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1.
Humans must maintain head and trunk stability while walking. The purpose of this study was to compare the kinematics of healthy controls and patients with vestibular hypofunction (VH) when walking and making head rotations of different frequencies in both light and dark conditions. We recruited eight individuals with VH and nine healthy control subjects to perform four tasks at their preferred gait speed, being normal walk, walking and making yaw head rotations at 1.5 Hz and 2 Hz, and walking in the dark and making yaw head rotations at 1.5 Hz. Linear kinematics as well as head, trunk, and pelvis angular velocities were captured using the Vicon motion analysis system (Vicon Motion Systems, Oxford, UK). We found no difference in walking velocities for any of the four walking conditions across groups. The lateral displacement of the center of mass was increased in VH patients. In the dark, patients had more head instability in pitch (larger amplitudes and velocities) even though they were walking and making active yaw head rotations. Patients also had a smaller relative phase angle (mean 3.50 ± standard deviation 2.13°) than controls (mean 10.31 ± standard deviation 2.70°) (p < 0.01). Our data suggest that patients with VH have difficulty walking with a straight trajectory when turning their head. Additionally, patients with VH have an abnormal excursion of spontaneous pitch head rotation while walking and making active yaw head turns, which is dependent on vision. Rehabilitation for these patients should consider applying unique head rotation frequencies when training gait with head turns as well as alternating their exposure to light. 相似文献
2.
Leptomeningeal carcinomatosis (LMC) is a rare complication of cancer that often presents at an advanced stage after obvious metastasis of a primary cancer or locally advanced disease. We present an uncommon case of LMC secondary to pancreatic carcinoma presenting with headache, unilateral VII nerve palsy, and lower extremity weakness. Initial cerebrospinal fluid (CSF) studies were concerning for chronic aseptic meningitis but negative for malignant cells; the diagnosis of tuberculous meningitis was erroneously evoked. Three lumbar punctures were required to capture malignant cells. The diagnosis of LMC was based on CSF examination with cytology/immunohistochemistry and leptomeningeal enhancement on MRI. Post mortem autopsy revealed advanced and diffusely metastatic pancreatic adenocarcinoma. This patient demonstrates that solid tumors can present with leptomeningeal spread that often confuses the treating physician. Fungal or tuberculous meningitis can mimic LMC in the absence of neoplastic signs and negative CSF cytology. This event is exceedingly rare in pancreatic cancer. If the index of suspicion is high, repeat CSF sampling can increase the sensitivity of detection of malignant cells and thus result in the correct diagnosis. 相似文献
3.
Osteoradionecrosis is a known complication following radiation therapy, presenting most commonly in the cervical spine as a delayed consequence of radiation that is often necessary in the management of head and neck cancers. In contrast, osteoradionecrosis has rarely been described in the lumbar spine. Here we describe, to our knowledge, the first reported case of lumbar spine osteoradionecrosis, after adjuvant radiation for a primary spinal cord tumor, leading to progressive degenerative scoliosis which required subsequent operative management. Established guidelines recommend that mature bone can tolerate a dose of up to 6000 cGy without injury. However, once bone has been exposed to radiation over this level progressive soft tissue changes may lead to devascularization, leaving the bone vulnerable to osteonecrosis, specifically when manipulated. Radiation necrosis can be progressive and lead to eventual mechanical instability requiring debridement and surgical fixation. In the setting of the lumbar spine, osseous necrosis can lead to biomechanical instability, deformity, pain, and neurologic deficit. 相似文献
4.
目的探讨骨髓增生异常综合征(myelodysplastic syndromes,MDS)患者ASXL1基因变异的发生情况及其与其他基因变异和部分临床参数之间的相关性。方法采用PCR扩增产物直接测序法检测149例MDS患者ASXU、U2AF1、SF3B1、DNMT3A、TET2、IDH1/2、NPM1、FLT3-ITD.C-KIT等基因的变异情况。结果在149例患者中,ASXU基因变异的检出率为24.8%(37/149),变异率>5%的基因分别是U2AF1(22.8%)、TET2(11.4%)、DNMT3A(9.4%)、NPM1(8.1%).SF3B1(6.0%)。ASXL1变异最常见的共存变异基因为U2AF1(27.0%,10/37)及TET2(18.9%,7/37)。ASXL1变异组与野生组患者在中位年龄、MDS亚型、染色体核型、外周白细胞、血红蛋白、血小板水平及骨髓原始细胞计数等方面的差异均无统计学意义(P>0.05)o对29例ASXL1变异患者进行了有效的随访,其中11例进展为急性髓系白血病(acute myeloid leukemia,AML),白血病转化率为37.9%。在92例野生型患者中,13例进展为AML,白血病转化率为14.1%。ASXL1变异组白血病转化率明显高于野生组,差异有统计学意义(PV 0.01)。结论ASXL1变异在MDS中有较高的发生率,并常与U2AF1及TET2基因变异共存,伴有该变异的患者具有更高的白血病转化率。 相似文献
5.
我院2005~2007年住院患者麻醉性镇痛药应用分析 总被引:1,自引:0,他引:1
目的:了解麻醉性镇痛药的应用情况及趋势。方法:对我院2005-2007年住院患者麻醉性镇痛药的应用金额、用量、用药频度等进行统计、分析。结果:我院住院患者麻醉性镇痛药应用金额和用量每年上升。枸橼酸芬太尼注射液用量居首位;盐酸哌替啶注射液用量呈逐年下降趋势。结论:枸橼酸芬太尼注射液、注射用盐酸瑞芬太尼和硫酸吗啡缓释片已成为我院麻醉性镇痛药应用主流,应用的合理性有待提高。 相似文献
6.
Paraneoplastic syndrome presenting with progressive supranuclear palsy (PSP) phenotype is extremely rare. We report a patient who presented with features of rapidly progressive parkinsonism similar to PSP and was found to have small cell carcinoma of the lung along with seropositivity for onconeural antigen. The patient was treated with immunomodulation and was given chemotherapy for the malignancy and subsequently improved. 相似文献
7.
Yin Cao Quan-Di Zhao Li-Jun Hu Zhi-Qin Sun Su-Ping Sun Wen-Wei Yun Yong-Gui Yuan 《World journal of gastroenterology : WJG》2013,19(19):2969-2973
AIM:To characterize the two components of theory of mind(ToM) in patients with esophageal cancer combined with depression.METHODS:Sixty-five patients with esophageal cancer combined with depression(depressed group) and 62 normal controls(control group) were assessed using reading the mind in the eyes test,faux pas task,verbal fluency test,digit span test and WAIS IQ test.The depressed group was divided into two subgroups including psychotic depressed(PD) group(32 cases) and nonpsychotic depressed(NPD) group(33 cases).The clinical symptoms of patients were assessed using Beck depression inventory version Ⅱ and brief psychiatric reacting scale(BPRS).RESULTS:There was a significant difference between the depressed group and the control group on tasks involving ToM social perceptual components(mind reading:t = 7.39,P < 0.01) and tests involving ToM social cognitive components(faux pas questions:t = 13.75,P < 0.01),respectively.A significant difference was also found among the PD group,the NPD group and the control group on mind reading(F = 32.98,P < 0.01) and faux pas questions(χ 2 = 78.15,P < 0.01),respectively.The PD group and NPD group performed worse than normal group controls both on mind reading and faux pas questions(P < 0.05).The PD group performed significantly worse than the NPD group on tasks involving ToM(mind reading:F = 18.99,P < 0.01;faux pas questions:F = 36.01,P < 0.01).In the depressed group,there was a negative correlation between ToM performances and BPRS total score(mind reading:r =-0.35,P < 0.01;faux pas questions:r =-0.51,P < 0.01),and between ToM performances and hostile suspiciousness factor score(mind reading:r =-0.75,P < 0.01;faux pas questions:r =-0.73,P < 0.01),respectively.CONCLUSION:The two components of ToM are both impaired in patients with esophageal cancer combined with depression.This indicates that there may be an association between ToM deficits and psychotic symptoms in clinical depression. 相似文献
8.
目的探讨平板数字减影血管造影(DSA)在下肢静脉造影诊断下肢静脉病变中的应用价值。方法回顾性分析行平板DSA下肢静脉造影的126例(154侧肢体)患者的临床资料。结果正常下肢静脉10例(7.9%),深静脉血栓形成15例(11.9%),髂静脉压迫综合征6例(4.8%),交通静脉瓣膜功能不全45例(35.7%),深静脉瓣膜功能不全50例(39.7%),各种病变均有特征性的造影表现,易于区别,且均无不良反应。结论采用平板DSA进行下肢静脉造影能够清晰显示下肢静脉病变,对于诊断下肢静脉病变具有重要的临床意义与应用价值。 相似文献
9.
Aiping Zhu Mingjie Wang Guoxin Zhou Hui Zhang Ruiping Liu Yong Wang 《Rheumatology international》2016,36(6):807-818
Apoptosis signals are necessary for maintaining homeostasis and an adequate immune response. Dysregulation of apoptosis-related genes in the immune system has an important impact on autoimmune diseases such as rheumatoid arthritis (RA). Thus, we investigated the association between Fas rs2234767 G/A, FasL rs763110 C/T, Bcl2 rs12454712 T/C, Bcl2 rs17757541 C/G, and Caspase-8 rs1035142 G/T polymorphisms and RA susceptibility in a Chinese population. These five single-nucleotide polymorphisms (SNPs) were studied in a Chinese population consisting of 615 patients with RA and 839 controls. Genotyping was performed using a custom-by-design 48-Plex SNP scan TM kit. Furthermore, we undertook a meta-analysis between FasL rs763110 C/T and RA. This study indicated that Fas rs2234767 and Bcl2 rs17757541 polymorphisms were risk factors for RA. No association was observed between FasL rs763110 C/T, Bcl2 rs12454712 T/C, and Caspase-8 rs1035142 G/T polymorphisms and RA in this study. The results of this meta-analysis suggested no significant association between FasL rs763110 C/T and RA. However, stratification analysis of this meta-analysis indicated that FasL rs763110 C/T increased the risk of Caucasian RA patients. In conclusion, this study demonstrated that Fas rs2234767 G/A and Bcl2 rs17757541 T/C polymorphisms might be associated with an increased risk of RA. This meta-analysis revealed that FasL rs763110 C/T was associated with an increased risk of Caucasian RA patients. 相似文献
10.
目的研究卵泡抑素样蛋白1(FSTL1)与类风湿关节炎(RA)活动度的相关性。方法 20例RA患者纳入观察组,20例非RA患者纳入对照组。用酶联免疫吸附试验(ELISA)法测定20例RA患者治疗前后的血清FSTL1水平;魏氏法测定患者治疗前红细胞沉降率(ESR),免疫透射比浊测定C反应蛋白(CRP)、类风湿因子(RF)水平,抗环瓜氨酸肽(CCP)抗体酶联免疫试剂盒检测抗CCP抗体,并进行疾病活动指数28(DAS28)评分。用免疫印迹法测定两组被试成纤维样滑膜细胞(FLSs)中FSTL1的水平。结果观察组患者血清FSTL1水平与ESR、CRP、RF、抗CCP抗体及DAS28呈较好的相关性(P<0.05);观察组关节组织FSTL1蛋白相对表达量明显高于对照组(P<0.05);观察组治疗后,血清FSTL1水平明显低于治疗前(P<0.05)。结论 FSTL1可作为RA患者疾病活动度的新炎性标志物。 相似文献