Objective To observe the incidence of ciliary detachment and its relationship with intraocular hypotension soon after vitrectomy.Methods A total of 46 eyes of 46 patients who underwent vitrectomy were examined by ultrasound biomicroscope (UBM).The patients were divided into three groups according to different tamponade: gas group (11 eyes),silicone oil group (8 eyes) and balanced saline solution (BSS) group (27 eyes).Basing on the postoperative intraocular pressure (IOP),the patients were divided into two groups: IOP<10 mm Hg (25 eyes) and IOP≥10 mm Hg (21 eyes).UBM was applied to determine the tomographic features of the ciliary body 3 days after the surgery.IOP were monitored by non-contact tonometer daily after the surgery.The eyes with ciliary detachment were then examined once a week till the ciliary detachment reattached.The follow-up period was from 14 to 35 days.Results After vitrectomy,ciliary detachment was observed in 20 eyes of 46 eyes (43.5%),The incidence of ciliary detachment was 27.3% in gas group,25.0% in silicone oil group,and 55.6% in BSS group.The average IOP in eyes with ciliary detachment [(6.47±4.49) mm Hg (1 mm Hg=0.133 kPa)] was significantly lower than that in the eyes without ciliary detaehmen [(15.61±7.72) mm Hg] (t=8.031,P<0.001).The incidence of ciliary detachment was higher in eyes with postoperative IOP <10 mm Hg (68.0%) than that in the eyes with postoperative IOP≥10 mm Hg (14.3%) (χ2=15.60,P<0.001).All eyes with postoperative ciliary detachment got spontaneous reattaehment within 30 days after the surgery except that one eye had optic disc edema due to severe intraocular hypotension.Conelusions Early postoperative ciliary detachment is a common complication after vitrectomy.Eyes filled with BSS have the highest incidence of postoperative ciliary detachment.Most of the patients with ciliary detachment may get spontaneous reattahment within 30 days after the surgery.

Evidence-Based Medicine ; Humans ; Neck Dissection ; methods

Objective To compare the efficacy of pneumatic retinopexy and subretinal drainage in the treatment of primary rhegmatogenous retinal detachment(RD) in scleral buckling procedure.Methods Pneumatic retinopexy or subretinal drainage was applied during the scleral buckling procedure when lots of subretinal fluid existed.Results Twenty-three of 26 eyes(88.5%) were successfully reattached by pneumatic retinopexy during scleral buckling procedure for the repair of primary retinal detachment.New hole formation was the major complication for the surgical failure.One eye was fixed by another buckling procedure and the other two were treated by vitrectomy.Eleven of 12 eyes(91.7%) with primary RD were successfully managed by scleral buckling procedure and subretinal fluid drainage.Subretinal hemorrhage occurred in one eye after subretinal drainage.Conclusion Pneumatic retinopexy can substitute subretinal drainage in the repair of primary rhegmatogenous retinal detachment when plenty of subretinal fluid exists.

Objective To compare the anatomic and functional results of ocular intensive and systemic corticosteroid administration prior to vitrectomy for primary rhegmatogenous retinal detachment with choroidal detachment.Methods A retrospective,clinical pilot study.Results Of 38 cases of primary rhegmatogenous retinal detachment with choroidal detachment,11 cases received intensive 1% prednisolone acetate eyedrops once each hour,totally 16 times a day(Group A)for(4.91?1.51)days and 27 cases received systemic corticosteroid treatment which is performed as intravenous injection of 15 mg Dexamethasone for 3 d and then taped down for(5.67?1.88)days prior to vitrectomy(Group B).The rate of anatomic reattachment by one operation was 54.5% for Group A and 63.0% for Group B;The rate of reattachment by reoperation was 80% for Group A and 100% for Group B.The functional result was the same in the two groups,with the vision improvement in 70% cases of Group A and 68% cases of Group B.The minimal follow-up period was 3 months after final operation.Conclusion There is an obvious tendence of lower rate of anatomic reattachment in intensive steroid eyedrops treatment group than in systemic corticosteroid treatment group.However,the functional result is almost the same in the two groups.

Humans ; Laryngeal Neoplasms ; therapy

Arytenoid Cartilage ; surgery ; Contraindications ; Glottis ; Humans ; Laryngeal Neoplasms ; pathology ; surgery ; Laryngectomy

Academic Dissertations as Topic ; Humans ; Otolaryngology ; trends ; Otorhinolaryngologic Surgical Procedures ; methods ; Thyroidectomy ; methods

Purpose: To study the expression of VEGF, VEGF-C, fit-4 in breast cancer and its relationship with lymph node metastasis and explore the significance of lymphangiogenesis on metastasis via lymphtics. Methods: Paraffin-embedded specimens from 82 patients with primary breast cancer who had undergone radical mastectomy with lymph node dissection were studied. VEGF, VEGF-C, flt-4 expression were investigated by immunohistochemical staining. Results: Positive staining for VEGF, VEGF-C, flt-4 were observed in some breast cancer cells. Furthermore, the expression of VEGF-C, flt-4 were significantly higher in lymph node-positive group than in node-negative group. Correlation was found within the expression of VEGF-C, flt4 also. Conclusions: Clinical significance was found between VEGF-C, flt-4 expression and lymph-node metastasis in breast cancer, and may be involved in the metastatic process.

Objective:To investigate the remodeling of alveolar bone and the changes of roots after an-terior retraction with maximum anchorage by analyzing CBCT data from adult cases.Methods:The sam-ple comprised 48 incisors and 24 canines from 12 patients (18 to 40 years of age)with problems of ma-xillary protrusion or upper arch protrusion.CBCT scans were exposed before and after treatment,and la-teral cephalometric images as well as multiple planar reconstruction images were reconstructed.Tracing superimpositions of sagittal sections and three-dimensional reconstructions were done for qualitative analy-sis.For all maxillary anterior teeth,changes of root length,alveolar bone height and labial-palatal thick-nesses at different levels were evaluated.The average of measurements taken by the same tester in three times was processed by SPSS 17.0 statistical package.Results:In 6 of the 12 cases,alveolar thickness became thinner on labial side [apical area:(-0.64 ±1.18)mm]while thicker on palatal side [apical area:(0.93 ±2.0)mm]and the root length decreased[(-0.95 ±0.79)mm].In the other 6 cases, the incisors’alveolar bone became thicker on labial side [apical area:(2.12 ±1.46)mm]while thin-ner on palatal side [apical area:(-2.88 ±0.58)mm]and the loss of root length was obvious[(-2.12 ± 1.43)mm].In all the 12 cases,the canines’alveolar bone became thinner on labial side especially on the apical level [(-0.27 ±1.86)mm]while greatly thicker on palatal side [apical area:(6.40 ± 6.00)mm]and the root resorption was slight [(-1.12 ±1.19)mm].For all the anterior teeth,the height of alveolar bone reduced around them after retraction.Conclusion:When the root apical moved more palatally,more root resorption would occur and the alveolar bone would get thicker on labial side but thinner on palatal side and thinner as a whole after anterior retraction with maximum anchorage.In the vertical direction,the height of the alveolar bone generally decreased on all sides and decreased the most on the palatal side.

Objective To study The influence and preventive measures for the test results of total bile acid about blood Lipid testing reagent. Methods In Mindray BS -300 automatic biochemical analyzer, we detected total bile acid of the fresh mixed serum separately, then we tested the same samples after the test items of cholesterol, triglycerides, high -density lipoprotein, low - density lipoprotein. Then using fresh serum mixed with normal saline and blood lipid reagent according to 1: 1 dilution ,we measured TBA. We did cross - contamination corrected test (by the anti - cross - contamination to repeat the first step after the test) and recorded all results and had statistics analysis. Results This experiment found that reagents Ⅰ of TC, TG and the reagent Ⅱ of HDL - C , LDL - C had significant positive interference in determination of TBA results. After being corrected by anti - cross - contamination, the results returned to normal. Conclusion When using the automatic biochemical analyzer, we not only acquired the worker fououed of the equipment, and reagents, determined principle, but also pay attention to cross - contamination among reagents, and then in accordance with the equipment work characteristics to establish the appropriate measures to eliminate them, so made sure the reliability of the experimental data to provide clinic with the true objective and actual diagnosis evidence fundamentally.