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Cytotoxic Lesions of the Corpus Callosum (CLOCCs) Associated with SARS-CoV-2 Infection in West Africa (Côte d’Ivoire)

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Advances in Infectious Diseases 2023年第2期13卷 132-136页

作者： Ismaila Diakité kotchi elisée bony Hiénaya Armel Karidioula Any Gnazegbo Muriel Tchwa Amon Kouame Léonard Kouassi Idrissa Garba Anhum Nicaise Konan Ange eric Kouame Assouan Department of Neurology Training and Research Unit for Medical Sciences Felix Houphouet Boigny University Abidjan C&#244te d’Ivoire Department of Neurology Training and Research Unit for Medical Sciences Alassane Ouattara University Bouake Bouake C&#244te d’Ivoire Department of Radiology Training and Research Unit for Medical Sciences Felix Houphouet Boigny University Abidjan C&#244te d’Ivoire

Background: Cytotoxic lesions of the corpus callosum (CLOCCs) represent a collection of disparate conditions that can cause a signal change in the corpus callosum, usually involving the splenium. CLOCCs is present in a variety of disorders, such as cerebral infarction, bleeding, multiple sclerosis, acute disseminated encephalomyelitis, glioblastoma, lymphoma, metabolic diseases, and infections. Since 2020, World Health Organization (W.H.O) defined Coronavirus disease 2019 (COVID-19), caused by SARS-CoV-2, as a pandemic. Numerous CLOCCs cases have been reported in adults in particular in Japan, in China, and recently in children in Turkey associated with SARS-CoV-2. We report the first case of CLOCCs diagnosed in West Africa (Côte d’Ivoire) in an adult associated with SARS-CoV-2. Case Report: A 60 year-old-woman with a medical history of high blood pressure and diabetes, presented to the emergency department with confusion without fever. Neurological examination was normal apart from temporospatial disorientation. Brain magnetic resonance imaging (MRI) showed abnormal signals in the splenium of the corpus callosum (SCC). Forty-eight hours (48 h) after admission, the patient experienced a fever (temperature: 385˚C), several episodes of hypoglycemia (capillary blood glycemia levels below 0.5 g/l) and a dry cough. Lung CT imaging showed typical features with ground-glass opacities. Oropharyngeal swab was positive for SARS-CoV-2 on reverse-transcriptase–polymerase-chain-reaction (RT-PCR) assay. The clinical course was favorable. One month after disease onset, a follow-up Brain MRI showed considerable regression of SCC abnormal signal. The multiple episodes of hypoglycemia and SARS-COV 2 infection were incriminated as the causal factors. Conclusion: The improvement of the technical platform in our context of work gives us the possibility to identify the etiological factors of this rare clinico-radiological entity.

关键词： Africa South of the Sahara COVID-19 Corpus Callosum

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Characterization of Aquifers in Crystalline and Crystallophyll Basement Zones Using the electrical Resistivity Method (Trails and electrical Soundings) in the Gagnoa Region, (Central-Western Côte d’Ivoire)

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International Journal of Geosciences 2024年第6期15卷 511-523页

作者： Oscar Zahibo Onétié Assoué Kouakou Sylvestre Kouadio kotchi Rodrigue Orou Maxime Assa Abe Department of Geosciences Peleforo Gon Coulibaly University Korhogo Cte dIvoire Department of Agriculture and New Technologies University of San Pedro San Pedro Cte dIvoire

Introduction: Located in the central-western part of Côte d’Ivoire, the subsoil of the Gagnoa region is made up of sedimentary volcano formations and granitoids with developed fracturing. This complex Precambrian basement contains most of the region’s water resources. This is at the origin of the high failure rate during the various hydrogeological prospecting campaigns. Methodology: The database consists of resistivities from 42 holes and 51 trails drilled as part of the implementation of high-throughput drilling in the study area. The objective of this study is to deepen the knowledge of the fissured basement by interpreting profile curves and electrical soundings. It will be a question of classifying the different types of anomalies obtained on the profiles and their shapes. The orientation of the lineaments observed on the profiles was determined. Results: The interpretation of the geophysical data revealed various anomalies, the main ones being of the CC (Conductor Compartment) and CeDP (Contact between two bearings) types. These types of anomalies are mainly expressed in various forms: the “V”, “W” and “U” shapes. From these anomalies and the appearance of the electrical profiles, lineaments and their orientations were identified with N90-100, N130-140, N170-180 as major orientations. Conclusion: These results could contribute to a better understanding of the fractured environment of the Gagnoa region.

关键词： Basement electrical Profiles Sounding Curves Resistivities

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