Gbenga Olorunfemi

Dr. Gbenga Olorunfemi

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Research Focus & Metrics

Academic Career Length

9Years (2018-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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7 August 2018 in International Journal of Cancer
Verified
Journal Article
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GOGbenga Olorunfemi
Gbenga Olorunfemi
NNNtombizodwa Ndlovu
Ntombizodwa Ndlovu
GMGwinyai Masukume
Gwinyai Masukume
ACAdmire Chikandiwa
Admire Chikandiwa
PPPedro T. Pisa
Pedro T. Pisa
ESElvira Singh
Elvira Singh

8 September 2022 in Trials
Verified
Journal Article
Open access
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BABosede B. Afolabi
Bosede B. Afolabi
OBOchuwa A. Babah
Ochuwa A. Babah
OAOpeyemi R. Akinajo
Opeyemi R. Akinajo
VAVictoria O. Adaramoye
Victoria O. Adaramoye
TATitilope A. Adeyemo
Titilope A. Adeyemo
NSNadia Sam-Agudu
Nadia Sam-Agudu
Background: Anaemia in pregnancy is highly prevalent in African countries. High-dose oral iron is the current recommended treatment for pregnancy-related iron deficiency anaemia (IDA) in Nigeria and other African countries. This oral regimen is often poorly tolerated and has several side effects. Parenteral iron preparations are now available for the treatment of IDA in pregnancy but not widely used in Africa. The IVON trial is investigating the comparative effectiveness and safety of intravenous ferric carboxymaltose versus oral ferrous sulphate standard-of-care for pregnancy-related IDA in Nigeria. We will also measure the implementation outcomes of acceptability, feasibility, fidelity, and cost-effectiveness for intravenous ferric carboxymaltose. Methods: This is an open-label randomised controlled trial with a hybrid type 1 effectiveness-implementation design, conducted at 10 health facilities in Kano (Northern) and Lagos (Southern) states in Nigeria. A total of 1056 pregnant women at 20–32 weeks’ gestational age with moderate or severe anaemia (Hb < 10g/dl) will be randomised 1:1 into two groups. The interventional treatment is one 1000-mg dose of intravenous ferric carboxymaltose at enrolment; the control treatment is thrice daily oral ferrous sulphate (195 mg elemental iron daily), from enrolment till 6 weeks postpartum. Primary outcome measures are (1) the prevalence of maternal anaemia at 36 weeks and (2) infant preterm birth (<37 weeks’ gestation) and will be analysed by intention-to-treat. Maternal full blood count and iron panel will be assayed at 4 weeks post-enrolment, 36 weeks’ gestation, delivery, and 6 weeks postpartum. Implementation outcomes of acceptability, feasibility, fidelity, and cost will be assessed with structured questionnaires, key informant interviews, and focus group discussions. Discussion: The IVON trial could provide both effectiveness and implementation evidence to guide policy for integration and uptake of intravenous iron for treating anaemia in pregnancy in Nigeria and similar resource-limited, high-burden settings. If found effective, further studies exploring different intravenous iron doses are planned. Trial registration: ISRCTN registry ISRCTN63484804. Registered on 10 December 2020 Clinicaltrials.gov NCT04976179. Registered on 26 July 2021 The current protocol version is version 2.1 (080/080/2021).

26 April 2021 in PLOS ONE
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Journal Article
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BEBeatrice Nkolika Ezenwa
Beatrice Nkolika Ezenwa
GOGbenga Olorunfemi
Gbenga Olorunfemi
IFIretiola Fajolu
Iretiola Fajolu
TAToyin Adeniyi
Toyin Adeniyi
KOKhadijah Oleolo-Ayodeji
Khadijah Oleolo-Ayodeji
CEChinyere Ezeaka
Chinyere Ezeaka
Background: Globally, approximately 9 million neonates develop perinatal asphyxia annually of which about 1.2 million die. Majority of the morbidity and mortality occur in Low and middle-income countries. However, little is known about the current trend in incidence, and the factors affecting mortality from hypoxic ischaemic encephalopathy (HIE), in Nigeria.Objective: We assessed the trends in incidence and fatality rates and evaluated the predictors of mortality among babies admitted with HIE over five years at the Lagos University Teaching Hospital.Methods: A temporal trend analysis and retrospective cohort study of HIE affected babies admitted to the neonatal unit of a Nigerian Teaching Hospital was conducted. The socio-demographic and clinical characteristics of the babies and their mothers were extracted from the neonatal unit records. Kaplan-Meir plots and Multivariable Cox proportional hazard ratio was used to evaluate the survival experienced using Stata version 16 (StataCorp USA) statistical software.Results: The median age of the newborns at admission was 26.5 (10–53.5) hours and the male to female ratio was 2.1:1. About one-fifth (20.8%) and nearly half (47.8%) were admitted within 6 hours and 24 hours of life respectively, while majority (84%) of the infants were out-born. The prevalence and fatality rate of HIE in our study was 7.1% and 25.3% respectively. The annual incidence of HIE among the hospital admissions declined by 1.4% per annum while the annual fatality rate increased by 10.3% per annum from 2015 to 2019. About 15.7% died within 24 hours of admission. The hazard of death was related to the severity of HIE (p = 0.001), antenatal booking status of the mother (p = 0.01) and place of delivery (p = 0.03).Conclusion: The case fatality rate of HIE is high and increasing at our centre and mainly driven by the pattern of admission of HIE cases among outborn babies. Thus, community level interventions including skilled birth attendants at delivery, newborn resuscitation trainings for healthcare personnel and capacity building for specialized care should be intensified to reduce the burden of HIE.

1 February 2019 in International Journal of Nephrology and Renovascular Disease
Verified
Journal Article
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ANAishatu Mohammed Nalado
Aishatu Mohammed Nalado
JMJohnny Ndoni Mahlangu
Johnny Ndoni Mahlangu
BWBala Waziri
Bala Waziri
RDRaquel Alice Bottger Duarte
Raquel Alice Bottger Duarte
GPGraham Paget
Graham Paget
SNSaraladevi Naicker
Saraladevi Naicker
Introduction: Anemia is a complication of chronic kidney disease (CKD) that can greatly impact on its prognosis. However, the risk factors for anemia, including the influence of ethnicity, are not well established among the CKD population in Johannesburg. Methods: This was a cross-sectional study of 353 adult CKD patients attending the renal outpatient clinic of the Charlotte Maxeke Johannesburg Academic Hospital (Johannesburg, South Africa) from June 1, 2016 to December 30, 2016. Sociodemographic and clinical characteristics were obtained using a proforma. Blood samples were collected for serum electrolytes and hematological parameters. Predictors of low hemoglobin and iron deficiency anemia (IDA) were evaluated using multivariable binary logistic regression. Results: The mean age and prevalence of anemia among the CKD participants were 55.3±15.0 years and 43.18% (95% CI: 38.1%–48.4%), respectively. Blacks had the highest prevalence of anemia (46.9%), while Indians/Asians had the lowest (18.2%). Although the odds of anemia was 3.8-fold higher (odds ratio =3.8, P-value =0.059) among CKD stage V participants as compared to CKD stage I, the relationship between anemia and stages of CKD was non-linear. Diabetes mellitus (odds ratio =2.31, P-value =0.005) had a strong association with anemia among the CKD participants. Conclusion: Almost half of the CKD participants were anemic, and the odds of anemia did not increase linearly with increasing severity of CKD. There was a marked ethnic disparity in anemia prevalence. Our study highlights the need for risk-based management of anemia among CKD patients.

25 April 2022 in BMC Pregnancy and Childbirth
Verified
Journal Article
Open access
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JOJoseph A. Olamijulo
Joseph A. Olamijulo
GOGbenga Olorunfemi
Gbenga Olorunfemi
HOHalimat Okunola
Halimat Okunola
Background: Nigeria has one of the worst global maternal mortality ratios (MMR). Institutional audit is invaluable in providing useful information for formulating preventive interventions.Objective: To evaluate the trends, causes and socio-demographic characteristics of maternal mortality at a tertiary institution in South-western Nigeria over a period of 13 years (2007–2019).Methodology: Cross sectional and temporal trend analysis of maternal deaths were conducted using chart reviews from 2007 to 2019. Socio-biological characteristics, booking status and ranking of clinical causes of maternal deaths were derived from patients’ chart review (2007–2019). Bivariate analysis and Annual percent change (APC) of the observed trends was respectively conducted using Stata version 17 and Joinpoint version 4.5.0.1 software respectively.Results: In the period 2007–2019, the mean age at maternal death was 30.8 ± 5.9 years and 88.8% of mortalities occurred among the “unbooked” women. The leading causes of direct maternal mortality were Hypertension (27.0%), Sepsis (20.6%) and haemorrhage (18.7%), while anaemia in pregnancy (3.2%), Human Immunodeficiency Virus (3.2%) and Sickle Cell Disease (2.4%) were the leading indirect causes of maternal mortality Joinpoint estimates showed a statistically significant increase in MMR of about 3.4% per annum from 2211 per 100,000 live births in 2007 to 3555.6 per 100,000 live births in 2019 (APC: +3.4%,P-value < 0.001).Conclusion: Contrary to some other reports, there was an increase in the institutional MMR between 2007 and 2019 even though the leading causes of death remained similar. Targeted interventions based on accurate data are urgently required in order to achieve the Sustainable Development Goal (SDG) 3.1.

20 August 2019 in African Health Sciences
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CECallistus Oa Enyuma
Callistus Oa Enyuma
MAMaxwell U Anah
Maxwell U Anah
APAmelia Pousson
Amelia Pousson
GOGbenga Olorunfemi
Gbenga Olorunfemi
ILIbisomi L
Ibisomi L
IJImoke E J
Imoke E J
Patterns of paediatric emergency admissions and predictors of prolonged hospital stay at the children emergency room, University of Calabar Teaching Hospital, Calabar, Nigeria