Biomedical subjects

Erkan Celik

Publications and source records attributed to Erkan Celik.

4 recordsLinked to original sources

PubMed2007

Steamroller versus basic technique in pneumatic retinopexy for primary rhegmatogenous retinal detachment.

PURPOSE: To compare the effectiveness and safety of the "basic" technique with those of the "steamroller" technique in pneumatic retinopexy (PR) for primary rhegmatogenous retinal detachment. METHODS: In this prospective study, 40 eyes of 40 patients with primary rhegmatogenous retinal detachment were treated with PR by argon laser photocoagulation. PR with the steamroller technique (steamroller group) was performed randomly on 21 eyes of 21 patients, and 19 eyes of 19 patients were treated with PR with the basic technique (basic group). Main outcome measures were visual acuity, anatomical outcome, rate of proliferative vitreoretinopathy (PVR) development, and postoperative complications. RESULTS: Mean follow-up +/- SD was 14.7 +/- 9.9 months (range, 6-48 months). Single-operation success rate for all patients was 70% (28/40 eyes). Single-operation success rate was 74% (14/19 eyes) for the basic group and 67% (14/21 eyes) for the steamroller group (P = 0.629). PVR grade C-1 developed in one eye (5%) in each group. Overall success rate, after reoperations, was 100% for each group. Preoperative logMAR (logarithm of the minimum angle of resolution) visual acuity +/- SD was 2.01 +/- 0.43 in the basic group and 1.89 +/- 0.45 in the steamroller group (P = 0.434). Postoperative logMAR visual acuity +/- SD was 0.64 +/- 0.42 in the basic group and 0.46 +/- 0.35 in the steamroller group (P = 0.152). There was no statistically significant difference between basic and steamroller groups in terms of postoperative complications (P > 0.05). CONCLUSION: Basic and steamroller techniques appear to be equally effective and safe in PR for primary rhegmatogenous retinal detachment. The risk for PVR development seems to be similar with either technique. Further studies with a large number of patients are required for a more reliable conclusion.

Adult↗

PubMed2006

Vector alignment in maxillary distraction osteogenesis.

Maxillary distraction osteogenesis is an alternative treatment of cleft patients with severe maxillary hypoplasia. The aim of this paper is to present the combined surgical/orthodontic treatment of a cleft lip and palate patient and to evaluate the maxillary distraction procedure and the distraction vector in high Le Fort I osteotomy.

Adult↗

PubMed2005

Modified grid laser photocoagulation versus pars plana vitrectomy with internal limiting membrane removal in diabetic macular edema.

PURPOSE: To compare the effectiveness of pars plana vitrectomy (PPV) and removal of the internal limiting membrane (ILM) with modified grid laser photocoagulation in diabetic macular edema. DESIGN: Randomized, comparative, interventional study. METHODS: In this prospective study, 24 eyes of 12 patients with bilateral diabetic macular edema were evaluated. PPV with removal of the ILM was performed at random in one eye of 12 patients (ILM group), and a single session of modified grid laser photocoagulation was performed in the fellow eyes (grid group). Main outcome measures were the foveal thickness measured with optical coherence tomography, preoperative, and postoperative visual acuities. Mann-Whitney U and Wilcoxon tests were used in statistical analysis. RESULTS: All patients were followed up for 6 months. In the ILM group, mean foveal thickness was 439.2 +/- 106.5 microm preoperatively and 219.8 +/- 63.2 mum postoperatively (P = .002). In the grid group, mean foveal thickness was 407 +/- 100.2 microm preoperatively and 378.5 +/- 141.6 microm postoperatively (P = .433). A mean decrease in foveal thickness was found to be 219.4 +/- 127.6 microm in the ILM group and 28.5 +/- 90.5 microm in the grid group (P = .001). In the ILM group, best-corrected logMAR visual acuity was 0.75 +/- 0.41 preoperatively and 0.53 +/- 0.41 postoperatively (P = .006). In the grid group, best-corrected logMAR visual acuity was 0.59 +/- 0.27 preoperatively and 0.49 +/- 0.27 postoperatively (P = .058). Visual acuity improved by 2 or more lines in six eyes (50%) in the ILM group and in three eyes (25%) in the grid group. Visual acuity remained stable in six eyes (50%) in the ILM group and in nine eyes (75%) in the grid group. CONCLUSIONS: PPV with ILM removal appears to be more effective than a single session of modified grid laser photocoagulation in the treatment of diabetic macular edema. Further studies with a large number of patients are required for a more reliable conclusion.

Aged↗

PubMed2005

Corneal topographic changes after transconjunctival (25-gauge) sutureless vitrectomy.

PURPOSE: To evaluate the topographic changes in the cornea after pars plana vitrectomy (PPV) with 25-gauge transconjunctival sutureless vitrectomy (TSV) system. DESIGN: Prospective, interventional case series. METHODS: In this prospective study, we evaluated the topographic changes of the cornea in 32 eyes of 32 patients who underwent PPV with the 25-gauge TSV system. The topographic parameters that were analyzed statistically were the average corneal power, corneal surface cylinder, surface asymmetry index, and surface regularity index. Mean induced astigmatism was estimated by vector analysis software. Wilcoxon test was used for statistical analysis. RESULTS: There was no significant change in average corneal power, corneal surface cylinder, surface asymmetry index, and surface regularity index parameters at first day, first week, and first month after the operation. Mean induced astigmatism was 0.38 diopters at 15 degrees. CONCLUSIONS: Corneal surface and astigmatic changes were observed to be insignificant in the early postoperative period after PPV with the 25-gauge TSV system.

Aged↗