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find Author "王亮" 19 results
  • 化学遗传和光遗传癫痫发作模型研究进展

    动物模型是癫痫机制研究的重要载体,目前广泛应用的是化学性惊厥剂和电刺激模型,这些癫痫模型虽能模拟部分癫痫发作的症状和病理过程,但与人类的癫痫发作仍有很大差异。随着化学遗传和光遗传技术在神经科学中的广泛应用,使得特异性操控不同种类的神经元活动得以实现,已有研究利用光遗传或化学遗传的方法去构建癫痫发作模型,克服化学性惊厥剂和电刺激模型的局限性,便于更好地研究癫痫的神经环路机制。

    Release date:2021-06-24 01:24 Export PDF Favorites Scan
  • Pay attention to the study of spontaneous regression of retinopathy of prematurity

    Retinopathy of prematurity (ROP) has become the leading blinding eye disease in children worldwide. In recent years, the recognition and treatment of acute stage lesions have achieved remarkable results. Fundus lesions could spontaneously regress in most of children with ROP, while the understanding of the law of spontaneous regression is still very limited. Although the fundus morphology is significantly improved after spontaneous regression, the long-term prognosis of visual function is not optimistic. The introduction of new technologies such as fundus fluorescence angiography and optical coherence tomography and angiography will help further understanding the nature of the spontaneous regression. To increase the study about spontaneous regression of ROP, which has significance for rationally arranging an economical and efficient screening time, formulating a scientific and individual treatment and follow-up plan, and improving the prognosis of visual function.

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  • 预防小儿腹部Ⅲ类切口感染247例体会

    Release date:2016-08-28 04:08 Export PDF Favorites Scan
  • Treatment for Retinal Detachment in Silicone Oil-filled Eyes by Scleral Buckling and Retinal Laser Coagulation

    目的 研究巩膜外垫压手术联合视网膜激光光凝对硅油眼视网膜脱离的治疗效果。 方法 回顾性分析2009年1月-2012年1月,用巩膜外垫压联合视网膜光凝手术治疗36例硅油眼视网膜脱离的视网膜复位效果。 结果 全部患者均顺利完成巩膜外垫压手术及随后的视网膜激光光凝,行巩膜外放液5只眼,手术中未发生视网膜嵌顿、眼内出血和眼压显著升高等并发症;手术后1周视网膜复位21只眼(58.33%),剩下15只眼1个月后复位7只眼(19.44%),视网膜脱离总复位率为28只眼(77.77%);未复位8只眼(22.23%),改用玻璃体切割手术方式,视网膜成功复位;6个月后取出硅油,随访6个月视网膜无脱离或者脱离范围增加;手术后眼压≥30 mm Hg (1 mm Hg=0.133 kPa)3只眼,≥20 mm Hg 7只眼,对症治疗1周后眼压均恢复到正常范围。 结论 巩膜外垫压联合视网膜激光光凝治疗硅油眼视网膜脱离,手术简单,复位率高,可为硅油眼视网膜脱离首选手术方式,对于巩膜外垫压手术失败和复杂的硅油眼视网膜脱离,应当选择玻璃体切割手术方式。

    Release date:2016-09-07 02:33 Export PDF Favorites Scan
  • Characteristics and Management of Massive Hemorrhage Secondary to Percutaneous Nephrolithotomy

    ObjectiveTo analyze the causes and characteristics of massive hemorrhage secondary to percutaneous nephrolithotomy (PCNL) and assess the value of superselective renal artery embolization in the management of this condition. MethodsThe imaging data and prognosis of 28 patients who developed repeated massive hemorrhage secondary to PCNL and underwent superselective renal artery embolization between April 2005 and June 2013 were reviewed. ResultsFollowing superselective renal artery embolization, hemorrhage was effectively controlled in all the 28 patients. Follow-up lasted from 6 to 62 months, averaging 41.6 months. No hematuria or other complications occurred during the follow-up period. ConclusionSuperselective renal artery embolization is safe and effective in managing massive hemorrhage secondary to PCNL, and it may be used as a preferred treatment for patients who are refractory to expectant treatments.

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  • 雌激素对视网膜主要细胞功能的影响

    雌激素通过与雌激素受体(ER)结合而发挥生理功能, ER亚型和特异性激动剂和拮抗剂的研究进展为进一步认识雌激素作用机制提供了可能。雌激素可能通过对视网膜血管内皮细胞、色素上皮细胞、神经节细胞、光感受器细胞和Müller细胞等主要视网膜细胞功能的影响, 改善血视网膜屏障、保护视网膜光感受器细胞、视神经, 减轻氧化应激反应对视网膜色素上皮细胞损害。详尽研究ER各亚型在视网膜主要细胞的分布及特异性激动剂和拮抗剂对这些细胞的作用将为眼底病的防治开拓一个新的领域。

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  • Early and Midterm Results of Endovascular Repair of Pseudoaneurysms of Descending Aorta

    Objective To summarize our clinical experience of endovascular repair of aortic pseudoaneurysms,andexplore the etiology of the disease,treatment indications,and early and midterm results of the procedure. Methods From November 2009 to May 2012,52 patients with aortic pseudoaneurysms received endovascular aortic repair (EVAR) in FuWai Hospital. There were 44 male and 8 female patients with their age of (53.8±13.5 ) years. Their onset syndromes includedchest or back pain in 46 patients and hoarseness in 5 patients. There were 23 acute patients and 29 chronic patients. Aortic pseudoaneurysms located at the descending thoracic aorta in 51 patients and the abdominal aorta in 1 patient. The meandiameter of the aortic pseudoaneurysms was (45.1±33.8) mm. All the patients were diagnosed using enhanced CT scan of the aorta. Three patients received emergency EVAR. All the patients received EVAR through the femoral arteries under general anesthesia. Forty-six patients underwent isolated EVAR,5 patients received hybrid technique for EVAR via the neck,and 1 patient received hybrid technique including EVAR and total arch replacement via median sternotomy under normothermia. The average diameter of stent-grafts was (34.2±3.3) mm and the average length was (157.7±20.3) mm. Enhanced CT scan of the aorta was performed before discharge,3 months and 1 year after EVAR during follow-up. Results There was no in-hospital death and EVAR was 100% successful. All the patients (100%) were followed up for 1-31 (12.6±7.9)months after discharge. Their chest or back pain symptoms all significantly improved. Their hoarseness improved too duringfollow-up. One patient’s hoarseness disappeared early after EVAR but recurred 5 months after EVAR. Enhanced CT scan showed enlargement of the stent-graft without endoleak. One patient underwent emergency EVAR for sudden onset of massivehemoptysis,recovered well before discharge,and was readmitted to hospital 5 months after EVAR because of fetid sputum and hemoptysis,who was diagnosed as Behcet’s disease and cured after anti-infection and immunosuppressive therapy. One patient had recurrent fever before and 6 months after EVAR and was cured by antibiotic therapy. Intraoperative angiographyshowed trivial typeⅠendoleak in 4 patients right after stent-graft deployment,which disappeared in enhanced CT scan 3-6 months after EVAR. Intraoperative angiography showed no endoleak in all the other patients,and their enhanced CT scans 3 months and 1 year after EVAR showed complete sealing between the stent-grafts and the aortic wall,thrombus in the pseudoaneurysm sac and decreased diameters of the pseudoaneurysms without endoleak. Two patients had hemiplegia 1 dayand 6 days after EVAR respectively,1 patient was cured and discharged and the other patient survived with hemiplegicsequelae. One patient with an abdominal aortic pseudoaneurysm died of sudden onset of cerebral infarction at home 3 monthsafter EVAR. Conclusions Endovascular repair of descending aortic pseudoaneurysms is safe and effective with good early and midterm results,and longer follow-up is needed for its long-term outcomes. Individualized treatment plan is basedon the location of the pseudoaneurysms. Preoperative meticulous medical history and physical examination are both importantfor the differentiation of the etiology of aortic pseudoaneurysms. Postoperative treatment based on the etiology and close follow-up are also needed to ensure long-term results.

    Release date:2016-08-30 05:47 Export PDF Favorites Scan
  • 从医源性角度探讨股骨锁定钢板断裂的原因及防治措施

    目的 探讨股骨锁定钢板断裂的医源性因素及防治措施。 方法 回顾分析2007 年5 月- 2009 年8 月收治的11 例股骨骨折内固定术后锁定钢板断裂患者临床资料。其中男7 例,女4 例;年龄22 ~ 65 岁,平均38 岁。原骨折位于股骨干5 例,股骨远端6 例。切开复位锁定钢板内固定术后2 ~ 6 个月钢板断裂;断裂原因:适应证选择不当,违反锁定钢板操作原则,术后功能锻炼及康复训练不到位,医患交流缺失。11 例均再次手术,其中股骨干骨折5 例、股骨远端骨折1 例行髓内钉固定,余5 例股骨远端骨折再次行锁定钢板固定。 结果 二次术后11 例均获随访,随访时间8 ~ 20 个月,平均12 个月。术后4 ~ 8 个月,平均6 个月,所有患者骨折均达骨性愈合。无钢板再断裂及其他相关并发症发生。术后8 个月根据美国特种外科医院(HSS)评分系统对膝关节功能评定:优7 例,良3 例,可1 例;优良率90.9%。 结论 合理选择适应证、规范手术操作、正规康复训练、加强医患交流是防治股骨骨折内固定术后锁定钢板断裂的有效措施。

    Release date:2016-08-31 05:43 Export PDF Favorites Scan
  • SURGICAL TREATMENT OF SPINAL TUBERCULOSIS ASSOCIATED WITH DIABETES MELLITS

    Objective To investigate the perioperative management and the results of surgical treatment of spinal tuberculosis associated with diabetes mellitus. Methods The cl inical data were analysed retrospectively from 42 patients with spinal tuberculosis associated with type 2 diabetes mell itus who were surgically treated between July 2001 and January 2009.There were 22 males and 20 females with an average age of 56.5 years (range, 41-78 years). The disease duration was 4-18 months (mean, 7.5 months). The involved vertebrae included 2 cervical vertebrae, 13 thoracic vertebrae, 17 thoracolumbar vertebrae, and 10 lumbar vertebrae. Of them, 18 patients compl icated by paraplegia, and 25 patients had more than one of concomitant diseases. Anterior debridement and bony grafting with anterior instrumentation fixation were performed in 16 patients; anterior debridement and bony grafting with posterior instrumentation fixation in 4 patients; posterolateral costotransversectomy debridement and interbody fusion with posterior instrumentation fixation in 8 patients; posterior debridement and bony grafting with posterior fixation in 7 patients; sinus resectomy and focus debridement in 2 patients; anterior debridement and bony grafting in 3 patients; and CT guided percutaneous catheter drainage in 2 patients. Postoperative anti-tuberculosis treatment was given for 12-24 months. Results The patients were followed up 1.5-5.0 years, with a mean period of 3.5 years. One patient died of pulmonary infection after 1 week of operation; 1 patient died of myocardial infarction after 2 years of operation; and other patients survived without tuberculosis recurrence. Among 38 patients who received bony grafting, 34 patients achieved bony fusion, 3 suffered bony grafting failure without kyphotic deformity or instabil ity except 1 patient who died from pulmonary infection. Among 18 cases compl icated by paraplegia, nerve function improved to a certain extent. The intraoperative and postoperativecompl ications occured in 28 cases. The systemic compl ications mainly included heart insufficiency in 5, heart rrhythmia in 3, pulmonary infection in 2, urinary tract infection in 2, and stree ulcer in 1; they were cured after medical treatment. The local complications mainly included sinus tract formation in 5, pleural tear in 2, neurologic injury in 2, intraoperative tear of inferior vena cava in 2, and the loosening of transpedicular screws in 4; they all were cured effectively. Conclusion Surgical treatment of spinal tuberculosis associated with diabetes mell itus appears to be a beneficial procedure on the condition that the blood glucose is controlled and the associated disorders and postoperative complications are properly handled, and reasonably selection of surgical procedures is very important. Instrumentation fixation provides adequate stabil ity to allow early mobilization.

    Release date:2016-09-01 09:04 Export PDF Favorites Scan
  • IMPLANTATION OF CALCIUM PHOSPHATE CEMENT/DANSHEN DRUG DELIVERY SYSTEM FOR AVASCULARNECROSIS OF FEMORAL HEAD

    【Abstract】 Objective To introduce a new method using calcium phosphate cement/Danshen drug del ivery systemfor avascular necrosis of femoral head and to evaluate its cl inical outcome. Methods From May 2000 to June 2005, 48 patients (54 hips) with avascular necrosis of femoral head were treated with calcium phosphate cement/Danshen drug del ivery system implantation in the involved femoral head. There were 32 males(36 hips) and 16 females(18 hips) with an average age of 38.7 years (26-62 years). Twenty-one cases had the history of drinking or smoking, 15 cases had the history of receiving hormonotherapy and 2 had the history of injury in hip joint. The disease course was 2-32 months. According to standard of Association Research Circulation Osseous (ARCO) staging, 9 hips were classified as stage I, 31 as stage II and 14 as stage III. The operation consisted of removal of necrotic bone under weight-loading cartilage and the implantation of calcium phosphate cement/Danshen drug del ivery system, all mani pulations were done through a bone tunnel in trochanter. The function of hi p joint were evaluated and X-ray films were taken pre- and post-operatively. Results No phlebothrombosis of leg and foreign body action occurred in all cases, and incision healed by first intention. The postoperative follow-up averaged 42.5 months, ranging from 22 to 73 months. According to the evaluation criterion of Dandong 1995 for adult avascular necrosis of femoral head, the results were excellent in 33 hi ps, good in 17, fair in 3 and poor in 1, the excellent and good rate was92.6 %. Conclusion This method is relatively simple with less invasion, it not only improves the microcirculation of femoral head by local appl ication of traditional Chinese medicine, but also provide mechanic buttress in the weight-loaded area, which is beneficial to repair and reconstruction of femoral head. It may be a choice of minimally invasion surgery for femoral head necrosis.

    Release date:2016-09-01 09:10 Export PDF Favorites Scan
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