Supratentorial ependymomas in adult patients

OBJECTIVE: Ependymomas arise from different areas in the neuraxis and have variable outcomes that depend on tumor location and patient age at the time of presentation. The predictive value of histology for these tumors is unresolved. We report a series of adult patients with supratentorial ependymomas to characterize the roles of surgery, histology, ploidy, and proliferation index in tumor control. METHODS: Fourteen of the 23 supratentorial ependymomas were in the region of the third ventricle and the remainder were located in the hemispheres. Resections were gross total in 12 patients, subtotal in 8, and biopsy in 3. A single pathologist reviewed all slides and quantitated the deoxyribonucleic acid. The mean follow-up duration was 95 months (+/-75 mo). RESULTS: All of the malignant ependymomas were hemispheric (n = 4). Mortality occurred only in patients with third ventricular tumors; two patients died as a result of surgical complications and three as a result of tumor progression. Kaplan-Meier estimates of 5- and 10-year survival rates were 100% for hemispheric and 72.5% for third ventricular tumors (62.5% including the two perioperative deaths). The median time to recurrence was 53 months, with a 10-year progression-free survival rate of 27%. Univariate analysis revealed that recurrence was associated with malignant histology, including mitoses, cellularity, and aneuploidy. For nonmalignant ependymomas, recurrence was associated with subtotal resection and metastases. S-phase fraction did not correlate with recurrence. Only malignant histology correlated with recurrence on multivariate analysis. CONCLUSION: Although the numbers are too small to draw any definite conclusions, treatment of ependymomas that arise in the supratentorial compartment in adult patients results in excellent outcomes despite frequent recurrences. Association with the third ventricle and metastases seem to have a negative impact on survival, whereas malignant histology, subtotal resection, and metastases may be predictors of recurrence.     

Supratentorial ependymomas in childhood: Clinicopathological findings and prognosis

Summary Out of 29 supratentorial ependymomas in children under 10 years of age, operated on between 1951 and 1989, 18 were situated in the hemispheres and 11 in the midline.15 of the 18 hemispheric tumours, but only 4 of the 11 intra- or paraventricular ependymomas allowed complete removal. The operative mortality within the observation period of nearly 40 years was 27% for tumours in the midline and 11% for those in the hemispheres.The grade of malignancy rose with increasing distance from the ventricular level. 5-year survival without recurrence was 75% in grade 2 and 31% in grade 3 ependymomas. The total rate of recurrence was 58%.New tumour growth can be delayed by postoperative irradiation, at least in grade 2 ependymomas. It can be prevented, if at all, only by total resection of the primary tumour.Part of this paper was presented at the 41st Annual Meeting of the German Society for Neurosurgery in Düsseldorf, F.R.G., May 27–30, 1990.     

Supratentorial ependymomas. Neuroimaging and clinicopathological correlation

In 10 patients with supratentorial ependymomas, the tumors exhibited hyperdensity on computerized tomography (CT) scanning prior to contrast infusion and, with one exception, all tumors were mixed lesions with the low densities suggesting cystic or necrotic portions. Eighty percent of the tumors contained small calcifications. Characteristically, the tumors were well demarcated and demonstrated moderate to marked enhancement after the intravenous administration of contrast material. Angiograms obtained in some patients showed mild hypervascular tumor staining and absence of large feeding arteries. The degree of contrast enhancement, angiographic vascularity, and tumor stain was compared to the pathological anaplasia of the tumors. No correlation was observed. Of four patients who were still alive during a follow-up period of 4 years or longer, three had recurrences with inoperable tumors; the remaining patient is without recurrence after craniospinal radiation. This same patient belonged to a group of five patients with a diagnosis of high-grade ependymoma, four of whom had recurrence. Follow-up CT accurately recorded the clinical course of each patient. Annual routine follow-up examinations are proposed for patients with low-grade ependymomas, and for those with high-grade ependymomas follow-up CT should be performed every 6 months. The characteristic appearance and behavior of these tumors include several distinctive features on angiographic and CT images.     

Enteric-coated mycophenolate sodium in pediatric lupus nephritis: a retrospective cohort study

Background

The objective of this study was to examine the long-term efficacy and complications associated with use of enteric-coated mycophenolate sodium (EC-MPS) for treatment of pediatric lupus nephritis (LN).

Methods

This was a retrospective analysis of pediatric patients treated between 1995 and 2008. Comparisons were made between patients with LN who were and were not treated with EC-MPS (MPS and non-MPS groups). The primary endpoint was survival. The secondary endpoint was time to stage 3 chronic kidney disease (CKD). Response rates, laboratory parameters, and complications were determined.

Results

There were 33 patients in the MPS group and 19 patients in the non-MPS group. The MPS group had more patients with complete/partial response (72.7 vs. 31.6 %; P < 0.001) and a significantly higher survival rate (0.0 vs. 42.1 %, P < 0.001), but the groups had similar rates of stage 3 CKD. The rebound of complement 3 was more rapid in the MPS group. There were no significant between-group differences in the incidence of complications, including gastrointestinal complications.

Conclusion

A limitation of this study is the heterogeneity in the timing of treatment and in the duration of follow-up. Nonetheless, our findings suggest that EC-MPS can be an effective treatment for pediatric LN.

     

Attention deficit hyperactivity disorder & pediatric burn injury: a preliminary retrospective study

Attention deficit hyperactivity disorder (ADHD) has been described as a preexisting psychiatric disorder for patients with burns that may have contributed significantly to their injury. The authors are not aware of any studies that have specifically looked at ADHD in burn patients and its role in the injury. A retrospective chart review of all youth that were admitted to a burn care unit over the past 20 years and diagnosed with ADHD on admission was conducted to describe the occurrence and features of their injury. In the 39 patients identified as having ADHD, impulsive behavior contributed to burn injury in 21 cases (54%) and possibly four additional cases. In addition, nine of the 21 cases were not on prescribed stimulant medication on the day of burn injury. The presence of ADHD is important to consider with respect to risk and potential prevention of pediatric burn injury.     

Supratentorial lobar ependymomas: Reports on the grading and survival periods in 80 cases,including 46 recurrences

We report 80 supratentorial lobar ependymomas, including 46 recurrences. All underwent operation. In the total collection 34.5% survived for more than 5 years. The behaviour of children and adults was nearly identical. Based on a histological grading into three steps of malignancy (E1, E2, E3), the ependymomas in low grade 1 showed a 5 years' survival time of 41.5%. Compared to a 28.5% survival in group E2 at the same time. Results in group E3, which histologically resembled malignant glioma or glioblastoma, are not relevant because of the small number of cases. More than 50% of the E1 recurrences showed transformation to E2. No transformation into a lower grade of malignancy has been observed.     

The AO comprehensive classification of pediatric long-bone fractures: a web-based multicenter agreement study

The first AO comprehensive pediatric long-bone fracture classification system has been proposed following a structured path of development and validation with experienced pediatric surgeons. A Web-based multicenter agreement study involving 70 surgeons in 15 clinics and 5 countries was conducted to assess the reliability and accuracy of this classification when used by a wide range of surgeons with various levels of experience. Training was provided at each clinic before the session. Using the Internet, participants could log in at any time and classify 275 supracondylar, radius, and tibia fractures at their own pace. The fracture diagnosis was made following the hierarchy of the classification system using both clinical terminology and codes. kappa coefficients for the single-surgeon diagnosis of epiphyseal, metaphyseal, or diaphyseal fracture type were 0.66, 0.80, and 0.91, respectively. Median accuracy estimates for each bone and type were all greater than 80%. Depending on their experience and specialization, surgeons greatly varied in their ability to classify fractures. Pediatric training and at least 2 years of experience were associated with significant improvement in reliability and accuracy. Kappa coefficients for diagnosis of specific child patterns were 0.51, 0.63, and 0.48 for epiphyseal, metaphyseal, and diaphyseal fractures, respectively. Identified reasons for coding discrepancies were related to different understandings of terminology and definitions, as well as poor quality radiographic images. Results supported some minor adjustments in the coding of fracture type and child patterns. This classification system received wide acceptance and support among the surgeons involved. As long as appropriate training could be performed, the system classification was reliable, especially among surgeons with a minimum of 2 years of clinical experience. We encourage broad-based consultation between surgeons' international societies and the use of this classification system in the context of clinical practice as well as prospectively for clinical studies.     

Stapled versus hand-sewn pediatric intestinal anastomoses: A retrospective cohort study

Background

Whereas the adult literature has demonstrated the acceptable safety profile of stapled anastomoses when compared to the hand-sewn alternative, the choice of intestinal anastomosis using sutures or staples remains inadequately investigated in children. The purpose of this study is to compare the anastomotic outcomes of both techniques in children under 5 years of age.

Identification of genetically mediated cortical networks: a multivariate study of pediatric twins and siblings

Structural magnetic resonance imaging data from 308 twins, 64 singleton siblings of twins, and 228 singletons were analyzed using structural equation modeling and selected multivariate methods to identify genetically mediated intracortical associations. Principal components analyses (PCA) of the genetic correlation matrix indicated a single factor accounting for over 60% of the genetic variability in cortical thickness. When covaried for mean global cortical thickness, PCA, cluster analyses, and graph models identified genetically mediated fronto-parietal and occipital networks. Graph theoretical models suggest that the observed genetically mediated relationships follow small world architectural rules. These findings are largely concordant with other multivariate studies of brain structure and function, the twin literature, and current understanding on the role of genes in cortical neurodevelopment.     

Infratentorial ependymomas: prognostic factors and outcome analysis in a multi-center retrospective series of 106 adult patients

Object

This study was undertaken to analyze outcomes and to assess the prognostic impact of age, location, surgery, radiotherapy (RT), and histopathology in a series of adult infratentorial ependymomas.

Methods

This was a retrospective study of a population of 106 adult patients with infratentorial ependymomas diagnosed between 1990 and 2004. A central pathological review of all cases was performed. Grading was according to the WHO and Marseille’s neograding classifications.

Results

The series consisted of 58 males (54.7%) and 48 females (45.3%) in the age range of 18-82 years. Using the WHO classification, 88 patients (83.0%) had grade II and 18 patients (17.0%) grade III ependymomas. Using the Marseille’s neograding system, 91 patients were low-grade and 15 high-grade. Gross total resection was achieved in 66 patients (62.3%). Thirty-seven patients (35.0%) received adjuvant RT. The 5- and 10-year overall survival rates for the entire cohort were 86.1% and 80.5%, respectively. On multivariate analysis, a preoperative Karnofski performance status score?>?80, no recessus lateral extension and a low histological grade (Marseille’s grading) were associated with a longer overall survival. The 5- and 10-year progression-free survival rates for the entire cohort were 70.8% and 57.7%, respectively. On multivariate analysis, no recessus lateral extension, gross total resection and a low histological grade (Marseille’s grading) were associated with a longer progression-free survival. Adjuvant RT was significantly associated with a better overall and progression-free survival in incompletely resected WHO grade II ependymomas.

Conclusions

This study highlights the key role of histology in the clinical outcome and the fact that gross total resection is a main prognostic factor and the treatment of choice for posterior fossa ependymomas. The use of adjuvant RT in patients with incompletely resected WHO grade II ependymomas appears beneficial, but its effect on high-grade tumors remains to be determined.

     

PELD score and posttransplant outcome in pediatric liver transplantation: a retrospective study of 100 recipients

BACKGROUND: Pediatric End-stage Liver Disease (PELD) score is proposed as an objective tool to prioritize children awaiting liver transplantation (LT), higher PELD being associated with increased pre-LT mortality. This study investigated whether PELD may also impact on post-LT results. METHODS: PELD was retrospectively analyzed in 100 pediatric recipients of a primary LT from living-related (n = 49) or postmortem donors (PMD, n = 51). The main pre-LT diagnosis was biliary atresia (n = 64), hepatic malignancy and fulminant hepatitis cases being excluded. PELD was calculated in all patients at the time of pre-LT assessment. Considering the median delay of 117 days between listing and LT in the PMD subgroup, a second PELD was calculated at the time of LT, allowing the determination of a delta PELD during the waiting period. PMD grafts were allocated using an allocation system taking into account waiting times as well as medical urgency, operative at EuroTransplant. RESULTS: Overall 5-year actuarial patient and graft survivals were 96% and 91%, respectively. PELD at listing (13.3 +/- 9.7) showed a normal statistical distribution. PELD scores at listing and at LT were not found to significantly impact on post-LT outcome (NS). In contrast, higher delta PELD might be associated with lower posttransplant patient survival (p = 0.094). CONCLUSIONS: The results of this retrospective analysis suggest that giving priority to high PELD recipients may not result in worsening post-LT outcome. Accordingly, these data support such "sickest children first" allocation policy, which should contribute to reduce pre-LT mortality without worsening post-LT results and increasing organ waste.     

357例儿童死亡后器官捐献供肾移植血栓性并发症回顾性分析

目的 回顾性分析本中心儿童死亡后器官捐献(deceased donor,DD)供肾移植血栓性并发症的发生率以及相关影响因素.方法 收集中南大学湘雅二医院2012年1月—2018年12月完成的357例儿童DD供肾移植相关资料,将其分为三组,将297例单肾移植设为组一,60例双肾移植中,32例供体满足三"5"原则(供体年龄...     

Ankle arthroscopy: a retrospective study

The following is a retrospective study of 71 patients upon whom diagnostic and operative ankle arthroscopy was performed. The postoperative diagnosis in correlation with chosen operative procedure subjectively demonstrates 96% of the patients claiming excellent, good, or fair results. Three patients were unimproved. The criteria was pain upon range of motion experienced by the patient preoperatively and compared to postoperative status. Indications, contraindications, and complications, and the different forms of pathology encountered also will be reviewed.     

Wrist arthroplasty: a retrospective study

A retrospective study was conducted to evaluate the long-term effectiveness of wrist arthroplasties in patients with various arthritic conditions. A total of 39 wrist arthroplasties were performed in 29 patients (average age, 52.5 years) by the orthopedic staff at Tulane University School of Medicine. Rheumatoid arthritis was the major presenting diagnosis in 84.6% of these operative cases and pain was the most common indication for surgery (79.5%). Postoperative relief of pain was reported in all of the cases reviewed, with an average follow up period of 51.2 months (range, 12 to 118 months). A group of 15 patients who were examined clinically had an average grip strength of 19.2 lb (range, 6 lb to 45 lb). Pinch measurements averaged 1.9 lb and arc of motion averaged 59.5 degrees (range, 20 degrees to 100 degrees) for these patients. Postoperative complications included dislocation (3 cases), fracture of the prosthesis (2 cases), and infection (2 cases). No complications were observed in 32 (82.1%) of the 39 cases reviewed. This retrospective study revealed that at an average follow up period of 51.2 months, pain relief was excellent and patient acceptance was good, with 94.9% of the wrists having been improved by the procedure. The majority (82.1%) of the cases were free of complication. It is concluded from this study that wrist arthroplasty is a viable alternative to wrist arthrodesis.     

Dwyer osteotomy: a retrospective study

The authors present a retrospective study of 29 Dwyer osteotomies performed at Kern Hospital by the senior surgeon and resident assistants between 1975 and 1984. All operative procedures studied were supervised by one surgeon in order to demonstrate consistency in preoperative evaluation, surgical technique, and postoperative care. Subjective questionnaires were sent to each patient and the results analyzed. Additionally, an objective analysis of hospital and office records and a critical outcome assessment was undertaken. Results demonstrated significant improvement in the weight-bearing alignment of the involved foot, additional stability to the ankle, and improved rearfoot function.