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find Author "YOU Chao" 12 results
  • APPLICATION OF ENDOVASCULAR COVERED STENT FOR TREATING VERTEBRAL DISSECTING ANEURYSMAND CAROTID-CAVERNOUS FISTULA

    Objective To investigate the therapeutic effects of endovascular covered stent on vertebral dissecting aneurysm and carotid-cavernous fistula (CCF). Methods From March 2006 to May 2007, Jostent coronary stent grafts were used to treat 4 patients with vertebral dissecting aneurysm and 3 patients with CCF. The patients of vertebral dissecting aneurysmwere male and 37-57 years old, the lesion was located on the left vertebral artery in 3 patients and on the right vertebral artery in 1 patient, with the primary symptoms of sudden headache and vomiting; CT scan demonstrated subarachnoid hemorrhage; and the medical history varied from 2 days to 10 years. The patients of CCF were male and 35-51 years old, the lesion was located on the left carotid artery in 2 patients and on the right carotid artery in 1 patient, with the primary symptoms of headache, lateral exophthalmos, eyeball distending pain, conjunctive hyperemia and impaired eyesight; all 3 patients got head injury 2 days to 1 month before the appearance of symptoms and 1 of them had a history of severe nosebleed; and the medical history ranged from 1 week to 2 months. Results For the patients with vertebral dissecting aneurysm, complete obl iteration of aneurysms was achieved, the circulations of the vertebral artery, the adjacent posterior inferior cerebellar artery and the adjacent anterior inferior cerebellar artery were smooth, no compl ications relative to operation occurred, and no recurrence of symptoms and intracranial rehaemorrhagia were observed during the follow-up period of 8 months-2 years. For the patients with CCF, the fistula were completely obl iterated, the circulation of carotid artery was smooth, the exophthalmus and conjunctiva hyperemia were improved obviously 3 days after operation, the eyesight of patient was improved at different levels over the follow-up period of 1-3 months. Conclusion Endovascular covered stent is a new and useful tool for the treatment of vertebral dissecting aneurysm and CCF .

    Release date:2016-09-01 09:05 Export PDF Favorites Scan
  • RESECTION OF EXTENSIVE PITUITARY ADENOMA VIA SUPRAORBITAL KEYHOLE WITH ENDOSCOPEASSISTED MICRONEUROSURGERY

    Objective To study the methods and techniques of the treatment forextensive suprasellar pituitary adenona and repairing hole.Methods From Feb. 2001 to Mar. 2003, 9 patients with exrensive suporasellar pituitary adenoma underwent resection via suprabital keyhole with endoscope-assisted microneurosurgery. Then the remaining tumor was removed with neuroendoscope via Ⅰand Ⅱ space of optic chiasma. The small bone flap was fixed with Ti clamp. Results After the tumor was removed with microneurosurgery, the remaining tumor was still found with endoscope in 7 cases. Remaining tumor was totally removed in 6 cases, almost removed in 3 cases. The vision improvement was found in 7 cases one week after surgery. In the other 2 cases, the vision remained unchanged. Follow-up was conducted in 6 cases for 6 to 22 months. Neuroradiological recovery of MRI with no recurrence of tumor was observed. No complication of incision was present. Conclusion Enough intra and extra-cranial space can be provided to operate via orbital roof approach to sellar tumors. Endoscope-assisted microneurosurgery can increase the total-resection and successful rate treatment for extensive suprasellar pituitary adenoma, reduce the possibility of complication, and pretect the function of brain from being injured. Fixation of small bone flap with Ti clamp is safe, easy and reliable.

    Release date:2016-09-01 09:29 Export PDF Favorites Scan
  • Microsurgery Treatment of Ruptured Middle Cerebral Artery Aneurysms

    目的 探讨显微手术治疗破裂大脑中动脉动脉瘤(MCAA)的适应证、术前评估及手术技巧。 方法 回顾性分析2008年1月-2011年1月经翼点入路行显微外科手术治疗的65例破裂MCAA患者的临床资料。其中男40例,女25例;年龄22~78岁,平均46.8岁。术前Hunt-Hess分级:Ⅰ级15例,Ⅱ级25例,Ⅲ级13例,Ⅳ级10例,Ⅴ级2例。动脉瘤直径<5 mm 10个,5~15 mm 36个,15~25 mm 15个,>25 mm 4个,平均7.8 mm。其中56例动脉瘤位于大脑中动脉分叉部,5例位于大脑中动脉的M1段,4例位于分叉后M2段。 结果 手术夹闭动脉瘤60例,余5例行动脉瘤夹闭加包裹术。患者术后获随访3~36个月,平均16个月,均无动脉瘤复发或再出血发生。按格拉斯哥预后评分(GOS)结果评定:恢复良好58例(GOS 4~5分),差5例(GOS 2~3分),死亡2例(GOS 1分)。 结论 充分的术前评估,合适的手术入路选择,以及手术技巧的灵活应用是显微外科手术成功治疗破裂MCAA的保证。

    Release date:2016-09-08 09:14 Export PDF Favorites Scan
  • MICROVASCULAR DECOMPRESSION FOR CRANIAL NERVE HYPERACTIVE DYSFUNCTION610041, P.R.China.

    Objective To assess the results of microvascular decompression (MVD) in treating cranial nervehyperactive dysfunction. Methods From October 2002 to January 2007, 106 patients with cranial never hyperactivedysfunction were treated with MVD. Among them, there were 47 males and 59 females with an average age of 62 years (42-85 years), including 56 cases of trigeminal neuralgia, 33 cases of hemifacial spasm and 17 cases of spasmodic torticoll is. MRI showed obvious nerve root compression in 60 patients (56.6%), suspected nerve root compression in 33 patients (31.1%) and no nerve root compression in 13 patients (12.3%). The disease course was 2-300 months with median course of 54 months. The typical manifestations before operation were pain and myospasm in corresponding innervation region. Results The superior cerebellar artery was the most common offending vessel in trigeminal neuralgia (44.6%, 25/56), the anterior inferior cerebellar artery in hemifacial spasm (33.3%, 11/33), and the vertebra-basilar artery in spasmodic torticol is (82.4%, 14/17). Compl ications of facial paralysis, hypoacusia, facial numbness, dizziness, pain of neck and shoulder, muscles weakness of neck and subcutaneous dropsy occurred in 31 patients (29.2%). All patients were followed up for 6-42 months. The total response rate was 90.6%. The curative rate of MVD was 83.9% (47/56) in trigeminal neuralgia, 81.8% (27/33) in hemifacial spasm and 41.2% (7/17) in spasmodic torticol is, respectively. Five patients failed to response (4.7%), 2 of them were cured after re-operation and 3 abandoned further treatrment. Five patients suffered recurrence 3-8 months after operation (4.7%), 2 of them recovered after re-operation, 1 got rel ief by Gamma-knife treatment, and 2 abandoned further treatment. Conclusion MVD has a good therapeutic effect on the disease caused by vascular compression of cranial nerve. Comprehensive preoperative evaluation, skillful operational technique and intraoperative electrophysiological monitoring should be implemented to enhance the therapeutic effects of MVD and to prevent possible compl ications.

    Release date:2016-09-01 09:17 Export PDF Favorites Scan
  • Brain Stem Cavernous Hemangioma: Clinical Manifestations and Prognostic Analysis

    【摘要】 目的 探讨脑干海绵状血管瘤患者临床表现及影响预后的相关因素。 方法 回顾分析2008年9月-2010年9月27例脑干海绵状血管瘤患者临床资料。 结果 20例(74.1%)患者CT显示出血及血肿。急性或突然神经功能废损22例,渐进性功能障碍15例,病情平稳4例。显微手术12例,放射治疗6例,保守观察9例。长期随访25例,2例再次出血,无新发病灶,无患者死亡。手术组患者年龄(Plt;0.05)、术前病情严重程度(Plt;0.05)与术后KPS评分相关。非手术组不良预后评分与患者高龄及再出血有关。 结论 展神经麻痹和面瘫患者功能恢复较差。年龄、术前病情严重程度及手术时机影响患者预后,术中全切病灶对复发和并发症发生起主要作用,如何处理合并发生的静脉畸形有待讨论。立体定向放射治疗明显降低再出血风险,但其适应证尚有争议。【Abstract】 Objective To discuss the clinical manifestations and prognostic factors of brain stem cavernous hemangioma. Methods Based on the literature, the clinical data of 27 patients having brain stem cavernous hemangioma from September 2008 to September 2010 were reviewed and analyzed. Results Twenty patients (74.1%) presented with hemorrhage and hematoma in CT scan. Acute or sudden neurological deterioration occurred to 22 patients, progressive in 15 and stable in 4. Twelve patients underwent surgical removal of the lesion; 6 underwent radiosurgery; and 9 continued with conservative management. Twenty-five patients were followed up. Two patients had rehaemorrhagia. There were no de novo lesions or death. The risk factors indicative of a possible poor postoperative KPS score in the operative group included age (Plt;0.05) and the initial clinical condition (Plt;0.05). In the non-operative group, old age and rehaemorrhagia were obviously related to the poor outcome. Conclusions Patients with abducens and facial palsy have poor functional recovery. Age, the initial clinical condition and timing of operation are the major factors correlated to surgical outcome. The factor that affects recurrence and the occurrence of complications is complete resection during the operation. How to deal with the concomitant venous malformation should be further studied. The indications for stereotactic radiosurgery are still controversial, although it has confered a reduction in the risk of rehaemorrhagia.

    Release date:2016-09-08 09:24 Export PDF Favorites Scan
  • Intraoperative Neurophysiological Monitoring During Microsurgery for Solid Medullary Hemangioblastoma

    目的 探讨显微切除延髓实体性血管母细胞瘤术中电生理监测的意义。 方法 2007年7月-2009年8月,在电生理监测下显微切除13例延髓实体性血管母细胞瘤,观察切除程度、死亡率及术后脑干功能,并对电生理监测下的手术技巧进行讨论总结。 结果 完全切除13例延髓实体性血管母细胞瘤,术后因呼吸功能衰竭死亡1例,6个月脑干机能状态较术前保持或改进10例。 结论 延髓实体性血管母细胞瘤切除术中行神经电生理监测有助于提高手术效果,改善预后。

    Release date:2016-09-08 09:49 Export PDF Favorites Scan
  • The effect of full-time teaching position in clinician education

    As the intensity of clinical and research work is high, teaching is gradually paid less attention to and the quality of education cannot be ensured. In this context, a full-time teaching position is set up in West China Hospital which is taken responsibility by qualified clinicians, to improve the teaching quality by strict management and omni-directional teaching. We introduce the setting and running of the full-time teaching position in West China Hospital in this paper.

    Release date:2017-09-15 11:24 Export PDF Favorites Scan
  • The changes of intraoperative temperature and risk factors of prognosis of patients undergoing clipping of posterior communicating artery aneurysms

    ObjectiveTo explore the changes of intraoperative temperature and influencing factors of the short-term prognosis of patients undergoing clipping of posterior communicating artery aneurysms.MethodsThe basic clinic data and intraoperative temperature of patients undergoing elective clipping of posterior communicating artery aneurysms between October 2018 and July 2019 were collected, and the minimum intraoperative temperature was categorized into ≥36.0 and <37.5℃, ≥35.0 and <36.0℃, and <35.0℃. According to the Glasgow outcome scale (GOS) at discharge, the patients were divided into good prognosis group (GOS 4-5) and bad prognosis group (GOS 1-3). Multiple logistic regression analysis was used to obtain the risk factors of short-term prognosis.ResultsA total of 127 cases were involved, and intraoperative hypothermia (<36.0℃) occurred in 64 cases (50.4%). The intraoperative temperature presented classical three-phrase changes, i.e. it dropped rapidly at 1 hour after anesthesia introduction, decreased slowly during 2-3 hours after anesthesia introduction, and then entered the plateau. In the 127 cases, 93 (73.2%) had good prognosis, with an intraoperative hypothermia proportion of 44.1% (41/93); and 34 (26.8%) had bad prognosis, with an intraoperative hypothermia proportion of 67.6% (23/34). Univariate analysis showed that Hunt-Hess grade (χ2=18.999, P<0.001), intraoperative bleeding (χ2=7.074, P=0.008), minimum intraoperative temperature (Z=−3.473, P=0.001), and postoperative complications (χ2=43.060, P<0.001) were related to the short-term prognosis of patients undergoing clipping of posterior communicating artery aneurysms. Multiple logistic regression analysis presented that high Hunt-Hess grade (Ⅳ, Ⅴ) [odds ratio (OR)=6.456, 95% confidence interval (CI) (1.141, 36.532), P=0.035], the minimum intraoperative temperature <35.0℃ [OR=7.552, 95%CI (1.450, 39.345), P=0.016], and postoperative complications [OR=22.866, 95%CI (6.778, 77.142), P<0.001] were independent risk factors of the short-term prognosis. The difference in short-term prognosis between patients with the minimum intraoperative temperature ≥35.0 and <36.0℃ and the ones with the minimum intraoperative temperature ≥36.0 and <37.5℃ was not statistically significant (P>0.05).ConclusionsThe minimum intraoperative temperature<35.0℃ and postoperative complications were changeable factors to effect progonosis of patients undergoing elective clipping of posterior communicating artery aneurysms. Clinical staff should set medical intervention measures based on the individual conditions of patients to improve patients’ quality of life.

    Release date:2020-04-23 06:56 Export PDF Favorites Scan
  • DIAGNOSIS AND TREATMENT OF MALIGNANT MELANOMA IN CENTRAL NERVOUS SYSTEM

    Objective To investigate the cl inical features of mal ignant melanoma (MM) in the central nervous system (CNS) and to improve the diagnosis and treatment of this disease. Methods Seven MM-in-CNS patients’ records between September 1996 and April 2007 were analyzed retrospectively, including 6 males and 1 female aged 18-74 years. The 5 cases were located in the supra-tentorial area, 1 in the spinal cord and 1 in the whole brain. CT or MRI scan was appl ied. The lesion was in the right frontal area in 4 cases, in the right temporal are in 1 case, in the left temporal area in 1 case, in the left apex area in 1 case and in the cervical spinal cord of C5-7 in 1 case. Six patients underwent neurosurgical operation and1 patient received the Gamma Knife therapy. The pathological examination revealed that 2 cases were metastatic MM and 5 were primary. Results One patient with primary MM received no follow-up, and the rest 6 patients were followed up for 2 weeks to 2 years with the time of median 8 months. One patient with metastatic MM died 2 months after operation, 1 patient to with metastatic MM died 2 weeks after Gamma-Knife treatment, 1 patient with metastatic MM with primary MM died 2 years after operation, and 3 patients with primary MM were still al ive and self-independent 6, 10 and 24 months after operation, respecti vely. Conclusion Since MM-in-CNS is short of specificity in cl inical symptoms and signs, its diagnosis mainly rel ies on the pathological examination and is assisted by MRI. The combined therapy giving priority to operation is recommended.

    Release date:2016-09-01 09:18 Export PDF Favorites Scan
  • Discussion of the Treatment of 256 Cases of Craniocerebral Injury by Earthquake in a Frontier Third-class First-grade Hospital

    Objective To discuss the treatment of craniocerebral injuries caused by earthquake. Methods Retrospective analysis of clinical information for 256 patients with craniocerebral injury caused by an earthquake. Results The ‘Classification and Treatment’ was applied to the patients, whether or not they were operated on. A total of 146 patients were cured, 68 improved, 24 remained dependent on the care of others, and 8 died. The mortality rate was 3.13%. Conclusion  Applying the ‘Classification and Treatment’ to patients with craniocerebral injury following an earthquake supported the use of medical resources and was associated with a low rate of death and disability.

    Release date:2016-09-07 02:09 Export PDF Favorites Scan
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