Quantin C.,CHRU |
Quantin C.,University of Burgundy |
Benzenine E.,CHRU |
Ferdynus C.,University of Burgundy |
And 6 more authors.
Journal of Public Health (United Kingdom) | Year: 2013
BackgroundObstetric hemorrhages are a frequent cause of maternal death all over the world, but are not routinely monitored. Health systems administrative databases could be used for this purpose, but data quality needs to be assessed.ObjectivesUsing blood transfusion data recorded in administrative databases to estimate the frequency of obstetric hemorrhages.Research designA population-based study.SubjectsValidation sub-sample: all mothers who gave birth in a French region in 2006-07 (35 123 pregnancies). Main study: all mothers who gave birth in France in 2006-07 (1 629 537 pregnancies).MethodLinkage and comparison of administrative data on blood transfusions with data from the French blood agency ('gold standard'), and, based on this validation, the construction of a multivariable regression model to correct the number of pregnant women identified as having received a transfusion in the national administrative database.ResultsThe blood transfusion rate observed in the gold standard was 7.12‰. The sensitivity of the administrative data was estimated at 66.3% and the positive predictive value at 91.3%. The estimated total number of pregnant women who received blood transfusions in France in 2006-07 was 10 941 (6.71‰).ConclusionsThe administrative data, available in most countries, can be used to estimate the frequency of obstetric hemorrhages. © 2012 The Author.
PubMed | Agence nationale de securite du medicament et des produits de sante, Sanguine, Jean Monnet University and Etablissement francais du sang Bourgogne Franche Comte
Type: Journal Article | Journal: Presse medicale (Paris, France : 1983) | Year: 2015
From blood donor collection to transfusion of the recipient, there are several layers of protection of the blood supply. These measures combined with huge progresses over the three past decades in pathogen discovery and blood testing for specific pathogens (human immunodeficiency virus (HIV), hepatitis B (HBV) and C (HCV) viruses, Human T-cell leukemia virus (HTLV)), provide the greatest safety. With the implementation of serological and molecular testing, at least in high-income countries, transfusion-transmitted infections have become extremely rare. However, for pathogen agents, which are not tested and especially those which are responsible for emerging infectious disease, it became apparent that full control of infectious disease had not been achieved. In addition, the immune status of the recipient has also an impact in the outcome of infectious diseases transmitted by transfusion. Blood safety is based on several measures: education and deferral of donors with risk factors for transmissible disease, blood testing, pathogen reduction interventions, and patient blood management. This paper proposes a review of the residual risk of transmission of infectious diseases by transfusion and of the additional interventions able to further reduce it.
PubMed | Arbor Research Collaborative for Health, University of Versailles, French Atomic Energy Commission, University of Bordeaux Segalen and 8 more.
Type: | Journal: Nephrologie & therapeutique | Year: 2016
Preserving kidney function and improving the transition from chronic kidney disease to end stage is a research and healthcare challenge. The national Chronic Kidney Disease-Renal Epidemiology and Information Network (CKD-REIN) cohort was established to identify the determinants, biomarkers and practice patterns associated with chronic kidney disease outcomes.The study will include more than 3000adult patients with moderate to advanced chronic kidney disease from a representative sample of 40 nephrology clinics with respect to regions and legal status, public or private. Patients are recruited during a routine visit and followed for 5years, before and after starting renal replacement therapy. Patient-level clinical, biological, and lifestyle data are collected annually, as well as provider-level data on clinical practices, coordinated with the International Chronic Kidney Disease Outcomes and Practice Pattern Study. Blood and urine samples are stored in a biobank. Major studied outcomes include survival, patient-reported outcomes, disease progression and hospitalizations.More than 13,000 eligible patients with chronic kidney disease were identified, 60% with stage 3 and 40% with stage 4. Their median age is 72years [interquartile range, 62-80years], 60% are men and 38% have diabetes. By the end of December 2015, 2885patients were included.The CKD-REIN cohort will serve to improve our understanding of chronic kidney disease and provide evidence to improve patient survival and quality of life as well as health care system performances.
Leboeuf C.,French Institute of Health and Medical Research |
Leboeuf C.,University of Strasbourg |
Leboeuf C.,University of Basel |
Mailly L.,French Institute of Health and Medical Research |
And 30 more authors.
Molecular Therapy | Year: 2014
Cell therapy based on alloreactivity has completed clinical proof of concept against hematological malignancies. However, the efficacy of alloreactivity as a therapeutic approach to treat solid tumors is unknown. Using cell culture and animal models, we aimed to investigate the efficacy and safety of allogeneic suicide gene-modified killer cells as a cell-based therapy for hepatocellular carcinoma (HCC), for which treatment options are limited. Allogeneic killer cells from healthy donors were isolated, expanded, and phenotypically characterized. Antitumor cytotoxic activity and safety were studied using a panel of human or murine HCC cell lines engrafted in immunodeficient or immunocompetent mouse models. Human allogeneic suicide gene-modified killer cells (aSGMKCs) exhibit a high, rapid, interleukin-2- dependent, and non-major histocompatibility complex class I-restricted in vitro cytotoxicity toward human hepatoma cells, mainly mediated by natural killer (NK) and NK-like T cells. In vivo evaluation of this cell therapy product demonstrates a marked, rapid, and sustained regression of HCC. Preferential liver homing of effector cells contributed to its marked efficacy. Calcineurin inhibitors allowed preventing rejection of allogeneic lymphocytes by the host immune system without impairing their antitumor activity. Our results demonstrate proof of concept for aSGMKCs as immunotherapy for HCC and open perspectives for the clinical development of this approach. © The American Society of Gene & Cell Therapy.
Peyrard T.,Sanguine |
Bardiaux L.,Center National Of Reference Pour Les Groupes Sanguins |
Krause C.,Etablissement Francais du Sang Bourgogne Franche Comte |
Kobari L.,French Institute of Health and Medical Research |
And 3 more authors.
Transfusion Medicine Reviews | Year: 2011
The transfusion of red blood cells (RBCs) is now considered a well-settled and essential therapy. However, some difficulties and constraints still occur, such as long-term blood product shortage, blood donor population aging, known and yet unknown transfusion-transmitted infectious agents, growing cost of the transfusion supply chain management, and the inescapable blood group polymorphism barrier. Red blood cells can be now cultured in vitro from human hematopoietic, human embryonic, or human-induced pluripotent stem cells (hiPSCs). The highly promising hiPSC technology represents a potentially unlimited source of RBCs and opens the door to the revolutionary development of a new generation of allogeneic transfusion products. Assuming that in vitro large-scale cultured RBC production efficiently operates in the near future, we draw here some futuristic but realistic scenarios regarding potential applications for alloimmunized patients and those with a rare blood group. We retrospectively studied a cohort of 16,486 consecutive alloimmunized patients (10-year period), showing 1 to 7 alloantibodies with 361 different antibody combinations. We showed that only 3 hiPSC clones would be sufficient to match more than 99% of the 16,486 patients in need of RBC transfusions. The study of the French National Registry of People with a Rare Blood Phenotype/Genotype (10-year period) shows that 15 hiPSC clones would cover 100% of the needs in patients of white ancestry. In addition, one single hiPSC clone would meet 73% of the needs in alloimmunized patients with sickle cell disease for whom rare cryopreserved RBC units were required. As a result, we consider that a very limited number of RBC clones would be able to not only provide for the need for most alloimmunized patients and those with a rare blood group but also efficiently allow for a policy for alloimmunization prevention in multiply transfused patients. © 2011 Elsevier Inc.
Floret N.,Center hospitalier University |
Cervoni J.P.,Center hospitalier University |
Sheppard F.,Center hospitalier University |
Des Floris M.F.L.,Etablissement francais du sang Bourgogne Franche Comte |
Duchene F.,Center hospitalier
Journal of Hospital Infection | Year: 2013
In August 2006, the regional unit for nosocomial infection control (ARLIN) was notified of a case of symptomatic acute hepatitis B (HBV) infection in an immunosuppressed 87-year-old patient who had received a blood transfusion five months previously. Immunosuppression for the treatment of a variety of conditions is increasing. Immunosuppressed patients should be investigated for previous HBV infection and given pre-emptive therapy where indicated. We report our experience investigating a case of HBV reactivation in an immunosuppressed patient. We describe the investigation and highlight the continued need for vigilance for HBV reactivation in immunosuppressed patients who may present to a range of clinicians. © 2012 The Healthcare Infection Society.
Andreu-Ullrich H.,Etablissement Francais du Sang Bourgogne Franche Comte
Transfusion and Apheresis Science | Year: 2014
Extracorporeal photochemotherapy (ECP) has been applied to many T-cell mediated diseases where immunosuppressive drugs are insufficient or not tolerated. As ECP is mainly used in rare indications after failure of other therapies, controlled studies are hardly possible. In addition, the importance of the extracorporeal circuit imposes ethical doubts in organising sham ECP procedure, which explains the rarity of controlled double-blind studies.However, encouraging and even successful results have been reported in newly developed diabetes mellitus, erosive lichen planus, Crohn's disease, systemic sclerosis, nephrogenic fibrosing dermopathy, atopic dermatitis, rheumatoid arthritis, systemic lupus erythematodes, psoriasis arthritis, cutaneous mucinosis, scleromyxoedema, pemphigus vulgaris, multiple sclerosis, eosinophilic fasciitis and in the prevention of percutaneous transluminal coronary angioplasty (PTCA) restenosis.This article discusses the various levels of evidence in the above cited indications. © 2014 Elsevier Ltd.
Leconte des Floris M.-F.,Service dhemovigilance |
Pourcelot L.,Service dhemovigilance |
Hauser L.,Unite de gestion des risques et de la qualite |
Herve I.,Service dhemovigilance |
And 3 more authors.
Transfusion Clinique et Biologique | Year: 2012
One of the main goals of haemovigilance is to gather and analyze adverse events in recipients of blood products in order to improve blood safety. The French National Blood Service has a specific role in the management of immediate adverse events: to alert to quarantine the potentially dangerous blood products from the same donation(s), to provide blood testing for the etiologic assessment and to give transfusion advice to patients. The updating of the recipient's computer file allows a better monitoring for both immediate and delayed adverse events. Finally, the French National Blood Service's correspondent of haemovigilance is responsible for donor's inquiries, especially in cases of transfusion related to bacterial contamination, severe allergy, suspicion of transfusion acute related lung injury and viral seroconversion. The management effectiveness for adverse events requires a strong collaboration between all members of the haemovigilance network. © 2012 Elsevier Masson SAS.
Herve I.,Etablissement francais du sang Normandie |
Simonet M.,Pole vigilances |
Rebibo D.,Pole vigilances |
Leconte des Floris M.-F.,Etablissement francais du sang Bourgogne Franche Comte |
And 3 more authors.
Transfusion Clinique et Biologique | Year: 2010
Post donation information management is a fundamental axis of haemovigilance in terms of blood safety. It requires an organization ensuring a permanent reactivity, a good sensitization of French National Blood Service professionals and needs also a strong awareness of blood donors. Previous identification of stakeholders to warn during these kinds of alerts is essential to avoid the use of any blood product presenting a potential risk. The recent implementation of a consensual internal document aims to target the reinforcement of a homogeneous decision-making process, combining blood product self-sufficiency and above all recipient safety. © 2010.
PubMed | Etablissement francais du sang Ile de France, Direction medicale and Etablissement francais du sang Bourgogne Franche Comte
Type: Journal Article | Journal: Transfusion clinique et biologique : journal de la Societe francaise de transfusion sanguine | Year: 2016
If technological innovations are not enough alone to improve blood safety, their contributions for several decades in blood transfusion are major. The improvement of blood donation (new apheresis devices, RFID) or blood components (additive solutions, pathogen reduction technology, automated processing of platelets concentrates) or manufacturing process of these products (by automated processing of whole blood), all these steps where technological innovations were implemented, lead us to better traceability, more efficient processes, quality improvement of blood products and therefore increased blood safety for blood donors and patients. If we are on the threshold of a great change with the progress of pathogen reduction technology (for whole blood and red blood cells), we hope to see production of ex vivo red blood cells or platelets who are real and who open new conceptual paths on blood safety.