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Pseudohyperkalemia is common in routine laboratory tests. The objective of the present study is to determine pseudohyperkalemia associated with blood sampling and to analyze other causes that may explain the occurrence of hyperkalemia. A prospective descriptive and analytical study was carried out over a period of 3 months, from November 2020 to January 2021, at the University Hospital Center Professor Zafisaona Gabriel Mahajanga. Samples intended for the determination of plasma potassium, of which the pre-analytical phase could be followed from the blood sampling to their analysis were included. One hundred and twenty nine samples were tracked. Hyperkalemia was observed in 51 cases, or 39.5%. The frequency of pseudohyperkalemia was 27.5% (n = 14). Pseudohyperkalemia predominated on samples from hospitalized patients, where the pediatric department was first (50%, n = 7), followed by the Emergency and Intensive Care Department (42.9%, n = 6). It was more frequent on samples taken by paramedical trainees (78.6%, n = 11). Pseudohyperkalemia associated with tourniquet placement for more than one minute was 42.9% (n = 6). The age of 0 to 15 years and over 60 years, the presence of edema, renal and / or cardiac signs, the use of hyperkalemic drugs, and hospitalization were significantly linked to the occurrence of hyperkalemia (p

Introduction: Sickle cell disease, also known as sickle cell anaemia, is an inherited haemoglobinopathy resulting in the production of the abnormal haemoglobin of sickle cell disease: haemoglobin S. Sickle cell patients are exposed to frequent deglobulation crises, often requiring several blood transfusions and hospitalisations at risk of transmission of infectious diseases such as hepatitis B (HBV). The objective of our study is to describe the immunisation against hepatitis B of vaccinated sickle cell patients and then to propose a course of action for non-immunised patients in the Haematology Department of the Joseph Ravoahangy Andrianavalona University Hospital (JRAHU). Material and Methods:The study was a prospective descriptive study investigating on the immunisation against hepatitis B of vaccinated sickle cell patient’s patients in the Haematology Department of the Joseph Ravoahangy Andrianavalona University Hospital (JRAHU) from June 2019 to March 2020. The study population concerned all sickle cell disease children under 15 years of age, girls or boys, of any ethnic origin, with or without clinical or biological signs of hepatitis, vaccinated against hepatitis B according to expanded program of immunization with at least 3 injections of hepatitis B vaccine, transfused or not. The included patients were be tested for HBsAg and anti-HBsAb. Results:During the study period, a total of 36 sickle cell patients were included. The average age was 8.2 years with an extreme of 2 and 13 years. Of the 36 sickle cell patients vaccinated, none had HBsAg and 28 patients (77.8%) were anti-HBsAb positive, protected against hepatitis B and 8 patients (22.2%) were serologically negative and at risk of contracting hepatitis B. Conclusion:Sickle cell disease patients are exposed risk of transmission of infectious diseases, if their antibody level between 1 and 10 mIU mL-1 is considered a poor response, those affected should receive a booster.

Introduction:Le bilan dhemostase est devenu une routine dans certains pays pour evaluer le risque hemorragique peri-operatoire. Lobjectif principal de cette etude etait devaluer les resultats des bilans dhemostase preoperatoires effectues au laboratoire dhematologie. Methodes et resultats:Une etude transversale retrospective descriptive et analytique a ete menee a lunite dhematologie du CHU Joseph Ravoahangy Andrianavalona pendant trois mois. Elle concernait des patients ayant realise des bilans dhemostase preoperatoires durant cette periode. Parmi 269 patients, 98 patients avaient des troubles de la coagulation preoperatoire. Le taux de prothrombine (TP) bas predominait dans 38,1% des cas, dont 68,9% etaient isoles et 31,1% etaient associes a lallongement de temps de cephaline active (TCA). La thrombocytose a ete retrouvee dans 37,3% des cas, la thrombocytopenie dans 15,3%. Lallongement du TCA a ete retrouve dans 9,3% des cas. Conclusion:Lesbilans dhemostase preoperatoire standards ne peuvent a eux seuls predire le risque de saignement. Leur prescription doit etre selective en fonction des antecedents et de la clinique. La recherche de letiologie des anomalies est importante pour ameliorer la prise en charge peri et post-operatoire. &nbsp

Introduction:Reliability of biological assays results depends closely on the quality of the 3 biological stages: pre-analytical, analytical, and post-analytical.In each stage, a quality program including internal quality control (IQC) and external quality assurance (EQA) has to be assessed to ensure test result accuracy and precision. The coagulation laboratory plays an important role in the diagnosis and treatment of people with blood disorders, so though several lack of facilities in Malagasy labs, QC has to be implemented. Thus, this study aimed to analyze IQC and EQA in hemostasis tests in the Hematology laboratory of the CHU-HJRA in Antananarivo Madagascar in order to improve its analytical phases quality. Methods:This retrospective descriptive and analytical study was conducted from January 1st, to October 31st, 2021 in the Hematology laboratory of CHU-JRA within the routine coagulation tests (Prothrombin time PT and Activated partial prothrombin time aPTT). Regarding the EQA, percentage of deviation from the peer groups results were calculated. Then in order to analyze IQCs results, coefficient of variation and biases of IQCs results, corresponding respectively to precision and accuracy, were calculated and Levey-Jennings graphs were analyzed. Results:Regarding global results of EQA, 50% were within consensus compared to peer-group. And regarding IQC, for precision, one coefficient of variation for both PT and aPTT exceeded 5%, and for accuracy, no bias exceeds 10% deviation from the expected result. Levey-Jenningss plot showed more than 90% of the results to be within M±2 SD range. A violation 10x Westgard rules, corresponding to a systematic error was observed. Conclusion:Each out-of-control results has to be analyzed as part of strengthening quality program guaranteeing coagulation tests reliability.&nbsp

According to National Authority for Health, the isolated dosage of TSH, in first-line, is a sufficient supply for the diagnosis and monitoring of thyroid dysfunction. The purpose of this study are to determine the prevalence of prescriptions of thyroid test, evaluate the practices on the prescription of thyroid tests compared to international recommendations. It is a descriptive retropective study within a period of 12 months. All the files with a request for TSH and / or thyroid hormone were included in this study. All files with a previous thyroid check-up or as part of a dysthyroidism follow-up assessment were excluded. Among the 72600 prescriptions for biochemical tests, 184 corresponded to the prescription of thyroid tests, it means 0.25% compared to other biochemical blood tests recorded. Among the 184 prescriptions requesting thyroid tests,117 files were retained. The mean age of the patients was 42.3 years, with a sex ratio of 0.18. One hundred sixteen files included a request of TSH dosage; 28,21% included only a TSH dosage and 70.94% included a request of simultaneous TSH dosage with one of two thyroid hormones. One prescription (0.85%) asked for a thyroid hormones dosage only without preliminary TSH dosage. TSH ranged from The number of thyroid hormone dosage in first-line in this study is important. Their prescription should be adapted to current recommendations in order to avoid the additional cost of unnecessary dosages for patients.&nbsp

Background: Hemophilia, a constitutional bleeding disease, has always been present in Madagascar considering children who died after bleeding circumcision, as reported in the family history of the diagnosed patients. Hemophilia is serious because of the potentially fatal risk of hemorrhage. The aim of this study was to evaluate the clinical, outcome and therapeutic aspects of inpatients with hemophilia in the Surgical Resuscitation Unit of JRA Hospital in Antananarivo. A descriptive and observational study was led about patients with hemophilia cared in the Surgical Resuscitation Unit from January 2011 to March 2018, studying age, type and severity of hemophilia, reason and duration of hospitalization, treatment instituted and outcome of patients. Results and comments: Thirty-six hemophiliacs (0.2%) were enrolled. The mean age was 9.52 years old; 52.78% were with hemophilia B and 47.22% with hemophilia A, mainly severe. Clinical manifestations were muscle hematomas (25.71%), gum bleeding (14%), epistaxis (14.28%), gastrointestinal bleeding (11.42%), intracranial hemorrhage (11.42%), post circumcision bleeding (11.42%), hematuria, intraperitoneal hematomas and hemarthrosis. Treatment was based on factor concentrate substitution when available. The length of stay ranged from one to thirty days. The evolution was favorable except for two deaths related to delayed management of intracranial hemorrhage. Three patients with hemophilia A developed inhibitors. The results showed that throughout these years of study, a change in management was noted alongside. Conclusion: Hemophilia cases requiring hospitalization were managed in surgical resuscitation unit. The evolution was mainly related to the availability of clotting factor concentrates in coagulation factors, the delay in taking care of the patients and the presence of specialized staff.

The aim of the present study is to assess the performance of the biochemistry laboratory of Joseph Ravoahangy Andrianavalona by the dosage of the most prescribed 7 biochemical parameters. It is a retrospective evaluative study of the performance of the biochemistry laboratory of Joseph Ravoahangy Andrianavalona University Hospital Center on a period of 6 months from January 2020 to June 2020 involving 12 samples of External Evaluation of the Quality provided by the Quality Insurance Association of the clinical Biology Laboratories in France. Uremia, Serum creatinine, blood glucose, natremia, kaliemia, chlorure and were dosed on the 12 samples which carried out 84 dosages. During a period of 6 months the accuracy was 97.61%. The precision had been 100% if the Variation Coefficient Ratio (VCR) was below 1.50. This participation in the External Evaluation of the Quality program can then improve the quality of the laboratory. It is a step towards the accreditation process.

In whole, 56 patients were included. Amidst identified microorganisms were fungus (4,7%) and bacteria (95,3%) to which Gram negative bacilli represented 72,1% (n=44), Gram positive cocci 6,4% (n=10), Gram positive bacilli 8,2% (n=5) and Gram negative cocci 3,3% (n=2). Among these bacterias, Pseudomonas aeruginosa and Proteus sp were predominant, with respectively 41% (n=25), 23% (n=14). However, three cases of S. aureus reported, six with negative coagulase Staphylococcus, one with Escherichia coli, one with Klebsiella sp, one with Haemophilus sp, two cases with Neisseria sp and four cases with Corynebacterium sp. Two types of cultures were noticed, one of them monomorphic (91,1%, n=51) and the other polymorphic (8,9%, n=5) to which 3 associations of P. aeruginosa-Proteus sp, 1 association of P. aeruginosa- coagulase negative Staphylococcus and 1 association of P. aeruginosa- E. coli. No resistance to ciprofloxacin was observed with Pseudomonas, Neisseria sp, Haemophilus, and enterobacteria except for E. coli. No resistance to rifampicin was observed with S. aureus. However, the sensitivity of S. aureus to ciprofloxacin decreased (one bacterium out of three). The use of rifampicin or fluoroquinolones should be based on the type of ear infections

Background There is currently no validated, effective, safe treatment for severe illness caused by SARS-CoV-2. CVO PLUS CURATIF (CVO+C) is a capsule formulation of two compounds of plant origin with anti-inflammatory and antiviral activities in vitro: artemisinin and 1,8-cineole. These compounds have been repurposed for possible use as an oral treatment against COVID-19. Methods We performed a phase 3 randomized clinical trials on patients over the age of 18 years with SARS-CoV-2 infection confirmed by RT-PCR and mild-to-moderate symptoms. Patients were randomly assigned to receive CVO+C (3 capsules per day) or placebo for 15 days. The primary outcome was the proportion of patients testing negative for SARS-CoV-2 by RT-PCR on day 28 and an absence of severe and serious adverse events. Recovery time, and biological parameters on days 7, 14, 21 and 28 of the trial were considered as secondary outcomes. The safety outcomes considered were adverse events on treatment. Results In total, 1,576 individuals underwent RT-PCR screening for SARS-CoV-2 infection during the study period. Positive test results were obtained for 591 subjects, 339 of whom met the inclusion criteria for this study. The final analysis included 339 subjects: 132 from the CVO+C arm and 144 from the placebo arm. Treatment efficacy differed significantly (p=0.011) between the CVO+C arm (87.1%, 95% CI: 81.3%-92.9%, with 70.45% of patients cured by day 14) and the placebo arm (75.0%, 95% CI: 67.8% - 82.1%), with an OR of 2.25. The median time to recovery was 14 days for the CVO+C group and 21 days for the placebo group. A total of 72 incidences of mild and moderate adverse events, 14 severe adverse events and no serious adverse events were observed in both groups. ConclusionCVO+C was effective for the treatment of mild-to-moderate COVID-19. None of the patients in the CVO+C arm displayed progression to the severe form of COVID-19. Liver kidney and metabolic functions were preserved in all patients.Trial registration: Registered at Pan African Clinical Trials Registry: (No. PACTR202103601407640, date of approval: 24/03/2021) and approved by the ethics committee of the Ministry of Public Health of Madagascar (approval No. 216 MINSANP/SG/AGMED/CERBM, 17/12/2020)

Sexually transmitted diseases (STD) are public health concerns worldwide. The aim of our study is to assess infection and coinfection with HIV, hepatitis B, hepatitis C and syphilis among men having sex with men in Mahajanga which is a western coastal town of Madagascar. We conducted a prospective and descriptive preliminary study in the laboratory of the University Hospital Center PZAGA in Mahajanga during a period of three months, from December 2014 to February 2015. We included 100 MSM in our study. Their mean age was 36 yrs (16 to 55 yrs). We found 30% of seropositive men among our sample. HIV positive men are mainly part of the age group [20–29 yrs]. The mean age of positive men was respectively 38 yrs., 36 yrs., 48 yrs. and 39 yrs. for HIV, for HBV, HCV, and syphilis. We found respectively for hepatitis B, hepatitis C and syphilis 7%, 1% and 11% positive samples. We found no co-infection HIV and HCV for them. But we found 5% of coinfection HIV-HBV, 4% of coinfection HIV-syphilis and 1% of coinfection of HIV, HBV and syphilis. We highlighted a very high rate of HIV positivity among MSM living in Mahajanga. Efforts have to be made in order to sensitize them about risky behaviors.

International audience; Background: False positivity in blood screening may cause unnecessary deferral of healthy donors and exacerbate blood shortages. An international multicenter study was conducted to estimate the frequency of HCV and HIV false seropositivity in seven African countries (Burundi, Cameroon, Democratic Republic of Congo, Madagascar, Mali, Mauritania, and Niger).Study design and methods: Blood donations were tested for hepatitis C virus (HCV) and human immunodeficiency virus (HIV) with rapid detection tests (RDTs), third-generation enzyme immunoassays (EIAs), or fourth-generation EIAs. HCV (456/16,613 [2.74%]) and HIV (249/16,675 [1.49%]) reactive samples were then confirmed with antigen/antibody assays, immunoblots, and nucleic acid testing. Partial viral sequences were analyzed when possible.Results: The HCV reactivity rate with RDTs was significantly lower than with EIAs (0.55% vs. 3.52%; p < 0.0001). The HIV reactivity rate with RDTs was lower than with third-generation EIAs (1.02% vs. 2.38%; p < 0.0001) but similar to a fourth-generation assay (1.09%). Only 16.0% (57/357) and 21.5% (38/177) of HCV and HIV initial reactive samples, respectively, were repeatedly reactive. HCV and HIV infections were confirmed in 13.2% and 13.7%, respectively, of repeated reactive donations. The predominant HCV genotype 2 and 4 strains in West and Central Africa showed high genetic variability. HIV-1 subtype CRF02_AG was most prevalent.Conclusion: High rates (>80%) of unconfirmed anti-HCV and anti-HIV reactivity observed in several sub-Saharan countries highlights the need for better testing and confirmatory strategies for donors screening in Africa. Without confirmatory testing, HCV and HIV prevalence in African blood donors has probably been overestimated.

Introduction:onychomycosis is defined as a fungal infection of the nails. They represent the main cause of onychopathy. They constitute a public health problem because of their increased prevalence in the world ranging between 20 to 30%. However, they remain under documented in Madagascar. This study was conducted in order to determine the mycological profile of onychomycosis diagnosed in the Parasitology Mycology laboratory of CHU-JRA. Methods:a descriptive retrospective study was taken over a 13-year period from June 2005 to December 2018. The data presenting onychomycosis on the mycological outcome register were included in the study. Results showing the presence of fungi on direct examination and / or culture were considered positive. Results:during the study period, a prevalence of 17.75% (180/1014) was observed. The age of our patients ranged from 3 to 76 years. Women were the most affected in 68.34% (n = 123) with a sex ratio of 0.46. Onychomycosis was localized in 64.65% of the fingers (n = 128). Simultaneous involvement of the hands and feet was found in 10% of the cases (n = 18).Candida albicans (C. albicans)was the most isolated in 33.03% (n = 71) of cases, followed by other species of Candida (24.65%, n = 53) andTrichophyton spp(9.3%, n=17). Mixed infections associating dermatophytes, Yeasts and molds were found in 23.33% (n = 42) of the cases. Conclusion:this is the first investigation dealing with onychomycosis in Madagascar. These data may be useful for future research and in the development of preventive and educational strategies.

Background In the context of the Covid-19 pandemic and following the increasing number of suspicious Covid-19 cases in Madagascar, Malagasy laboratories are overflowed mainly due to lack of human resource and available material restriction. The development and validation of rapid and easy-to-perform diagnostic methods are worth of interest and high priority. The aim of this prospective study was to evaluate the performances of a rapid immunochromatographic test for the detection of SARS-CoV-2 antigen, in comparison to Reverse transcription polymerase chain reaction (RT-PCR). Methods The fluorescence immunochromatographic SARS-CoV-2 antigen test StandardTM Q COVID-19 Ag Test (SD Biosensor Republic Korea) was evaluated in samples derived from patients who were examined for disease categories. Diagnostic accuracy was determined in comparison to SARS-CoV-2 RT-PCR considered as gold standard. Results A total of 200 samples were included; 94 were RT-PCR positive. Median patients’ age was 38.36 years, 63.5 % were male. Overall sensitivity and specificity of the Standard TM Q COVID-19 Ag (SD Biosensor® Republic Korea) were 62.66 % and 100 %, the sensitivity was significantly higher (100 %) in samples with high viral loads (Ct

The External Evaluation of the Quality is an important procedure for assessing the performance of a laboratory. The aim of the present study is to assess the performance of the the biochemistry laboratory of Joseph Ravoahangy Andrianavalona by the dosage of the most prescribed 4 emergency biochemical parameters. It is a retrospective evaluative study of the performance of the biochemistry laboratory of Joseph Ravoahangy Andrianavalona University Hospital Center on a period of 4 months from January 2019 to April 2019 involving 8 samples of External Evaluation of the Quality provided by the Quality Insurance Association of the clinical Biology Laboratories in France. Serum creatinine, blood glucose, uremia and serum electrolytes were dosed on the 8 samples which carried out 32 dosages. During a period of 4 months the accuracy was 94% for the 32 carried out dosages. The precision had been 97% if the Variation Coefficient Ratio (VCR) was below 1.50. The monthly assessment of the 3 studied parameters: serum creatinine, blood glucose and uremia were always good during the 4 months. The imprecision (VCR >1.50) concerned the disease control of the sodium levels in February. The University Hospital Center Joseph Ravoahangy Andrianavalona Biochemistry laboratory was efficient during the External Evaluation of the Quality. Therefore, these results were reliable and contribute to the improvement of the diagnosis, the monitoring and the aftercare of the patients. Every laboratory for medical analysis ought to organize a periodical External Evaluation of the Quality to monitor and improve biological analysis results.

The main reason of this study is to determine from which serum hemolysis index the interference was positive for the kaliemia dosage on automaton BS 300 (Mindray®). The secondary aim was to establish a reliable reporting for the clinicians in front of hemolysed samples for the kaliemia dosage. The hemolysis additions method was run to create an increasing hemoglobin range of concentration varying from 0 to 12 g/dl. To determine an influence of the hemolysis on the measure, the variation limit of 10% was chosen. Statistic analysis was done by XLSTAT, therefore the student paired t-test allowed us to compare parameters rates dosed before and after hemolysis. The threshold for statistical significance was 0.05. According to this study, kaliemia positive interference became significant from hemolysis index [+++]: H4 = 1.5 g/dl.

Alloimmunization to platelet antigens exposes to a serious immunological incident. We report a probable case of a post-transfusion purpura from homozygous sickle cell child alloimmunized against platelet antigen. We detail the challenges of alloantibody identification and transfusion management. These challenges are due to the lack of laboratory techniques for typing HLA and HPA system and the use of leukocyte-depleted (filtered) blood products.

Hemophilia is a hereditary bleeding disorder related to X chromosome due to a coagulation factor deficiency Sixty six patients with hemophilia PwH A and fifty four patients with hemophilia B are until now registered at the HTC in Madagascar The objective of this study is to describe the epidemioclinical and therapeutic profile of arthritis in Malagasy hemophiliacs at the HTC This is a monocentric retrospective and descriptive study extending over a period of months from September to March including cases of arthropathy The age group between and and patients with hemophilia A severe were the most affected Hemarthrosis has been frequent in to times a year Arthropathy reached the knees in of cases and has been debilitating in almost all of cases Care has been essentially based on clot factor substitution Repetition of hemarthrosis episodes leads to arthropathy which can be avoided by early infusion of concentrate clot factor

Background: Currently, the prognosis of hematological malignancies continues to improve in developed countries. In developing countries, such as Madagascar, data on hematological malignancies treatment and outcome are often rare, incomplete, or nonexistent. Until 2011, there was only one cancer center in Madagascar. The Medical Oncology Unit of the Military Hospital of Antananarivo, Madagascar, managed hematological malignancies since December 2012. This pathology represents there the fourth most frequent cancer. Objectives: We aimed to describe the therapeutic aspects and outcome of hematological malignancies managed at this center. Methods: This was a longitudinal study (descriptive and analytic) carried out from December 1, 2012 to August 31, 2015 (33 months). We included all patients followed, then, excluded those without pathologic evidence, cases of monoclonal gammopathy of unknown significance, and cases of solid cancers. Results: We followed up 57 cases of hematological malignancies. The mean age was 49.4 ± 15.5 years and sex ratio (male/female) was 1.71. A total of 34 patients (60%) received specific treatment and 40% of the patients undertook only symptomatic treatment. The median follow-up time was 60 days and mean survival time was estimated at 410 ± 61 days for all patients combined. The mean survival time varied significantly according to the nosological subgroup and to the type of treatment received (P = 0.004). At the end of the study 20 patients (35.1%) died and 17 patients (29.8%) were lost to follow-up. Conclusions: Our results are globally similar to the results found in other African studies. Improving diagnosis, establishing a hematopoietic stem cell transplant center, and improving access to specific therapies should improve the prognosis of our patients.

Background: Anemia is a public health problem with major health consequences. According to the WHO, anemia worldwide is 1.62 billion people (95% confidence interval (CI): 1.50-1.74 billion), which corresponds to 24.8% Of the population (95% CI: 22.9-26.7%).Methods: We studied the clinical and biological data of hospitalized patients who applied for a complete blood count in hematology laboratory of Joseph Ravoahangy Andrianavalona Antananarivo hospital between January and April 2017.Results: Sixty-four percent of hospitalized patients had anemia. Anemia was more common in women. Anemia was encountered mainly in intensive care unit (33.9%) and occurred in perioperative cases in the majority of cases (33.4%).Conclusions: Anemia is a common symptom in hospitals, particularly in intensive care unit. In the Malagasy hospital environment, etiologies are numerous, in particular hemorrhage, sickle cell disease or cancer.

Introduction: Chronic Myeloid Leukemia is a myeloproliferative disorder affecting hematopoietic stem cells. The specific cytogenetic abnormality is translocation (9; 22) which leads to the BCR-ABL fusion gene. Methods: We did a bone marrow aspiration in our laboratory of haematology of university hospital Joseph Ravoahangy Andrianavalona Antananarivo. We studied myelogram and compared its result to the cytogenetic result. Results: Men were the most affected by this pathology and diagnostic average age was 51.2 years. Splenomegaly leukocytosis and myelemia were often present. Myelogram showed granulocytic hyperplasia and the t (9; 22) were present in all the patients. Conclusion: Diagnosis is based on data from the NFS, the myelogram, the search for the Philadelphia chromosome and BCR-ABL fusion gene. These specialized techniques are still inaccessible for Malagasy patients.

Monoclonal gammopathies are common abnormalities and their incidence increases with age. They are detected in roughly 3 % of people older over 50 years and up to 7 % of those over 70 years. Multiple myeloma (MM) is characterized by the proliferation of plasma cells within the bone marrow and excess secretion of monoclonal immunoglobulins. In Madagascar, late performance of biological examinations such as serum protein electrophoresis overestimates MM rates. We studied 54 patient records between March 2009 and January 2015 in the biology laboratory of the Joseph Ravoahangy Andrianavalona university hospital in Antananarivo (Madagascar). Monoclonal gammopathy was associated with multiple myeloma in most cases (88.9 %). Patients' median age was 64.2 years. Men were slightly more affected than women. It is discovered most frequently due to bone symptoms (83.3 %), and anemia is always present. Monoclonal gammopathy is mostly IgG. The bone marrow study showed medullary plasmacytosis. This disease appears most often in the elderly and has a slight male predominance. Bone marrow cytology is mandatory for diagnosis.

En odontologie, l’indication de la pose d’un implant peut etre limitee par le volume du tissu osseux alveolaire residuel. La realisation d’une greffe osseuse ou l’apport d’un materiau de substitution est parfois necessaire. Le PRF (platelet-rich fibrin) est un concentre plaquettaire autogene utilise pour stimuler la neoformation osseuse et favoriser la cicatrisation. C’est une preparation d’utilisation recente. L’interet de ce travail repose sur la gestion des tissus durs et des tissus mous en chirurgie pre-implantaire. Il se donne comme objectif de montrer l’interet clinique d’une technique de preparation simple en vue d’une regeneration tissulaire en chirurgie orale, plus particulierement en implantologie dentaire. Cette etude decrit la preparation du PRF et son utilisation. Il s’agit d’une preparation extemporanee, realisee au « bloc operatoire odontologique » sur des patients en vue d’une pose d’implant. Du sang veineux est preleve, mis dans des tubes sans anticoagulant et passe a la centrifugeuse a 3000 tours/mn pendant 10 mn pour obtenir un gel de PRF. Ce gel est presse entre deux compresses steriles pour obtenir une membrane de PRF. Il est utilise seul ou melange a de l’os autogene ou a un materiau de substitution et place sous le lambeau, contre le tissu osseux residuel. A Madagascar, l’implantologie dentaire s’est developpee seulement depuis quelques annees, et l’apport du PRF apparait tres prometteur. Toutefois, il doit etre utilise avec prudence car la litterature n’est pas unanime sur ses indications.

Background and objectives Hepatitis B virus (HBV) infection is a major public health problem in Madagascar. Its severity is related to the risk of chronicity, especially in case of neonatal contamination. Our objectives were to investigate the prevalence of HBV infection among pregnant patients at the Befelatanana obstetrics and gynecology teaching hospital department (BOGTH) by detecting HBsAg and to evaluate the risk of HBV mother to child transmission by screening for HBeAg. Methods We conducted a 6-month prospective study in the BTHOGD from February 2012 to July 2012. All pregnant patients consulting for antenatal care were screened for HBV serologic markers. Results The prevalence of HBsAg was 1.9% (20 out 1050 screened patients). The average age was 26.51 years (25–30 years). Most patients tested were unaware of their hepatitis B status and only 0.38% had been vaccinated before pregnancy. Only 1 (5%) of the 20 patients with HBsAg was positive for HBeAg. Conclusion Hepatitis B is very frequent in pregnant patients in Madagascar and it is recommended that all pregnant patients be routinely screened for HBsAg. This screening of maternal infection would allow applying prophylactic measures to neonates to decrease the risk of disease chronicity.

Introduction : L’objectif de cette etude est d’analyser les caracteristiques epidemiologiques des fractures dento-maxillo-faciales a Antanarivo (Madagascar). Methodologie : Il s’agit d’une etude retrospective de janvier 2003 a aout 2012. Les dossiers retenus relatent des traumatismes dento-maxillo-faciaux chez des patients admis au centre hospitalier de Soavinandriana (CENHOSOA) Antananarivo. Resultats : Sur les 166 dossiers colliges, le sexe masculin predominait (83,1 %) et l’âge le plus prevalent se situait entre 26 et 35 ans. Les causes les plus frequentes ont ete les accidents de la voie publique (34,9 %) et les agressions (32,5 %). Les fractures mandibulaires et les fractures zygomato-malaires ont ete les plus nombreuses, avec une frequence identique de 25,3 %. La frequence des fractures alveolo-dentaires etait de 10,8 %. Discussion : Nos resultats corroboraient ceux de la litterature. Le patient type est un adulte jeune de sexe masculin. Cette caracteristique est surtout associee aux accidents de la voie publique et aux agressions. Les structures osseuses en relief de la face sont les plus frequemment atteintes car ce sont les plus exposees. Les traumatismes surviennent notamment pendant les week-ends ou les vacances. La notion d’alcool est souvent evoquee mais, dans notre etude, elle n’a ete incriminee que dans 12,7 % des cas.

Introduction La transfusion sanguine est associee a la prevention des complications de la drepanocytose. L’alloimmunisation reste une redoutable complication. A Madagascar, la drepanocytose affecte 1,2 % de la population. Objectif Cette etude a pour objectif de determiner la frequence et la specificite des alloanticorps erythrocytaires chez les drepanocytaires malgaches. Materiel et methode Les auteurs ont mene l’etude au CHU Joseph Ravoahangy Andrianavalona Antananarivo du mois de janvier au mois de septembre 2018. La population d’etude a ete representee par les sujets drepanocytaires ayant recu une ou plusieurs transfusions de PSL avec un mode d’echantillonnage exhaustif. Le prelevement de sang pour la RAI a ete effectue soit lors des controles periodiques, soit lors des reunions de l’association des malades, soit en convoquant le patient, apres consentement eclaire du sujet ou du tuteur legal. Resultats Cent soixante-trois patients ont ete recrutes. La moyenne d’âge etait de 14,6 ± 11,94 ans avec des extremes de 2 ans et 65 ans et une mediane d’âge entre 0 et 10 ans. Le sex ratio M/F etait de 1,11. Le nombre moyen de transfusions etait de 1,78 ± 1,61. La RAI a ete positive dans 10,06 %. Les anticorps retrouves sont ceux du systeme Rh ainsi que du systeme Kidd et MNS, un cas avec plus de trois anticorps probables n’a pas ete determine ( Fig. 1 ). Cette alloimmunisation est correlee au nombre de transfusions recues et a l’origine ethnique du patient. Conclusion Un taux d’alloimmunisation eleve peut s’expliquer en partie par l’inflammation chronique des drepanocytaires. Le suivi immunologique des drepanocytaires ameliorera l’issue des drepanocytaires.

Background: Chronic renal failure is a worldwidepublic health issue. In Madagascar, this condition of heavy care is a medical challenge in a low-income country. In 2016, an estimated 8,000 - 10,000 people with kidney failure and only 1.26% have access to hemodialysis. About 30 patients were able to access live organ transplantation abroad.Our objectives are to set up an HLA histocompatibility laboratory providing HLA typing, search for anti-HLA antibodies, and crossmatch. Evaluate the available structures of the Immunology laboratory. Look for partner laboratories for more specialized research. Materials and methods: The Joseph Ravoahangy Andrianavalona University Hospital Immunology Laboratory is equipped with a conventional PCR and real-time PCR platform, an ELISA immunoassay platform, and inverted fluorescence microscope. Results: The techniques to be implemented in Madagascar for the HLA Laboratory are the HLA typing of the donor and the recipient by the PCRSSP and microlymphocytotoxicity (LCT) technique. The search for anti-HLA antibodies will be done by ELISA and LCT and crossmatch in LCT.We have created cooperation with the Réunion France histocompatibility laboratory for the identification of recipient and donor HLA antibodies and crossmatch by Luminex. Conclusion: The presence of HLA platform in Madagascar will allow preparing the establishment of a future kidney transplant in the country but also for improved management of patients waiting on abroad transplant list in regards of donor selection and post-transplant monitoring. Keywords: Kidney transplant, HLA laboratory, Developing country, Madagascar

Background: Malignant hemopathies constitute a group of pathologies having in common the anomalies of the bone marrow or of the lymphatic system cells. In developed countries, the number and actual distribution of cancers is provided by cancer registries. In Madagascar there is no effective cancer registry and only two studies on malignant hemopathies have been carried out to date, but neither has described their epidemiology and clinical aspects. Thus, we aimed to describe the epidemiology and clinical aspects of malignant hemopathies managed in the Medical Oncology Unit of the Military Hospital of Antananarivo.Methods: It was a cross-sectional and descriptive study carried out at this unit from 1st December 2012 to 31st August 2015 (33 months). Authors included all patients followed, then excluded those without pathologic evidence, cases of monoclonal gammapathy of unknown significance and cases of solid cancers.Results: We followed up 57 cases of malignant hemopathies. The mean age was 49.39±15.46 years and the sex ratio was 1.71. Superficial lymphadenopathy was the most frequent warning signs (31.58%) and lymphomas were most represented (52.63%). There was a significant association between warning signs and diagnosis (p value

Currently, there are 122 hemophiliacs in Madagascar followed at the hemophiliac treatment center of the Joseph Ravoahangy Andrianavalona University Hospital Center (JRA UHC), 55 present hemophilia B and 67 of hemophilia A. In hemophilic patients, the diagnosis of hemarthrosis is obviousin front of articular inflammation. It’s important to determinate the main risk factor as well as predisposition indicators tothe occurrence of "spontaneous" hemarthrosis in hemophiliacsfor prevention andearly careanticipation. In this prospect, the search for potentpredisposition indicator such as immunologicalfactorsis important. This is a case control study on all hemophiliacs seen at (JRA UHC) with hemarthrosis for 7 months. We have descriptively studied the qualitative and quantitative variables consisting in the determination of rheumatoid factors (RF) and the titer of antistreptolysin O (ASLO). Then we studied the statistical correlations. During the study period, we included 30 hemophiliac subjects with hemarthrosis who had an average age of 16.8 years. We had as much hemophiliac A as hemophiliac B; 23.3% practiced sporting activity; 10% had history of angina, involvement of the knee joint predominated at 44% (left 24%). RF positive were present in 26.7% (8/30) predominant in hemophiliacs aged from 19 to 36 (62.5%). The ASLO positive titer was found in 43.3% (13/30) predominant in children from 5 to 13 years (38.5%) with a maximum rate of 1600IU / l. There was no significant relationship between the positivity of the parameters with the presence or absence of hemarthrosis with a value of p = 0.231 and p = 0.06 respectively (p > 0.05). A large number of hemophiliac patients had a combination of clinical and biological signs in relation to diagnose rheumatic fever and rheumatoid arthritis which must be monitored as this could predict the occurrence in the short and medium term of these diseases which could be mistaken for hemarthrosisrelated to hemophilia.

Introduction: Methicillin-resistant Staphylococcus aureus (MRSA) is an important cause of infections. It is well recognized that nasal carriage of S. aureus represents a potent and increasingly prevalent risk factor for subsequent S. aureus infection. However, in Madagascar no data exist concerning this nasal carriage of S. aureus . Methodology: Nasal swabs from 304 different patients attending the Laboratory of Training and Research in Medical Biology of Madagascar were cultured for methicillin sensitive (MSSA) and MRSA. Results: One hundred and sixteen patients had S. aureus in their noses (38.16 ± 5.46%) of whom 45 (14.80 ± 3.99%) had MRSA. A risk factor for MSSA nasal carriage included a history of hospitalization when antibiotics were administered (odds ratio [OR] 2.25, 1.09 - 4.64). Among MRSA nasal isolates, high rate of resistance to other antibiotics was observed, particularly for trimethoprim-sulfamethoxazole (68.89%), erythromycin (66.67%) and ofloxacin (53.33%). Conclusion: Our data showed a high rate of MRSA nasal carriage and a high rate of multidrug resistance. A strategic policy against the spread of multidrug resistant strains is desirable.

La leucemie a tricholeucocytes est une hemopathie maligne rare. En Afrique subsaharienne, tres peu d’etudes ont ete realisees. Le diagnostic repose sur l’identification morphologique des cellules tumorales sanguines et/ou medullaires en s’aidant de la cytometrie en flux. Entre 2009 a 2010, nous avons mene une etude dans le but de rapporter les cas de leucemie a tricholeucocytes diagnostiques au service d’hematologie biologique du CHU Joseph Ravohangy Andrianavalona et, grâce a une collaboration avec le service hematologie biologique du centre hospitalier Sud Reunion, nous avons pu comparer le profil immunophenotypique de nos patients avec la litterature. Durant deux annees, deux patients de sexe masculin âges de 58 et 68 ans ont ete diagnostiques comme leucemiques a tricholeucocytes. La symptomatologie clinique est dominee par une splenomegalie associee a une pancytopenie severe. L’hemogramme et le medullogramme retrouvent la presence de tricholeucocytes. Le profil immunophenotypique de nos patients est celui d’une leucemie a tricholeucocytes classique par la positivite de CD11c, CD103, CD25 et CD123. Mais le premier patient a presente une positivite du CD5 et CD23.

Purpose of the study Due to anemia and maternal, childhood and infancy diseases, blood transfusion is one of the most important medical cares given in sub-Saharan Africa, including Madagascar. World Health Organization encourages worldwide countries to maximize transfusion security. Until now, there was no data within a large population of blood donors. Therefore, the aim of this study was to assess the prevalence and time trends of hepatitis C virus (HCV) among all first-time blood donors coming into the National Centre of Transfusion Supply in Antananarivo. Material and methods This retrospective study was conducted at the National Centre of Transfusion Supply in Antananarivo from 2003 to May 2009. We looked up to all recorded results of systematic screening of blood donor candidates and we took data about all first-time blood donors, including age and gender. Forty-seven thousand five hundred and ten of 47,636 first-time blood donors were retained, the others were excluded due to lack of some data. Results The mean age of our donors was 33.3 years (35.8 for male, and 32.6 for female; P <

L’examen de routine des prelevements bacteriologiques presente generalement deux etapes : l’examen direct et la culture. L’objectif final de ces examens est d’identifier la plupart des bacteries responsables d’infection permettant ainsi au clinicien de justifier une antibiotherapie.

Les carcinomes epidermoides des voies aero-digestives superieures se rencontrent en general sur un terrain domine par l’intoxication ethylo-tabagisme chronique. Ils sont caracterises par une importante agressivite locoregionale. Ce travail a pour objectif de mettre en garde les praticiens contre les consequences fatales des appareils prothetiques mal adaptes. Nous rapportons un cas de carcinome epidermoide de la langue mobile chez une femme de 47 ans. Deux facteurs ont ete incrimines : le tabagisme chronique qui est un facteur de risque reconnu et un facteur declenchant qui aurait ete l’irritation chronique provoquee par le crochet mal adapte d’une prothese dentaire amovible. Ainsi, la presence d’une agression chronique, aussi minime soit-elle, sur un terrain a risque, doit etre supprimee afin d’eviter cette transformation maligne. L’importance de la frequence des recidives locoregionales en moins d’un an postoperatoire et l’issue fatale liee a ce type de cancer amenent les chirurgiens a effectuer des exereses en bloc, au large de la tumeur, quelquefois tres mutilantes, associees ou non a un evidement ganglionnaire. La radiotherapie postoperatoire complementaire, associee ou non a une chimiotherapie, permet d’ameliorer la survie des patients.

Summary We present a case of poly-agglutinability syndrome associated with non-Hodgkin lymphoma observed in a 45-year-old woman hospitalized for asthenia, pallor, and cervical lymphadenopathy and no fever in previous history. Poly-agglutination syndrome was fortuitously discovered during erythrocyte grouping. Tn poly-agglutination is strongly suspected in pancytopenia, inconclusive bone marrow results and the absence of infection in the patient. This hypothesis could not be confirmed because we did not have lectin Dolichos biflorus, Ulex europaeus, Salvia horminum, Salvia sclarea and Arachis hypogoea nor treatment with papain nor with polybrene. In our case, the delay between the onset of this poly-agglutinability syndrome and malignant lymphoma has not been established. This possible association, found in this patient, justifies the need for careful clinical observation of patients with syndrome of poly-agglutinability in blood grouping.

Congenital afibrinogenemia is characterized by the complete absence of fibrinogen, the precursor of the major protein constituent of the blood clot, fibrin. Extensive allelic heterogeneity has been found for this disorder and more than 40 mutations, the majority in FGA, have been identified in homozygosity or in compound heterozygosity. However, the continuous genetic analysis of additional patients still allows the identification of novel mutations and thus the greater understanding of fibrinogen structure and function. Here we report the identification of a novel missense mutation in FGA exon 1 affecting the translation initiation codon: c.1 A>T (ATG>TTG) M1L, identified in a young boy from Madagascar in compound heterozygosity with a second mutation in FGA exon 4: c.385 C>T (CGA>TGA) R129X. The patient suffered from occasional severe arthralgias (shoulder, knee) most likely caused by intra-articular bleeding with subsequent inflammation.

Summary This study assessed the phenotypic and allelic profiles of ABO and Rhesus D blood group system among first time blood donors at the National Centre of Blood Supply of Antananarivo. We collected through this retrospective study all data registered during 7 years of practice (from 2003 to 2009). Age and sex were analysed with the result of ABO and RhD screening. They were tested both with Beth Vincent and Simonin tests which were performed in a plate, by using commercial monoclonal antibody (Diaclone® et Eryclone®), and home-made red cells tests. The Rh D was performed with the same commercial kits. The frequencies of alleles were calculated by using Bernstein method. Data about 45 857 donors were obtained. A male predominance (80.46%) was found and most of our donors were aged

Introduction La drepanocytose, affecte plus d’un pour cent de la population malgache. L’echange transfusionnel rentre dans la pratique de lutte se basant sur la physiopathologie et la gestion des moyens techniques disponibles. Methodologie De janvier a decembre 2016, l’etude a ete faite chez les drepanocytaires en service reanimation a l’hopital JRA d’Antananarivo lequel prend en charge les drepanocytaires necessitant une hospitalisation. L’indication, l’âge et le sexe du patient et l’evolution immediate ont ete tenus en compte. Resultats Cinquante-quatre drepanocytaires ont beneficie d’un echange transfusionnel. L’âge moyen des malades etait 10,2 ans [12 mois–44 ans], le sex-ratio M/F de 1,3. Differentes circonstances ont justifie cet acte dont les complications de la maladie: syndrome thoracique aigů(n = 5), priapisme(n = 2), ulcere cutane(n = 1), accident vasculaire cerebral(n = 5), a titre prophylactique devant une anomalie de resultat du Doppler transcrânien(n = 2) ou en cas de douleur importante rebelle aux analgesiques majeurs(n = 10), surveillance de la grossesse(n = 4), prevention d’une complication postoperatoire(n = 25). Le volume de sang a ete determine selon le poids du patient, le culot globulaire HbS negatif phenotype avec serum sale isotonique remplacaient le sang total enleve. L’evolution immediate etait favorable dans tous les cas, une autre seance a ete programmee dans plus de la moitie des cas selon l’etat clinique et l’objectif a atteindre. Conclusion L’echange transfusionnel partiel permet d’obtenir une issue favorable des complications de la drepanocytose dans un contexte de plateau technique limite.

Objectives We wanted to update the distribution of community-acquired uropathogens and to estimate their susceptibility profile to newly available antibiotics in Antananarivo (Madagascar). Materials and methods We conducted a 3-year preliminary study (2011–2013) on bacteria isolated from the urine of patients at the Laboratory of Training and Research in Medical Biology (Antananarivo). Results Three hundred and fifty-seven pathogens were isolated: 234 (65.55%) Gram-negative bacilli and 123 (34.45%) Gram-positive cocci. The most commonly isolated bacteria were Escherichia coli (89 strains) followed by Staphylococcus aureus (48 strains). Thirty-three percent of Gram-negative bacilli were resistant to 3CG. Forty percent of Klebsiella pneumoniae strains were significantly resistant to imipenem ( P = 0.01). Conclusions The increased resistance to newly available antibiotics and the increased rate of Gram-positive cocci strains require a drastic surveillance of antibiotic resistance to ensure appropriate empirical treatment.

Lactivite de la pristinamycine a ete evaluee par la methode de diffusion en agar ou la galerie ATB PNEUMO ainsi que par la determination des CMI en milieu liquide selon les normes du NCCLS vis-a-vis de 749 souches de S. pneumoniae isolees en Aquitaine en 1999. La cinetique de bactericidie de la pristinamycine a ete etudiee vis-a-vis de dix souches de S. pneumoniae sensibles et resistants a l'erythromycine. Toutes les souches testees par la galerie ATB PNEUMO etaient sensibles a la pristinamycine, 6,8 % des souches testees par la methode de diffusion en agar etaient intermediaires ou resistantes. Cependant les CMI de la pristinamycine determinees par la methode des dilutions en milieu liquide vis-a-vis de ces souches etaient < 1 mg/L. Ces resultats suggerent que les diametres d'inhibition sont mal correles avec les CMI pour les pneumocoques resistants a l'erythromycine et que la determination de la CMI est necessaire. Les resultats des courbes de bactericidie montrent une tres bonne et rapide activite bactericide de la pristinamycine en deux heures pour des concentrations egales a 4 x CMI et en quatre heures pour 2 x CMI.

Introduction La transfusion sanguine expose a des risques malgre son objectif therapeutique. L’atteinte renale post-transfusionnelle est encore controverse. Nous rapportons un cas de nephrite tubulo-interstitielle aigue (NTIA) post-transfusionnelle vu dans notre service. Observation Un homme de 67 ans, postopere d’un pontage aorto-bifemoral, admis dans le service de reanimation pour un accident transfusionnel. Il a recu un CGR isogroupe et isorhesus en fin d’intervention. Apres la transfusion, il presentait un trouble hemodynamique severe, une fievre a 38,5 °C et une insuffisance renale aigue oligo-anurique a 350 μmol/L de creatininemie versus 75 μmol/L. Le test de Coombs direct et la RAI etaient positifs orientant vers un accident transfusionnel immediat. La prise en charge consistait a une correction hemodynamique et une corticotherapie. L’evolution a ete marquee par une stabilite hemodynamique et une amelioration de sa fonction renale associees a une polyurie (5000 mL/24 h). Le diagnostic de NTIA immuno-allergique post-transfusionnelle a ete evoque. La biopsie renale pour histologie n’etait pas faite. L’evolution etait favorable sous corticotherapie. Discussion Les NTIA immuno-allergiques representent environ 40 a 60 % des NTIA. Malgre la controverse sur l’atteinte renale post-transfusionnelle, une etude recente a montre de facon significative cette possibilite ( p Conclusion La NTIA post-transfusionnelle est rare et plus souvent sous-estimee, mais toujours a craindre devant les symptomes evocateurs.

This study assessed the phenotypic and allelic profiles of ABO and Rhesus D blood group system among first time blood donors at the National Centre of Blood Supply of Antananarivo. We collected through this retrospective study all data registered during 7 years of practice (from 2003 to 2009). Age and sex were analysed with the result of ABO and RhD screening. They were tested both with Beth Vincent and Simonin tests which were performed in a plate, by using commercial monoclonal antibody (Diaclone(®) et Eryclone(®)), and home-made red cells tests. The Rh D was performed with the same commercial kits. The frequencies of alleles were calculated by using Bernstein method. Data about 45,857 donors were obtained. A male predominance (80.46%) was found and most of our donors were aged40 (74.92%). 98.90% of the donors were Rh D positive. Phenotypic distribution of each ABO antigen was, respectively, 22.61, 29.66, 6.13 and 41.60% for A, B, AB and O antigen. Allelic frequencies of A, B and O were 0.1559, 0.1987 and 0.6454. These results confirmed the fact that Madagascan population had admixed ethnic origin.

Introduction La prise en charge de l’hemophilie reste toujours tres difficile en l’absence de concentre de facteur surtout dans les pays en voie de developpement. L’objectif de cette etude est d’evaluer la correlation entre l’evolution de taux de facteur VIII et la quantite de PFC dans la prise en charge d’une hemophilie A severe. Methodologie C’est une etude realisee sur un cas clinique au service de reanimation chirurgicale CHU JRA chez un homme de 33 ans ; hemophile A severe subissant un traumatisme abdominal avec hematome intra-abdominal abondant necessitant une chirurgie. On a effectue un dosage quotidien de facteur VIII depuis son admission avant la premiere transfusion de PFC jusqu’a sa sortie. On a etudie la correlation entre l’evolution de taux de facteur VIII et la quantite de PFC recue par jour durant son sejour en reanimation par le coefficient de correlation lineaire de Pearson. Resultats Le taux de facteur VIII a l’entree etait a 0,7 %. Il a recu en moyenne 3 poches de PFC par jour permettant une augmentation de taux de facteur VIII jusqu’a 18 %. La courbe d’evolution de taux de facteur VIII en fonction de la quantite de PFC a transfuser pendant son sejour en reanimation, qui etait de 21 jours (Fig. 1), a montre une correlation positive entre la quantite de PFC et le taux de facteur VIII avec un coefficient de correlation r = 0,67 a 95 % d’intervalle de confiance ( p = 0,007) et une augmentation lineaire de taux de facteur VIII en fonction de la quantite de PFC (Fig. 2). L’evolution etait favorable et aucun effet indesirable du receveur n’a ete note. Conclusion La transfusion du PFC constitue une alternative en cas du syndrome hemorragique de patients hemophiles en absence de concentre de facteur. La correlation entre l’augmentation de taux de facteur et la quantite de PFC merite une etude en tenant compte des effets indesirables du receveur qui peuvent aggraver la situation.

Studies on the possible influence of periodontal disease on preterm birth (PB) and/or low birth weight (LBW) remain inconclusive especially due to the difficulty of assessing the numerous pregnancy risk factors. The aim of this study is to compare periodontal parameters in non-smoking pregnant women in Madagascar.A cohort study with 204 pregnant women (mean age: 25.6 years) was conducted in public prenatal care health clinics in Madagascar. Socioeconomic and obstetric information was obtained. Periodontal parameters, such as periodontal probing depth and clinical attachment loss (AL), were recorded during the second semester of pregnancy.The mean gestational age was 37.8 weeks. At delivery, 42 newborns (20.6%) were PBs (37 weeks) and 22 newborns (10.8%) were of LBW (2,500 g). Nine (4.4%) newborns were PBs and of LBW (PLBW), and 149 newborns (73%) were of normal birth. The mean plaque index and papillary bleeding index were significantly higher (P0.05 and P0.001, respectively) in the PB group than in the normal birth group. Periodontitis (at least three sites from different teeth with clinical ALor=4 mm) was significantly associated with PB (P0.001), LBW (P0.001), and PLBW (P0.01). The rates of periodontitis were considerably higher in PB (78.6%), LBW (77.3%), and PLBW (77.8%) groups than in the full-term (8.6%), normal weight (16.5%), and normal birth (2.7%) groups.The strong association among periodontitis, PB, and LBW in this study highlights the need to consider the periodontal status of pregnant women in Madagascar.

Une etude sur une periode de trois mois allant de juin a aout 2014 sur les patients drepanocytaires vus en suivi medical au service hematologie du CHU HJRA Antananarivo a permis d’en degager la conduite transfusionnelle. En sachant que seuls 25 % des besoins transfusionnels a Madagascar sont couverts par les donneurs de sang benevoles, la disponibilite des produits sanguins n’assure pas la prise en charge adequate des drepanocytaires. Dans l’optique d’une utilisation rationnelle des produits sanguins mais aussi en tenant compte du traitement recommande pour les drepanocytaires, l’attitude transfusionnelle etait dictee par les signes cliniques et biologiques presentes par ces malades. Resultats Quatre-vingt-quatre drepanocytaires suivis pendant cette periode dont 47 du genre masculin et 37 feminin, l’âge moyen 15 ans (2–48), le taux moyen d’hemoglobine de 87,2 g/L (35–43). Cinq patients (5,95 %) avec un taux d’hemoglobine inferieur a 55 g/L, transfusion de culot globulaire ; 14 (16,67 %) (5 presentant des signes d’intolerance de l’anemie taux 55–69 g/L : transfusion de culot globulaire, 9 avec un taux de reticulocytes correct presentant un syndrome douloureux : rehydratation parenterale). Quarante-deux patients ont un (50 %) taux d’hemoglobine entre 70–100 g/L. Vingt-trois (27,4 %) avec taux d’hemoglobine 100–143 g/L, dont 7 (8,33 %) ayant un taux entre 134 et 143 g/L d’hemoglobine presentant des symptomes tels que paresthesies et/ou douleur des extremites, cephalees : saignee avec rehydratation IV et 16 non symptomatiques, avec taux entre 130–100 g/L d’hemoglobine, rehydratation IV. Dans tous les cas, les patients ont evolue favorablement.