Browsing by Author "Ibrahim, S."

Now showing 1 - 6 of 6
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    Clomiphene Resistant Polycystic Ovarian Syndrome: Analysis of Outcomes following Laparoscopic Ovarian Drilling in Infertile Women in Ilorin, North-Central, Nigeria.
    (African Health Research Organization, 2017) Omokanye, Lukman O.; Olatinwo, Abdulwaheed O.; Panti, Abubakar A.; Ibrahim, S.; Oyedepo, O.O.; Ige, O.A.; Adegboye, M.B.
    Background: Laparoscopic ovarian drilling (LOD) is one‑off treatment modality for clomiphene citrate (CC)‑resistant polycystic ovarian syndrome (PCOS) avoiding the need of medical therapy and its attendant complications. Aims and Objectives: This study aimed at determining the efficacy of LOD in women with anovulatory infertility secondary to CC‑resistant PCOS and factors influencing reproductive outcomes. Materials and Methods: A cross‑sectional study of infertile women who underwent LOD on account of CC‑resistant PCOS between January 2012 and December 2015 at a tertiary institution. Results: Patients aged 24–38 years (29.7 ± 3.6 years) and their body mass index (BMI) ranges from 20 to 35 (26.3 ± 4.3). The majority (90.5%) were nulliparous. Most (61.3%) had primary infertility. Their duration of infertility ranges from 1 to 13 years (4.3 ± 2.7) and ovarian volume ranges from 10 to 24 cm3 (mean, right ovary = 15.2 ± 3.2; left ovary = 16.3 ± 3.2). The number of drills per ovary ranged from 4 to 14 (mean, right ovary = 7.4 ± 2.1; left ovary = 7.3 ± 2.1) and the luteinizing hormone/follicle stimulating hormone (LH)/FSH ratio ranges from 2 to 6 (3.2 ± 1.4). All achieved spontaneous resumption of menses and ovulation with mean durations of 4.0 ± 1.8 days and 5.3 ± 3.2 weeks, respectively. Eighty‑three (60.6%) clinical pregnancies were recorded, of which 68 (49.6%) resulted to live births (61 singletons and 7 twin births) and 14 (10.2%) early first trimester miscarriages. The mean time interval from LOD to pregnancy was 4.4 ± 1.1 months. There was a significant association between BMI, duration of infertility, FSH/LH ratio, and pregnancy outcomes (P < 0.05). Conclusion: LOD is the most preferred treatment modality for CC‑resistant PCOS as it resulted in higher pregnancy rate.
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    Female factor infertility: Laparoscopic evaluation at a public health facility in Ilorin, Nigeria.
    (College of Medicine KLE University, Belgaum, India, 2017) Omokanye, Lukman O.; Ibrahim, S.; Olatinwo, Abdulwaheed O.; Durowade, K.A.; Raji, S.T.; Biliaminu, S.A.; Salaudeen, A.G.
    BACKGROUND: Infertility is a problem of global proportions, the majority being the residents of developing countries. The contribution of female factor is assuming a tremendous proportion. Laparoscopy remains an indispensable tool in the evaluation of the fertility potential of these female partners. AIMS: This study was aimed at determining the various causes of female factor infertility among female partners of infertile couple in a tertiary health facility. METHODS: A cross-sectional observational study of ninety seven (97) eligible infertile women who underwent diagnostic laparoscopy between 1st January 2012 and 31st December 2015 were enrolled for the study. The data were analyzed using SPSS/PC version 16.0 and p value was preset at <0.05. RESULTS: The patients aged 21-50 years with a mean age of 33.2 ± 6.6 years. Majority (79.4%) were nulliparous. Fifty (51.5%) had primary infertility. Their duration of infertility ranged from 1to 33years (5.7 ± 5.5 years). Most (63.9%) belong to middle social class and their spouse age ranges between 28-60 years (39.0 ± 7.5). More than a quarter had clomiphene resistant Polycystic Ovarian Syndrome, 19 (19.6%) tubal blockage, 13 (13.4%) uterine fibroid and 10 (10.3%) each had endometriosis, peritubal and ovarian adhesions, ovarian cyst and normal findings respectively. There was significant association between patients’ age, intra-operative findings and tubal patency evaluation on laparoscopy (P < 0.05). CONCLUSION: Laparoscopic procedures are less invasive, more convenient and more precise for diagnosis of infertility in women. The common causes responsible for infertility were polycystic ovarian syndrome, tubal occlusion, uterine fibroid, endometriosis, peri-tubovarian adhesions and ovarian cyst.
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    Harmonic Mitigation in Inverter Circuits Through Innovative LC Filter Design Using PSIM
    (Universitas Ahmad Dahlan, Indonesia, 2024-04) Usman, H.M.; Mahmud, M.; Saminu, S.; Ibrahim, S.
    The increasing use of renewable energy sources, such solar and wind power, and the growing ubiquity of High Voltage Direct Current (HVDC) transmission systems to improve power transmission efficiency are the main factors behind the increased deployment of inverter circuits. High harmonic distortions in the resultant sine wave, however, are a major problem for inverter circuits and could jeopardise circuit efficiency if left unchecked. This study presents a novel, affordable, and effective LC filter that is intended to remove almost all harmonic content from inverter circuits. The study uses PSIM software for the modelling, design, and control of a three-phase inverter. Starting with DC power supply, the study makes use of effective three-legged IGBT (insulated gate bipolar transistor) semiconductor devices as switch elements due to their high and current rating as well as faster operation. The switching gate pulses that turn inverter switches on and off at regular 60-degree intervals are produced by the pulse controller that controls the switches. This study's results show that the innovative LC filter in the inverter significantly reduced total harmonic distortion (THD) in all phases of the power signal. Specifically, THD decreased from 37.68% to 0.47% in the red phase, from 37.69% to 0.48% in the blue phase, and from 37.71% to 0.48% in the yellow phase. This reduction results in a notable improvement in power quality in all phases of the signal. Additionally, there is a noticeable increase in voltage magnitude, stabilizing and raising levels from 17.92 V to 23.83 V in the red phase, 17.93 V to 23.81 V in the blue phase, and 17.83 V to 23.81 V in the yellow phase due to the LC filter. These results demonstrated the effectiveness of the LC filter-equipped inverter for industrial, HVDC, and renewable energy applications.
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    Hazard assessment and cytogenotoxic effect of different concentrations of mercury chloride sterilant using the Allium cepa assay
    (2024) Animasaun, D.A.; Adedibu, P.A.; Afolabi, S.O.,; Abdulkareem, K.A.; Ibrahim, S.; Krishnamurthy, R
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    Integrated reporting and corporate performance of listed industrial goods companies in Nigeria
    (Published by Department of Accounting, Modibbo Adama University, Yola., 2022-12) Abogun, S; Adigbole, Ezekiel; Azeez, T. A; Ibrahim, S.; Osemene, O.F
    The traditional financial reporting style has created some information gaps which, in some cases, have led to financial crises. This has become a source of concern calling for urgent attention in the contemporary business world. Hence, the study examined the impact of integrated reporting on corporate performance of listed industrial goods companies in Nigeria. The objectives of this study were to: evaluate the influence of financial capital reporting, manufactured capital reporting, human capital reporting, intellectual capital reporting, social capital reporting and natural capital reporting on corporate performance. The population of the study consisted of all the 13 listed industrial goods companies in Nigeria and all of them were used for the study. Secondary data used were extracted from the published annual audited financial reports of the companies studied from 2013 to 2020. The pooled Ordinary Least Square regression was used in data analysis. The study found that financial capital reporting, manufactured capital reporting, intellectual capital reporting, human capital reporting, and social capital reporting, each has a positive significant influence on corporate performance ( β = 0.0203, P < 0.05; β = of 0.0639, P < 0.05; β = 0.0118, P < 0.01; β = 0.0011, P < 0.10; β.= 0.4252, P < 0.01) respectively; and while natural capital reporting has a negative insignificant impact on corporate performance (β = of - 0.005, P < 0.01). The study concluded that disclosing the six components (financial and non-financial) of integrated reporting improve performance of listed industrial goods companies in Nigeria. Consequently, this study recommended that industrial goods’ firms should consistently disclose all sources of funds and intensify initiatives to create social cohesion in order to encourage greater stakeholders’ acceptance.
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    Tubal factor infertility: Hysterosalpingography and Laparoscopic evaluation in Ilorin, Nigeria
    (College of Health Sciences, Delta state University, Abraka, Nigeria, 2017) Omokanye, Lukman O.; Olatinwo, Abdulwaheed O.; Ibrahim, S.; Saadu, L.; Durowade, K A.; Panti, Abubakar A.
    Objectives: To compare diagnostic accuracy of laparoscopy and HSG in the evaluation of tubal patency among infertile women. Materials and Methods: A cross-sectional prospective study of infertile women who underwent HSG st st and laparoscopy for tubal patency between 1 January 2011 and 31 December 2015. Results: Ninety-seven (97) eligible patients were included in the study. The patients were aged 21-50 years with a mean age of 33 ± 6.6 years. Majority (79.4%) were nulliparous. Most (63.9%) belong to middle social class. Fifty (51.5%) had primary infertility while (48.5%) had secondary infertility. Their duration of infertility ranges from 1-33 years (5.6 ± 5.5). HSG revealed bilateral tubal blockade in 23 (23.7%), bilateral patent tubes in 38 (39.2%) and unilateral patent tube in 36 (37.1%) while laparoscopy showed bilateral tubal blockade in 18 (18.6%), bilateral patent tubes in 51 (52.6%) and unilateral patent tube in 28 (28.8%) respectively. There was significant difference between HSG and laparoscopic findings on tubal status determination (p <0.05). Laparoscopy revealed other tubal and non-tubal pelvic findings not evident on HSG. The sensitivity of HSG was 100%, specificity was 93.7%, and the positive predictive value was 78.3%, with a negative predictive value of 100%. Conclusion: HSG and laparoscopy are of diagnostic importance in the evaluation of tubal status; however, laparoscopy is superior most especially in the detection of other tubal and non tubal pathologies which could be responsible for infertility; thus both tests are complimentary. Tubal Factor Infertility: Hysterosalpingography and Laparoscopic Evaluation in Ilorin, Nigeria.