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open Journal of Nephrology 2018年第4期8卷 105-116页

作者： Halle Marie Patrice Bana Eric Loic Fouda Hermine nda mefo’o jean pierre Tewafeu Denis Kaze Folefack Francois Ashuntantang Enow Gloria Faculty of Medicine and Pharmaceutical Sciences University of DoualaCameroon Faculty of Medicine and Biomedical Sciences University of Yaounde IYaoundeCameroon Faculty of Health Sciences University of BueaBueaCameroon

Background: Hemodialysis (HD) is a therapy during which complications such as intradialytic hypertension (IDH) are frequent. We aimed to determine the incidence of IDH and associated factors amongst patients on maintenance hemodialysis in Cameroon. Method: It was a prospective cohort study including end stage kidney disease patients on HD. Data collected were: socio-demographic, comorbidities, current medication, weight, heart rate ultrafiltration rate (UF), albuminemia and electrocardiogram. The first blood pressure (BP) measurement was obtained at the beginning of the session and the last at the end. IDH was defined as an increase in systolic BP ≥ 10 mmHg between the first and the last measurement. Logistic regression was used to look for associated factors, p-value Results: Mean age was 49.06 ± 13.97 years with 64.2% males. Mean number of dialysis session was 11.26 ± 2.49. Incidence of IDH was 48.36%. The median number of IDH episodes was 5 (Range 0 - 12). Factors increasing the risk were hypertension (p = 0.003), number of antihypertensive drugs ≥ 2 (p Conclusion: IDH is frequent amongst patients on maintenance hemodialysis in our setting, with various patients related factors associated.

关键词： Hemodialysis Intradialytic Hypertension Incidence Associated Factors Cameroon

Pregnancies outcome after Assisted Reproductive Technology: A Multicenter Case Control Study in a Low Income Setting Douala, Cameroon

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open Journal of obstetrics and Gynecology 2021年第6期11卷 720-731页

作者： Tchente Nguefack Charlotte Bourdanne Tekouake Didier T. Nana Njamen nda mefo’o jean pierre Ekono Michel Roger Essome Henri Tsingaing Kamgaing Jacques Gwet Bell Ernestine Sandjon Guy Halle Ekane Edie Gregory Faculty of Medicine and Pharmaceutical Science University of Douala Douala Cameroon Department of Gynecology and obstetrics Douala General Hospital Douala Cameroon Faculty of Health Sciences University of Buea Buea Cameroon Department of Biology Douala General Hospital Douala Cameroon Bel Air Plus Clinic Douala Douala Cameroon odyssée Medical Clinic Douala Douala Cameroon Clinique de l’Aéroport Douala Douala Cameroon

The objective was to assess the outcome of pregnancies after assisted reproductive technology (ART). It was a case-control study carried out in four health facilities in Douala-Cameroon, over a period of five years. The cases were pregnant women who conceived through ART and the controls were those who conceived naturally. Cases and controls were matched for maternal age and parity (one case for two controls). A logistic regression analysis was used to compute odds ratios. Statistical significance was set at 0.05. A total of 174 women who conceived through ART and 348 who conceived naturally were enrolled. Some independent factors associated with ART were: age over 45 years [aoR: 7.55; 95% CI (1.55 - 36.76);p: 0.01], twin pregnancies [aOR: 16.55; ont-family:Verdana;">

关键词： Pregnancy outcome Assisted Reproductive Technology Douala

Factors Associated with Haemolytic Anaemia in the Internal Medicine Department of the Douala General Hospital in Cameroon

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open Journal of Blood Diseases 2023年第2期13卷 83-91页

作者： Eveline Ngouadjeu Dongho Brice Utrich Afana Clémence olemba jean pierre nda mefo’o Cécile Ebongue okalla Abdou Temfomo Jules Clement Nguedia Assob Henry Namme Luma Department of Internal Medicine Douala General Hospital Douala Cameroon Department of Biological Sciences Faculty of Medicine and Pharmaceutical Sciences University of Douala Douala Cameroon Department of Microbiology Virology and Immunology Faculty of Medicine and Biomedical Sciences University of Yaoundé 1 Yaounde Cameroon

Introduction: Haemolytic anaemia (HA) is defined as a decrease in haemoglobin (Hb) levels below baseline due to excessive and premature destruction of red blood cells (RBCs) in the periphery resulting in a shortened life span of less than 120 days. Haemolysis can be corpuscular or extra-corpuscular. The aim of our study was to investigate the factors associated with it for optimal management of patients hospitalised in internal medicine at the Douala General Hospital (DGH). Methodology: We conducted an analytical cross-sectional study, including all patients admitted to the internal medicine department of the DGH from 11 February to 20 May 2022, and excluding patients with non-compliant samples. The search for haemolytic anaemia was carried out by means of blood count, reticulocyte count, blood smear, unconjugated bilirubin, lactate dehydrogenase and direct Coombs test. Sociodemographic, clinical and biological parameters were collected and analysed. Correlation was defined for a p value 0.05. Results: This study included 147 patients, 50.34% of whom were men, for a sex ratio of 1.01. The mean age was 52 ± 17.9 years. The most represented age group was 56 - 70 years (n = 49;33%) with extremes from 15 to 90 years. We counted 29.3% cases of haemolytic anaemia (HA) and 13.9% cases of autoimmune haemolytic anaemia (AIHA). Haemolytic anaemia (HA) was present in 54.14% of men for a sex ratio of 1.38;the most represented age group was 40 - 55 years, 37.2%. HA was associated with jaundice (oR: 3.74, CI: [1.70 - 8.22], p = 0.001), HIV - AIDS (oR: 2.72, CI: [0.98 - 7.53], p = 0.05), thrombocytopaenia (oR: 3.53, CI: [1.58 - 7.89], p = 0.02). LDH was elevated (oR: 2.86, CI: [1.30 - 6.26], p = 0.00) as well as elevated reticulocyte count (oR: 3.84, CI: [1.75 - 8.44], p = 0.01). Unconjugated bilirubin was elevated in all these patients. In multivariate analysis, factors associated with HA were a history of HIV/AIDS, jaundice, thrombocytopaenia and elevated reticulocyte count. Con

关键词： Haemolytic Anaemia Internal Medicine DGH

Antibiotics Susceptibility Profile of Staphylococcus aureus Clinical Isolates Collected in Hospitals in the City of Douala (Cameroon)

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Journal of Biosciences and Medicines 2022年第8期10卷 188-200页

作者： jean pierre nda mefo’o Yanne Sabekob Grace Dalle Ngondi Emmanuel Roddy Mengue Elodie Ngo Malabo Nancy Handa Guy Pascal Ngaba Dieudonné Adiogo Cécile okalla Ebongue Laboratory of Clinical Biology Douala General Hospital Douala Cameroon Department of Biological Sciences Faculty of Medicine and Pharmaceutical Sciences University of Douala Douala Cameroon Laboratory Laquintinie Hospital Douala Cameroon Kansas City University of Medicine and Biosciences Kansas City MO USA Laboratory Unit of the Gyneco-obstetric Douala Pediatric Hospital Douala Cameroon

Introduction: Staphylococcus aureus is one of the most important agents involved in community and hospital-acquired infections. Due to the multi-drug resistance of strains to antibiotics, treatment to eradicate it is becoming more difficult and poses a global public health problem. Methodology: This was a cross-sectional study conducted from March to August 2020 in hospitals in the city of Douala, including all S. aureus isolates from diagnostic samples. Strain identification and antibiotic susceptibility testing were performed using the Vitek2 CompactTM (BioMerieux). Results: During the study period, 136 non-repetitive S. aureus strains were identified with a high frequency of methicillin-resistant S. aureus of 78.7%. The majority of the strains originated from the Douala General Hospital (66.9%) and was most frequently isolated from blood culture samples (55.1%). The study of biochemical characteristics showed that most of the strains identified had between 87% and 99% homology with the reference strain. The most active antibiotics were Quinupristin/Dalfopristin (94.2%), Linezolid (87.8%) and Vancomycin (84.2%). Methicillin resistance was associated with decreased susceptibility of S. aureus to other antibiotics such as Gentamycin (44.9%), Erythromycin (38.2%), Tetracycline (38.3%), Trimethoprim (21.4%), Ciprofloxacin (19.1%) and Levofloxacin (24.0%). Inducible MLSb and constitutive resistance phenotypes were identified with 26.7% and 22.8% respectively. Conclusion: The sensitivity of S. aureus strains differs from one antibiotic family to another, and remains good for molecules that are not available in our context. The high frequency of Methicillin-Resistant S. aureus shows the continuous progression of multi-resistant strains of S. aureus and their decreased sensitivity to usual antibiotics becomes more and more alarming.

关键词： Staphylococcus aureus Multidrug Resistance MRSA Douala

Antibiotics Resistance of Urogenital Mycoplasma in Sexually Active Women Attending Gynecologic Consultation in Douala (Cameroon)

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Advances in Microbiology 2023年第12期13卷 559-570页

作者： jean pierre nda mefo’o Rosa Fetue Notio Fulbert Mangala Nkwele Grace Dalle Ngondi Emmanuel Roddy Mengue Elodie Ngo Malabo Charlotte Tchente Nguefack Cécile okalla Ebongue Théophile Nana Njamen Laboratory of Clinical Biology Douala General Hospital Douala Cameroon Department of Biological Sciences Faculty of Medicine and Pharmaceutical Sciences The University of Douala Douala Cameroon Department of Surgery and Specialties Faculty of Medicine and Pharmaceutical Sciences The University of Douala Douala Cameroon Mother and Child Department Douala General Hospital Douala Cameroon Department of obstetrics and Gynecology Faculty of Health Sciences University of Buea Buea Cameroon

Introduction: Mycoplasmas are bacteria commonly found in the commensal flora of humans and can occasionally be pathogenic. The population and the geographical area determine their susceptibility to various antibiotics. Methodology: We carried out a cross-sectional study from January to June 2022 at the Douala General Hospital. All women who were sexually active and willing to participate were included. Endo-cervical swabbing was used to collect the samples. Culture and antibiotic susceptibility testing were performed in a liquid medium using Mycoplasma-SystemPlus Gallery (Liofilchem). All samples that degraded urea (threshold > 103 for Ureaplasma urealyticum) and arginine (threshold > 104 for Mycoplasma hominis) were deemed positive. Results: A total of 107 women with a median age of 33 ± 8.3 years and a predominance of 30-40 years (41.1%) were included. The frequency of mycoplasma infection was 73.8% with 34.1%, 11.4% and 54.4% for Ureaplasma urealyticum, Mycoplasma hominis and co-infection respectively. Resistance rates to Minocycline were low, 1.3% for Ureaplasma urealyticum and 3.7% for co-infection;for Pefloxacin the resistance rates were 3.7% (Ureaplasma urealyticum, Mycoplasma hominis) and 22.8% (co-infection). Ureaplasma urealyticum had a resistance rate of 3.7% for Erythromycin, 1.3% for Clarithromycin and 5% for Azithromycin. There was no significant correlation between risk factors and infection. Vaginal cleansing and the development of resistance in mycoplasma infection were found to be significantly correlated (oR = 6.915 [1.52 - 31.55];(p = 0.013)). Conclusion: Minocycline was the most active antibiotic and Ureaplasma urealyticum was the species with the lowest rate of resistance. Antibiotic resistance was more common in co-infected people than mono-infected. Antibiotic resistance was independently correlated with vaginal douching.

关键词： Urogenital Mycoplasma Sexually Active Women Douala Cameroon

Profiling and Determinants of Impaired Lipid Profile Parameters among Breast Cancer Women of Childbearing Age Living in Douala, Cameroon

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Journal of Biosciences and Medicines 2023年第5期11卷 193-211页

作者： Idriss Ntatou Lemouchele Suzi Pascale Mbougang Esther Dina Bell Loick Pradel Kojom Foko Eric Fouelifack Nzeko Cecile okalla Ebongue jean pierre nda mefo’o Martin Luther Koanga Mogtomo Rosalie Anne Ngono Ngane Department of Biochemistry Faculty of Science The University of Douala Douala Cameroon Depatment of Biological Sciences Faculty of Medicine and Pharmaceutical Sciences The University of Douala Douala Cameroon General Hospital Douala Douala Cameroon Depatment of Animal organisms Faculty of Science The University of Douala Douala Cameroon

objective: Breast cancer in women of childbearing age (WCBA) is a major public health concern. This study aimed to determine variation and determinants in lipid profile among Cameroonian WCBA diagnosed with breast cancer. Materials and Methods: A case-control study took place at two reference hospitals in Douala, Cameroon. A total of 176 WCBA (88 cases and 88 controls) were finally enrolled. Interviewer-administered questionnaires were used to collect sociodemographic, behavioural, clinical and anthropometric data. Three millilitres of venous blood were collected for analysis of total cholesterol (TC), high density lipoprotein cholesterol (HDL-c), low density lipoprotein cholesterol (LDL-c) and triglycerides (TG). Results: overweight was predominantly seen in cases and controls. Serum levels of TC and LDL-c were significantly lower in cancer women (167.02 ± 45.46 vs 183.12 ± 27.38 mg/dL, p = 0.005 for TC;85.83 ± 40.34 vs 105.25 ± 29.95 mg/dL, p = 0.0004 for LDL-c), while HDL-c levels were higher in controls (45.09 ± 7.20 vs 38.24 ± 11.14 mg/dL, p Conclusion: This study suggests the influence of breast cancer on lipid profile parameters especially HDL-c and LDL-c, and possibly their putative clinical utility for early diagnosis in premenopausal women in Cameroon.

关键词： Breast Cancer Women of Childbearing Age Lipoprotein Impairment Determinants Cameroon

Microbial Ecology and Antibiotic Susceptibility Profile of Germs Isolated from Hospital Surfaces and Medical Devices in a Reference Hospital in Douala (Cameroon)

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Advances in Microbiology 2018年第2期8卷 125-137页

作者： Cécile okalla Ebongue Chanceline Mayoudom Nguatcheussi jean-pierre nda mefo’o Joss Bollanga Dieudonné Adiogo Henry Namme Luma Laboratory of Clinical Biology General Hospital Douala Cameroon Department of Biological Sciences Faculty of Medicine and pharmaceutical Sciences University of Douala Douala Cameroon Committee for Hygiene and the Fight against Nosocomial Infections General Hospital Douala Cameroon

Background: The hospital environment is largely contaminated with pathogenic microorganisms. This colonization is a threat for hospitalized patients, especially in high-risk services. The purpose of this study was to identify the germs found on surfaces and medical devices in some departments of the General Hospital of Douala, and to establish their susceptibility profile to most commonly used antibiotics in this health facility. Results: We collected 114 surface and medical device samples, and seeded different culture media for Gram-positive and Gram-negative aerobic bacteria. of the total samples, 108 were positive and 137 bacterial strains were isolated. The colony count revealed a high rate of contamination. Enterobacter cloacae was the most represented specie (53.3%), followed by Pseudomonas aeruginosa (22.6%) and Klebsiella pneumoniae (6.6%). Various coagulase-negative Staphylococci have been isolated in some departments, as well as Cryptococcus laurentii and molds. The isolated strains showed low susceptibility to the antibiotics tested. Enterobacter cloacae showed low susceptibility for all tested molecules, except for carbapenems with rates ranging from 82% to over 94% in Maternity, Intensive Care and Neonatology units. The strains coming from the Haematology Protected Ward were resistant to all antibiotics, except fluoroquinolones with a susceptibility rate of 50% for ofloxacin. Conclusion: The hospital surfaces and medical devices are highly contaminated by environmental bacteria, with low susceptibility rates to antibiotics. Microbiological controls of the environment should be regular in critical areas in order to reinforce measures to prevent diffusion of multi-resistant bacteria.

关键词： Microbial Ecology Hospital Environment Susceptibility to Antibiotics Douala

Detection of the Production of Klebsiella Pneumoniae Carbapenemase, New Delhi Metallo-Beta-Lactamase and oxacillinase-48-Type Carbapenemases by Gram-Negative Bacilli in Resource-Limited Setting

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Advances in Microbiology 2021年第10期11卷 579-590页

作者： Cecile okalla Ebongue Gabin Gaël Simo jean pierre nda mefo’o Grace Dalle Ngondi Emmanuel Roddy Mengue Guy Pascal Ngaba Dieudonne Adiogo Laboratory of Clinical Biology General Hospital Douala Cameroon Department of Biological Sciences Faculty of Medicine and Pharmaceutical Sciences Douala Cameroon Laboratory Unit Laquintinie Hospital Douala Cameroon Laboratory Unit Gyneco-Obstetric and Pediatric Hospital Douala Cameroon

Background: The increasing resistance of bacteria to various antibiotics is a worldwide public health issue. Carbapenems that have elicited great hope in treating infections caused by multidrug-resistant germs have seen their efficacy narrowed over time with the emergence of other novel resistance mechanisms, notably the production of Carbapenemases. Methods: A prospective cross-sectional study was conducted from May 2017 to May 2018 in Douala (Cameroon) to detect carbapenemase-producing Gram-negative bacilli. Isolated strains were identified using the Vitek2TM system. Antimicrobial susceptibility testing was performed using the Kirby-Bauer disk diffusion method on agar plates with 20 selected commercially available antibiotic discs. The bacterial strains were tested for the production of three Carbapenemases (oXA-48, NDM, KPC), using an immuno-chromatographic technique, with the “RESIST-3 o.K.N. K-SeT” rapid detection kit. Results: During the study period, 1687 strains of Gram-negative bacilli were isolated in selected laboratories with a total of 200 multi-resistant strains identified (11.9%). Among the multi-resistant strains, E. coli was the species most represented in Enterobacteriaceae (27.5%) followed by K. pneumoniae (15.5%) and the non-fermenting Gram-negative bacilli were predominantly P. aeruginosa (20.5%). These strains mainly came from urine and pus, i.e. 41% and 32% respectively. Thirty-two (16%) strains produced one of the Carbapenemases with a higher frequency at the General Hospital (84%). NDM-type carbapenemase was the most frequently identified (8.5%), oXA-48 type 7.5%, and no KPC production was observed. Among the Enterobacteriaceae 22.9% produced Carbapenemases and only 5.1% of the non-fermenting bacilli produced these enzymes. The isolates strains were completely resistant to all antibiotics except Amikacin and Fosfomycin. The strains producing the NDM-type carbapenemase

关键词： Carbapenemases Gram-Negative Bacilli Multidrug-Resistance Cameroon

Prevalence and Risk Factors of Peripheral Artery Disease in a Group of Apparently Healthy Young Cameroonians: A Cross-Sectional Study

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World Journal of Cardiovascular Diseases 2018年第2期8卷 111-122页

作者： Félicité Kamdem Yacouba Njankouo Mapoure Ba Hamadou Fanny Souksouna Ahmadou Musa Jingi Caroline Kenmegne Fernando Kemta Lekpa Jaff Fenkeu Kweban Gisèlei Mandy jean pierre nda mefo’o Henry Luma Marie Solange Doualla Internal Medicine Service Douala General Hospital Douala Cameroon Faculty of Medicine and Pharmaceutical Sciences University of Douala Douala Cameroon Faculty of Medicine and Biomedical Sciences University of Yaounde I Yaounde Cameroon Chemical Pathology Laboratory Douala General Hospital Douala Cameroon

Background: The?burden of peripheral artery disease (PAD) is not well known among apparently healthy people in Africa. Aim: To determine the prevalence and associated risk factors of PAD in a group of blood donors seen at the Douala General Hospital—Cameroon. Methods: Between 1st November 2015 and 30th April 2016, we carried out a cross-sectional study. Participants were consenting adults of both sexes, aged ≥ 21 years who presented for blood donation, and were tested HIV negative. We collected socio-demographic data and their past history. We carried out a physical examination and measured their Ankle-Brachial Index (ABI). We defined PAD as an ABI Results: We recruited 103 participants, 55.4% males. The mean age was 33 ± 10 years. The mean ABI on left and right leg was 1.04 ± 0.1 and 1.02 ± 0.1respectively. ABI was higher in males than females both legs (p 0.05). PAD was seen in 11 (10.7%) participants. This was higher in females than males (3.6% versus 19.2%, p = 0.026). Among those with PAD, 8 (72.7%) were asymptomatic (Males: 100% versus Females: 66%, p = 0.9). After adjusting for age and gender, sedentary lifestyle (aoR: 7.14, [95% CI: 1.38 - 33.3], p = 0.019), and female gender (aoR: 6.2, [95% CI: 1.26 - 30.5], p = 0.025) were significantly associated with PAD. Conclusion: The prevalence of PAD was high in this group of HIV negative blood donors, most of whom were asymptomatic. This was associated with females, and a sedentary lifestyle.

关键词： Peripheral Artery Disease ABI Prevalence Risk Factors Douala