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find Keyword "膜" 5200 results
  • Open heart operation on neonates with critical congenital heart disease 推荐 CAJ下载 PDF

    Objective To summarize the experience of open heart operation on neonates with critical and complex congenital heart diseases and evaluate the methods of perioperative management. Methods From May 2001 to January 2003, 12 patients of neonates with congenital heart diseases underwent emergency operation. Their operating ages ranged from 6 to 30 days, the body weights were 2.8 to 4.5 kg. Their diagnoses included D-transposition of the great arteries in 4 cases, ventricular septal defect with atrial septal defect in 5 cases, complete atrioventricular septal defect, obstructed supracardiac total anomalous pulmonary venous drainage and cardiac rhabdomyomas in 1 case respectively. 12 cases were operated under moderate or deep hypothermic cardiopulmonary bypass. Results All cases were observed in ICU for 2-11 days and discharged 7-19 days after operation. The postoperative complications included low cardiac output, mediastinal infection, respiratory distress syndrome, systemic capillary leak syndrome and acute renal failure. All cases were cured and the follow-up (from 6 months to 2 years) showed satisfactory outcome. Conclusion A particular cardiopulmonary bypass and proper perioperative management is very important to ensure the successful outcome. Peritoneal dialysis is an effective and safe method for treating acute renal failure after cardiac operation in neonates.

    Release date:2016-08-30 06:27 Export PDF Favorites Scan
  • Vitreous surgery for severe ocular trauma

    Objective To summarize the visual outcome of patients with severe ocular trauma treated with vitreous surgery. Methods Clinical data of 188(191 eyes) with severe ocular trauma treated with vitreous surgery in a period from November 1996 to April 1998 were analysed retrospectively. Results The study included penetrating injury in 56 eyes, foreign bodies in the posterior segment in 70 eyes, blunt injury in 41 eyes , and globe rupture in 24 eyes. Main complications included endophthalmitis in 35 eyes, choroidal bleeding in 20 eyes, retinal detachment in 60 eyes, and vitreous hemorrhage in 97 eyes. Post-opera-tively, out of 188 eyes, except for 3 of patients too young to examine, visual acuity improved in 133(70.7%), including 85(45.2%) with visal acuity 0.02-1.0, 46(24.5%) remained unchanged; and 9(4.8%) had worse vision. Among 34 with no-light-perception, 12 had light-perception or over. Conclusion A majority of severe trauma eyes can be salvaged with considerable visual recovery after adequate and timely vitreous surgery. (Chin J Ocul Fundus Dis,1999,15:4-6)

    Release date:2016-09-02 06:08 Export PDF Favorites Scan
  • A Brief Analysis of Formation Mechanism and Related Issues of Psammoma Body in Human Tumors .

    Objective To understand the latest research developments of the formation mechanism of psammoma body in human tumors and related issues. Methods Related domestic and foreign literatures were widely referred, analyzed, and reviewed. Results Psammoma body is unique pathological calcification in some tumors, which is arranged in concentric, laminar circles microscopically. Psammoma body is commonly seen in thyroid papillary carcinoma, meningiomas, ovarian serous papillary carcinoma, and so on. Conclusions Although arranged in concentric, laminar circles microscopically in tumor, the formation process of psammoma body is not entirely the same in different tumors. A comprehensive and objective understanding of psammoma body would be useful in cancer diagnosis and treatment.

    Release date:2016-09-08 10:50 Export PDF Favorites Scan
  • RECONSTRUCTION OF URETHRA PARTIAL DEFECT WITH SCROTAL FLAP

    Objective To introduce the application of the scrotal flap on reconstructing partial urethra defect. Methods From March 1998 to August 2004, 31 patients with urethra defect were treated with scrotal flap. Their ages ranged from6 to 34 years. Thirty-one patients included 8 cases of congenital deformity of urethra and 23 cases of complication of urethral fistula, urethral stenosis and phallus bend after hypospadias repair. The flap widths were 1. 2. cm in child and 2.3. cm in adult. The flap lengthwas 1. -2.0 times as much as the width. Nine cases were classified as penile type, 10 cases as penoscrotal type, 7 cases as scrotal type(3 children in association withcleft scrotum) and -cases as perrineal type because of pseudohermaphroditism.Urethroplasty was given by scrotal fascia vascular net flap to reconstruct urethra defect. Results All the flaps survived, and the incision healed well. Twenty four cases achieved healing by first intention and 7 cases by second intention. And fistula occurred and healed after 2 weeks in 1 case. 27 cases were followed up 14 years, 2 cases had slight chordee, the others were satisfactivly. Conclusion Urethroplasty with scrotal fascia vascular net flap is an ideal method for the partial defect urethra.

    Release date:2016-09-01 09:25 Export PDF Favorites Scan
  • Characteristics of clinic and fluorescein angiogram of multifocal choroiditis

    Objective To observe the clinical manifestations and feat ures of fundus fluorescein angiograms(FFA)of patients with multifocal choroiditis (MFC)MethodThe data of 8 patients who had been diagnosed by clinic and FFA as with MFC were collected, and their clinical manifestatio ns and results of FFA were analyzed and valued.ResultsThe age of the 7 female and 1 male patients ranged from 16 to 32, and all of the 8 patients had high myopia (from -6.00 D to -8.00 D) with binocular multiple small yellowish white lesions in posterior pole of the fundus and a few phlogistic ce lls in vitreous body. In addition, macular choroidal neovascularization membrane (CNV) was found in 6 patients, binocular in 2 and monocular in 4. The results of FFA in 7 patients showed hypofluorescence of the yellowish white lesions at t he early phase and pigmentation at the late phase; Corresponding manifestations of FFA could be found in the patients attended by CNV surrounded by leakage.ConclusionMFC are mostly diagnosed in young females with myopia. Most of the patients had binocular affection with multiple small yellowish white lesions at the posterior pole, whose FFA shows hypofluoresence of the active lesions at the early phase and pigmentation at the late phase. CNV may occur in patients with MFC.(Chin J Ocul Fundus Dis,2004,20:335-338)

    Release date:2016-09-02 05:58 Export PDF Favorites Scan
  • 国产染料激光机光凝治疗黄斑水肿60例

    用国产眼科染料激光机光凝治疗几种眼底病引起的黄斑水肿60例60只眼。平均追踪观察6个月,39眼(65.00%)视力有提高,其中病程3个月以内的有30只眼(76.92%).眼底荧光血管造影复查60只眼,49只眼(81.67%)的黄斑区荧光素渗漏有不同程度减轻,8只眼(13.33%)的消失。其中以分支静脉阻塞(30只眼)疗效最好,视力提高者27眼(90.00%),复查眼底荧光血管造影好转和正常者29眼(96.66%).黄斑水肿光凝治疗的效果与病程长短有关,与病种有关,与黄斑区出血范围大小有关。并介绍了国产眼科染料激光机的特点。 (中华眼底病杂志,1996,12:46-47)

    Release date:2016-09-02 06:21 Export PDF Favorites Scan
  • 视网膜脱离术后复发的原因与处理

    分析57例视网膜脱离术后视网膜不复位26例,复位后再脱离31例,手术失败的原因,发现原裂孔未闭、新裂孔形成和增殖性玻璃体视网膜病变是视网膜脱离术后未复位或再脱离的三大原因,并分析了造成这些原因的因素,讨论了有关再手术的问题。 (中华眼底病杂志,1993,9:164-165)

    Release date:2016-09-02 06:35 Export PDF Favorites Scan
  • Effects of indocyanine green angiography on electroretinogram

    Objective To icompare the effects of indocyanine green angiography(ICGA) on ganzfeld Electroretinogram(ERG). Methods ICGA was performed used the Topcon 50IA retina camera, Ganzfeld ERG was recorded by Neuropack Ⅱ evoked response recorder. The Ganzfeld ERG was recorded before and after ICGA in 20 cases (38 e yes) with different diseases , Ganzfeld ERG was recorded according to the ISCEV standard recommendations. Results ICGA did neither affect Ganzfeld ERG a-wave and b-wave latency nor amplitudes of dark adaptation, maximum response and light adaptation.(Pgt;0.05). Conclusion ICGA using the Topcon 50IA could be performed prior to the recording of the Ganzfeld ERG. (Chin J Ocul Fundus Dis, 2001,17:284-285)

    Release date:2016-09-02 06:03 Export PDF Favorites Scan
  • Annual result of retinopathy of prematurity screening in Shanghai area

    Objective To investigate the incidence of retinopathy of prematuri ty (ROP) in the area of Shanghai, and to provide the preliminary data for the ev aluation of present criteria for ROP screening. Methods Record s of 289 prematur e infants who had undergone ROP screening from the four NICU in Shanghai between February 2004 and January 2005 were analyzed. Screening criteria included prete rm infants or low birth weight (LBW) infants with BW of 2000g or less. The first examination starts at 4 to 6 weeks chronologic age or 32 weeks post conceptual age. Results In the 289 screened infants, 19 had developed acu te ROP. There we re 3 threshold ROP, 7 prethreshold ROP and 9 developed ROP less than prethreshol d. The incidence of ROP was 6.6%. According to the British recommended guideline s(BWle;1500 g or GAle;31 weeks), only 119 out of 289 needed screening and one ca se of stage 1 ROP was missed; the incidence of ROP was 15.1% (18/119). When lowered sc reening criteria to the American guidelines(BWle;1500g or GAle;28 weeks), t here were only 83 infants needed screening, and we missed 2 stage 1 and 1 prethreshold ROP and the incidence of ROP was 19.3% (16/83). Conclusions The i ncidence of ROP i s 6.6% according to our study. It is lower than other reports and it has somethi ng to do with our present screening guideline. Further epidemiological data are needed to modify the guideline accordingly.

    Release date:2016-09-02 05:46 Export PDF Favorites Scan
  • 视网膜变性和功能不良性疾病动物模型的研究现状

    随着医学分子生物学技术的发展,对各种视网膜变性和功能不良性疾病发病机制的研究及疾病治疗的探索有了进一步的深入,试验型活体基因治疗将是未来最有希望挽救视网膜感光细胞的治疗手段,因而建立相应的疾病动物模型,有着比以往更为重要的作用,从遗传学、转基因技术及有道德动物模型三方面对视网膜变性疾病的动物模型研究作进一步综述。 (中华眼底病杂志,2004,20:54-57)

    Release date:2016-09-02 05:58 Export PDF Favorites Scan
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