64 µm) improvement seen after Ranibizumab injections(p=0.1). Recurrence of macular edema seen in 10.9%. Subconjunctival haemorrhage seen in 10.9%-12.1% cases, raised IOP in 2.4%-3.6% cases at post injection day 1. No other ocular and systemic complications were observed during follow-up. Conclusions: Intravitreal bevacizumab is effective in treatment of diabetic macular edema but therapeutic effect is temporary and repeat treatment is needed. It does not show any potential drug related ocular and systemic side effects, hence it is safe and economical therapeutic agent

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