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1.
目的:通过研究脑膜瘤的MRI表现,探讨脑膜瘤瘤周水肿(peritumoral brain edema,PTBE)与脑膜瘤部位的关系.方法:对106例行MRI检查的脑膜瘤患者进行回顾性研究.分析脑膜瘤位置,测量脑膜瘤体积及PTBE体积,计算水肿指数(edema index,EI),并对PTBE形状进行分类,采用SPSS1...  相似文献   

2.
目的:回顾性分析前颅窝脑膜瘤伴瘤周水肿的临床特征,探讨术前、术中及术后的治疗经验。方法:分析我科前颅窝脑膜瘤伴有瘤周水肿9例临床资料,肿瘤位于:蝶骨嵴4例,前颅窝底及嗅沟5例。年龄37-68岁,平均52岁。结果:术后病理:WHO-Ⅰ级6例(66.7%),WHO-Ⅱ级2例(22.2%),WHO-Ⅲ级1例(11.1%)。9例术后脑水肿加重5例(55.6%),60岁以上老年患者发生率达3例(60%),2例因发生恶性脑水肿死亡。结论:术前充分告知和手术预案及手术路径的选择,术中对动、静脉血管尤其Heubner回返动脉的识别、保护是预防术后脑水肿加重的必需和有效措施。术后严密观察和细致护理,脱水药的应用,甚至及时的再次手术可提高此类患者手术的安全性,降低术后并发症的发生率和死亡率。  相似文献   

3.
脑膜瘤瘤周水肿与手术预后的关系   总被引:2,自引:1,他引:2  
陈新治  张建军  司赟  赵沃华  赵洪洋 《浙江医学》2006,28(5):343-344,348
目的探讨脑膜瘤瘤周水肿程度与手术预后的关系.方法对92例脑膜瘤术前瘤周水肿程度与术中肿瘤分离难易程度、术后病理组织学分类及复发率进行统计学对比分析.结果血管瘤型脑膜瘤、恶性及低度恶性脑膜瘤瘤周中、重度水肿发生率明显高于其它类型脑膜瘤(P<0.01);脑膜瘤周围水肿越严重,术中脑膜瘤的分离难度越大(P<0.01),同时复发率也较高(P<0.05).结论脑膜瘤周围水肿程度与手术预后密切相关,可作为判断预后的一个重要指标.  相似文献   

4.
回顾性分析 6 5例脑膜瘤临床表现 ,病理资料 ,生长速率与瘤周水肿相关性。结果 :发现伴有瘤周水肿者 ,病程进展迅速 ,临床症状明显发生率随着水肿加重而增加 ;不同的病理类型产生水肿程度不一样 ;肿瘤位于中颅窝、矢状窦旁、大脑凸面、大脑镰、嗅沟、蝶骨嵴外侧易产生瘤周水肿。结论 :脑膜瘤的临床特征与瘤周水肿有相互关系  相似文献   

5.
脑膜瘤瘤周水肿形成机制的研究进展   总被引:3,自引:1,他引:2  
临床观察脑膜瘤中有60%左右出现瘤周水肿(peritumoralbrain edema.PTBE)[1].PEBE增加了肿瘤的占位效应,破坏了血脑屏障,引起了持久的弥散性颅内压增高,加重了已有的临床症状,使脑膜瘤患者术后治疗时间延长,并增加了术后并发症.PEBE与脑膜瘤的大小、位置、组织学类型有一定关系[1],最近研究发现脑膜瘤与正常脑组织之间的接触面的形态变化以及水动力学等理化因素也与PEBE形成相关.  相似文献   

6.
根据国内外关于脑膜瘤瘤周水肿(PTBE)相关文献的报道, PTBE 的发生机理一直存在争议,近年来随着现代影像学技术的发展及广泛应用于临床,生化、免疫分子技术的提高,对 PTBE 的机理研究取得了很大的进展。  相似文献   

7.
目的评估氢质子磁共振波谱(~1H-MRS)在颅脑常见肿瘤诊断及鉴别诊断中的应用价值。方法分析经手术病理证实的61例颅内高级别胶质瘤、转移瘤及脑膜瘤三组病例~1H-MRS特点,并测量所有病例的瘤核心、瘤周水肿区、对侧正常脑白质感兴趣区的胆碱(Cho)、乙酰天门冬氨酸(NAA)、肌酸(Cr)代谢产物的峰值,计算Cho/NAA、Cho/Cr、NAA/Cr三种参数的比值,分别比较三组病例各参数之间的差异。结果三类肿瘤瘤核心及胶质瘤瘤旁水肿Cho/Cr、Cho/NAA均大于对侧正常脑白质(P0.01),NAA/Cr均小于对侧正常脑白质(P0.01),脑膜瘤瘤核心NAA/Cr比胶质瘤、转移瘤明显减低(P0.01),Cho/NAA比胶质瘤、转移瘤明显增高(P0.01);胶质瘤瘤旁区Cho/Cr、Cho/NAA比脑膜瘤、转移瘤明显增高(P0.01),NAA/Cr比脑膜瘤、转移瘤明显减低(P0.01)。结论作为常规MRI的有力补充,瘤核心及瘤周水肿区的~1H-MRS对颅内胶质瘤、脑膜瘤及转移瘤的诊断及鉴别诊断具有积极的临床意义。  相似文献   

8.
目的分析弥散加权成像之中,ADC值诊断、鉴别良恶性脑膜瘤的临床应用价值。方法随机选择2011年5月至2016年5月间在我院经DWI检查以及手术病理证实为脑膜瘤患者120例,作为本次研究对象,采用Philip achieva 1.5TMR扫描仪,弥散加权b值为1000s/m2,比较对侧常规脑白质ADC值与病灶实质区域ADC值,计算出r ADC值。结果经过分析研究发现,恶性与良性脑膜瘤,在rADC值方面,数据对比具有统计学意义(P0.05)。脑膜瘤病理分型方面,血管瘤型脑膜瘤的实质区域的r ADC值显著高于其他病理分型的脑膜瘤,数据对比差异显著(P0.05),且纤维型、血管瘤型以及脑膜皮细胞的rADC值明显高于间变型脑膜瘤,数据对比差异显著(P0.05),对比非典型、纤维型以及脑膜皮细胞的rADC值方面,发现无差异统计学意义(P0.05),间变型的瘤周水肿r ADC值明显高于纤维型瘤周水肿rADC值(P0.05),其他病理分型的瘤周水肿rADC值对比发现,无显著差异(P0.05)。结论肿瘤实质区域的rADC值在鉴别、诊断良恶性脑膜瘤、脑膜瘤病理分型方面,具有较高的临床应用价值,于间变型脑膜瘤而言,瘤周水肿r ADC值鉴别、诊断价值较高,术前评价脑膜瘤的DWI技术,其临床实践意义非常重大。  相似文献   

9.
周军格  邱勇  岑波 《实用医技杂志》2014,(11):1231-1233
<正>脑膜瘤是发生于脑膜细胞的良性肿瘤,因其发病率较高,手术切除后常复发,甚至引起死亡。瘤周水肿是脑膜瘤的一种继发病理改变,发生率约为60%[1]。瘤周水肿加重了瘤体占位效应,破坏了血脑屏障,并引起持久弥散性颅内压增高,使脑膜瘤患者术后治疗时间延长,其存在及程度直接影响临床治疗方案及预后。然而瘤周水肿发生机制复杂,目前尚未完全阐明。本研究观察了不同肿瘤体积、部位、病理类型脑膜瘤瘤周水肿发生情况,现报告如下。  相似文献   

10.
血管内皮生长因子与脑膜瘤瘤周水肿的关系   总被引:10,自引:1,他引:9  
Jiang Z  Zhao J 《中华医学杂志》2002,82(16):1115-1117
目的 探讨脑膜瘤血管内皮生长因子 (VEGF)表达与肿瘤血管生成和瘤周脑水肿的关系。方法 采用免疫组织化学技术检测 40例脑膜瘤VEGF表达和微血管密度 ,用双盲法对染色结果及术前MRI和脑血管造影资料进行评估。结果 VEGF表达强阳性组与表达阴性组相比 ,水肿指数(EI =4 6与EI=1 5 ,P =0 0 0 3) ,脑水肿发生率 (88 2 %与 41 7% ,P =0 0 2 3 68)、微血管密度 (MVD =53 0与MVD =2 6 5 ,P =0 0 1 8)的差异均有显著意义 ;有软膜供血组与无软膜供血组相比水肿指数差异有显著意义 (EI=4 4与EI=1 8,P =0 0 4 4 ) ;肿瘤与脑组织重度粘连组较轻度粘连的脑水肿发生率差异有显著意义 (88 9%与 45 5 % ,P =0 0 0 4 1 7) ;肿瘤大小与水肿指数无相关关系 (r =0 2 64 ,P >0 0 5)。结论 脑膜瘤的VEGF表达、肿瘤血管生成及瘤周脑水肿形成之间有重要关系 ;VEGF能促进脑膜瘤的肿瘤血管生成及瘤周脑水肿的形成 ;肿瘤有软膜供血的、与脑组织粘连严重的脑水肿发生率高 ;肿瘤大小与脑水肿程度无相关关系  相似文献   

11.
Objective: To evaluatel the value of D-dimers in patients with acute aortic dissection (AAD). Methods: This study consisted of 16 patients with AAD and 27 non-AAD patients. Serum D-dimets were measured by Sta-Liatest D-DI immunoturbidimetric assay. Results: D-dimer level was higher (P < 0.001) in patients with AAD(7.91 ± 5.52 μg/ml) than that in non- AAD group(1.57±1.24 μg/ml). D-dimer was positive (>0.4 μg/ml) in all patients with AAD and in 10 control group patients (37%). Among patients with acute AAD, D-dimers tended to be higher in Stanford A than in Stanford B (8.67 ± 4.31 μg/ml vs. 3.24±1.27 μg/ml, P <0.01). D-dimer values tended to be higher in more extended disease(3.84 ± 1.65 μg/ml, 8.57 ± 3.58 μg/ml and 11.87 ± 5.69 μg/ml in thoracic aorta, thoracic and abdominal aorta, thoracic and abdominal aorta and iliacal arteries, respectively, P < 0.05 for both 8.57 ± 3.58 and 11.87 ± 5.69 vs. 3.84 ± 1.65 ). Including the control group into the analysis, we found a sensitivity of 100%, a negative predictive value of 100%, and a specificity of 66% and a positive predictive value of 64% for D-dimer in diagnosis of AAD in our patients with suspected AAD. Conclusion: D-dimer was elevated in patients with AAD. A negative D-dimer test result could be useful in excluding AAD.  相似文献   

12.
Objective: To set up a simple and reliable rat model of combined liver-kidney transplantation. Methods: SD rats served as both donors and recipients. 4℃ sodium lactate Ringer's was infused from portal veins to donated livers,and from abdominal aorta to donated kidneys, respectively. Anastomosis of the portal vein and the inferior vena cava (IVC) inferior to the right kidney between the graft and the recipient was performed by a double cuff method, then the superior hepatic vena cava with suture. A patch of donated renal artery was anastomosed to the recipient abdominal aorta. The urethra and bile duct were reconstructed with a simple inside bracket. Results: Among 65 cases of combined liver-kidney transplantation, the success rate in the late 40 cases was 77.5%. The function of the grafted liver and kidney remained normal. Conclusion: This rat model of combined liver-kidney transplantation can be established in common laboratory conditions with high success rate and meet the needs of renal transplantation experiment.  相似文献   

13.
Objective To observe blood pressure change with age in salt-sensitive teenagers whose salt sensitivity were determined by repeated testing.Methods Salt sensitivity was determined through intravenous infusion of normal saline combined with volume-depletion by oral diuretic furosemide in 55 teenagers. After five years, salt sensitivity was re-examined and subject blood pressure was followed up. Blood pressure changes in salt-sensitive teenagers were compared to that of non-salt sensitive teenagers over five years.Results After 5 years, the repetition rate of salt sensitivity determined by intravenous saline loading is 92.7%. In teenagers with salt sensitivity on the baseline, both the systolic blood pressure increments and increment rates were much higher than non-salt sensitive teenagers (12.7±12.1 mmHg vs. 2.8±5.2 mmHg, P< 0.01; 12.2%± 12.0% vs. 2.5% ±4.4%, P< 0.001,respectively). There was a similar trend for diastolic blood pressure (8.4 ± 6.4 mmHg vs. 3.7 ± 6.4 mmHg, P = 0.052; 13.2% ±10.6 % vs. 6.8%± 10.1%, P = 0.053, respectively).Conclusions Salt sensitivity determined by intravenous saline loading showed good reproducibility. Blood pressure increments with age were much higher in salt-sensitive teenagers than non-salt sensitive teenagers, especially in terms of systolic blood pressure.  相似文献   

14.
目的:评价使用安心颗粒对急诊经皮冠状动脉介入术(PPCI)术后生活质量的影响.方法:将160例接受PPCI的急性ST段抬高型心肌梗死患者随机分为安心颗粒组(术前顿服安心颗粒8.8g,术后安心颗粒4.4 g/次,每日2次)和对照组(仅接受基础药物治疗).所有患者均服用阿司匹林、氯吡格雷和阿托伐他汀.分别在入院时、出院前1d、出院后180 d时,应用心肌梗死多维度量表(MIDAS)、中文版SF-36评价量表对患者生活质量评分.并观察术后30 d以内的出血并发症、血小板减少症发生情况.结果:入院时和出院前1d,两组患者的心肌梗死MIDAS、SF-36量表评分比较无差异(P>0.05);出院后180 d时,与对照组比较,安心颗粒组MIDAS、SF-36评分明显减低(P<0.05);组内与入院时比较,两组出院前1d、出院后180 d时,MIDAS、SF-36评分均降低(P<0.05).两组患者在随访期间均无大量出血、少量出血、重度和极重度血小板减少症发生,安心颗粒组有4例、对照组有7例发生不明显出血(P>0.05).两组发生轻度血小板减少症的患者数比较无差异(P>0.05).结论:PPCI使用安心颗粒,能改善急性ST段抬高型心肌梗死患者的生活质量,且不增加出血风险.  相似文献   

15.
Objective:To investigate the influences of urapidil and nicardipine on rabbit sinus function,atrio-ventricular node function and hemodynamics.Methods:Thirty-two Angora's rabbits were selected and randomly divided into four groups.U1 group:urapidil 0.25 mg/kg;U2 group:urapidil 0.5 mg/kg;N1 group:nicardipine 10 μg/kg;N2 group:nicardipine 20 μg/kg.All these medicine were administrated within 30 seconds.Measurements were taken before and after the administration of urapidil or nicardipine for the following data:mean blood pressure(MAP),heart rate(HR),sino-atrial conduction time(SACT),maximal sinoatrial recovery time(SNRTmax)corrected sinus node recovery time(CSNRT),index of sinus node recovery time(SNRTI),Wenckebach A-V conduction frequency (WB),and P-R interval.Results:Significant MAP and HR changes were identified in all of the four groups before and after administration of both urapidil and nicardipine.No significant changes could be found in the rest of the parameters.Intergroup analysis showed that SACT and CSNRT of N1 and N2 groups were shorter than those of the U2 group(P<0.01);the MAP decreased(P<0.01)and the HR increased drastically(P<0.01).Conclusions:Neither urapidil(0.25 mg/kg,0.5 mg/kg)nor nicardipine(10μg/kg,20μg/kg)has any significant influence on rabbit sinus function or rabbit atrio-ventricular node function.Nicardipine could be a better choice than urapidil for parafunctional sinus node patients.  相似文献   

16.
FOR anesthesiologis s ,treatingpostoperativepainhas alwaysbeen a problem.Althoughopioidshave been provedtobe effective,theirsideeffectscouldnotbeignored.With thedevelopmentofscienceand pharmacology,many drugs with aspectsof satisfactoryanalgesicefficacyand couldbe welltoleratedby patientshave been developed.And lornoxicamisone of them, which isa non-steroidalanti-inflammatorydrug (NSAID ), with analgesic, anti-infl-ammatory,andantipyreticproperties.Itseliminationhalf-time(3 to 5 hours) isle…  相似文献   

17.
Objective:To investigate the gene expression of osteoprotegerin(OPG) and osteoclast differentiation factor(ODF) in the bone tissue of patients with hip fracture due to osteoporosis. Methods:OPGmRNA and ODFmRNA in the bone tissue in 50 cases of osteoporosis sufferers(over 50 years old) with hip fracture(Observer Group) and 30 cases of hip facture sufferers with no osteoporosis(Control group) were analyzed with the Semi-Quantitative RT-PCR method. Results:The mRNA expressed of ODF, OPG were both high in the patients with hip fracture. In the control group, the expression of OPG mRNA was observed, while the expression of ODF mRNA was very slight. Conclusion:Aged patients contained all signals including OPG, ODF that are essential for inducing osteoclastogenesis and promoting bone resorption.  相似文献   

18.
Increasing maternal age is the only etiological factor unequivocally linked to Down's syndrome in humans. The occurrence rate of newborns with Down's syndrome is about 1/220 in women over 35 years old. However, the occurrence rate in embryos fertilized in vitro, of the elder woman is unclear. Using FISH we screened the number of chromosome 21 in preimplanted embryos of 5 elderly women (average age, 38.4 years) to study the feasibility and necessity of screening trisomy 21 in embryos in patients over 35 years old at the in vitro fertilization (IVF) center.  相似文献   

19.
Real-time three-dimensional echocardiography (RT3DE)is a new ultrasound technique that enables dynamic threedimensional visualization and quantification of the heart in real time. Investigation of feasibility and methodology of RT3DE in determining left ventricular (LV) and right ventricular (RV) volumes, RT3DE was performed in 35 normal adults using Philips SONOS 7500 system with a 2-4 MHz matrix array transducer. The 60°×60° "pyramid" volume database was obtained and analyzed on a TomTec echo workstation. Both LV and RV volumes were calculated with four 3DE methods (i.e. apical 2, 4, 8, and 16-plane) through manually tracing ventricular endocardial borders in end diastole and end systole. Stroke volumes were then calculated. LV volume was also measured by 2DE Simpson's rule using GE VIVID 7 ultrasound machine.  相似文献   

20.
A clinical guideline for the therapeutic interventions of integrative medicine may be defined as a written document which states a series of recommendations on therapeutic interventions of integrative medicine for a special disease or condition. The guideline may provide assistance to medical professionals in making clinical decisions aimed at improving the clinical outcome of patients and reducing the costs of medical care(~'4~. Recommendations issued by a guideline should be based on the best available evidence in both Western and Chinese medicine. For fulfilling this purpose, the development of clinical guidelines for therapeutic interventions in the field of integrative medicine should follow scientific principles and undergo a rigorous processes.  相似文献   

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