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991.
Tae Keun Jee Sun-Ho Lee Eun-Sang Kim Whan Eoh 《Journal of Korean Neurosurgical Society》2014,56(2):162-165
Idiopathic hypertrophic spinal pachymeningitis (IHSP) is a chronic, progressive, inflammatory disorder characterized by marked fibrosis of the spinal dura mater with unknown etiology. According to the location of the lesion, it might induce neurologic deficits by compression of spinal cord and nerve root. A 58-year old female with a 3-year history of progressive weakness in both lower extremities was referred to our institute. Spinal computed tomography (CT) scan showed an osteolytic lesion involving base of the C6 spinous process with adjacent epidural mass. Magnetic resonance imaging (MRI) revealed an epidural mass involving dorsal aspect of cervical spinal canal from C5 to C7 level, with low signal intensity on T1 and T2 weighted images and non-enhancement on T1 weighted-enhanced images. We decided to undertake surgical exploration. At the operation field, there was yellow colored, thickened fibrous tissue over the dura mater. The lesion was removed totally, and decompression of spinal cord was achieved. Symptoms improved partially after the operation. Histopathologically, fibrotic pachymeninges with scanty inflammatory cells was revealed, which was compatible with diagnosis of idiopathic hypertrophic pachymeningitis. Six months after operation, motor power grade of both lower extremities was normal on physical examination. However, the patient still complained of mild weakness in the right lower extremity. Although the nature of IHSP is generally indolent, decompressive surgery should be considered for the patient with definite or progressive neurologic symptoms in order to prevent further deterioration. In addition, IHSP can present as an osteolytic lesion. Differential diagnosis with neoplastic disease, including giant cell tumor, is important. 相似文献
992.
Objective
The purpose of this study was to evaluate the differences in sagittal spinopelvic alignment between lumbar degenerative spondylolisthesis (DSPL) and degenerative spinal stenosis (DSS).Methods
Seventy patients with DSPL and 72 patients with DSS who were treated with lumbar interbody fusion surgery were included in this study. The following spinopelvic parameters were measured on whole spine lateral radiographs in a standing position : pelvic incidence (PI), pelvic tilt (PT), sacral slope (SS), lumbar lordosis angle (LL), L4-S1 segmental lumbar angle (SLL), thoracic kyphosis (TK), and sagittal vertical axis from the C7 plumb line (SVA). Two groups were subdivided by SVA value, respectively. Normal SVA subgroup and positive SVA subgroup were divided as SVA value (<50 mm and ≥50 mm). Spinopelvic parameters/PI ratios were assessed and compared between the groups.Results
The PI of DSPL was significantly greater than that of DSS (p=0.000). The SVA of DSPL was significantly greater than that of DSS (p=0.001). In sub-group analysis between the positive (34.3%) and normal SVA (65.7%), there were significant differences in LL/PI and SLL/PI (p<0.05) in the DSPL group. In sub-group analysis between the positive (12.5%) and normal SVA (87.5%), there were significant differences in PT/PI, SS/PI, LL/PI and SLL/PI ratios (p<0.05) in the DSS group.Conclusion
Patients with lumbar degenerative spondylolisthesis have the propensity for sagittal imbalance and higher pelvic incidence compared with those with degenerative spinal stenosis. Sagittal imbalance in patients with DSPL is significantly correlated with the loss of lumbar lordosis, especially loss of segmental lumbar lordosis. 相似文献993.
994.
Sung Woon Oh Tae Keun Jee Doo-Sik Kong Do-Hyun Nam Jung-Il Lee Ho Jun Seol 《Acta neurochirurgica》2014,156(4):641-651
Background
Glioblastoma (GBM) is the most life-threatening primary brain tumour. Especially in elderly patients, a poorer outcome is noticeable. Until now, the effectiveness of the conventional active treatment has been controversial. The purpose of this study is to find the optimal treatment for elderly patients with newly diagnosed GBM.Method
The authors retrospectively reviewed 301 patients who were diagnosed with GBM at a single centre from January 2006 to December 2010. All patients were divided into younger and elderly groups based on the cut-off age of 65 years, and the treatment outcome was analysed.Results
Of 301 patients, 67 (23.3 %) patients were 65 years old or older, and 234 (77.7 %) patients were younger than 65 years. In the elderly group, 49 patients received surgical resection and 18 patients received biopsy. Forty-seven patients (70.1 %) underwent concomitant chemoradiotherapy (CCRT) and 38 patients (56.7 %) underwent adjuvant temozolomide (TMZ) chemotherapy. The median overall survival (OS) of elderly patients was 12.0 months and the progression-free survival (PFS) was 8.5 months. The median OS of elderly patients who underwent CCRT and adjuvant TMZ chemotherapy increased to 16.2 months. On the multivariate analysis, tumour infiltration (p?=?0.005), and resection (p?=?0.001) were significant independent prognostic factors in elderly patients. The grade 3 or 4 complication rate was not statistically different between the younger group (n?=?22, 9.4 %) and the elderly group (n?=?8, 12 %).Conclusion
Elderly patients diagnosed with GBM had a survival benefit and a low complication rate with the conventional treatment. Therefore, elderly patients should be encouraged to receive the conventional active treatment. 相似文献995.
Bum-Joon Kim Kyung-Jae Park Dong-Hyuk Park Dong-Jun Lim Taek-Hyun Kwon Yong-Gu Chung Shin-Hyuk Kang 《Acta neurochirurgica》2014,156(8):1605-1613
Background
Although the majority of patients with minimal acute subdural hematomas (aSDHs) can be managed conservatively, some require delayed aSDH evacuation due to hematoma enlargement. This study was designed to determine the risk factors associated with delayed hematoma enlargement leading to surgery in patients with aSDHs who did not initially require surgical intervention.Methods
From 2002 to 2012, 98 patients were treated for nonoperative aSDHs following mild head injury (Glasgow Coma Scale scores of 13–15). The outcome variables were radiographic evidence of SDH enlargement on serially obtained computed tomography (CT) images and later surgical evacuation. Univariate and multivariate analyses were applied to both the demographic and initial radiographic features to identify risk factors for SDH progression and surgery.Results
Overall, 64 patients (65 %) revealed minimal SDH or spontaneous hematoma resolution (conservative group) with conservative management at their last follow-up CT scan. The remaining 34 patients (35 %) received delayed hematoma evacuation (delayed surgery group) a median of 17 days after the head trauma. There were no significant differences between the two groups for baseline characteristics, including age, injury type, degree of brain atrophy, prior history of antithrombotic drugs, and coagulopathy. The presence of cerebral contusions and subarachnoid hemorrhages was more common in the conservative group (p?=?0.003 and p?=?0.003, respectively). On multivariate analysis, hematoma volume (p?=?0.01, odds ratio [OR]?=?1.094, 95 % confidence interval [CI]?=?1.021–1.173) and degree of midline shift (p?=?0.01, OR?=?1.433, 95 % CI?=?1.088–1.888) on the initial CT scan were independently associated with delayed hematoma evacuation.Conclusions
A critical proportion of patients with minimal aSDHs occurring after mild head injury can progress over several weeks and require hematoma evacuation. Especially patients with a large initial SDH volume and accompanying midline shift require careful monitoring of hematoma progression. 相似文献996.
Y.H. Chung MD W.H. Kim MD J.J. Lee MD PhD S.-I. Yang MD S.H. Lim MT D.W. Seo MD PhD K. Park MD PhD I.S. Chung MD PhD 《Der Anaesthesist》2014,63(2):122-128
Aim
The aim of the present study was to determine (1) whether successful intraoperative electromyography monitoring for lateral spread response (LSR) is possible with partial neuromuscular blockade (NMB) in subjects undergoing microvascular decompression (MVD) for hemifacial spasm and (2) the adequate level of NMB to achieve that goal.Material and methods
A total of 61 patients in whom LSR was monitored during MVD were enrolled in the study. Patients were randomly allocated to two groups: group TOF in which the NMB target was maintenance of two train-of-four (TOF) counts and group T1 in which the NMB target was maintenance of a T1/Tc ratio of 50?% (T1: first twitch height of TOF and Tc: control twitch height). The adductor pollicis brevis muscle was used to monitor TOF responses. The frequency of successful LSR monitoring, defined as successful baseline establishment and maintenance of LSR until surgical decompression, was compared between the two groups.Results
Of the 61 patients 2 were excluded from the study so that 30 patients in group TOF and 29 patients in group T1 were analyzed. The success rate of LSR monitoring was clinically acceptable and significantly higher in group T1 than in group TOF, i.e. n?=?15 (50.0?%) in group TOF versus n?=?24 (82.8?%) in group T1 (P?=?0.008), corresponding to a 32.8?% higher success rate in group T1 than group TOF (95?% CI: 13.9–51.7?%). Mean vecuronium infusion dose was smaller and mean TOF count was higher in group T1 than group TOF with a TOF count =?2 (1) in group TOF versus 3 (1) in group T1 (P?=?0.003). Mean sevoflurane and remifentanil infusion doses were not different between groups. There was no incidence of spontaneous movement during microscopy in either group.Conclusion
Maintenance of partial NMB with a target T1/Tc ratio of 50?% resulted in a clinically acceptable success rate of LSR monitoring and surgical condition during MVD. Maintenance of partial NMB with a target T1/Tc ratio of 50?% rather than TOF count of two during LSR monitoring for MVD can therefore be recommended. 相似文献997.
998.
999.
Louise L. Dunn Philippa J.L. Simpson Hamish C. Prosser Laura Lecce Gloria S.C. Yuen Andrew Buckle Daniel P. Sieveking Laura Z. Vanags Patrick R. Lim Renee W.Y. Chow Yuen Ting Lam Zoe Clayton Shisan Bao Michael J. Davies Nadina Stadler David S. Celermajer Roland Stocker Christina A. Bursill John P. Cooke Martin K.C. Ng 《Diabetes》2014,63(2):675-687
Impaired angiogenesis in ischemic tissue is a hallmark of diabetes. Thioredoxin-interacting protein (TXNIP) is an exquisitely glucose-sensitive gene that is overexpressed in diabetes. As TXNIP modulates the activity of the key angiogenic cytokine vascular endothelial growth factor (VEGF), we hypothesized that hyperglycemia-induced dysregulation of TXNIP may play a role in the pathogenesis of impaired angiogenesis in diabetes. In the current study, we report that high glucose–mediated overexpression of TXNIP induces a widespread impairment in endothelial cell (EC) function and survival by reducing VEGF production and sensitivity to VEGF action, findings that are rescued by silencing TXNIP with small interfering RNA. High glucose–induced EC dysfunction was recapitulated in normal glucose conditions by overexpressing either TXNIP or a TXNIP C247S mutant unable to bind thioredoxin, suggesting that TXNIP effects are largely independent of thioredoxin activity. In streptozotocin-induced diabetic mice, TXNIP knockdown to nondiabetic levels rescued diabetes-related impairment of angiogenesis, arteriogenesis, blood flow, and functional recovery in an ischemic hindlimb. These findings were associated with in vivo restoration of VEGF production to nondiabetic levels. These data implicate a critical role for TXNIP in diabetes-related impairment of ischemia-mediated angiogenesis and identify TXNIP as a potential therapeutic target for the vascular complications of diabetes. 相似文献
1000.