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Objective To evaluate the feasibility and efficacy of endoscopic push?radial dissection (EPRD)for benign esophageal stricture(BES). Methods Clinical data of 24 patients diagnosed as having BES who received EPRD were analyzed. The procedure and efficacy were evaluated. Results All 24 patients underwent EPRD successfully with mean operation time being 32 min(15?45 min).The mean esophageal stric?ture incision length was 3?? 2 cm (1?? 0?8?? 0 cm).No severe complications related to EPRD occurred, or trans?ferred for surgery. Patients were followed up for 1?5 months (mean 2?? 8 months). Dysphagia was relieved signif?icantly during the follow?up in 23 patients where endoscopy could go through smoothly. But dysphagia re?oc?curred in one patient 2 weeks after the operation, who underwent a second EPRD and stent implantation, then dysphagia was relieved. Conclusion EPRD is safe, feasible and effective for benign esophageal stricture.
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OBJECTIVE@#To explore the feasibility of fixation characteristics to evaluate visual acuity.@*METHODS@#The fixation characteristics were examined in 75 subjects by MP-1 microperimeter. These subjects were divided into 3 groups: central fixation group, uncertain group and eccentric fixation group, and the differences of visual acuity among them were analyzed. Pearson correlation and regression analysis were performed on visual acuity and average retinal light sensitivity.@*RESULTS@#(1) The visual acuity was 4.80±0.16 for central fixation group; 4.20±0.45 for uncertain group; and 3.40±0.57 for eccentric fixation group, respectively. Based on the one-way ANOVA, the visual acuities in the three groups had statistically significant differences (P<0.05). (2) There was linear relationship between visual acuity (y) and average retinal light sensitivity (x). And the linear regression equations was y=-18.76+6.21x. The Pearson correlation coefficient was 0.707 (P<0.05).@*CONCLUSION@#There is significant positive correlation between visual acuity and fixation characteristics. Testing of fixation characteristics could be used to assess visual acuity objectively, which has a practical value in forensic clinical medicine.