scholarly journals Comparison of the Effect of Trabeculectomy in Controlling Intraocular Pressure in Pseudo-Exfoliaiton and Primary Open Angle Glaucoma Patients

2019 ◽  
pp. 1-7
Author(s):  
S. Kavuncu ◽  
H. H. Erbil
Keyword(s):  
Visual Acuity ◽  
Intraocular Pressure ◽  
Primary Open Angle Glaucoma ◽  
Open Angle Glaucoma ◽  
Study Groups ◽  
First Year ◽  
Open Angle ◽  
Significant Difference ◽  
The Mean

Objective: The aim of this study is to compare the efficacy of the trabeculectomy in controlling intraocular pressure in patients with primary open-angle and pseudo-exfoliation glaucoma. Materials and Methods: The medical data of a sum of 69 eyes of which 36 (52,2%) with primary open angle glaucoma (POAG) and 33 (47,8%) with pseudo-exfoliation (PEG), who have medically uncontrolled glaucoma and had undergone primary trabeculectomy in Göztepe Education and Research Hospital were evaluated in this retrospective study. Postoperatively, data at the first day, at the first month, and at the last examination evaluated in the study. Success of the surgery is defined as measurement of intraocular pressure under 21 mmHg with (incomplete success) or without (complete success) additional medications following the end of the first year follow-up examinations. Results: POAG group consists of 36 patients of which 16 male, 20 female and PEG group consists of 33 patients of which 21 male and 12 female. The mean age was 67.2±9.1 (42-80) years in POAG group and 70.7±6.6 (55-80) years in PEG group. There was no statistically significant difference between POAG and PEG groups in visual acuity, mean intraocular pressure, c/d ratio and the number of antiglaucomatous medications preoperatively and postoperatively (p>0.05). There was a statistically significant difference in groups between post and preoperative values in visual acuity, mean intraocular pressure, c/d ratio and the number of antiglaucomatous medications (p<0.05) Success of the trabeculectomy was 41,7% (complete success), 41,7% (incomplete success) and remaining 16,6% was unsuccessful, in POAG group and success rate in PEG group was 51.5%, 27,3% and 21,2% respectively. There was no statistically significant difference between groups (p=0.738). Conclusion: Trabeculectomy is an effective surgery in lowering intraocular pressure in both of the study groups equally.

Outcomes of micropulse transscleral cyclophotocoagulation in primary open-angle glaucoma, pseudoexfoliation glaucoma, and secondary glaucoma

2020 ◽  
pp. 112067212091423 ◽  
Author(s):  
Oya Tekeli ◽  
Helin Ceren Köse
Keyword(s):  
Intraocular Pressure ◽  
Primary Open Angle Glaucoma ◽  
Open Angle Glaucoma ◽  
Secondary Glaucoma ◽  
Open Angle ◽  
Pseudoexfoliation Glaucoma ◽  
Transscleral Cyclophotocoagulation ◽  
The Mean ◽  
Glaucoma Group

Purpose: The aim of this study is to compare the outcomes of micropulse transscleral cyclophotocoagulation between primary open-angle glaucoma, pseudoexfoliation glaucoma, and other types of secondary glaucoma. Methods: Outcomes of 96 consecutive patients with refractory, end-stage glaucoma treated with micropulse transscleral cyclophotocoagulation were retrospectively reviewed. Follow-up examinations were performed on a regular basis until 12 months postoperatively. Surgical successes were defined as maintaining intraocular pressure ⩽18 mmHg and ⩾20% reduction in intraocular pressure (criteria A), ⩽15 mmHg intraocular pressure and ⩾25% reduction in intraocular pressure (criteria B), and ⩽12 mmHg intraocular pressure and ⩾30% reduction in intraocular pressure from baseline (criteria C). Results: Ninety-six eyes of 96 patients (50 (52%) females, 46 (48%) males) were included. Among all eyes, 32 were primary open-angle glaucoma, 30 were pseudoexfoliation glaucoma, and 34 were other types of secondary glaucoma. The mean age was 59.37 ± 11.45 (range: 20–91) years. The mean follow-up period was 14.2 ± 3.9 (range: 12–16) months. At 12 months, the success rates of primary open-angle glaucoma, pseudoexfoliation glaucoma, and secondary glaucoma group were 68.75%, 66.6%, and 64.7% (p = 0.185) for criteria A; 56.25%, 53.3%, and 50% (p = 0.153) for criteria B; and 43.75%, 43.3%, and 38.2% (p = 0.146) for criteria C. Four patients (12.5%) in primary open-angle glaucoma group, 5 patients (16.6%) in pseudoexfoliation glaucoma group, and 14 (41.2%) patients in other secondary glaucoma group required reoperation during the follow-up (p < 0.05). Conclusion: Micropulse transscleral cyclophotocoagulation is an equally effective method of lowering intraocular pressure in patients with primary open-angle glaucoma, pseudoexfoliation glaucoma, and other types of secondary glaucoma. The rate of reoperation was higher in refractory secondary glaucoma patients.

scholarly journals Comparison of the efficacy and safety of bimatoprost (0.03 %) and travoprost (0.004 %) in patients with primary open angle glaucoma

2013 ◽  
Vol 5 (1) ◽  
pp. 75-80 ◽  
Author(s):  
Ashish Chander ◽  
H Kapoor ◽  
S Thomas
Keyword(s):  
Intraocular Pressure ◽  
Side Effect ◽  
Primary Open Angle Glaucoma ◽  
Open Angle Glaucoma ◽  
Open Angle ◽  
Efficacy And Safety ◽  
Once Daily ◽  
The Mean ◽  
To Receive

Purpose: To compare the efficacy and safety of bimatoprost (0.03 %) and travoprost (0.004 %) in patients with primary open angle glaucoma (POAG). Subjects and methods: Patients with POAG were randomized to receive either bimatoprost or travoprost once daily. Detailed ocular examination was done and intraocular pressure (IOP) was measured at 9.00 am, 1.00 pm and 4.00 pm at the baseline and at 1, 2, 4, 6 and 12 weeks of therapy. Results: A total of 31 patients were analysed. The patients were randomly divided into two groups (Bimatoprost group = 16; Travoprost group = 15). Both the groups had a statistically significant reduction from the baseline IOP at all follow up visits at 9.00 am, 1.00 pm and 4.00 pm. The mean IOP decreased from a baseline of 25 ± 2.32 mm Hg to 15.93 ± 1.79 mm Hg after 12 weeks in the bimatoprost group (p < 0.001), and from 24.2 ± 1.60 mm Hg to 16.53 ± 1.56 mm Hg in the travoprost group (p < 0.001). A better mean reduction of IOP was obtained with bimatoprost than with travoprost at the end of the study at 12 weeks (p = 0.03). Mild ocular redness was the commonest side effect in both the groups but was not significant in either group. Conclusion: Both drugs lowered IOP effectively but bimatoprost showed a greater reduction in the mean IOP than did travoprost at 12 weeks and both are safe for ocular use. Nepal J Ophthalmol 2013; 5(9):75-80 DOI: http://dx.doi.org/10.3126/nepjoph.v5i1.7831

scholarly journals CO2 Laser-Assisted Deep Sclerectomy Surgery Compared with Trabeculectomy in Primary Open-Angle Glaucoma: Two-Year Results

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Hengli Zhang ◽  
Yizhen Tang ◽  
Xiaowei Yan ◽  
Lihua Ma ◽  
Yulei Geng ◽  
...  
Keyword(s):  
Intraocular Pressure ◽  
Co2 Laser ◽  
Primary Open Angle Glaucoma ◽  
Open Angle Glaucoma ◽  
Thin Wall ◽  
Deep Sclerectomy ◽  
Open Angle ◽  
Success Rates ◽  
Significant Difference

Purpose. To compare the effectiveness and safety of carbon dioxide (CO2) laser-assisted deep sclerectomy surgery (CLASS) and trabeculectomy (Trab) for treatment of primary open-angle glaucoma (POAG). Methods. In this retrospective and comparative study, 77 eyes of 62 patients with POAG were studied and divided into the CLASS and Trab groups. The best-corrected visual acuity (BCVA), intraocular pressure (IOP), number of medications, surgical success rate, and complications were analyzed. Results. The mean follow-up periods were 27.89 ± 2.94 months and 26.11 ± 2.06 months in the CLASS and Trab groups, respectively. 30 eyes (24 patients) underwent CLASS and 47 eyes (38 patients) underwent Trab. The BCVA in the CLASS and Trab groups was recovered to baseline at postoperative 1 week and 1 month, respectively. At last follow-up visits, a remarkable reduction in the IOP and number of medications was observed in both groups, and no significant difference was found in those between the two groups. The complete success rates were 51.7% and 47.7% in postoperative 24 months in the CLASS and Trab groups, respectively ( P > 0.05 ). There were higher rates of delayed anterior chamber formation (21.3%) and thin-wall filtrating blebs (10.6%) in the Trab group. Meanwhile, the peripheral anterior synechiae were only observed in the CLASS group, and the ratio was 30%. Conclusions. CLASS is an effective and safe treatment modality for POAG, with fewer filtering bleb-related complications and quicker visual recovery in the early postoperative stage than trabeculectomy. The efficacy of lowering intraocular pressure was similar for both procedures.

Color Doppler Imaging Study in Patients with Primary Open-Angle Glaucoma Treated with Timolol 0.5% and Carteolol 2%

2001 ◽  
Vol 11 (3) ◽  
pp. 240-244 ◽  
Author(s):  
P. Montanari ◽  
P. Marangoni ◽  
A. Oldani ◽  
R. Ratiglia ◽  
M. Raiteri ◽  
...  
Keyword(s):  
Intraocular Pressure ◽  
Primary Open Angle Glaucoma ◽  
Open Angle Glaucoma ◽  
Color Doppler ◽  
Resistance Index ◽  
Color Doppler Imaging ◽  
Doppler Imaging ◽  
Open Angle ◽  
Significant Difference ◽  
The Mean

Purpose To evaluate with color Doppler imaging (CDI), in patients with primary open-angle glaucoma (PDAG), the possible influence on ocular hemodynamics of a beta-blocking agent with intrinsic sympathomimetic acitivity (carteolol 2%) compared to a beta-blocker agent without this activity. Methods A study was carried out on 20 patients, with bilateral POaG, intraocular pressure (IOP) ≤ 20 mmHg, all treated twice a day with timolol maleate 0.5% ophthalmic solution. The visual field was evaluated (Octopus 2000 perimeter, G1 program) examining the mean sensitivity (MS) and the mean defect (MD). CDI was carried out to evaluate the resistance index of the internal carotid artery (ICA), the ophthalmic artery (OA), the central retinal artery (CRA), and the short posterior ciliary arteries (SPCA). After these examinations, the therapy was changed to carteolol 2% twice a day. After six months of treatment the examinations were repeated. The data were analysed statistically using Student's t test. Results The mean intraocular pressure during treatment with timolol 0.5% was 16.7 ± 1.67 mmHg and 16.33 ± 1.72 mmHg after treatment with carteolol 2%, the difference not being significant (p=0.494). After six months of treatment with carteolol 2% the MS increased significantly from 22.4 ± 2.5 dB to 24.1 ± 1.8 dB (p=0.018), and the mean defect (MD) fell from 5.3 ± 0.8 dB to 4.7 ± 0.6 dB (p=0.011). There was no significant difference in the resistance index of the CA, the OA and the CRA with the two treatments, whereas the resistance index of the SPCA dropped significantly, from 0.80 ± 0.05 to 0.77 ± 0.02 (p = 0.017). Conclusions CDI did not show significant differences in the resistance indexes of the internal CA, the OA, and the CRA after treatment with carteolol 2% but the resistance index of the SPCA was significantly reduced. Carteolol 2% induced significant changes in the perimetric indexes examined, with an increase in MS and a decrease in MD. These findings suggest that the intrinsic sympathomimetic activity of carteolol may reduce peripheral vascular resistance of the SCA, thus improving perfusion of the optic nerve head, with a protective effect on visual function.

scholarly journals Biodegradable 3D-Porous Collagen Matrix (Ologen) Compared with Mitomycin C for Treatment of Primary Open-Angle Glaucoma: Results at 5 Years

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Fei Yuan ◽  
Lei Li ◽  
Xiuping Chen ◽  
Xiang Yan ◽  
Liyang Wang
Keyword(s):  
Intraocular Pressure ◽  
Mitomycin C ◽  
Primary Open Angle Glaucoma ◽  
Open Angle Glaucoma ◽  
Collagen Matrix ◽  
Open Angle ◽  
Significant Difference ◽  
The Difference ◽  
Rate Of Success

Purpose. To evaluate the effectiveness and safety of the Ologen as an aid for trabeculectomy performed for primary open-angle glaucoma compared with mitomycin C.Methods. In this prospective, randomized, parallel assignment, comparative study, 31 eyes of 21 primary open-angle glaucoma patients were allocated for trabeculectomy with the Ologen implant; another 32 eyes of 23 patients were treated with trabeculectomy augmented with mitomycin C. The patients were followed up for 5 years and evaluated for intraocular pressure, rate of success, status of the bleb, and adverse events.Result. The mean postoperative intraocular pressure was statistically different at 3 m, 6 m, 1 y, 3 y, and 5 y follow-up. The rates of both complete successP=0.017and overall successP=0.031in the Ologen group were significantly higher than those in the mitomycin C group. The difference of the bleb extent and vascularity was statistically significant in both groups. There was no significant difference in postoperative complication.Conclusions. Ologen provides higher rates of surgical success compared with mitomycin C for patients with primary open-angle glaucoma undergoing trabeculectomy. It may be a new, safe, simple, and effective therapeutic approach for treating primary open-angle glaucoma.

Comparative study of the efficacy of selective laser trabeculoplasty as initial or adjunctive treatment for primary open-angle glaucoma

2018 ◽  
Vol 29 (5) ◽  
pp. 524-531 ◽  
Author(s):  
Tomaž Gračner
Keyword(s):  
Intraocular Pressure ◽  
Standard Deviation ◽  
Primary Open Angle Glaucoma ◽  
Open Angle Glaucoma ◽  
Adjunctive Treatment ◽  
Open Angle ◽  
Selective Laser Trabeculoplasty ◽  
Laser Trabeculoplasty ◽  
The Mean

Aim: The aim of this study is to compare the efficacy of selective laser trabeculoplasty as initial or adjunctive treatment for primary open-angle glaucoma in a retrospective chart review. Methods: 28 eyes of 28 patients with newly diagnosed primary open-angle glaucoma, who formed the initial selective laser trabeculoplasty group, and 31 eyes of 31 patients suffering from medical uncontrolled primary open-angle glaucoma, who formed the adjunctive selective laser trabeculoplasty group, were treated with 180° selective laser trabeculoplasty. Patients were evaluated 1, 3, 6, 12, 18 and 24 months after treatment. Success was defined as an intraocular pressure lowering exceeding 20% of pretreatment intraocular pressure. Results: The mean follow-up time was 20.25 months (standard deviation = 8.1) for the initial selective laser trabeculoplasty group and 18.87 months (standard deviation = 8.8) for the adjunctive selective laser trabeculoplasty group (p = 0.538). No significant difference was found between the two groups for mean pretreatment intraocular pressure (21.43 mmHg (standard deviation = 3.2) vs 21.97 mmHg (standard deviation = 2.6); p = 0.766), for mean intraocular pressures and mean intraocular pressure reductions during whole follow-up period. At all follow-up visits, the mean percent intraocular pressure reduction was smaller in the adjunctive selective laser trabeculoplasty group than in the initial selective laser trabeculoplasty group, and such a difference was significant at 1 month (21.55% vs 26.79%; p = 0.039) and 24 months (24.82% vs 28.10%; p = 0.041). According to the Kaplan–Meier survival analysis, the 24-month success rate was 71.4% in the initial selective laser trabeculoplasty group and 71% in the adjunctive selective laser trabeculoplasty group, with no differences between the groups (p = 0.913). Conclusion: Selective laser trabeculoplasty is equally efficient in reducing intraocular pressure as initial or adjunctive treatment for primary open-angle glaucoma over 24 months.

scholarly journals Twenty-Four-Hour Variation of Intraocular Pressure in Primary Open-Angle Glaucoma Treated with Triple Eye Drops

2017 ◽  
Vol 2017 ◽  
pp. 1-6 ◽  
Author(s):  
Yoshinori Itoh ◽  
Kenji Nakamoto ◽  
Hiroshi Horiguchi ◽  
Shumpei Ogawa ◽  
Takahiko Noro ◽  
...  
Keyword(s):  
Intraocular Pressure ◽  
Carbonic Anhydrase ◽  
Triple Therapy ◽  
Primary Open Angle Glaucoma ◽  
Open Angle Glaucoma ◽  
Eye Drops ◽  
Spherical Equivalent ◽  
Open Angle ◽  
Significant Difference ◽  
The Mean

Objectives. To evaluate 24-hour intraocular pressure (IOP) variation in patients with primary open-angle glaucoma (POAG) treated with triple eye drops. Subjects and Methods. The IOP was measured in 74 eyes in 74 POAG patients (seated) on triple therapy (PG analogue, β-blocker, carbonic anhydrase inhibitor) at about every 3 hours. Results. The peak IOP was 13.5 ± 3.1 at 1:00, and the trough IOP was at 12.6 ± 2.4 mmHg at 7:00. The IOP at 7:00 was significantly lower than that at 10:00, 1:00, and 3:00 (p<0.05). Based on the time of the peak IOP, we classified the patients into two groups: diurnal (28 eyes) and nocturnal types (37 eyes). There was significant difference at the spherical equivalent between diurnal and nocturnal types (p=0.014). To assess the influence of reflective error, we conducted subanalysis for two groups: high myopic (26 eyes, ≤−6D) and low/nonmyopic (24 eyes, ≥−2D) groups. In the low/nonmyopia group, the IOP was significantly higher at 1:00 and 3:00 than at 13:00, 16:00, and 7: 00 (p<0.05). Conclusion. The mean of IOP elevated outside of clinic hour in the POAG patients on triple therapy. The low/nonmyopia patient should be carefully treated because the IOP of the patients at night elevated significantly.

scholarly journals Long-term medication reduction in controlled glaucoma with iTrack ab-interno canaloplasty as a standalone procedure and combined with cataract surgery

2021 ◽  
Vol 13 ◽  
pp. 251584142110457
Author(s):  
Mahmoud A. Khaimi
Keyword(s):  
Intraocular Pressure ◽  
Cataract Surgery ◽  
Primary Open Angle Glaucoma ◽  
Open Angle Glaucoma ◽  
Target Range ◽  
Open Angle ◽  
Significant Difference ◽  
The Mean ◽  
Ab Interno

Purpose: To evaluate the long-term effectiveness of iTrack (Nova Eye Medical, Fremont, USA) ab-interno canaloplasty performed as a standalone procedure, or combined with cataract surgery, in reducing antiglaucoma medication dependence and maintaining intraocular pressure within target range in patients with controlled primary open-angle glaucoma. Methods: This is a retrospective, single-center, case series study of patients who underwent iTrack ab-interno canaloplasty as a standalone procedure ( n = 34) or in combination with cataract surgery ( n = 11). Eyes with controlled mild or moderate glaucoma (intraocular pressure ⩽17 mmHg) were included; those with prior glaucoma surgeries were excluded. The primary outcome was the mean reduction in glaucoma medication and the secondary outcome was the maintenance of controlled intraocular pressure postoperatively. Results: A total of 35 patients (45 eyes) with a mean age of 73 ± 9.7 years were included in the study. For all eyes, a significant decrease (61%) in the mean number of medications was seen at 36 months (1.89 ± 0.93 versus 0.60 ± 0.82; p < 0.001), with 56% (14/25) of eyes medication free. No significant difference was observed in the reduction of medication use whether iTrack was performed with or without cataract surgery at 12 and 36 months. Mean baseline intraocular pressure of 14.42 ± 2.2 mmHg for all eyes was maintained at the 12-, 24-, and 36-month follow-up visits (14.6 ± 3.65, 15.06 ± 2.26, and 14.19 ± 2.91, respectively), with no significant difference between the two groups ( p = 0.08). Conclusion: The iTrack ab-interno canaloplasty significantly reduced medication dependency and maintained intraocular pressure within target range in patients with controlled mild or moderate primary open-angle glaucoma, while showing a good safety profile, both as a standalone procedure or in combination with cataract surgery.

scholarly journals Transpalpebral Electrical Stimulation as a Novel Therapeutic Approach to Decrease Intraocular Pressure for Open-Angle Glaucoma: A Pilot Study

2018 ◽  
Vol 2018 ◽  
pp. 1-6 ◽  
Author(s):  
Félix Gil-Carrasco ◽  
Daniel Ochoa-Contreras ◽  
Marco A. Torres ◽  
Jorge Santiago-Amaya ◽  
Fidel W. Pérez-Tovar ◽  
...  
Keyword(s):  
Electrical Stimulation ◽  
Intraocular Pressure ◽  
Pilot Study ◽  
Open Angle Glaucoma ◽  
Constant Current ◽  
Open Angle ◽  
Naive Group ◽  
Treatment Naïve ◽  
The Mean

Purpose. To determine the effect on intraocular pressure of transpalpebral specific exogenous voltages in a cohort of open-angle glaucoma patients. Methods. This is a prospective, comparative, and experimental pilot study. The electrical stimuli applied consisted of 10 Hz, biphasic, nonrectangular current pulses (100 μA) delivered from an isolated constant current stimulator. At intake, baseline IOP measurements were obtained from each eye. The measurement was repeated before and after microstimulation until the end of the treatment. Results. Seventy-eight eyes of 46 patients diagnosed with POAG were studied: 58 eyes with maximum tolerated medical treatment and 20 eyes without treatment (naïve). The mean baseline IOP on the treated POAG group was 19.25 mmHg ± 4.71. Baseline IOP on the naïve group was 20.38 mmHg ± 3.28. At the four-month follow-up visit, the mean IOP value on the treatment group was 14.41 mmHg ± 2.06 (P<0.0001). The obtained mean IOP measurement on the treatment-naïve group was 15.29 mmHg ± 2.28 (P<0.0001). Conclusions. The hypotensive response obtained using transpalpebral electrical stimulation on POAG patients, both on treatment-naïve patients and on patients receiving maximum tolerable treatment, was statistically significant when comparing basal IOP measurements to those obtained at the four-month follow-up visit.

scholarly journals Intraocular pressure control after trabeculectomy in the patients with primary open angle glaucoma and pseudoexfoliative glaucoma followed up for 3 to 5 years

2019 ◽  
Vol 76 (8) ◽  
pp. 822-829
Author(s):  
Vesna Maric ◽  
Vujica Markovic ◽  
Marija Bozic ◽  
Ivan Marjanovic ◽  
Paraskeva Hentova-Sencanic ◽  
...  
Keyword(s):  
Intraocular Pressure ◽  
Primary Open Angle Glaucoma ◽  
Open Angle Glaucoma ◽  
Survival Curve ◽  
Pressure Control ◽  
Safe Procedure ◽  
Open Angle ◽  
Success Rates ◽  
Pseudoexfoliative Glaucoma ◽  
Significant Difference

Background/Aim. Trabeculectomy is a safe procedure which effectively reduces the intraocular pressure (IOP). IOP is the most frequent indicator of success after glaucoma surgery. The aim of this work was to evaluate the long-term pressure control in primary open-angle glaucoma (POAG) and in pseudoexfoliative glaucoma (XFG) after primary trabeculectomy without the use of mitomycin-C (MMC), 3 to 5 years after trabeculectomy. Methods. This study involved a retrospective evaluation of 332 consecutive patients (352 eyes), 174 patients (188 eyes) with POAG (mean age of 64.0 ? 8.6 years) and 158 patients (164 eyes) with XFG (mean age of 70.7 ? 8.9 years) who underwent primary trabeculectomy between January 2007 and December 2009 at the Clinic for Eye Diseases, Clinical Center of Serbia in Belgrade. A successful control of IOP was defined as achieving IOP ? 21 mmHg without medication (complete success), or with a single topical medication (qualified success). Results. According to the type of glaucoma POAG/XFG preoperative IOP was 28.4 ? 6.3/30.4 ? 8.4 mmHg, respectively (p = 0.311) and last postoperative IOP was 16.9 ? 5.2/18.7 ? 5.9 mmHg, respectively (p = 0.681). According to the Kaplan-Meier survival curve, the complete success in the group with POAG in 1, 3 and 5 years were 85%, 75% and 58% and in the group with XFG were 82%, 70% and 56%, respectively. There was no statistically significant difference in the complete success rates between the patients with POAG and XFG. Conclusion. The primary goal of surgery was to achieve a sufficiently low IOP without additional medication, thus preventing progression of glaucomatous damage. In our study, the complete success in the group with POAG was achieved in 75% and 58% of the patients in the period of 3 and 5 years after surgery, respectively and in the group with XFG complete success was achieved in 70% and 56% of the patients respectively.

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