9 results on '"Ndong A"'
Search Results
2. Head-mounted camera as a debriefing tool for surgical simulation-based training: a randomized controlled study in Senegal.
- Author
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Ndong, Abdourahmane, Diallo, Adja C., Rouhi, Armaun D., Dia, Diago A., Leon, Sebastian, Dieng, Cheikhou, Diao, Mohamed L., Tendeng, Jacques N., Williams, Noel N., Cissé, Mamadou, Dumon, Kristoffel R., and Konaté, Ibrahima
- Abstract
Introduction: Video feedback, particularly with a head-mounted camera, has previously been described as a useful debriefing tool in well-funded health systems but has never been performed in a low-resource environment. The purpose of this randomized, intervention-controlled study is to evaluate the feasibility of using video feedback with a head-mounted camera during intestinal anastomosis simulation training in a low-resource setting. Methodology: This study recruited 14 first-year surgery residents in Senegal, who were randomized into control and camera groups. Both groups received reading materials and video lectures before performing a manual end-to-end intestinal anastomosis using a synthetic model. The control group received oral feedback, while the camera group's first attempt was recorded, reviewed, and discussed before the second attempt. The primary outcomes were OSATS scores and completion time. Results: There were no significant demographic differences between the groups. Both groups showed significant improvement in OSATS scores from the first to the second attempt (control group: p = 0.002; camera group: p = 0.0021). The camera group demonstrated a significant reduction in completion time on the second attempt (p = 0.0038), unlike the control group (p = 0.17). Both groups reported increased confidence in performing the task (control group: p = 0.003; camera group: p = 0.0029) and had positive perceptions of the workshop's effectiveness. Conclusion: This pilot study suggests that video feedback with a head-mounted camera is feasible and effective for debriefing during intestinal anastomosis simulation training in a low-resource setting, offering a low-cost, effective way to enhance technical skills. Further research with larger sample sizes is recommended to validate these findings and explore long-term impacts on surgical proficiency. [ABSTRACT FROM AUTHOR]
- Published
- 2025
- Full Text
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3. Global perspectives in acute and emergency general surgery in low and middle-income countries: a WSES project protocol for scoping review on global surgery.
- Author
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Hindawi, Mahmoud Diaa, Isik, Arda, Rosa, Fausto, Visconti, Diego, Nechay, Taras, Chowdhury, Sharfuddin, Ndong, Abdourahmane, Mishra, Tushar S., Cioffi, Stefano Piero Bernardo, Piscioneri, Francesco, and Tan, Edward C.T.H.
- Abstract
Background: Around five billion people globally lack access to safe, timely, and affordable surgical facilities and care in low-income and middle-income countries (LMICs). Global initiatives have been launched, including efforts led by organizations. Also, regional efforts have shed light on the unique challenges faced by different areas within LMICs. Despite these efforts, many countries still face significant challenges, including inadequate infrastructure, limited availability of trained surgical personnel, lack of essential medical equipment, and insufficient financial resources allocated to healthcare and their related possible factors. Here is that we aim to identify the progress made in areas such as capacity building, training programs, infrastructure development, and policy reforms, as well as highlight the gaps that persist, providing a foundation for future research. Such a comprehensive scoping review will be crucial to enhance surgical care services and ultimately improve health outcomes in LMICs. Methods: A comprehensive literature search up to November 2024 will be conducted across six major databases. PubMed, Scopus, Ovoid, Web of Science, Cochrane Central, CNKI (China National Knowledge Infrastructure) database. The methodology will follow the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews (PRISMA-ScR) Checklist. The first version of this project will not include a quality appraisal. [ABSTRACT FROM AUTHOR]
- Published
- 2025
- Full Text
- View/download PDF
4. Toxoplasma gondii from Gabonese forest, Central Africa: First report of an African wild strain.
- Author
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Galal, Lokman, Fritz, Matthieu, Becquart, Pierre, Passebosc-Faure, Karine, Plault, Nicolas, Boundenga, Larson, Mombo, Illich Manfred, Kombila, Linda Bohou, Mebaley, Telstar Ndong, Lenguiya, Léadisaelle Hosanna, Ngoubangoye, Barthélémy, N'Dilimabaka, Nadine, Prugnolle, Franck, Forestier, Lionel, Gebremedhin, Endrias Zewdu, Leroy, Eric M., Maganga, Gael Darren, and Mercier, Aurélien
- Abstract
The protozoan Toxoplasma gondii is a ubiquitous and highly prevalent parasite that can theoretically infect all warm-blooded vertebrates. In humans, toxoplasmosis causes infections in both immunodeficient and immunocompetent patients, congenital toxoplasmosis, and ocular lesions. These manifestations have different degrees of severity. Clinical severity is determined by multiple factors, including the genotype of the T. gondii strain involved in the infection. T. gondii exhibits remarkable genetic diversity, which varies according to geography and ecotype (domestic or wild). Previous studies have demonstrated that wild strains of T. gondii are of particular epidemiological interest, as they have been associated with more severe forms of toxoplasmosis in different regions of the world. However, no data on wild strains of T. gondii are available from Africa. In this study, we describe for the first time a wild T. gondii strain from Africa. Wild animals from the forest environment of Gabon, Central Africa, were screened for chronic infection with T. gondii using quantitative PCR. The infecting T. gondii strains were genotyped whenever possible by the analysis of 15 microsatellite markers and by whole-genome sequencing. A new T. gondii genotype was identified in the DNA extract from a heart sample of a duiker (Cephalophus sp.) and was found to be highly divergent from previously described T. gondii populations worldwide, including those from domestic environments in Gabon. This discovery suggests the existence of a wild T. gondii population in Africa. The role of wild T. gondii strains in the incidence of severe toxoplasmosis in Africa remains unclear and requires further investigation. Author summary: The emergence of new pathogens from wildlife is today a well-recognized health threat. Studying these infectious agents has proven to be challenging due to the difficulty in accessing samples from wild animals. In the present study, we took advantage of a recent survey on the viral carriage of wild animals from Gabon, Central Africa, to screen animal samples for the presence of the zoonotic protozoan Toxoplasma gondii. This ubiquitous and highly prevalent parasite can theoretically infect all warm-blooded vertebrates, including humans. This parasite is the etiological agent of toxoplasmosis, a disease causing a substantial public health burden worldwide through different clinical manifestations and varying degrees of severity. A novel genotype was identified in a wild antelope from the Gabonese forest, and was found to be highly divergent from previously described T. gondii populations worldwide, including those from the domestic environment in Gabon. This discovery suggests the existence of a wild T. gondii population in Africa. It has been shown that wild strains of T. gondii are of significant epidemiological relevance, as they have been associated with more severe forms of toxoplasmosis in different regions of the world. The implications of wild T. gondii strains in the incidence of severe toxoplasmosis in Africa remain unclear and merit further investigation. [ABSTRACT FROM AUTHOR]
- Published
- 2025
- Full Text
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5. Chapter 11 - The future of population genomics in developing countries
- Author
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Möller, Marlo, Sima, Carene Anne Alene Ndong, and Petersen, Desiree C.
- Published
- 2025
- Full Text
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6. Chapter 10 - Clinical translation of genomics research in Africa—Mainstreaming medical ethics, equity, genetics education, and public engagement
- Author
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der Merwe, Nicole van, Sima, Carene Anne Alene Ndong, and Syntia Munung, Nchangwi
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- 2025
- Full Text
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7. Contributors
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Basu, Analabha, Carstens, Nadia, Chimusa, Emile R., Choudhury, Ananyo, Croock, Dayna A., Cuttler, Katelyn, der Merwe, Nicole van, Glanzmann, Brigitte, Karamperis, Kariofyllis, Kinnear, Craig, Kotze, Maritha J., Kroon, Elouise Elizabeth, Lea, Amanda J., Müller-Nedebock, Amica Corda, Möller, Marlo, Nieves-Colón, Maria A., Patrinos, George P., Petersen, Desiree C., Ramsay, Michèle, Reynolds, Austin W., Sengupta, Dhriti, Sima, Carene Anne Alene Ndong, Siwada, Anwani, Swart, Yolandi, Syntia Munung, Nchangwi, Uren, Caitlin, and van Rensburg, Roland
- Published
- 2025
- Full Text
- View/download PDF
8. Global perspectives in acute and emergency general surgery in low and middle-income countries: a WSES project protocol for scoping review on global surgery
- Author
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Mahmoud Diaa Hindawi, Arda Isik, Fausto Rosa, Diego Visconti, Taras Nechay, Sharfuddin Chowdhury, Abdourahmane Ndong, Tushar S. Mishra, Stefano Piero Bernardo Cioffi, Francesco Piscioneri, and Edward C.T.H. Tan
- Subjects
Surgery ,RD1-811 ,Medical emergencies. Critical care. Intensive care. First aid ,RC86-88.9 - Abstract
Abstract Background Around five billion people globally lack access to safe, timely, and affordable surgical facilities and care in low-income and middle-income countries (LMICs). Global initiatives have been launched, including efforts led by organizations. Also, regional efforts have shed light on the unique challenges faced by different areas within LMICs. Despite these efforts, many countries still face significant challenges, including inadequate infrastructure, limited availability of trained surgical personnel, lack of essential medical equipment, and insufficient financial resources allocated to healthcare and their related possible factors. Here is that we aim to identify the progress made in areas such as capacity building, training programs, infrastructure development, and policy reforms, as well as highlight the gaps that persist, providing a foundation for future research. Such a comprehensive scoping review will be crucial to enhance surgical care services and ultimately improve health outcomes in LMICs. Methods A comprehensive literature search up to November 2024 will be conducted across six major databases. PubMed, Scopus, Ovoid, Web of Science, Cochrane Central, CNKI (China National Knowledge Infrastructure) database. The methodology will follow the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews (PRISMA-ScR) Checklist. The first version of this project will not include a quality appraisal.
- Published
- 2025
- Full Text
- View/download PDF
9. LC-MS based analysis reveal antimicrobial compounds from Gabonese pharmacopoeia: chemical characterisation and cytotoxicity evaluation
- Author
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Elvis Otogo N’nang, Paulin N. Essone, Judicael Ella Ndong, Augustin Boueya, Kossiwa Kokou, Richard Kriz, Marie Andrée N’nengué, Félix Ovono Abessolo, Bertrand Lell, Peter G. Kremsner, and Selidji T. Agnandji
- Subjects
LC-MS based analysis ,antimicrobial compounds ,cytotoxic activity ,traditional Gabonese medicine ,LC-MS ,Chemistry ,QD1-999 ,Botany ,QK1-989 - Abstract
Plants used in traditional medicine represent an important source of new compounds. Hallea ledermannii (H. ledermannii) (Krause) Verdc. (Rubiaceae), Gossypium barbadense (G. barbadense) (Malvaceae), Pycnanthus angolensis (P. angolensis) (Myristicaceae), Drypetes gossweileri (D. gossweileri) S. Moore (Euphorbiaceae) and Scyphocephalium ochocoa (S. ochocoa) Warb (Myristicaceae) are five plants widely used in traditional Gabonese medicine as antimicrobials. However, little is known about the active compounds associated with their biological activities. Based on botanical studies and the claims of traditional healers regarding the antimicrobial effects of these plants, a study to evaluate the antimicrobial activity and phyto-chemical profile of aqueous extracts of three plants (bark of H. ledermannii, G. barbadense root bark and P. angolensis bark) and methanolic extracts of two plants (S. ochocoa stem bark and D. gossweileri root bark). Under the guidance of LC-MS detection, identified twenty seven (27) potentially active compounds. Eight (8) of these belong to the quinovic acid-type triterpenoid sap-onins identified in the aqueous extract of H. ledermannii, eleven (11) are dibenzofurans, chroman and stigmasterol detected in the methanolic extract of S. ochocoa and eight (8) compounds in the methanolic extract of D. gossweileri are friedelin, drypemolundein B and gossweilone, to name but a few. In parallel, the five extracts were tested on reference bacterial strains: Staphylococcus aureus ATCC 25923, Pseudomonas aeruginosa ATCC 278533, Salmonella thyphi ATCC 13311, Klebsiella pneumoniae ATCC 700603, Shigella flexneri ATCC 24570. Three of these extracts (aqueous extract of H. ledermannii and two methanolic extracts of S. ochocoa stem bark and D. gossweileri root bark) showed moderate activity against Staphylococcus aureus ATCC 25923, with inhibition zones of 12.3 ± 0.5 mm, 10.1 ± 0.5 mm and 7,6 ± 0 mm respectively. In addition, we assessed the toxicity of the three extracts that showed antimicrobial activity using an invertebrate model, Galleria mellonella (GM). We found that the LD varied according to the concentration of the plant material. The aqueous extract of H. ledermannii and the methanolic extracts of S. ochocoa and D. gossweileri were not toxic to G. mellonella. The LD50s (mg/mL) obtained were 93.2 mg/mL [717.2 g/kg body weight (bw)] and 100 mg/mL (762.3 g/kg bw), 95.4 mg/mL [721.1 g/kg body weight (bw)].
- Published
- 2025
- Full Text
- View/download PDF
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