
Bon dimanche..tous
Salut LéaLéa a écrit : Ce qui revient à prouver que l'Elisa sans le WB est une foutaise......
ma conclusion : c'est le postulat émis par tous les scientifiques dignes de ce nom depuis de nombreuses années.
Et qui remet en cause le consensus français du 13 décembre 2006 ainsi que les directives européennes qui prônent la détection de cette infection sur la base de "2 étapes" .....
salut Soc,Sociando a écrit : Salut Léa
Et en quoi le consensus est'il remis en cause ?
Le consensus indique : "Une spécificité minimale de 90% des techniques de dépistage est recommandée." (p.7 du texte court). Donc si l'Elisa n'a qu'une fiabilité de 50%, il ne devrait pas être utilisé...Léa a écrit :Et en quoi le consensus est'il remis en cause ?
Reporting of all nationally notifiable diseases, including Lyme disease, is based on standard surveillance case definitions developed by the Council of State and Territorial Epidemiologists (CSTE) and CDC. The usefulness of public health surveillance data depends on its uniformity, simplicity, and timeliness. Surveillance case definitions establish uniform criteria for disease reporting and should not be used as the sole criteria for establishing clinical diagnoses, determining the standard of care necessary for a particular patient, setting guidelines for quality assurance, or providing standards for reimbursement. http://www.cdc.gov/lyme/stats/survfaq.html
Le signalement de toutes les maladies soumises à déclaration au niveau national, y compris la maladie de Lyme, est basé sur la définition de la maladie telle qu'établie par le CSTE/CDC.Reporting of all nationally notifiable diseases, including Lyme disease, is based on standard surveillance case definitions developed by the Council of State and Territorial Epidemiologists (CSTE) and CDC. The usefulness of public health surveillance data depends on its uniformity, simplicity, and timeliness. Surveillance case definitions establish uniform criteria for disease reporting and should not be used as the sole criteria for establishing clinical diagnoses, determining the standard of care necessary for a particular patient, setting guidelines for quality assurance, or providing standards for reimbursement. http://www.cdc.gov/lyme/stats/survfaq.html
Il y a des cas de borréliose à sérologie négative qui sont retenus dans la littérature( Pour les rares cas auxquels j'ai acces,il datent de 10 ans, de 20 ans ),mais les personnes sous immunosuppresseurs sont à exclure de ce contexte .Framboise a écrit : ...Des cas de Lyme seronegative ont ete decrits dans la litterature:...
BMJ Case Rep. 2013 Feb 14;2013. pii: bcr2012007627. doi: 10.1136/bcr-2012-007627.
Seronegative lyme neuroborreliosis in a patient using RITUXIMAB .
van Dop WA1, Kersten MJ, de Wever B, Hovius JW.
Author information
Abstract
A 66-year-old woman presented with severe shooting pains throughout her back and legs, followed by progressive deafness, weight loss and headache. She had a history of marginal zone B-cell lymphoma stage IV-B, for which she was successfully treated with immunochemotherapy and RITUXIMAB maintenance therapy. A relapse was suspected, but chemotherapy was not administered, since, despite elaborate investigations, malignancy could not be proven. Because of a history of tick bites she was tested for antibodies against Borrelia burgdorferi in serum and cerebrospinal fluid (CSF), which were negative. However, a B burgdorferi PCR on CSF came back positive. The patient was treated for seronegative Lyme neuroborreliosis with ceftriaxone intravenously and dramatically improved.THIS CASE PRESENTATION DEMONSTRATE THAT,IN IMMUNOCOMPROMISED PATIENTS , it is important not to solely rely on antibody testing and to use additional diagnostic tests to avoid missing or delaying the diagnosis.
Infection. 2007 Apr;35(2):110-3.
Seronegative Lyme neuroborreliosis in a patient on treatment for chronic lymphatic leukemia.
Harrer T1, Geissdörfer W, Schoerner C, Lang E, Helm G.
Author information
Abstract
We report on a patient who developed seronegative Lyme neuroborreliosis complicating chemotherapy for chronic lymphatic leukemia. After the fifth cycle of chemotherapy (FCR: FLUDARABINE , CYCLOPHOSPHAMIDE,RITUXIMAB AND PREDNISONE) the 63-year-old patient developed night sweat, arthralgia in elbows, wrists, proximal interphalangeal joints (PIPs) and strong neuropathic pain in both legs, followed by paresthesia and hypesthesia in the feet, arms and face. Laboratory analysis revealed an elevated C-reactive protein (CRP), a slight elevation of liver enzymes and decreased IgG levels. Cerebrospinal fluid (CSF) analysis showed a lymphomononuclear pleocytosis and an elevation of protein. A broad diagnostic work-up was negative including a negative Borrelia IgG and IgM ELISA. The patient did not remember recent tick bites, but after specific questioning he recollected a transient erythema on his leg developing just before the start of the last cycle of chemotherapy. As the combination of neuropathic pain and arthralgia, the transient erythema and the lymphomononuclear pleocytosis raised the suspicion of Lyme neuroborreliosis, the patient was treated for 3 weeks with ceftriaxone. On therapy all symptoms resolved and CRP normalized. Retrospective PCR analysis of a CSF sample confirmed the clinical diagnosis by detecting Borrelia garinii DNA. THIS CASE DEMONSTRATES THAT IN IMMUNOSUPPRESSED PATIENTS BORRELIAL SEROLOGY MAY BE NEGATIVE and that additional diagnostic approaches (including tests for direct Borrelia detection) may be needed to demonstrate borrelial infection.
http://www.infectiologie.com/site/media ... rganow.pdfTraitements immunosuppresseurs
Traitements lymphoablatifs
• L'irradiation totale
• les alkylants CYCLOPHOSPHAMIDE (Endoxan*)
• les intercalants Mitoxantrone (Elsep*)
• Les globulines anti-thymocytes (ATG, Thymoglobuline*, ATG
Fresenius*)
• Les anticorps monoclonaux (anti-CD3, Othoclone OKT3*, anti
CD20,RITUXIMAB , Mabthera*)
http://www.ncbi.nlm.nih.gov/pubmed/10202937FLUDARABINE is a nucleoside analog used in the treatment of hematologic malignancies that CAN INDUCE SEVERE AND PROLONGED IMMUNOSUPPRESSION .
http://www.med.univ-angers.fr/fr/format ... nload=trueLes Glucocorticoïdes : PREDNISONE , Prednisolone
• Action anti-inflammatoire
0.1 à 0.2 mg/kg/jour (5 à 15 mg)
•ACTION IMMUNOSUPPRESSIVE .
1 à 2 mg/kg/jour (50 à 200 mg)...