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Pulmonary Arterial Hypertension in Congenital Heart Disease with Left-to-Right Shunt: According to a Retrospective Study at Albert Royer’s National Children’s Hospital Center

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Open Journal of Pediatrics 2023年第5期13卷 649-656页

作者： Aliou Mar Coundoul Khadim Bop abdou aziz faye Amadou Lamine Fall Idrissa Demba Ba Papa Mactar faye Department of Cardiology Albert Royer’s National Children’s Hospital Dakar Senegal Pediatric Ward Abass Ndao Hospital Center Dakar Senegal

Pulmonary arterial hypertension PAH is a progressive disease characterized by an increase in pulmonary arterial pressure and resistance. It often complicates congenital heart disease with a left-to-right shunt. The objective of this study is to evaluate the evolutionary profile of the pulmonary pressures of children with congenital heart disease with left-to-right shunt and to identify the factors favoring an evolution towards PAH. This is a retrospective, descriptive and analytical study over a period of four years and six months (from January 1, 2016 to June 30, 2020) at the Center National d’Enfant Albert Royer in Dakar on a series of 87 cases. The hospital frequency was 3.98 per thousand, and the incidence of PAH was 9.44%. The sex ratio of 0.74. The average age was 44.76 months. The average time between the onset of symptoms and the diagnosis of heart disease is 78.81 days. Dyspnea was found in 70.11% of cases, the burst of pulmonary B2 was found in 55%. Global heart failure was noted in 39.08% of cases. Cardiomegaly was found in 89.66% and pulmonary hypervascularization was found in 57.72% of cases. CIV was present in 54.02% of cases, followed by PCA in 21.14% and CAVc in 18.39% of cases. furosemide was used in 97.70% of cases and Captopril in 74.71% of cases. Sildenafil was used in 10.34% of patients, and 12.64% of patients benefited from surgical management. Eisenmenger syndrome was found in 12.64% of patients. PAH in these heart diseases is a formidable and frequent complication, due to an increase in precapillary flow. The major improvement in mortality and morbidity is early surgical management, in the first months of life, to prevent pulmonary vascular disease.

关键词： PAH Left-to-Right Shunt Einsenmenger Syndrome

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Cardiac Echography in Pediatrics at the Regional Hospital of Diourbel: Indication and Result

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World Journal of Cardiovascular Diseases 2023年第9期13卷 556-564页

作者： Aliou Mar Coundoul abdou aziz faye Khadim Bop Amadou Lamine Fall Papa Moctar faye Ndeye Fatou Boye Ndeye Tenning faye Ousmane Ndiaye Pediatric Service Cheikh Ahmadoul Khadim National Hospital Center of Touba Diourbel Diourbel Senegal Albert Royer National Hospital Center Dakar Senegal Henrich Lû ckbe Center Diourbel Senegal

Childhood heart disease is a real public health problem. In our contexts, care remains a major challenge. Doppler echocardiography remains the essential examination for diagnosis. The objective of our study was to describe the different clinical indications for cardiac ultrasound in children and the main pediatric heart diseases at the Diourbel Heinrich Lübke Regional Hospital. This was a descriptive and analytical retrospective study spanning from 2020 to 2022;covering a series of 140 cases. The study was carried out using patient clinical observation sheets and consultation sheets. We identified 140 ultrasounds. The average age of patients was 35.96 months with extremes of 0.03 months and 192 months. The female sex was predominant, with an M/F sex ratio of 0.72. Ultrasound was systematically requested in 67.14% of the study population. The indications found were mainly: heart murmur, polymalformative syndrome, respiratory failure, bronchiolitis, cardiomegaly, suspicion of heart disease, cardiomegaly, pre-therapeutic and pre-operative assessment. A total of 71 cardiac abnormalities were found in 65 patients, i.e. a prevalence of 46.42%. Congenital heart disease was more frequent (found in 49 patients, a prevalence of 35%) and was dominated by the CIA. There was a female predominance in almost all heart diseases except in the case of endocarditis where codominance is found. Our study has made it possible, through echocardiography, to evaluate the indications for echocardiography in children, to determine the prevalence of heart disease in children and also to assess the relevance of requests for echocardiography.

关键词： Echocardiography Pediatrics Indications Diourbel

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Hydrogeophysical and Structural Investigations Using VES: A Case Study of Dosso Region in the Southwestern Part of the Meso-Cenozoic Iullemmeden Basin (Southwestern Niger)

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Open Journal of Geology 2024年第1期14卷 50-80页

作者： abdou Ali Ibrahim Huguette C. Emvoutou Alain Zanga Konaté Moussa Serigne faye Department of Life and Earth Sciences Ecole Normale Supérieure Université Abdou Moumouni Niamey Niger Department of Earth Sciences Faculty of Sciences University of Douala Douala Cameroon Department of Geology Faculty of Sciences and Techniques University Cheikh Anta Diop of Dakar Dakar Senegal Department of Geology Faculty of Sciences and Techniques Université Abdou Moumouni Niamey Niger

A regional study connecting geolelectrical surveys with geology and hydrogeology was carried out in the western part of the Iullemmeden basin, precisely in the Dosso region in Niger. One hundred and four (104) vertical electrical sounds have been realized, among them nineteen representative were thus be used as parametric surveys. The local resistivity values of the geological formations of Quaternary range from 100 Ω⋅m to 1000 Ω⋅m (sands and lateritic sandstones). The Oligo-Miocene formation of the Continental terminal (Ct) shows resistivity values ranging from 1 to 5 Ω⋅m (brackish groundwaters) to 1500 Ω⋅m (clay sandstones) while the Upper Cretaceous formation of the Continental “hamadien” (Ch) indicates values ranging from 20 Ω⋅m (sandy clay) to 5000 Ω⋅m (clayey sandstones). The geological formations of Paleocene have values from 2 Ω⋅m (marls) to 60 Ω⋅m (calcareous marl), while the Precambrian basement exhibits values of granite around 300 Ω⋅m to 60,000 Ω⋅m. The update of the structural settings reveals many faults in the study area which explain both the shape of the basin and the geometry of the aquifers. Tectonics is also consistent with the hydraulic characteristics of aquifers. In addition, brackish groundwaters were identified as perched aquifer groundwaters in different depths in Dosso region. They probably come from the marine brines during the regression of the Paleocene Sea.

关键词： Vertical Electrical Soundings Continental Terminal Continental “Hamadien” Brackish Groundwaters Iullemmeden Basin Dosso Region

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Interest of Cardiac Rehabilitation in Patients with Heart Disease in a Cardiology Department in Senegal

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World Journal of Cardiovascular Diseases 2024年第4期14卷 217-227页

作者： Awa Ba-Diop abdou Khadir Sow Rim Mohamed Khaled Mor Diaw Mame Saloum Coly Fulgence abdou faye Amadou Ndiadé Bamba Gaye abdoulaye Ba abdoulaye Samb Laboratory of Physiology and Functional Explorations Department of Medicine Alioune Diop University of Bambey Bambey Senegal IRL3189 Environment Health Societies CNRS-UCAD Dakar Senegal The African Research Network Noncommunicable Diseases Dakar Senegal Laboratory of Physiology and Functional Explorations FMPOS UCAD Dakar Senegal Laboratory of Physiology and Functional Explorations UFR Sant&#233 UAS of Thi&#232s Thi&#232s Senegal INSERM U970 Team 4 Paris France

Cardiac rehabilitation helps improve the prognosis and quality of life for patients with heart disease. To show its interest in the African context, in the management of heart disease, a prospective study was carried out. Its objective was to evaluate the effects of physical rehabilitation on cardiac function. Methods: Patients were evaluated at the beginning and at the end of cardiovascular rehabilitation by cardiovascular, biological, and echocardiographic parameters including the size of the heart chambers, the kinetics of the walls, and the systolic function of the ventricles. Results: The study involved 12 patients, 67% of whom were men. After cardiac rehabilitation, the mean hemodynamic constants had not been significantly modified. However, a significant decrease in Total-Cholesterol, LDL-Cholesterol and triglyceride levels was noted. Mean fasting blood sugar decreased from 1.25 ± 0.48 g/L to 0.92 ± 0.18 g/L and glycated hemoglobin from 7.72% ± 0.01% to 6.45% ± 0.008%. The echocardiographic parameters studied showed an improvement in the dilation of the heart chambers in 8.33% of the patients, the normalization of the ejection fraction of the left ventricle in 16% patients, the improvement of the kinetic disorders in 16% of patients and recovery of right ventricular systolic function in all patients. Conclusion: Cardiac rehabilitation as a secondary preventive measure for cardiovascular disease has contributed significantly to improving the clinico-biological parameters of the disease.

关键词： Cardiac Rehabilitation Heart Disease Cardiovascular Disease

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Alternative Phenotypic Profile for B-Cell Abnormality in a Case at Zinder National Hospital

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Open Journal of Blood Diseases 2024年第1期14卷 8-16页

作者： Brah Moustapha Maman Amadou Djibrilla-Almoustapha Moustapha Elhadji-Chefou abdoul-aziz Garba Badé Malam-abdou Department of Medicine Université André Salifou de Zinder Zinder Niger Department of Medicine H&#244pital National de Zinder Zinder Niger Department of Medicine Université Abdou Moumouni de Niamey Niamey Niger Department of Medicine Université Dan Dicko Dan Koulodo de Maradi Maradi Niger

Introduction: Since it is impossible to establish a diagnosis in the presence of hyperlymphocytosis not secondary to lymphocytic hyperactivation, we considered a B-lymphoid hematopathy with a non-specific phenotypic profile. We report one case of this. Observation: This is a forty-eight (48) year old patient with hyperlymphocytosis at 139,000 elements per cubic millimeter, heterogeneous splenomegaly at 25.6 cm in diameter on abdominal ultrasound without detectable deep or peripheral lymphadenopathy. Peripheral blood cytology shows lymphocyte cell proliferation suggestive of the circulating phase of chronic lymphoproliferative B syndrome. The expression profile of cell membrane markers did not allow for the definition of a specific phenotypic profile. Faced with this immunophenotyping result, we considered a B-lymphoid hemopathy with a non-specific phenotypic profile. After three courses, the MINICHOP treatment was used to achieve partial remission with wasting of more than 80% of the evaluable masses. Conclusion: Despite the contribution of immunophenotyping in the diagnosis of lymphoproliferative syndromes, it is possible to consider the diagnosis of a B-lymphoid hemopathy with a phenotypic non-specific profile of CD45+, monotypic kappa, CD19+, FMC7+, CD22+, CD5−, CD79b−, CD23−, CD43−, CD38−, CD200−.

关键词： Hyperlymphocytosis CLL Immunophenotyping MINICHOP

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Late Diagnosis of Turner Syndrome in Adulthood;a Case Study from the Endocrinology-Diabetology Nutrition Department of the National Hospital of Pikine Senegal

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Open Journal of Endocrine and Metabolic Diseases 2024年第5期14卷 115-122页

作者： Nafy Ndiaye Yakham Mohamed Leye Ngone Diaba Diack Mamadou Ba Bibatou abdoulaye Leye abdou aziz Diouf Alassane Diouf Jean Pascal Demba Diop Internal Medicine/Endocrinology-Diabetology Department Teaching Hospital of Pikine Cheikh Anta Diop University Dakar Senegal Department of Gynaecology-Obstetric Teaching Hospital of Pikine Cheikh Anta Diop University Dakar Senegal Department of Human Genetic Faculty of Medicine Pharmacy and Odontology Cheikh Anta Diop University Dakar Senegal

Introduction: Turner syndrome is a rare genetic disorder characterised by the presence of one X chromosome and the absence of part or all of an X or Y chromosome and patients may experience delayed puberty and infertility. Our study aimed to evaluate the diagnostic delay in our practice and analyze the impact of this diagnostic delay on the effectiveness of patient management. Patients and Methods: Turner syndrome patients were identified from the endocrinology-diabetology nutrition department Database We examined the records of patients in whom the karyotype analysis favoured Turner syndrome. Results: We have selected 5 patients’ records of female patients with Turner syndrome. The mean age was 25, ranging from 19 to 29 years. Primary amenorrhea and characteristic dysmorphic features were observed in all patients. One married patient, who sought consultation for infertility, expressed a desire for pregnancy. Short stature was identified in 3 patients. Primary hypothyroidism and hypertension were respectively found in 1 and 2 patients. Gonadal dysgenesis was noted in 100% of cases. Karyotype analysis revealed monosomy X in 2 patients and mosaic patterns in others. All patients received estrogen-progestin treatment. Antihypertensive therapy was initiated for 2 patients. One patient is on L-thyroxine. In the short term, treatment led to the onset of menstruation after the initial months. Evaluation of treatment efficacy on internal genital organs is yet to be performed. Due to uncertain benefits at this age, growth hormone therapy was not considered for our patients. We provided counseling on assisted reproductive options for couples desiring to conceive. In our study, all patients were placed on estrogen-progestin therapy, and the response appeared favorable. Conclusion: In our practice, the diagnosis of Turner syndrome occurs very late in adulthood, at an age when growth hormone treatment is nearly ineffective. Treatment typically revolves around estrogen-progestin

关键词： Turner Syndrome Primary Amenorrhea Adult Pikine

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Results of the First 10 Cases of Coronary Bypass Surgery in Senegal

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World Journal of Cardiovascular Surgery 2024年第4期14卷 45-60页

作者： Papa Amath Diagne Jean Claude Ndiogou Dione Papa Ousmane Ba Momar Sokhna Diop El Hadji Boubacar Ba Momar Dioum Marième Soda Mbaye Moussa Seck Diop Mory Camara abdou Lahad Mbengue abdou aziz Thiaw abdoul Khoudoss Diallo Moussa Mareme Samba Dialtabé Ibrahima Guéssé Ba Anta Mbaye Sall Papa Salmaneba Amadou Gabriel Ciss Department of Cardiovascular and Thoracic Surgery FANN National University Hospital Dakar Senegal

This is a review of the first 10 coronary artery bypass surgeries performed by the local team. The mean age was 62 years old [45 - 74]. The patients were predominantly male, with a M/F ratio of 4:1. Cardiovascular risk factors were mainly myocardial infarction (MI) (60%), hypertension (50%), obesity (40%) and diabetes (30%), with at least two risk factors per patient. Angina was the main symptom (80%). The average time from presentation to surgery was 8 months. The mean Euroscore 2 was 2.92 ± 1.65 [1.33 - 6.60]. Coronary angiography revealed an average of 2 lesions per patient, with 3-vessel involvement in 70% of cases: the Interventricular artery (IVA) (100%), the right coronary artery (90%) and the circumflex artery (70%). On echocardiography, the mean Left ventricular ejection fraction (LVEF) was 59% [33% - 76%]. All patients underwent median sternotomy with bypass grafting. The average duration of the cardiopulmonary bypass was 150 min [46 - 275 min];that of aortic clamping, 120 min [43 - 232 min]. The grafts used were internal thoracic artery (ITA) in 100% of cases (80% on the left and 20% on the right), and the great saphenous vein (GSV) in 60% of cases (50% on the left and 10 on the right). Double bypass was performed in 60% of cases, single bypass in 30% and triple bypass in 10%. The bypasses were performed on the IVA (100%), the middle lateral of the circumflex (30%) and the bisector (20%). The average time to extubation was 11 hours and the length of stay in the intensive care unit was 7 days [03 - 17 days]. One patient had a reoperation on Day 0 post-op. The average hospital stay was 13 days [06 - 27 days]. Complications occurred in nine of the patients (90%), with a predominance of infectious and neurological complications. Overall operative mortality was 3%, all in intensive care.

关键词： Coronary Bypass Surgery Coronary Lesions Cardiac Surgery Senegal

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Reversible Semi-Fragile Watermarking Technique for Integrity Control of Relational Database

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Engineering（科研） 2024年第9期16卷 309-323页

作者： Ali Hamadou abdoul aziz Issaka Hassane Lanciné Camara Harouna Naroua Department of Mathematics Dan Dicko Dankoulodo University of Maradi Maradi Niger Social Science and Management University of Bamako Bamako Mali Department of Mathematics and Computer Science Abdou Moumouni University Niamey Niger

Reversible watermarking schemes for relational database are usually classified into two groups: robust schemes and fragile schemes. The main limitation of existing reversible fragile methods is that they cannot differentiate between legal and malicious modifications. In this paper, we introduce a novel lossless semi-fragile scheme based on prediction-error expansion for content protection of relational database. In the proposed method, all attributes in a database relation are first classified according to their sensitivity to legitimate updates. Then, the watermark is embedded by expanding the prediction error of the two least significant digits of securely selected attributes. At watermark extraction, the proposed method has the ability to fully restore the original data while detecting and localizing tampering. The applicability of our method is demonstrated theoretically and experimentally.

关键词： Semi-Fragile Watermarking Integrity Control Reversibility Prediction-Error Expansion

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Efficacy of Different Fungicides against Mango Anthracnose in Senegalese Soudanian Agroclimate

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American Journal of Plant Sciences 2014年第15期5卷 2224-2229页

作者： Papa Madiallacke Diedhiou Yaya Diallo Rokhaya faye abdou aziz Mbengue abdou Sene Département de Biologie végétale Université Cheikh Anta DIOP de Dakar Dakar Sénégal Département Productions Végétales et Agronomie UFR des Sciences Agronomiques d’Aquaculture et des Technologies Alimentaires Université Gaston Berger Saint-Louis Sénégal

Anthracnose is the one of the most devastating diseases of mango produced in the southern part of Senegal. The field trials against post harvest rot due to anthracnose took place in three orchards over two production seasons, in 2009 and 2010. Three systemic fungicides (thiophanate methyl, azoxystrobin and myclobutanyl) and one contact fungicide (mancozeb) were tested for their efficacy. The first treatments in 2009 took place in the rainy season, while 20% of mangoes on trees exhibited anthracnose lesions. At ripening stage, 100% of fruits from non treated control mango trees were affected by anthracnose and got rotten, while between 73.2% and 80% of mangoes ripened free of disease when treated with thiophanate methyl. With the treatment with azoxystrobin, between 46.6% and 60% of fruits were not infected. Treatment with myclobutanyl was less effective. This level of effectiveness was clearly improved in 2010 by preventive spraying, days ahead of onset of the rainy season, before the appearance of anthracnose symptoms on fruits. The level of effectiveness was higher respectively for thiophanate methyl (between 96% and 100% of fruits not infected) and azoxystrobin (between 84% and 96% of fruits not infected).

关键词： Anthracnose Fungicides Mango Soudanian Agroclimate Senegal

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冷战后中国与塞内加尔外交关系的发展

冷战后中国与塞内加尔外交关系的发展

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作者： abdou Mbar faye（阿布杜）辽宁大学

学位级别：硕士

十年来,中华人民共和国已成为非洲国家的首要合作伙伴。这个重大飞跃带来了巨大的变化,重新配置了撒哈拉以南的权利平衡,给非洲国家以回旋的余地。塞内加尔与中国在1971年正式建立了外交关系,可在那之后根据国家之间没有友谊只有利益的...

十年来,中华人民共和国已成为非洲国家的首要合作伙伴。这个重大飞跃带来了巨大的变化,重新配置了撒哈拉以南的权利平衡,给非洲国家以回旋的余地。塞内加尔与中国在1971年正式建立了外交关系,可在那之后根据国家之间没有友谊只有利益的原则,又切断了这段关系。在与中国决裂的那段时间,塞内加尔与台湾达成了外交关系,但是关于那段“友谊”,我们知道在短短几年后便进入尾声。在历经十一年之后,于2005年,中华人民共和国和塞内加尔重新建立了外交关系。本文论述了中塞两国在新的战略伙伴关系中发展外交关系,换句话说就是外交关系模式的变化。通过经济,金融,政治,军事合作等不同方面的合作,中塞两国重新建立的外交关系使塞内加尔的合作伙伴多元化,西方合作伙伴如法国和美国获得更多自主权。国际关系更具灵活性。中国和塞内加尔的外交关系恢复是塞内加尔当前地缘政治和经济背景的现实和务实视角的一部分。对中国来说,这是一种增加在非洲和国际社会影响力的手段,这要归功于塞内加尔的地理位置及其政治稳定。这是中国巩固和扩大在这一战略地区的存在的重要资产。本文展示了中塞两国外交关系的年表,着重阐述了其合作的来龙去脉。并显示了两国关系的发展,以及对当前国际关系格局及其相关问题的影响。

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