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Comparative Geochemical Study of the Tertiary and Quaternary Lavas of Western Senegal and the Cape Verde Islands: Geodynamic Implications

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International Journal of Geosciences 2015年第11期6卷 1193-1213页

作者： Diomaye Yatte Dinna Pathé Diallo ibrahima sagna Département de Géologie Université Cheikh Anta Diop Dakar Sénégal Institut Fondamental d’Afrique Noire (IFAN) Université Cheikh Anta Diop Dakar Sénégal

The western area of Senegal was the site of a basic volcanism in the Tertiary and Quaternary. That volcanism had caused the formation of alkaline olivine basalts, basanites and nephelinites from microlitic and porphyritic texture to dolerite texture. The geochemistry of major elements shows that the Quaternary basalts are more aluminous and more siliceous, but they contain less magnesium, less iron and less calcium than the Tertiary basalts. Two types of basalt occur here, based on the characteristics of the major elements in the Tertiary lavas: the highly undersaturated basalts of the Cape Verde Peninsula and the slightly undersaturated basalts of the Thiès Plateau. The characteristics of the trace elements reveal shallow interactions due to the contamination and/or assimilation, and to the fractional crystallization, but not due to the heterogeneity of the source. The strong enrichment in light rare earth elements (LREE) and the slight enrichment in heavy rare earth elements (HREE), the anomalies which are negative in K and Pb and positive in Nb, Ta and Eu of the Tertiary and Quaternary basalts of Western Senegal and similar anomalies of the same elements (Pb not analyzed) described in the Cape Verde islands, allow us to establish links between the petrogenetic mechanisms that had caused the formation of the basalts of this Islands and Western Senegal. Moreover, the volcanic activity in Western Senegal (of continental lntraplate type) and that of the Cape Verde Islands (oceanic intraplate type) are probably related to the hot spot located on the vertical of the Cape Verde.

关键词： Western Senegal Basalts Tertiary Quaternary Cape Verde

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Factors associated with mortality in congenital malformations of the gastrointestinal tract in a tertiary center in Senegal

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World Journal of Pediatric Surgery 2023年第1期6卷 24-29页

作者： Tshibwid A Zeng Papa Alassane Mbaye Doudou Gueye Ndèye Fatou Seck ibrahima Bocar Wellé Rosalie Niang Youssouph Diedhiou Mbaye Fall Ndèye Aby Ndoye Aloïse sagna Oumar Ndour Gabriel Ngom Department of Pediatric Surgery Albert Royer National Children’s Hospital CenterUniversitéCheikh Anta Diop Facultéde Medecine Pharmacie d'Odonto-StomatologieDakarSenegal Department of Pediatric Surgery Aristide Le Dantec University Teaching HospitalUniversitéCheikh Anta Diop Facultéde Medecine Pharmacie d'Odonto-StomatologieDakarSenegal

Objective Patients with congenital malformations(CMs)of the gastrointestinal tract(GIT)have a very high ***,the literature on the factors associated with mortality in these patients is scarce in sub-Saharan *** aim of this study is to identify independent risk factors for mortality in patients with CMs of the GIT at our pediatric surgical *** We conducted a retrospective analysis of cases with CMs of the GIT managed at a tertiary center from 2018 to *** were subdivided into two groups based on the outcomes,and variables with a significant difference were analyzed by logistic *** Our review included 226 patients,63 of whom died(27.88%).Patient age ranged from 0 to 15 *** into account statistical significance,mortality was more frequent in neonates than in older patients(57.30%vs 6.15%),in patients coming out of the Dakar area than in those from the Dakar area(43.75%vs 19.18%),in patients with abnormal prenatal ultrasound than in those with normal ultrasound(100%vs 26.67%),in premature children than in those born at term(78.57%vs 21.87%),in patients with an additional malformation than in those with an isolated malformation(69.23%vs 25.35%),and in those with intestinal,esophageal,duodenal and colonic atresia than in those with other diagnoses(100%,89%,56.25%and 50%,respectively).Referred patients died more than those who changed hospitals or came from home(55.29%vs 25%and 9.09%,respectively).On multivariable logistic regression,two independent factors of mortality were identified:presence of associated malformation[odds ratio(OR)=13.299;95%Confidence interval(CI)1.370 to 129.137]and diagnosis of esophageal atresia(OR=46.529;95%CI 5.828 to 371.425).Conclusion The presence of an associated malformation or diagnosis of esophageal atresia increases mortality in patients with CMs of the GIT in our environment.

关键词： mortality diagnosis congenital

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Treating Hypertension in the Workplace: Can the Numbers Be Controlled in 3 Months?

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Occupational Diseases and Environmental Medicine 2024年第4期12卷 318-324页

作者： Asséga Sylvain sagna ibrahima Diarra Serigne Mor Beye Mossane Dominique Ndour Modou Mbacké Gueye Mame Thioro Aïssatou Fall Boto SA Managem Group Kdougou Sngal Department of Health sciences Gaston BERGER University Saint-Louis Senegal International Committee of the Red Cross Dakar Senegal West Africa Farm (WAF) Yamane Louga Sngal

Hypertension is a public health problem that affects both developed and developing countries. Senegal is making significant progress in the fight against this and other chronic, non-communicable diseases. Achieving blood pressure control within three months of treatment is an important pillar of Senegal’s strategy. The objective of this study was to evaluate the achievement of blood pressure control within three months of treatment at SCL. Our results show the need to strengthen blood pressure management skills of healthcare staff.

关键词： High Blood Pressure Non-Communicable Disease ABPM Treatment Target Senegal

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Persistent Congenital Paraurethral Cyst, a Rare Cause of Dysuria in a Girl

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Open Journal of Urology 2023年第3期13卷 83-87页

作者： Doudou Gueye Ndeye Fatou Seck Florent Tshibwid A. Zeng Papa Alassane Mbaye ibrahima Bocar Wellé Lissoune Cissé Ndeye Aby Ndoye Aloïse sagna Department of Pediatric Surgery Albert Royer National Children’s Hospital Centre Université Cheikh Anta Diop Dakar Senegal

Congenital paraurethral cyst rarely occurs. Its natural history is spontaneous regression, leading to conservative management adoption. We report an exceptional case of a 13-year-old female with a persistent congenital paraurethral cyst, leading to dysuria. We surgically excised the cyst, and the outcomes were unremarkable 20 months postoperatively.

关键词： Congenital Paraurethral Cyst Persistent Dysuria Girl Surgical Excision

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Delayed Management of High-Grade Renal Trauma in a Child with Bilateral Lower Polar Artery: A Case Report

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Open Journal of Urology 2022年第11期12卷 556-562页

作者： Doudou Gueye Florent Tshibwid A. Zeng ibrahima Bocar Wellé Papa Alassane Mbaye Lissoune Cissé Christ Tsague Momo Ndeye Aby Ndoye Aloï se sagna Gabriel Ngom Department of Pediatric Surgery Albert Royer National Children’s Hospital Centre Université Cheikh Anta Diop Dakar Senegal

High-grade renal trauma rarely occurs due to low-velocity mechanisms. With its clinical presentation, delayed diagnosis rarely happens. We report the case of a 12-year-old girl diagnosed seven days post-trauma with grade IV renal trauma complicated with infected urinoma and bilateral lower polar vessels. She was non-operatively managed with ultrasound-guided percutaneous drainage of the urinoma, which resolved, and had unremarkable six months follow-up. We discuss the role of preexistent hydronephrosis in low-velocity impact, pitfalls of diagnosis in resource-constrained settings, and management of high-grade trauma.

关键词： Renal Trauma Lower Polar Artery Urinoma Delayed Diagnosis Case Report

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Inoculation with arbuscular mycorrhizal fungi improves seedlings growth of two sahelian date palm cultivars (<i>Phoenix dactylifera</i>L., cv. Nakhla hamra and cv. Tijib) under salinity stresses

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Advances in Bioscience and Biotechnology 2014年第1期5卷 64-72页

作者： ibrahima Léopold Djitiningo Diatta Aboubacry Kane Codjo Emile Agbangba Maurice sagna Diegane Diouf Frédérique Aberlenc-Bertossi Yves Duval Alain Borgel Djibril Sane IRD Institut de Recherche pour le Développement Montpellier France Laboratoire Campus de Biotechnologies Végétales Département de Biologie Végétale Faculté des Sciences et Techniques Un-iversité Cheikh Anta Diop Dakar Sénégal Laboratoire Campus de Biotechnologies Végétales Département de Biologie Végétale Faculté des Sciences et Techniques Un-iversité Cheikh Anta Diop Dakar Sénégal Laboratoire Commun de Microbiologie IRD/ISRA/UCAD Route des Hydrocarbures Dakar Sénégal Laboratoire d’Ecologie et d’Ecohydrologie Département de Bi-ologie Végétale Faculté des Sciences et Techniques Université Cheikh Anta Diop Dakar Sénégal

This study presents an analysis of the impact of mycorrhizal inoculation on growth under salt stress of date palms cultivars Nakhla hamra (NHH) and Tijib known in the Sahel for their earliness in flowering and fruiting. The seedlings were grown in a greenhouse on a sandy substrate watered to field capacity every two days and were subjected to increasing levels of NaCl (0, 1, 2, 4, 6, 8 and 16 g·L-1) and then inoculated with 5 strains of Glomus (G. aggregatum, G. intraradices, G. verriculosum, G. mosseae, G. fasciculatum). The experimental design was a randomized complete block with three factors (cultivars: Tijib and Nakhla Hamra x seven levels of NaCl concentrations x six levels of inoculum). The results showed that in the absence of NaCl, G. verriculosum significantly enhanced shoot growth: 33.5 cm against 30.3 cm in the control and roots growth: 81.5 cm against 78 cm in NHH, while in Tijib, the growth is stimulated by Glomus fasciculatum: 33.8 cm against 32.7 cm for stems and 90 cm against 86 cm for the roots of inoculated plants and controls. In contrast, in the presence of NaCl 8 g·L-1, NHH has a better growth in the presence of G. intraradices: 37.3 cm against 30.6 cm for stems and 77 cm against 73 for roots, while Tijib grows better in the presence of G. fasciculatum with respectively 31.9 cm against 31.7 cm and 51.27 cm against 51.6 cm for stems and roots of inoculated plants and controls. Biochemical analysis revealed that changes in levels of proline depend on the cultivar, the mycorrhizal strain used and concentrations of NaCl applied. These results open the prospect of using mycorrhizal fungi to improve the productivity of palm trees in the Sahel.

关键词： Sahel Date Palm Salinity Inoculation Mycorrhizae Glomus Proline

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Domestic Accidents in Under-Fives: Epidemiology, Diagnosis, Management, and Outcomes

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Open Journal of Pediatrics 2022年第5期12卷 726-736页

作者： Florent Tshibwid A. Zeng Papa Alassane Mbaye Doudou Gueye Papa Mamadou Ndoye ibrahima Bocar Wellé Ndeye Fatou Seck Mbaye Fall Ndeye Aby Ndoye Aloïse sagna Oumar Ndour Gabriel Ngom Department of Pediatric Surgery Albert Royer National Children’s Hospital Centre Université Cheikh Anta Diop Dakar Senegal Department of Pediatric Surgery Aristide Le Dantec University Teaching Hospital Université Cheikh Anta Diop Dakar Senegal

Introduction: Domestic accidents are a public health problem, and under-fives are particularly affected. We report these accidents’ epidemiology, diagnosis, management, and outcomes through this study. Patients and Methods: We conducted a prospective descriptive study for four months in the Albert Royer National Children’s Hospital Center pediatric surgery department in Dakar, Senegal. Of the 149 cases of domestic accidents, 109 were included in this study. Results: Infants (59.6%) were the most affected, with a slight male predominance (50.5%). Accidents occurred on Tuesday in 22.9% of cases and the afternoon in 38.5% of cases. Playing (59.6%) was the main activity, and falling (44%) was the most found mechanism. 78.9% of accidents occurred in the house, with the bedroom (27.5%) being the most represented place. In most cases (67.9%), the consultation was done within the first 24 hours. The upper limbs (48.6%) were the most affected, and fractures (31.2%) were the most frequent injuries. The outcomes were unremarkable in 94.5% of cases, as complications occurred in five patients with three who had an infection, one a persistent limping, and the last, a dental avulsion. No mortality was recorded. Conclusion: Domestic accidents among under-fives are frequent in our environment. Compared to those in older children, they occur similarly in both sexes, more often in the bedroom, and have a better prognosis.

关键词： Domestic Accidents Under-Fives Infants Preschool Children Senegal

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Abdominal Cerebrospinal Fluid Pseudocyst—A Rare Complication of Ventriculoperitoneal Shunt

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Open Journal of Modern Neurosurgery 2023年第3期13卷 105-110页

作者： Ndeye Fatou Seck ibrahima Bocar Wellé Cheikh Ahmadou Dit Ndongo Dieng Florent Tshibwid A. Zeng Fatou Sy Doudou Gueye Papa Alassane Mbaye Ndeye Aby Ndoye Aloïse sagna Gabriel Ngom Department of Pediatric Surgery Albert Royer National Children’s Hospital Center Université Cheikh Anta Diop Dakar Senegal

An abdominal cerebrospinal fluid pseudocyst is a rare complication of ventriculoperitoneal shunt. Several theories have been suggested to explain its occurrence. The main symptoms are painful abdominal distension and vomiting, abdominal distension on examination, as abdominal ultrasound and computed tomography confirm its diagnosis. The treatment involves drainage associated with drain relocation and resection of the pseudocyst’s wall. We report two patients diagnosed with this condition who underwent surgical treatment. The first patient had an unremarkable 12-month follow-up, while the second died on the seventh postoperative day due to intravascular disseminated coagulation. In these patients, the cause has not been identified;however, an infection cannot be ruled out.

关键词： Abdominal Pseudocyst Cerebrospinal Fluid Children Complication Ventriculoperitoneal Shunt

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Management and Outcome of Ureteropelvic Junction Obstruction in Senegalese Children

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Open Journal of Urology 2022年第11期12卷 549-555页

作者： ibrahima Bocar Wellé Ndeye Aby Ndoye Papa Alassane Mbaye Doudou Gueye Ndeye Fatou Seck Faty Balla Lo Lissoune Cissé Anderson Safari Kibanja Florent Tshibwid A. Zeng Youssouph Diedhiou Aloï se sagna Oumar Ndour Gabriel Ngom Department of Pediatric Surgery Albert Royer National Children’s Hospital Centre Université Cheikh Anta Diop Dakar Senegal Department of Pediatric Surgery Aristide Le Dantec University Teaching Hospital Université Cheikh Anta Diop Dakar Senegal

Introduction: The ureteropelvic junction obstruction is a rare congenital malformation of the upper urinary tract. We report its management and outcome at Senegal’s main pediatric surgical department. Patients and Methods: We conducted a descriptive review of all patients managed in our pediatric surgical department at Albert Royer National Children’s Hospital Centre from January 1st, 2013 to December 31st, 2017. Results: Thirty patients were included in our study. The mean age was three years. Males were more affected (sex ratio of 2.75). The prenatal diagnosis was made in 23% of cases using prenatal ultrasonography. An abdominal mass was the circumstance of discovery in 36% of cases, and lumbar contact and renal sloshing were found in 66% of cases. There was no renal function impairment in 93% of cases. Urinary tract infection occurred in 50% of cases. Ultrasonography (100%) and urinary computed tomography (56%) were used to diagnose. A temporary nephrostomy was performed in 23% of cases, and as definitive treatment, an open Anderson-Hynes procedure was performed in 96% as a nephrectomy was made in a patient. Early postoperative complications were encountered in 56% of cases: urinary tract infection (36%), surgical site infection and anastomotic stenosis (6% both), and urinoma and textiloma (both in 3%). A patient died from sepsis. After a mean follow-up of 12 months, no additional complication was reported. Conclusion: Ureteropelvic junction obstruction was frequently diagnosed late, and its management carried unneglectable morbidity in our environment. A laparoscopic approach would be a solution to improve its outcome.

关键词： Ureteropelvic Junction Obstruction Management Outcome Children Senegal

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Influence of Topography on the Distribution and Structure of Woody Plants in the Senegalese Sahel (Sandy Ferlo)

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American Journal of Plant Sciences 2024年第1期15卷 14-28页

作者： Moustapha Bassimbe sagna Aïssatou Ndong Thiam Khoudia Niang Oumar Sarr Aly Diallo Sekouna Diatta Daouda Ngom Aliou Guissé Department of Plant Biology Faculty of Science and Technology Cheikh Anta Diop University Dakar Senegal IRL 3189 “Environment Health Society” Tessekere Human Environment Observatory (Senegal) Dakar Senegal Department of Agronomy and Plant Production El Hadji Ibrahima Niasse University Kaolack Senegal Department of Agroforestry Assane Seck University Ziguinchor Senegal

This study describes the floristic composition and structure of a woody stand in the Senegalese Sahel, paying particular attention to the edaphic factors of its floristic composition. A stratified inventory considering the different relief units was adopted. Woody vegetation was surveyed using a dendrometric approach. The results obtained show that the flora is dominated by a few species adapted to drought, such as Balanites aegyptiaca (L.) Del., Calotropis procera Ait. and Boscia senegalensis (Pers.). The distribution of this flora and the structure of the ligneous plants are linked to the topography. In the lowlands, the flora is more diversified and the ligneous plants reach their optimum level of development compared with the higher relief areas. In the lowlands, there are a few woody species which, in the past, were indicative of better climatic conditions. These are Anogeissus leiocarpus (DC.), Commiphora africana (A. Rich.), Feretia apodanthera Del., Loeseneriella africana (A. Smith), Mitragyna inermis (Willd.) and Sclerocarya birrea (A. Rich). It is important that their reintroduction into reforestation projects takes account of their edaphic preference.

关键词： Woody Plants Distribution Topography Ferlo Senegal

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