Articles

Nosocomial infections are infections acquired during a stay in a healthcare facility, representing a major public health challenge worldwide, and particularly in Africa, due to their frequency, potential severity, and associated costs. In Congo, their epidemiological profile is not yet well understood. It’s in this context that we undertook to conduct a retrospective descriptive study on nosocomial infections between January 1, 2012, and December 31, 2016, in the internal medicine department of the Army Central Hospital of Brazzaville, in order to analyze the bacteriological profile of nosocomial infections.The study involved 189 patients. The results revealed that hospital-acquired infections were frequent, with a female predominance (71.43%), an average age of 32 years, and risk factors including self-medication with antibiotics (51%) and urinary catheterization (39%). Urinary tract infections were the most common (57%), with Escherichia coli as the main pathogen (17%), and mortality from these infections reached 53%.The study highlighted a high mortality rate linked to hospital-acquired infections, primarily associated with HIV status and self-medication. Management, prevention, and infection control measures, including improved antibiotic stewardship, are necessary to reduce mortality.

Introduction: Erectile dysfunction (ED) is a common issue impacting millions of men around the globe, with notable effects on both life quality and mental health. This clinical trial evaluated the clinical efficacy, onset of action, safety, and patient satisfaction of Tadaflexe (Tadalafil 10 mg) formulated as an oral gel in Yemeni honey sachets. The formulation was designed to enhance absorption and provide a natural delivery vehicle for Tadalafil, a selective phosphodiesterase type 5 inhibitor used for erectile dysfunction (ED). This study aimed to assess the effectiveness, safety, and tolerability of Seldiflexe, which is a new oral gel sachet formulation of Tadaflexe (Tadalafil 10 mg) with 5 g of Yemeni honey, in comparison with standard Tadalafil 10 mg tablets. Materials and methods: A randomized, double-blind, controlled trial was carried out with 80 male participants who had been diagnosed with erectile dysfunction (ED). Subjects were divided into two groups: the Tadaflexe (Tadalafil 10 mg) oral gel sachet group A (n = 40) and the standard Tadalafil 10 mg tablet group B (n = 40) for a duration of 4 weeks. The main measures included changes in the scores of the International Index of Erectile Function (IIEF), time until effects began, and the profile of any adverse events.Results: The analysis revealed a statistically significant improvement in erectile function scores post-treatment with Tadaflex oral gel. The onset of action was notably faster compared to standard Tadalafil tablets. Adverse effects were minimal, and overall satisfaction was high among participants. The time it takes for Tadaflexe (Tadalafil 10 mg) in Yemeni honey oral gel sachet to start working is 22.5 ± 4.2 minutes, which is significantly faster than Tadalafil 10 mg tablets was 38.7 ± 5.6 minutes at p < 0.001. However, after four weeks, there was no significant difference in the IIEF scores between Tadaflexe oral gel (20.1 ± 2.8) and Tadalafil tablets (18.2 ± 3.1) were significantly different at p < 0.05. On the other hand, the adverse effects were significantly less with Tadaflexe oral gel sachet as compared with Tadalafil tablets.Conclusion: The study demonstrated a significantly faster onset of action, excellent tolerability, and improved patient preference compared with conventional tablet formulations.

This study explores “Gyneco-Obstetric Algebraic Didactics” (GOAD), a pioneering approach fusing mathematical didactics with obstetric learning. Using inventive models such as the Ovary-Function Theorem (OFT) and the Cervix-Dilation Equation , the cognitive and emotional outcomes of teaching mathematics using obstetric metaphors are rigorously evaluated. Sixty pregnant mathematicians and sixty gynecology students participated, revealing that metaphoric teaching not only improved calculus scores by 16.5 points but also reduced birth anxiety by 13.7%. The introduction of Fibonacci-based labor charts led to an unexpected increase in affinity for abstract algebra, suggesting possible interdisciplinary applications for both education and clinical practice.

Prothrombin Time (PT), also called Quick’s Time (QT), is a coagulation test expressed in seconds, measured in the presence of tissue thromboplastin and calcium ions. Similarly, Activated Partial Thromboplastin Time (APTT) is measured in the presence of phospholipids, an activator, and calcium ions. These two tests are among the most commonly used in hemostasis. Their execution absolutely requires plasma samples used as quality controls, whether commercial or prepared locally (“pooled” in the laboratory).This descriptive study aimed to determine the stability duration of an in-house control pool for PT and APTT tests, prepared in the laboratory of the Hematology and Blood Bank service of the Yaoundé University Teaching Hospital, Cameroon.Plasma was collected after centrifugation, mixed, and then frozen at a temperature of -30 °C to preserve the coagulation factors, especially the most labile ones. The plasma pool was then aliquoted, stored at -30 °C protected from light in a domestic freezer, and kept for a period of two weeks. A portion of the pool was tested within four hours of collection: 30 PT and APTT analyses were performed.The assay was performed manually using the tube tilt method. The means obtained were 12.71 seconds for PT and 30.66 seconds for APTT. The acceptability limits (mean ± 2 standard deviations), calculated from the standard deviation, were 11.38 to 14.04 seconds for PT and 27.96 to 33.37 seconds for APTT.The plasma pool was then analyzed daily in duplicate. The average of the results for each day was plotted on a Levey-Jennings chart and interpreted according to Westgard rules. The results showed that the stability duration of the normal control pool is eight (8) days for PT and seven (7) days for APTT.In a context marked by a recurrent shortage of quality control reagents, for various logistical and economic reasons, these results offer a reliable alternative to commercial control samples, which are often expensive or unavailable. The use of locally prepared control pools could thus compensate for stock-outs of normal or pathological control reagents supplied by manufacturers.

Introduction: The document introduces the topic of medical termination of pregnancy (MTP) using misoprostol, a synthetic prostaglandin E1 analogue. It discusses the advantages and challenges of this method, and the research gap in the Gulf region and the Middle East. It also states the aim of the study, which is to evaluate the safety, efficacy, and acceptability of misoprostol for MTP in Bahrain. Methods: The document describes the study design, data source, and inclusion criteria. It explains that the data was collected from the Hope system in King Hamad University Hospital and included women in the first and second trimester of pregnancy who were undergoing MTP as per the FIGO protocol. It also mentions the statistical analysis that was used to compare the outcomes of different regimens, dosages, and routes of administration of misoprostol. Results: The document reports the main findings of the study, such as the success and failure rates of MTP, the association between previous deliveries and MTP outcomes, the optimal number and route of misoprostol doses, the length of hospital stay, and the incidence of complications. It also presents some figures to illustrate the results. Discussion: The document interprets the results and compares them with previous studies. It highlights the high efficacy of the sublingual route of misoprostol but also acknowledges the side effects and limitations of this route. It suggests that two doses of 600mcg or 800mcg of misoprostol are sufficient for MTP. It also identifies the strengths and weaknesses of the study and proposes some future directions for research. Conclusion: The document concludes that the study provides a better understanding of the outcomes of misoprostol for MTP in a controlled environment. It asserts that misoprostol is a safe and effective option for women seeking abortion in the first and second trimester, especially in low-resource settings. It also emphasizes the need for evidence-based guidelines and counseling for misoprostol use.

Introduction: Cervical cancer remains one of the most common malignancies affecting women worldwide, with over 600,000 patients globally every year, and is a leading cause of cancer-related mortality in women. Although there have been advancements in both screening and prevention, radiation therapy, with or without chemotherapy, is the standard of care for treating locally advanced cervical cancer. Radiation typically consists of two methods, external beam radiation therapy (EBRT) and brachytherapy, which have both evolved in their own respective ways technologically and for patient accessibility. This article aims to review the different cervical cancer brachytherapy techniques, such as intracavitary and interstitial approaches, including their advantages and drawbacks.Methods: Resources on PubMed between the years 2000 and 2024 were reviewed based on their relevance to the approaches of brachytherapy. Articles were found through the use of key terms and Boolean operators such as ("cervical cancer,” AND “brachytherapy," OR “high dose rate brachytherapy,”) OR (“intracavitary,” OR “interstitial brachytherapy,” OR “hybrid brachytherapy,”). Discussion: Three techniques of brachytherapy are de: intracavitary brachytherapy (ICBT), interstitial brachytherapy (ISBT), and hybrid intracavitary/interstitial brachytherapy (HBT).Conclusion: Brachytherapy is a vital part of definitive cervical cancer treatment. While ICBT remains the standard of care for most cervical cancers, ISBT and HBT approaches remain important treatment options. HBT has been shown to address variances in patient anatomy and tumor geometry, resulting in better tumor dose coverage and improved outcomes through minimizing toxicity.

Background: We report a case of Peri-Partum Cardiomyopathy in a 28-year-old Primigravida, who came in labor and underwent a Caesarean Section in view of meconium-stained liquor, fetal distress. On day 4 post-partum, she complained of a sudden onset of shortness of breath, cough, and restlessness in the morning. The patient had no prior history of heart disease or respiratory disease. Patient developed sudden onset tachypnoea and tachycardia with bilateral crepitus. On further evaluation, she was diagnosed with Peripartum Cardiomyopathy. Results: The case was successfully managed by a multi-disciplinary team using dobutamine, diuretics, and Angiotensin receptor blockers. Conclusion: The case report aims to present a case of Peripartum cardiomyopathy with early diagnosis and successful management in a secondary care level hospital. Peripartum (postpartum) cardiomyopathy is the most common cardiomyopathy in pregnancy, defined as an idiopathic cardiomyopathy that presents with heart failure secondary to left ventricular systolic dysfunction toward the end of pregnancy or after delivery, in the absence of any other cause of heart failure.  It is a diagnosis of exclusion, and the majority are diagnosed postpartum. Although the LV may not be dilated, the ejection fraction is nearly always reduced below 45%. Incidence of PPCM is 1:3000 to 1:15000 pregnancies. It is a major cause of morbidity and mortality if diagnosis gets delayed; therefore, early diagnosis and timely management can affect patients’ long-term prognosis. This case report aims to raise awareness in health professionals about the possibilities of PPCM and its symptoms, as in our case.

Purpose: To determine trends in breast imaging services utilization among privately and government-insured patients at a national radiology practice.Method: Monthly breast imaging volume data from January 2019 to September 2022 were analyzed across five insurance types: three commercial carriers (Com1-Com3), Medicaid, and Medicare. Primary analysis involved calculating quarterly volumes and standard errors of the mean, followed by a joinpoint regression to identify trend inflection points and quarterly percentage changes (QPC). In the secondary analysis, the entire period trend was obtained and measured as the average quarterly percentage change (AQPC).Results: Between 2019 Q1 and 2022 Q3, a total of 4,640,619 breast imaging services were accessed, including 2,034,833 2D screening mammograms, 1,640,689 screening digital breast tomosynthesis, 497,592 diagnostic mammograms, 452,549 breast ultrasounds, and 14,956 breast MRIs. AQPC values for imaging modalities varied across insurance types. Medicare and Medicaid patients showed the highest rates of utilization increases, particularly for modalities other than screening breast tomosynthesis, where private insurers dominated. Variations were observed between different commercial payors.Conclusion: Breast imaging utilization increased among patients insured by Medicare and Medicaid from 2019 to 2022, outpacing that of those with private insurance. These findings contrast previous research suggesting better access and utilization among privately insured individuals, highlighting increased access for government-insured patients in this study.

Suicide has become a major cause of human death during the last few decades. It is important to understand the dynamics of suicide and identify effective prevention strategies. In this work, bifurcation analysis and multi objective nonlinear model predictive control are performed on a suicide dynamics model. Bifurcation analysis is a powerful mathematical tool used to deal with the nonlinear dynamics of any process. Several factors must be considered, and multiple objectives must be met simultaneously. The MATLAB program MATCONT was used to perform the bifurcation analysis. The MNLMPC calculations were performed using the optimization language PYOMO in conjunction with the state-of-the-art global optimization solvers IPOPT and  BARON. The bifurcation analysis revealed the existence of limit and branch points. The MNLMC converged on the Utopia solution (best possible). The limit and branch points (which cause multiple steady-state solutions from a singular point) are very beneficial because they enable the Multi objective nonlinear model predictive control calculations to converge to the Utopia point (the best possible solution) in the model. It is proved (with computational validation) that the branch points were caused because of the existence of two distinct separable functions in one of the equations in the dynamic model. A theorem was developed to demonstrate this fact for any dynamic model.