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[Standards, Options and Recommendations 2002 for the management of adult patients with intracranial gliomas (summary report)].

CONTEXT: The "Standards, Options and Recommendations" (SOR) project, which started in 1993, is a collaboration between the Federation of French Cancer Centers (FNCLCC), the 20 French Regional Cancer Centers, and specialists from French public universities, general hospitals and private clinics. The main objective is the development of clinical practice guidelines to improve the quality of health care and the outcome of cancer patients. OBJECTIVE: To define clinical practice guidelines for the management of adult patients with intracranial glioma in collaboration with the Association of French-speaking Neuro-oncologists (Anocef) and the French society of neurosurgeons (SNCLF). These recommendations cover diagnosis, classification, treatment and follow-up of patients with these tumors. METHOD: The methodology is based on a literature review and critical appraisal by a multidisciplinary group of experts who define the CPGs according to the definitions of the Standards, Options and Recommendations project. Once the guidelines has been defined, the document is submitted for review by independent reviewers. RESULTS: This article is a summary version of the full document presenting the clinical practice guidelines with algorithms. The main recommendations concern the place of the surgery, radiotherapy, chemiotherapy, imagery and concomitant medical treatments in the specific treatment strategy of grade III and IV glioma, grade II glioma, gliomatosis cerebri, pilocytic astrocytoma, subependymoma, xanthoastrocytoma, intracranial ependymoma and brain stem glioma.

Adult↗

Summary report of a national conference: Evolving concepts in liver allocation in the MELD and PELD era. December 8, 2003, Washington, DC, USA.

A national conference was held to review and assess data gathered since implementation of MELD and PELD and determine future directions. The objectives of the conference were to review the current system of liver allocation with a critical analysis of its strengths and weaknesses. Conference participants used an evidence-based approach to consider whether predicted outcome after transplantation should influence allocation, to discuss the concept of minimal listing score, to revisit current and potential expansion of exception criteria, and to determine whether specific scores should be used for automatic removal of patients on the waiting list. After review of data from the first 18 months since implementation, association and society leaders, and surgeons and hepatologists with wide regional representation were invited to participate in small group discussions focusing on each of the main objectives. At the completion of the meeting, there was agreement that MELD has had a successful initial implementation, meeting the goal of providing a system of allocation that emphasizes the urgency of the candidate while diminishing the reliance on waiting time, and that it has proven to be a powerful tool for auditing the liver allocation system. It was also agreed that the data regarding the accuracy of PELD as a predictor of pretransplant mortality were less conclusive and that PELD should be considered in isolation. Recommendations for the transplant community, based on the analysis of the MELD data, were discussed and are presented in the summary document.

Adult↗

Biostatistical analysis of the collaborative glaucoma study. I. Summary report of the risk factors for glaucomatous visual-field defects.

A prospective collaborative study was conducted in five centers during a 13-year period to identify factors that influence the development of visual-field defects (GVFDs) of open angle glaucoma. In 5,000 subjects, GVFDs developed in only 1.7% of eyes. Statistical analysis of 26 factors at first examination identified five that were significantly related to the development of GVFDs--outflow facility, age, applanation pressure, cup-disc ratio, and pressure change after water drinking. Their absolute initial value, and not its change with time, was the important predictor. Multivariate analysis showed their collective predictive power to be undesirably poor, indicating that other factors must play an important role in the development of GVFDs. Mortality-table analysis indicated that during a period of five years, 98.54% of eyes with initial pressure less than 20 mm Hg continued to be free from GVFDs as compared with 93.34% of those with pressure of 20 mm Hg or greater.

Aged↗

National Conference on Ergonomics, Safety, and Health in Construction summary report.

Decision makers from the construction industry, labor unions, government, and academia met in Washington, DC, July 18 to 22 to focus for the first time as a group on the work-related safety and health problems of construction workers. The National Conference on Ergonomics, Safety, and Health in Construction drew more than 750 participants, including experts in economics, engineering, ergonomics, industrial hygiene, insurance, public health, public policy, and occupational and rehabilitative medicine.

Accidents, Occupational↗

Summary report: Missing data and pedigree and genotyping errors.

Genetic epidemiology is faced with mapping complex traits to genes with relatively small effects whose phenotypes may be modulated by temporal factors. To do this, detailed and accurate data must be available on families, perhaps collected over time. The Framingham Heart Study data supplied to Genetic Analysis Workshop 13 (GAW13), along with its simulated counterpart, contain longitudinal measurements and genomic scan data on 2,885 individuals in 330 families, and offer an opportunity to examine data quality and completeness issues as they affect analytical conclusions. Six GAW13 contributions applied methods to deal with missing data, both phenotypic and genotypic, at a single time point and longitudinally, and with possible errors in pedigree structure and genotypes. The methods included missing phenotypic data imputation by Markov chain Monte Carlo sampling, propensity scoring, regression, and adjusted mean values, as well as the assessment of transmission-disequilibrium tests when missing marker data may be allele-specific. Pedigree structural errors were found by genome-wide allele-sharing probabilities, while Mendelian consistent genotype errors were evaluated through likelihoods of double-recombination events. Each of the methods reviewed here offered insights into how to better take advantage of large, time-dependent, familial data sets. However, no one of them dealt with the longitudinal and familial aspects simultaneously. Overall, more consideration needs to be given to the effects that missing data and data errors have on our ability to map complex traits efficiently and accurately.

Cardiovascular Diseases↗

State of the Art and Future Needs in Cytogenetic/Molecular Genetics/Arrays in childhood lymphoma: summary report of workshop at the First International Symposium on childhood and adolescent non-Hodgkin lymphoma, April 9, 2003, New York City, NY.

BACKGROUND: A significant number of studies describe the cytogenetics and molecular genetics of adult non-Hodgkin lymphoma (NHL); however, similar knowledge is lacking regarding pediatric NHL. METHODS: A workshop to discuss the "State of the Art and Future Needs in Cytogenetic/Molecular Genetics/Arrays" in pediatric NHL was held in conjunction with the First International Symposium on Childhood and Adolescent Non-Hodgkin Lymphoma on April 9, 2003 in New York City. RESULTS: Cytogenetic characteristics of pediatric NHL include 14q11.2 rearrangements in T-cell lymphoblastic leukemia/lymphomas (LBL), ALK rearrangements in anaplastic large cell lymphomas (ALCL), and CMYC translocations in both Burkitt and Burkitt-like lymphomas (BL/BLL). Pediatric diffuse large B-cell lymphoma (DLBCL) is cytogenetically different from DLBCL in adults, suggesting a different disease in children. Microarray studies demonstrate three types of T-cell leukemia, the leukemic counterpart of LBL, that block T-cell differentiation at different stages of T-cell development, corresponding to LYL, TAL1, and HOX-expressing leukemias. ALCL cell lines have a unique expression profile compared to normal T-cells. Germinal centers of BL have CMYC expression signatures, indicating that CMYC expression is ectopic and does not reflect the physiology of the normal cell counterpart. CONCLUSIONS: Additional cytogenetic, molecular and microarray investigations of NHL in children are vital to better understand these diseases, their etiology, and differences from adult NHL. A greater understanding of pediatric NHL will lead to disease-specific and patient-individualized therapies of these diseases.

Adolescent↗

Summary report of the Working Group on Mammalian Germ Cell Tests.

The two tests considered by the Working Group were the mammalian germ cell cytogenetic assay and the rodent dominant lethal test. It was agreed that both tests were mainly used for identification of germ cell hazards, however, that the commonly applied protocol of the dominant lethal assay often supplied information for hazard characterization such as sensitivity of particular developmental stages of male germ cells. No particular species or strains were indicated. Concurrent solvent controls were regarded as indispensable for both tests. In the discussion of the mammalian germ cell cytogenetic assay, harmonization was obtained to a large extent with the cytogenetic bone marrow assay regarding the number of animals (5), the number of cells analyzed per animal (200), the highest exposure dose (MTD) and sampling times (twice within 24 and 48 h after dosing). However, it was pointed out that only the single acute exposure was adequate for the mammalian germ cell cytogenetic assay. Furthermore, it was stated that only structural chromosome aberrations could be analyzed and that it was not informative to score polyploidies or aneuploidies. In the discussion of the rodent dominant lethal test, it was stated that the assay was generally performed with treated males, however, increasing concern about female specific effects required that a protocol for female dominant lethal testing should be developed and validated. Acute and subacute treatment schedules were considered equally acceptable. It was regarded as highly important that the entire male germ cell development from meiosis to mature sperm was covered in the test protocol either by the appropriate mating schedules after single dosing or by subchronic dosing during the respective period. Postimplantation loss, preimplantation loss and fertility rate were the main parameters to be assessed in the rodent dominant lethal tests. It was agreed that the size of the experiment depended on the spontaneous frequency of dead implants, the mating scheme and the statistical design of the experiment.

Aneuploidy↗

Second symposium on the definition and management of anaphylaxis: summary report--second National Institute of Allergy and Infectious Disease/Food Allergy and Anaphylaxis Network symposium.

There is no universal agreement on the definition of anaphylaxis or the criteria for diagnosis. In July 2005, the National Institute of Allergy and Infectious Disease and Food Allergy and Anaphylaxis Network convened a second meeting on anaphylaxis, which included representatives from 16 different organizations or government bodies, including representatives from North America, Europe, and Australia, to continue working toward a universally accepted definition of anaphylaxis, establish clinical criteria that would accurately identify cases of anaphylaxis with high precision, further review the evidence on the most appropriate management of anaphylaxis, and outline the research needs in this area.

Journal Article↗