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Bilharzia Appendicitis: Incidence in a Commune in Mali, about 3CAS

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Surgical Science 2024年第5期15卷 321-329页

作者： Souleymane Bingue Dembélé Yely Dianessy Moussa Samake Abdou Guiré siaka konat. Ousmane Sy Boubacar Yoro Sidibé Amadou Maïga Thiorno Nadio Boubacar Karembe Amaguiré Saye Sirama Diarra Dorcas Sodjiné Yede Issiaka Diarra Ibrahima Maiga Mahamane Dicko Moussa konat. Aliou Bina Diarra Bakary Tientigui Dembélé General Surgery Department of the District Hospital of Commune IV of Bamako Bamako Mali Kolondié ba Reference Health Centre Sikasso Mali Epidemiology and Clinical Research Bamako Mali General Surgery Department of Gabriel Touré University Hospital Bamako Mali Ophthalmology Department of the District Hospital of Commune IV of Bamako Bamako Mali Gynecology and Obstetrics Department of the District Hospital of Commune IV of Bamako Bamako Mali Commune I of the District of Bamako Reference Health Centre Bamako Mali Imaging Department of the District Hospital of Commune IV of Bamako Bamako Mali Commune VI of the District of Bamako Reference Health Centre Bamako Mali Anotomy-Pathology Department of the G Point University Hospital Bamako Mali

Appendicitis bilharzia is a very rare condition and we report 3 cases of this pathology that sense clinical and biological similarities with bacterial appendicitis. The etiological diagnosis was exclusively histopathological, this allowed to highlight eggs of Schistosome in the appendicular wall in the three patients. The surgical treatment was supplemented by a specific medical treatment based on praziquantel. The surgical suites were simple for 2 patients, complicated by superficial parietal suppuration in a patient.

关键词： Bilharzial Appendicitis Endemic Histopathology Specific Antiparasitic Treatment

Experimental Investigation of the Stability of the Performance Characteristics of a Photovoltaic Module in the Face of Environmental and Meteorological Factors

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Open Journal of Applied Sciences 2024年第2期14卷 589-608页

作者： Adingra Paul Arsène Kouassi siaka Touré Diakaridja Traoré Laboratoire des Sciences de la Matière de l’Environnement et de l’Energie Solaire (LASMES) Unité de Formation et de Recherche des Sciences des Structures de la Matière et Technologie (UFR-SSMT) Université Félix Houphou&#235t Boigny Abidjan C&#244te d’Ivoire

The explosive technological improvement of photovoltaic systems as well as the necessity of populations to come to less expensive energy sources, that have led to an implosion at the level of solar panel manufacturers. This causes a large flow of these equipments to developing countries where the need is high, without any quality control. That conducted an experimental investigation on the performance characteristics of a 250 wp monocrystalline silicon photovoltaic module in other to check the verification and quality control. Most of these PV panels which often have missing informations are manufactured and tested in places that are inadequate for our environmental and meteorological conditions. Also, their influences on the stability of internal parameters were evaluated in order to optimize their performance. The results obtained at maximum illumination (1000 w/m2) confirmed those produced by the manufacturer. The analysis of these characteristics showed that the illumination and the temperature (meteorological factors) influenced at most the stability of the internal characteristics of the module in the sense that the maximum power increased very rapidly beyond 750 w/m2 but a degradation of performance was accentuated for a temperature of the solar cells exceeding 50°C. The degradation coefficients were evaluated at -0.0864 V/°C for the voltage and at -1.6248 w/°C for the power. The 10° inclination angle of the solar panel proved to be ideal for optimizing overall efficiency in practical situations.

关键词： Renewables Energies Instruments Internal Parameters of Photovoltaic Panel Monocrystalline Photovoltaic Panel Solar Energy Production Energy Intermittence

Ear Cholesteatoma Surgery in South Sahara: Our Experience in Bamako

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International Journal of Otolaryngology and Head & Neck Surgery 2024年第4期13卷 293-303页

作者： Kassim Diarra Oumou Coulibaly Yaya Dembele Nfaly konat. Sidibe Youssouf Saydi Ag Mohamed Harouna Sanogo Abraham Diarra Ibrahim Fofana Moussa Bourama Keita Youssouf Traore Fatogoma Issa Koné Boubacary Guindo siaka Soumaoro Doumbia Kadidiatou Singare Mohamed Amadou Keita ORLCCF Department Gabriel Toure University Hospital Bamako Mali ORLCCF Unit Kati Army Polyclinics Kati Mali ENT-CCF Department CHU Luxembourg Bamako Mali ORLCCF Service of the Reference Center of Commune VI Sogoniko Bamako Mali

In Mali, cholesteatoma surgery remains a challenge due to the limited number of otological practitioners, and the low socio-economic level of patients reflecting the difficulties in performing CT or MRI for post-operative follow-up. We therefore initiated this work with the objective of analyzing, through a broad bibliographic review, the clinical, paraclinical, topographical, therapeutic and progressive aspects of a series of ear cholesteatoma. Materials and Method: This was a retrospective and prospective, descriptive study that took place in the ENT and head and neck surgery department of the Gabriel Touré University Hospital over 36 months from November 2020 to October 2023. These were patients admitted to the department for chronic cholestematous otitis media. Result: In total, we collected 34 files of patients admitted for cholesteatoma. This represented 9% of cases compared to all otological surgeries carried out during the same period, i.e. 362 cases. The average age of our patients was 35.31 years, with extremes ranging from 7 years to 80 years, there were 24 men and 10 women, i.e. a M/F ratio of 2.4. The average time to diagnosis was 7 years. The main functional signs were dominated by chronic fetid purulent otorrhea associated with hypoacusis in 94.6% of cases. One case of meningeal complication and three cases of cerebral empyema were reported. Clinically, a postero-superior and marginal tympanic perforation was observed in 53%, a retraction pocket in 5.9%, the sentinel polyp in 9%, and a non-marginal tympanic perforation in 32%. Pure-tone audiometry performed preoperatively for all patients showed conductive hearing loss in 83%. In 82% of cases we created a recess with the creation of a mini box. An ossiculoplasty was performed immediately with fragments of cartilage. The postoperative course found the disappearance of otorrhea (88.23%), the persistence of otorrhea in one case, two cases of facial paralysis, and one case of tinnitus. We did not identify

关键词： Cholesteatoma CT TTO TTF

Knowledge Practical Attitude of Health Professionals on Breast Cancer at the Hospital of the District of the Commune IV of Bamako

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Surgical Science 2024年第5期15卷 342-356页

作者： Moussa Samaké Souleymane B. Dembelé Sirama Diarra Yely Dianessy Abdou Guiré Dorcas Laurel Sodjiné Yede Amaguiré Saye Brahima Dembele Birama Traoré Thierno Nadio Ibrahima Maiga Mahamane Dicko Modibo Diarra siaka konat. Amadou Maiga Bakary Tientigui Dembele Adégné Togo General Surgery Department of Bamako District IV Hospital Bamako Mali Obstetric Gynecology Department of the Bamako District IV Hospital Bamako Mali Department of Ophthalmology of the Hospital of the District of the Commune IV of Bamako Bamako Mali Imaging Service of the Bamako District IV Hospital Bamako Mali Anesthesia and Resuscitation Service of the Hospital of the District of the Commune IV of Bamako Bamako Mali Internal Medicine Department of the District Hospital of Commune IV of Bamako Bamako Mali General Surgery Department Kolondjeba Referral Health Centre Sikasso Mali General Surgery Department of the Gabriel Touré University Hospital Bamako Mali

Introduction: The level of knowledge and attitude of health professionals about breast cancer are important determinants. General objective: To study the knowledge, attitude and practice of health professionals of the hospital of the district of the commune IV on breast cancer. Methodology: This was a cross-sectional, prospective, descriptive, qualitative and quantitative study. The study period was from 01 October 2022 to December 2022. Results: In one week of survey, 110 health workers (intern, obstetrician nurse, general practitioners and specialists) received the survey sheet, 80 health workers informed it, a participation rate of 73%. The male sex was most represented at 63.75% with a sex ratio of 1.76. The average age was 39.59 years with extremes of 22 and 61 years. The clinical signs evoked by the participants were: breast nodule (81.25%), followed by breast discharge (48.75%). In relation to risk factors: interns and obstetrician nurses had no good knowledge, 51.72% of general practitioners had good knowledge, 43.48% of specialist doctors had good knowledge, and 5.88% of the wise had good knowledge. Conclusion: Breast cancer is a common pathology around the world, health professionals are at the forefront of the fight against breast cancer, and this fight cannot be effective without trained personnel.

关键词： Knowledge Attitude Practice Health Personnel Breast Cancer

Liposarcoma Retro-Peritoneal in the General Surgery Department of the Hospital of the District of the Commune IV

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Surgical Science 2024年第7期15卷 430-437页

作者： Moussa Samaké Souleymane Bingué Dembelé Yely Dianessy Abdou Guiré Dorcas Laurel Sodjiné Yede Youssouf Boiré Mahamane Dicko Mantia Sara Nouhoum Sanogo Amaguiré Saye Sirama Diarra Brahima Dembele Thierno Nadio Ibrahima Maiga Modibo Diarra siaka konat. Birama Cheick Traoré Boubacar Diassana Bathio Traoré Amadou Maiga Boubacar Yoro Sidibé Adégné Togo General Surgery Department of Bamako District IV Hospital Bamako Mali Anesthesia and Resuscitation Service of the Hospital of the District of the Commune IV of Bamako Bamako Mali Anatomopathology Department of the CHU of Point G Bamako Mali Obstetric Gynecology Department of the Bamako District IV Hospital Bamako Mali Department of Ophthalmology of the Hospital of the District of the Commune IV of Bamako Bamako Mali Imaging Service of the Bamako District IV Hospital Bamako Mali Internal Medicine Department of the District Hospital of Commune IV of Bamako Bamako Mali General Surgery Department Kolondjeba Referral Health Centre Sikasso Mali Gynecology and Obstetrics Department of the San Reference Health Center Segou Mali General Surgery Department of Sikasso Hospital Sikasso Mali General Surgery Department of the Gabriel Tour University Hospital Bamako Mali

Retroperitoneal soft tissue sarcomas in the retroperitoneal/intra-abdominal regions represent 10% - 15% of all cases of soft tissue sarcoma. Liposarcomas, which are the most common histological type, account for 20% - 45% of retroperitoneal/intra-abdominal sarcoma cases, and 20% of liposarcomas cases are primary retroperitoneal liposarcomas. Surgical resection in case of malignancy remains the treatment of choice for liposarcomas, according to the guidelines of most major international companies. Our goal was to improve the management of retroperitoneal liposarcoma. This was a 65-year-old patient, with no medical or surgical history, who was referred to us for abdominal swelling, in whom clinical and paraclinical examination found retroperitoneal liposarcoma stage IV, and the surgical treatment consisted in making a tumor reduction. Conclusion: Retro-peritoneal liposarcoma is an undervalued malignant tumor, and the diagnosis is often late.

关键词： Retroperitoneal Liposarcoma Diagnostic Delay

Ultrasound of the Rotator Cuff in Non-Fractured Shoulder Trauma: 30 Cases at the Yalgado Ouedraogo University Hospital of Ouagadougou (Burkina Faso)

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Open Journal of Medical Imaging 2024年第2期14卷 64-71页

作者： Milckisédek Judicaël Marouruana Some Aïda Ida Tankoano Pakisba Ali Ouedraogo Ladouon Sylvie Simboro Bassirou Kindo siaka Ben Aziz Dao Rabiou Cisse Department of Medical Imaging The Ouahigouya Regional University Hospital University of Ouahigouya Ouahigouya Burkina Faso Department of Medical Imaging Souro Sanou University Hospital Nazi Boni University Bobo Dioulasso Burkina Faso Department of Medical Imaging Workers Health Office Ouagadougou Burkina Faso Department of Medical Imaging Yalgado Oudraogo University Hospital Joseph Ki Zerbo University Ouagadougou Burkina Faso

Introduction: Ultrasound is the imaging technique of choice for the study of rotator cuff lesions. However, in the case of shoulder trauma, it is rarely requested in our context. This study aimed to show ultrasound lesions of the rotator cuff in cases of non-fracture shoulder trauma at the CHUYO in Ouagadougou. Methodology: This was a prospective descriptive cross-sectional study running from August 1 to November 30, 2017, in the medical imaging department of CHUYO. The study population consisted of patients received in the department for ultrasound in the context of non-fracture shoulder trauma. Results: We collected 20 cases (66.67%) of rotator cuff lesions out of 30 non-fracture shoulder injuries. The mean age of the patients was 27.6 years. Road traffic accidents accounted for 60% of injuries, sports accidents for 30%, and domestic accidents for 10%. Ultrasound lesions were mainly tendon ruptures (36.67%) and tendinitis (23.33%). Ruptures were non-transfixing in 90.90% of cases. The supraspinatus was the most affected (81.81%). Conclusion: Ultrasound can help diagnose rotator cuff injuries, particularly in non-fractured shoulder trauma.

关键词： Traumatic Shoulder Rotator Cuff Ultrasound

Isolated Congestive Reactional Non-Specific Retro-Peritoneal Adenitis Mimicking a Choledocal Cyst in a Case at the “Luxembourg” Hospital Center in Bamako

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Open Journal of Radiology 2022年第4期12卷 189-196页

作者： Camara Mamoudou Camara Toumin Keita Aboubacar Sidiki Mariko Mahamane Koné Achomba Abdoulaye konat. Moussa Tounkara Youssouf Sidibé siaka Center for Medical Imaging Exploration and Diagnosis (CIMED) Conakry Guinea Medical Imaging Department CH Mother-Child “Luxembourg” Bamako Mali Internal Medicine Department of The Siguiri Prefectural Hospital Gamal Abdel Nasser University Conakry Guinea Medical Imaging Department North Franche Comté Hospital Trevenans France Medical Imaging Department CHU Point G Bamako Mali

The aim of our work was to establish the diagnostic difficulty of isolated nonspecific retroperitoneal congestive adenitis on medical imaging. Patient: This is a 27-year-old patient from a district located 660 km from Bamako with no known medical history or notion of travel. The onset of the disease dates back to 3 years marked by pain in the right hypochondrium and the epigastrium radiating to the back in the form of torsion, of medium intensity associated with periodic vomiting and jaundice. She was referred to the medical imaging department for pain in the right hypochondrium and cholestatic jaundice. The abdominal CT scan with and without contrast injection showed an oval retroperitoneal mass, with regular contours sitting behind the head of the pancreas and in front of the right kidney with its hypo-dense center of density equal to 23 HU measuring 44 × 28 mm, with a thick wall enhanced after injection of contrast product. It was associated with a distended gallbladder with a thin wall and hypo-dense content and a moderate dilation of the intrahepatic bile ducts. Following these examinations, the diagnostic hypothesis of cystic dilation of the common bile duct was retained. Surgery made it possible to cure the retroperitoneal lesion, discectomy of the gallbladder and biopsy of the lesions. The histological examination made it possible to make the diagnosis of isolated nonspecific reactive congestive adenitis. Conclusion: Isolated nonspecific congestive retropancreatic adenitis with a necrotic center poses a diagnostic problem for imaging in our environment because of its similarity to the bile duct cyst. This study, which is a very illustrative case, showed us a diagnostic discrepancy between the result of cross-sectional imaging and that of surgery and pathology.

关键词： Adenitis Cyst Imaging Luxembourg

Effect of the Dynamic Resistance on the Maximum Output Power in Dynamic Modelling of Photovoltaic Solar Cells

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Open Journal of Modelling and Simulation 2022年第1期10卷 48-57页

作者： siaka Touré Solar Energy Laboratory Félix Houphou&#235t-Boigny University of Abidjan Cocody Abidjan C&#244te d’Ivoire

Several studies on PV solar cells are found in the literature which use static models. Those models are mainly one-diode, two-diode or three-diode models. In the dynamic modelling, a variable parallel capacitance is incorporated. Unlike the previous studies which do not clearly establish a relationship between the capacitance and the voltage, in the present paper, the link between the capacitance and the voltage is investigated and established. In dynamic modelling investigated in this paper, the dynamic resistance is introduced in the modelling of the solar cell. It is introduced in the current-voltage characteristic. The value of the dynamic resistance is evaluated at the maximum power point and its effect on the maximum power is investigated. The study shows for the first time, that the dynamic resistance must be introduced in the current-voltage characteristic, because it has an influence on the PV cell output.

关键词： Photovoltaic Solar Cells Dynamic Modelling Dynamic Resistance Diffusion Capacitance Transition Capacitance

Giant Aneurysmal Bone Cyst of the Right Femur about a Case

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Open Journal of Radiology 2023年第3期13卷 139-145页

作者： Cheick Oumar Keïta Aboudramane konat. Yacouba Drissa Traoré Youssouf Koné Abdoulaye Koné Issa Diarra Ilias Guindo Salia Coulibaly Mahamadou Diallo siaka Sidibé Radiology Department Mohammed VI Perinatal Clinic Bamako Mali Radiology Department County Hospital of Sikasso Sikasso Mali Radiology Department CNAM Bamako Mali Radiology Department Jacques Boutard Hospital Center Saint Yrieix La Perche France Medical Imaging Department University Hospital of Point G Bamako Mali Medical Imaging Department University Hospital of Kati Kati Mali Medical Imaging Department Gabriel Touré University Hospital Bamako Mali

Aneurysmal bone cyst (ABC) is a rare bone tumor accounting for 1% - 4% of benign bone tumors. Its etiopathogenesis remains unknown. The main site is the metaphysis of the long bones. ABC occurs almost exclusively in young people, with a slight female predominance. We report an exceptional case of ABC of the femur with involvement of the right hip in a 16-year-old girl in the Medical Imaging Department of Pr Bocar Sidy Sall Hospital of Kati (Mali). We will discuss the clinical and radiological aspects of this pathology. Observation: Mrs N C., aged 16, was referred to the orthopaedic-traumatology department for an X-ray of the right thigh, indicated as having a large, disabling thigh. Clinical examination revealed a large thigh measuring 890 mm in circumference, compared with 300 mm on the contralateral side. Radiographically, the femur showed a blown appearance, with the cortex thinned and broken in places. Exceptionally, the lesion affected the entire femur. On CT scan, we found a voluminous fluid collection occupying the entire right femur, including the right femoral head and homolateral ischium. The cortex was interrupted in places, and the adjacent soft tissues were thinned or laminated, but not infiltrated. Histology revealed haemorrhagic and inflammatory elements compatible with the diagnosis of ABC. Conclusion: ABC is a tumor entity that is often difficult to diagnose. Medical imaging, topographical distribution and histology form an indissociable whole to establish a diagnosis of certainty.

关键词： Aneurysmal Bone Cyst Medical Imaging Femur