检索结果-南通市图书馆

Intra-Seasonal and Annual Variation of Aerosols and Their Radiative Impact in the Sahelian Zone of Burkina Faso

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Atmospheric and Climate Sciences 2019年第1期9卷 62-74页

作者： Bado Nébon Mamadou Simina Dramé Saidou Moustapha Sall Korgo Bruno demba ndao niang Kieno P. Florent Bathiebo Dieudonné Joseph Laboratoire d’Energies Thermiques Renouvelables (LETRE) Université Ouaga I Pr Joseph KI ZERBO Ouagadougou Burkina Faso Laboratoire de Physique de l’Atmosphère et de l’Océan Siméon-Fongang Université Cheikh Anta DIOP Dakar Sénégal

This paper deals with the characterization of aerosols in the Sahelian zone, particularly in Burkina Faso based on MODIS observations and in situ measurements of the AERONET network on the Ouagadougou site (12.2°N, 1.4°W). Thus, a seasonal spatial distribution of aerosols made over the period from 2001 to 2016 gives a very great variability of aerosols in Burkina Faso, whose maxima are encountered in Spring, characterized by winds from the North East. This seasonality of aerosols is also shown by the annual cycles of optical, radiative and microphysical parameters measured by AERONET between 1999 and 2006. Moreover, an analysis of these parameters shows the prevalence of mineral dusts characterized by low values of the Angstrom coefficient (α440-870 0.9) and the cooling noticed in the bottom of atmosphere (BOA) and at the top of the atmosphere (TOA). Also, the climatology of the volume size distribution of aerosols shows a very great variability of particles in terms of size influenced by the thin and coarse pattern where most sizes are between 1 and 10 μm.

关键词： Aerosol AERONET MODIS Microphysical and Optical Properties Radiative Forcing

Profile of Extra-Pulmonary Tuberculosis in Internal Medicine

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Internal Medicine 2024年第1期14卷 64-73页

作者： Mouhamed Dieng Djiby Sow demba Diédhiou Michel Assane Ndour Boundia Djiba Mouhamed Almahy niang Matar Ndiaye Oumar Boun Khattab Diouf Fatou Kiné Gadji Anna Sar Maïmouna Ndour Mbaye Clinique Médicale II H&ocircpital Aristide Abass Ndao Université Cheikh Anta Diop Dakar Sénégal

Introduction: Tuberculosis is an infectious disease that mainly affects the lung. Extrapulmonary localizations are a reason for hospitalization in our health facilities. The objective of this study was to describe the epidemiological, clinical, paraclinical and evolutionary aspects of extra pulmonary tuberculosis (EPT) at the Abass ndao Hospital Center. Patients and Methods: This was a descriptive cross-sectional study conducted over a period of 11 years (January 1, 2010 to December 30, 2021). All patients with extrapulmonary tuberculosis hospitalized in the department of internal medicine during the recruitment period were included. Results: Fifty-two (52) patients were collected. The year 2019 recorded the most cases 23.08% (n = 20). The mean age of the patients was 40.56 ± 18.24 years. The age group 20 - 34 years 42.31% (n = 22) was the most represented. Females were in the majority 61.54% (n = 32) with a sex ratio (M/F) was 0.63. Housewives were in the majority 40.38% (n = 21). 60.87% of the cases (n = 14) came from a health facility. 38.46% of the cases had been infected. 21.74% (n = 9) were smokers. The reasons for consultation were dominated by fever (67.44%), AEG (62.79%) and cough (41.86%). Eighteen patients (40.91%) had fever. The mean time to consultation was 77.37 ± 90.3 days with extremes of 3 and 365 days. The median was 45 days. More than half of the patients 61.90% (n = 26) had anemia. Positive retroviral serology was noted in 21.43% of cases. All patients had a CRP greater than 6. More than half of the patients 51.92% (n = 27) had multifocal tuberculosis. The peritoneum 44.23% (n = 23) was the main organ affected. The average hospital stay was 9.8 ± 4.9 days with extremes of 1 and 19 days. All patients had received the protocol in force at the national level. Death was noted in 4 patients (9.52%). Conclusion: EPT is characterized in our context by a notorious diagnostic difficulty due to the multiplicity of clinical presentations, the complexity of

关键词： Extrapulmonary Tuberculosis Epidemiology Diagnosis Senegal

COVID-19/Tuberculosis Co-Infection at the Epidemic Treatment Center (ETC) of Saint-Louis (Senegal): About 9 Cases

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Advances in Infectious Diseases 2024年第1期14卷 56-66页

作者： Alassane Dièye Moustapha Diedhiou Papa Latyr Junior Diouf Mba Bambo Diakhaby demba Makalou Samba niang Diatou Dia-Gueye Amadou Diop Dia Ibrahima Louis Martin Dieng Seynabou Lô Ndéye Méry Dia-Badiane Health Sciences Training and Research Unit Gaston Berger University Saint-Louis Senegal Department of Medicine Saint-Louis Regional Hospital Saint-Louis Senegal Infectious and Tropical Diseases Clinic of Fann Dakar Senegal

Introduction: COVID-19 is a global public health emergency that can cause acute respiratory distress syndrome. In countries where tuberculosis (TB) is endemic, coinfection of COVID-19 and TB is often encountered, which increases the risk of developing severe forms of COVID-19. Objectives: The aim of this study was to determine the prevalence of COVID-19/TB coinfection at the Epidemic treatment center (ETC) in Saint-Louis (Senegal) and to describe the epidemiological, clinical, paraclinical, and outcome profile of co-infected patients. Patients and Methods: This is a retrospective, cross-sectional, descriptive cohort study based on the records of COVID-19/ TB co-infected patients who were hospitalized at the ETC in Saint-Louis (Senegal) over an 18-month period from March 2020 to September 2021. Results: Out of a total of 454 hospitalizations, we collected records of 9 patients co-infected with COVID-19/TB, resulting in a prevalence of 2%. The study included patients with a median age of 34 years (range: 10-86 years), with a male predominance (7 cases) and a sex ratio of 3.5. The majority of patients (88.9%) had severe forms of COVID-19. Dyspnea and cough were reported in all patients (100%). Pulmonary TB was the most frequent localization, with 9 cases. The diagnosis of COVID-19 was confirmed by nasopharyngeal PCR in all patients (100%). Bacilloscopy was positive in 3 out of 5 cases. One patient tested positive for GeneXpert? MTB/RIF without rifampicin resistance. All patients were prescribed the hydroxychloroquine-azithromycin combination and anti-tuberculosis treatment. Out of the nine patients, four recovered (44.4%) and five died (55.5%). Conclusion: COVID-19/TB coinfection had a low prevalence in our cohort, but was associated with a high mortality due to the frequent occurrence of severe forms of the disease.

关键词： COVID-19 Tuberculosis Saint-Louis Senegal

Cardiac Resynchronization Therapy in Heart Failure in Sub-Saharan Africa Environment: Experience of the Principal Hospital of Dakar (Senegal)

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Cardiovascular Diseases 2023年第7期13卷 349-358页

作者： Khadidiatou Dia Waly niang Mboup Djibril Marie Ba Serigne Cheikh Tidiane ndao Mame Madjiguene Ka Rabab Yassine demba Ware Balde Mouhamed Cherif Mboup Department of Cardiology Hospital Principal of Dakar Dakar Senegal Department of Cardiology Military Hospital of Ouakam Dakar Senegal

Background: Heart failure is a major public health challenge in sub-Saharan Africa. In patients with chronic Heart Failure and cardiac desynchrony, studies have suggested that cardiac resynchronization, can improve cardiac function and the quality of life of patients. However, in Sub-Saharan Africa, very few studies have been done on cardiac resynchronization which is in its infancy. The aim of this study is to report the local data from our hospital. Method: It was a transversal, descriptive and analytical study conducted from November 2019 to September 2022 at the Cardiology Department of the Principal Hospital of Dakar. Results: Twelve patients were implanted for Cardiac Resynchronization Therapy (CRT). The sex ratio was 8 males/4 females. The average age was 67 ± 11 years. Ten patients had non-ischemic heart disease and the two others had ischemic one. All of them had NYHA III or IV scores before CRT. The Quality of Life (QOL) was judged as poor by all of the patients. The average duration of QRS was 156 ± 9 ms. 27.9% ± 5% was the mean Left Ventricular ejection fraction (LVEF). Complications occur in 3/12 patients (25%). It was one CS vein dissection, one micro LV lead dislodgement and one phrenic nerve stimulation. Nine patients, who were considered as responders, had an improvement of QOL and NYHA, the LVEF increased and the end-diastolic dimension, and the duration of the QRS interval all decreased. Two patients do not respond and one (1) who had permanent atrial fibrillation, was a secondary responder after an atrioventricular junction ablation. Conclusion: Cardiac resynchronization is a therapy that improves the QOL of patients, the LVEF and reduces the duration of the QRS interval. However, this procedure is not without risk of complications. In sub-Saharan Africa, the major challenge is to improve the financial accessibility of this therapy for the population.

关键词： Cardiac Resynchronization Therapy CRT Heart Failure Biventricular Pacing Sub-Saharan Africa

MINOCA Resulting from Coronary Spasm Confirmed Angiographically without Ergonovine Stimulation: A Case Report

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Cardiovascular Diseases 2022年第11期12卷 473-480页

作者： Serigne Cheikh Tidiane ndao Mame Madjiguène Ka Waly niang Mboup Khadidiatou Dia Djibril Marie Ba demba Waré Balde Mouhamed Chérif Mboup Cardiology Department H&ocirc pital Principal Dakar Dakar Senegal Cardiology Department H&ocirc pital Militaire de Ouakam Dakar Senegal

Introduction: Myocardial infarction with nonobstructive coronary arteries disease (MINOCA) encompasses a heterogeneous group of disorders. Multimodality imaging is crucial to figure out the underlying mechanism. Coronary artery spasm is a common cause of MINOCA and might be difficult to identify. Case Presentation: A 43-year-old male with no cardiovascular risk factor presented with prolonged acute chest pain at 5 am that resolved spontaneously. On admission, he was asymptomatic and clinical findings were unremarkable. The electrocardiogram showed an anterolateral negative T wave. The troponin was positive. Coronary angiography (CA) revealed a moderate lesion of the proximal left anterior descending (LAD) coronary artery. He was treated with dual antiplatelet therapy, statin, and beta-blocker with a favourable hospital course. One week later, he presented chest pain recurrences with anterior ST-segment elevation. CA, without intra-radial nitrate, owing to a vasospasm suspicion, showed a sub-occlusion of the proximal LAD which resolved after intracoronary nitrates. Chest pain and ST-segment elevation then disappeared. He remained asymptomatic and was discharged on CCB (calcium channel blocker), long-acting nitrates dual antiplatelet and statin. Cardiac magnetic resonance (CMR) demonstrated an ejection fraction (EF) of 45% with anterior ischemia. Conclusion: Our case is about a common cause of MINOCA, namely coronary spasm, diagnosed by coronary angiogram without provocative test.

关键词： MINOCA Coronary Spasm Case Report

Inadvertent Lead Malposition in the Left Ventricle during Permanent Ventricular Pacing about One Case

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Cardiovascular Diseases 2023年第11期13卷 756-763页

作者： Khadidiatou Dia Waly niang Mboup Serigne Cheikh Tidiane ndao Mame Madjiguene Ka Rabab Yassine Djibril Marie Ba demba Ware Balde Mouhamed Cherif Mboup Department of Cardiology Hospital Principal of Dakar Dakar Senegal Department of Cardiology Military Hospital of Ouakam Dakar Senegal

Inadvertent Lead Malposition in Left Ventricle is a rare and underdiagnosed incident, which may occur during implantation of cardiac electronic devices and may remain asymptomatic. We reported the case of a 71-year-old man who was implanted with a ventricular single-chamber pacemaker for a slow atrial fibrillation with syncope and whose routine transthoracic echocardiography 23 months after implantation displayed a malposition of the pacemaker lead into the Left Ventricle through a patent foramen oval. The patient was asymptomatic. The electrocardiogram showed right bundle branch block QRS-paced morphology with a positive QRS pattern in V1, a median paced QRS axis on the frontal plane at -120°, a Precordial transition on V5. At the lateral Chest X-ray the lead curved backwards to the spine. Given the age of this old patient who already received oral anticoagulant for Atrial Fibrillation and the Lead malposition discovered 23 months after pacemaker’s implantation, we decided to maintain the lead in LV and continue anticoagulation.

关键词： Lead Malposition Left Ventricle Lead Right Bundle Branch Block Ventricu-lar Pacing Transthoracic Echocardiography

Cardiovascular and Cerebrovascular Prognosis at 5 Years of Patients Who Presented with an Ischemic Stroke at Principal Hospital of Dakar

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Cardiovascular Diseases 2022年第1期12卷 77-86页

作者： Waly niang Mboup Mame Madjiguène Ka Serigne Cheikh Tidiane ndao demba Ware Balde Djibril Mari Ba Khadidiatou Dia Pape Diadji Fall Mouhamed Cherif Mboup Department of Cardiology Principal Hospital/Dakar (HPD) Dakar Senegal Department of Cardiology Military Hospital of Ouakam/Dakar (HMO) Dakar Senegal

Aims: To determine the cardiovascular and cerebrovascular prognosis at 5 years of patients who underwent an ischemic stroke in Senegal. Methods: We performed a descriptive, retrospective and exhaustive study conducted at Principal Hospital of Dakar. We included all patients hospitalized at Principal Hospital of Dakar from 2013 to 2019 for an ischemic stroke confirmed by a cerebral CT-Scanner or by magnetic resonance imaging, and who survived the acute phase. Results: Overall, one hundred and seventy-one (171) patients were gathered. Ninety-six (96) male patients account for 56.14% and seventy-five (75) female patients account for 43.86%, with a sex ratio of 1.28. Patients’mean age was 66.33 ±13.99 years. Twenty-one (21) young patients (12.35%), aged less than 50 years, presented with an ischemic stroke. Myocardial infarction was found in a female patient (0.6%) 3 months after she experienced an ischemic stroke, nine (9) patients (5.29%) underwent a recurrence of the ischemic stroke

关键词： Cardiovascular Cerebrovascular Prognosis Ischemic Stroke Dakar

Atrial Fibrillation in Wolff Parkinson White Syndrome: About a Case in Senegal

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Cardiovascular Diseases 2023年第1期13卷 1-6页

作者： Waly niang Mboup Khadidiatou Dia Mame Madjiguène Ka Serigne Cheikh Tidiane ndao demba Ware Balde Djibril Mari Ba Mouhamed Cherif Mboup Adama Kane Department of Cardiology Principal Hospital of Dakar (HPD) Dakar Senegal Department of Cardiology Military Hospital of Ouakam (HMO) Dakar Senegal Department of Cardiology Aristide Le Dantec University Hospital Center Dakar Senegal

WOLFF PARKINSON and WHITE (WPW) syndrome is the most common form of pre-excitation. It is associated in some cases with atrial fibrillation with a high risk of sudden death. We report the case of a 64-year-old hypertensive woman with a history of ischemic stroke. She presented with hyperkinetic palpitations without hemodynamics instability on admission. The electrocardiogram recorded a complete tachyarrhythmia by pre-excitation atrial fibrillation, with a mean rate of 300 beats per minute. Electrophysiological investigation revealed an accessory pathway located at the ostium of the coronary sinus, which was successfully ablated by radiofrequency. A drug treatment based on flecaine 100 mg was introduced. The patient was asymptomatic after one month of outpatient follow-up.

关键词： Wolff Parkinson and White Atrial Fibrillation Senegal

Predictive Significance of IL-17A Serum Levels during Chemotherapy in Senegalese Women with Cervical Cancer

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Immunology 2019年第4期9卷 37-47页

作者： Folly Mawulolo Gaba Babacar Mbengue Maimouna Diop Doudou Diouf Sidy Ka Doudou Georges Massar niang Ramatoulaye Ndiaye Ibrahima Mounkeila Seydou Jean Pascal demba Diop Moustapha Mbow Rokhaya Ndiaye Diallo Maguette Sylla niang Mbacké Sembene Ahmadou Dem Alioune Dieye Service d’Immunologie Faculté de Médecine de Pharmacie et d’Odontologie Université Cheikh Anta Diop (UCAD) de Dakar Dakar Sénégal Service de Cancérologie Institut Juliot Curie Hopital Aristide Le Dantec Dakar Sénégal Service de Génétique Humaine Faculté de Médecine de Pharmacie et d’Odontologie UCAD Dakar Sénégal Département de Biologie Animale Faculté des Sciences et Techniques UCAD Dakar Sénégal

Background and Objectives: Cervical cancer is a leading cause of cancer death in female populations. It is a virally induced carcinoma resulting from sexually transmitted high risk Human Papillomavirus infections (e.g. HPV-16, HPV-18). Previous studies have shown associations between IL-17A levels in cancer micro-environments and metastasis of tumor cells. In Africa, chemotherapy (CT) is the standard first-line treatment for cervical cancer and the prognosis remains poor for metastatic and recurrent cases. The impact of CT as a treatment option is still unclear. We investigated the prognostic relevance of IL-17A profiles in Cervical cancer patients (CP) patients treated with cisplatin in combination with 5-fluouracil (5FU) for three cycles. Methods: The study included 57 CP and 59 women with no history of malignancy as healthy controls (HC). IL-17A plasma levels were evaluated by ELISA. For each CP, three blood samples were collected at three-week intervals before initiation of the chemotherapy protocol. Results: Before chemotherapy CP showed higher serum levels of IL-17A compared to HCs (p = 0.035). No relation was detected between age and IL-17A levels. We observed a significant increase in serum IL-17A during treatment of the CP group (p Conclusion: Our results suggest that high serum levels of IL-17A are associated with poor responses to classical chemotherapy. However, considering these results to design CC biomarkers, we need further investigations particularly about the relevant prognostic indicator following chemotherapy.

关键词： Cervical Cancer Chemotherapy Interleukin 17A