Angela Ogechukwu Ugwu

@unn.edu.ng

Associate Professor/Consultant Haematologist/ Haematology & Immunology Department/Faculty of Medical Sciences
College of Medicine, University of Nigeria Ituku/Ozalla



                       

https://researchid.co/angelao.ugwu

Dr. Angela Ogechukwu Ugwu is a native of Ibagwa-Ani in Nsukka LGA of Enugu State. She obtained her MBBS degree from Nnamdi Azikiwe University, Awka in 2006 and later FMCPath in 2014 from the National Postgraduate Medical College of Nigeria. She also obtained her Doctor of medicine (MD) in 2023 from same College.
Dr. Angela Ugwu has initiated and completed several research works in areas of sickle cell anaemia, transfusion medicine, hemato-oncology, coagulation disorders and Cochrane systematic reviews. Consequently, she has published 54 papers in peer review journals (locally and internationally), with 31 of these papers published in journals with Thompson Reuters and SCimago Impact Factors/Ratings. She was the Principal investigator in one of the grants she attracted to the College.

EDUCATION

MBBS
MD
FMCPath

RESEARCH INTERESTS

Transfusion Medicine
Haemaoglobinopathies
Haemostasis
Haemo oncology

27

Scopus Publications

815

Scholar Citations

15

Scholar h-index

19

Scholar i10-index

Scopus Publications

  • Impact of Binet Staging versus Tumour Bulk on Treatment Outcome in Chronic Lymphocytic Leukaemia
    Anazoeze Jude Madu, Helen Chioma Okoye, Ebele Adaobi Muoghalu, Angela Ogechukwu Ugwu, Augustine Nwakuche Duru, Charles Emeka Nonyelu, Ikechukwu Okwudili Anigbogu, and Chinedu Anthony Ezekekwu

    Medknow
    Abstract Background: Most of the predictive tools put up to prognosticate treatment outcomes in patients with chronic lymphocytic leukaemia (CLL) are not easily available and affordable in our resource-constrained environment. Aim: The aim of this study was to evaluate the impact of staging and some tumour bulk on treatment outcomes of persons with CLL, Enugu, Nigeria. Patients and Methods: This is a 10-year review of the CLL data from the haemato-oncology unit of a Nigerian tertiary hospital to evaluate the impact of staging and tumour bulk indicators. Data were retrieved from the case notes of 102 patients with CLL receiving care at the facility. Data of interest include basic demographic variables, clinical features including spleen size and disease staging and blood counts. Statistical analysis was done using SPSS version 22. Results: The median absolute lymphocyte count (ALC) was 108.05 (confidence interval [CI] = 50.8–201.3, interquartile range [IQR] = 124.4) ×109/L, and duration of survival for the study cohort was 5.5 (CI = 3.5–31.9, IQR = 27) months. Majority (69, 79.3%) were in Stage C. The Binet stage showed a significant association with the ALC (r = 0.338; P = 0.002) but not with spleen size (r = 0.198; P = 0.056). The duration of survival only showed a significant inverse relationship with the ALC (r = 0.35, P = 0.006) but with neither the Binet stage (r = 0.103, P = 0.431) nor spleen size (r = 0.184, P = 0.116). Conclusion: In CLL patients, ALC at presentation correlates with the duration of survival. We recommend that the ALC at presentation be used as a prognostic marker in our clime.

  • Antivirals for prevention of hepatitis B virus mother-to-child transmission in human immunodeficiency virus positive pregnant women co-infected with hepatitis B virus
    Emmanuel O Ugwu, George U Eleje, Angela O Ugwu, Uchenna I Nwagha, Joseph I Ikechebelu, Uchenna A Umeh, and Henrietta U Okafor

    Wiley

  • Cerebral artery conditional blood velocity in sickle cell disease: A multicentre study and evidence for active treatment
    Emmanuel Modebe, Charles Nonyelu, Augustine Duru, Osita Ezenwosu, Barth Chukwu, Anazoeze Madu, Chinedu Ezekekwu, John Aneke, Mildred Izuka, Chisom Nri-Ezedi,et al.

    BMJ
    ObjectiveTo obtain multicentre data on the prevalence of normal, high or conditional (intermediate) blood velocity in the cerebral arteries among children with sickle cell disease (SCD) in Nigeria.DesignA prospective observational study in five tertiary healthcare institutions. By transcranial Doppler (TCD) ultrasonography, cerebral artery peak systolic blood velocity (PSV) was determined in 193 children with SCD and time averaged mean of the maximum blood velocity (TAMMV) in a different cohort of 115 children. This design was to make the findings relevant to hospitals with TCD equipment that measure either PSV or TAMMV.SettingNigeria.Participants308 children (126 girls, 182 boys; age 2–16 years).Main outcome measuresPercentage of children with SCD who have normal, high or intermediate (often termed conditional) PSV or TAMMV.ResultsIn the cohort of 193 children, PSV was normal in 150 (77.7%), high in 7 (3.6%) and conditional in 36 (18.7%). In the cohort of 115 children, TAMMV was normal in 96 (84%), high in 7 (6%) and conditional in 12 (10%). There were no significant differences in gender or age distribution between the PSV and TAMMV cohorts. Altogether, cerebral artery blood velocity was normal in 246/308 children (80%), high in 14 (4.5%) and conditional in 48 (15.5%).ConclusionSince conditional blood velocity in cerebral arteries can progress to high values and predispose to stroke, the proportion of children with SCD who are affected (15.5%) raises the question of whether regular monitoring and proactive intervention ought to be the standard of care.

  • Efficacy and safety of Mojeaga remedy in combination with conventional oral iron therapy for correcting anemia in obstetric population: A phase II randomized pilot clinical trial
    George Uchenna Eleje, Ifeanyichukwu Uzoma Ezebialu, Joseph Tochukwu Enebe, Nnanyelugo Chima Ezeora, Emmanuel Onyebuchi Ugwu, Iffiyeosuo Dennis Ake, Ekeuda Uchenna Nwankwo, Perpetua Kelechi Enyinna, Chukwuemeka Chukwubuikem Okoro, Chika Prince Asuoha,et al.

    Public Library of Science (PLoS)
    Background To our knowledge, there is no prior randomized trial on the efficacy of Mojeaga remedy (a special blend of Alchornea cordifolia, Pennisetum glaucum and Sorghum bicolor extracts) when co-administered with standard-of-care for correction of anemia in obstetrics practice. This study determined the efficacy, safety and tolerability of Mojeaga as adjunct to conventional oral iron therapy for correction of anemia in obstetric population. Methods A pilot open-label randomized clinical trial. Participants with confirmed diagnosis of anemia in three tertiary hospitals in Nigeria were studied. Eligible participants were randomized 1:1 to either Mojeaga syrups 50 mls (200mg/50mls) administered three times daily in conjunction with conventional iron therapy (Mojeaga group) for 2 weeks or conventional iron therapy alone without Mojeaga (standard-of-care group) for 2 weeks. Repeat hematocrit level were done 2 weeks post-initial therapy. Primary outcome measures were changes in hematocrit level and median hematocrit level at two weeks post therapy. Maternal adverse events and neonatal outcomes (birth anomalies, low birthweight, preterm rupture of membranes and preterm labor) were considered the safety outcome measures. Analysis was by intention-to-treat. Results Ninety five participants were enrolled and randomly assigned to the Mojeaga group (n = 48) or standard-of-care group (n = 47). The baseline socio-demographic and clinical characteristics of the study participants were similar. At two weeks follow-up the median rise in hematocrit values from baseline (10.00±7.00% vs 6.00±4.00%;p<0.001) and median hematocrit values (31.00±2.00% vs 27.00±3.00%;p<0.001) were significantly higher in the Mojeaga group. There were no treatment-related serious adverse events, congenital anomalies or deaths in the Mojeaga group and incidence of other neonatal outcomes were similar (p>0.05). Conclusion Mojeaga represents a new adjuvants for standard-of-care option for patients with anemia. Mojeaga remedy is safe for treating anemia during pregnancy and puerperium without increasing the incidence of congenital anomalies, or adverse neonatal outcomes. Clinical trial registration www.pactr.samrc.ac.za: PACTR201901852059636 (https://pactr.samrc.ac.za/TrialDisplay.aspx?TrialID=5822).

  • Antichlamydia antibodies and sperm quality among male partners of infertile couples ins Nigeria
    PC Udealor, AO Olibe, EO Ugwu, CA Iyoke, AO Ugwu, GU Eleje, UA Umeh, EI Iloghalu, PU Agu, KC Obioha,et al.

    Medknow
    Background The impact of Chlamydia trachomatis on semen quality has been studied with varied results. Aim To determine the prevalence of antichlamydial antibodies and their relationship with sperm quality among male partners of infertile couples in Enugu, South-East Nigeria. Materials and Methods It was a cross-sectional study of infertile male partners of couples attending infertility clinics at the University of Nigeria Teaching Hospital (UNTH) Ituku-Ozalla, Enugu, Nigeria. Their sera were assayed for antichlamydial antibodies, and semen analysis and culture were done for each participant. Results Two hundred and eighty-two (282) male partners of infertile couples were studied. Infertility was commoner among participants aged 40 years or more (45.1%) and was mainly of the "primary type" (62.1%). Antichlamydia antibody was detected in 156 (55.3%) participants and was significantly associated with sperm quality (P = 002; OR = 2.294; 95% CI = 1.36-3.88). Overall, 81 (28.7%) had abnormal sperm quality. The sperm count, progressive motility, and vitality were significantly lower in participants with abnormal sperm quality than those with normal sperm quality (P < 0.001) while morphology, volume, and liquefaction time did not differ significantly (P > 0.05). Staphylococcus aureus was the predominant organism isolated from culture (122/282, 43.3%) while Streptococcus species were the least (4/262, 1.4%). There was significantly more Staphylococcus aureus isolated from the semen of participants that were seropositive to antichlamydial antibodies than those that were seronegative (80/156, 51.3% vs. 42/126, 33.3%; OR = 2.105; 95% CI = 1.30-3.42; P = 0.003). Conclusion The prevalence of antichlamydial antibodies among male partners of infertile couples in Enugu, Nigeria is high and there is a significant association with sperm quality, sperm count, and bacterial isolates in seminal culture. Male partners of infertile couples in Enugu should be screened for antichlamydial antibodies and appropriate treatment offered wherever indicated. There is a need for increased public awareness and advocacy campaigns on the impact of Chlamydia infection on male factor infertility. This primary preventive measure may help in reducing the burden of Chlamydia infection and male factor infertility.

  • A Systematic Review and Meta-Analysis of the Prevalence of Triplex Infections (Combined Human Immunodeficiency Virus, Hepatitis B Virus, and Hepatitis C Virus) among Pregnant Women in Nigeria
    George Uchenna Eleje, Olabisi Morebise Loto, Hadiza Abdullahi Usman, Chinyere Ukamaka Onubogu, Preye Owen Fiebai, Godwin Otuodichinma Akaba, Ayyuba Rabiu, Ikechukwu Innocent Mbachu, Moriam Taiwo Chibuzor, Rebecca Chinyelu Chukwuanukwu,et al.

    Hindawi Limited
    Objective. We systematically identified the prevalence of triplex infections (combined human immunodeficiency virus (HIV), hepatitis B virus (HBV), and hepatitis C virus (HCV)) in pregnancy. Methods. To gather information on the frequency of triplex infections, we searched the databases of PubMed, CINAHL, and Google Scholar. Without regard to language, we utilized search terms that covered HIV, HBV, HCV, and pregnancy. Pregnant women with triplex infections of HIV, HBV, and HCV were included in studies that also examined the prevalence of triplex infections. Review Manager 5.4.1 was employed to conduct the meta-analysis. Critical appraisal and bias tool risk data were provided as percentages with 95% confidence intervals (95% CIs), and I2 was used as the statistical measure of heterogeneity. The checklist was created by Hoy and colleagues. The study protocol was registered on PROSPERO, under the registration number CRD42020202583. Results. Eight studies involving 5314 women were included. We identified one ongoing study. Pooled prevalence of triplex infections was 0.03% (95% CI: 0.02–0.04%) according to meta-analysis. Subgroup analysis demonstrated a significantly high prevalence of 0.08% (95% CI: 0.06–0.10%; 3863 women) in HIV-positive population than 0.00% (95% CI:−0.00-0.00; 1451 women; P &lt; 0.001 ) in general obstetric population. Moreover, there was a significant difference in the pooled prevalence between studies published between 2001 and 2010 and between 2011 and 2021 (0.14% (95% CI: 0.12 to 0.16 versus 0.03% (95% CI: 0.02 to 0.04%; P &lt; 0.001 ))) and participants recruited in the period between 2001 and 2011 and between 2012 and 2021 (0.13% (95% CI: 0.05 to 0.21; p = 0.002 versus 0.00% (95% CI: −0.00 to 0.00%; p = 1.00 ))), respectively. Conclusion. The combined prevalence of prenatal triplex infections was 0.03%, with rates notably higher among the group of pregnant women who were HIV-positive and during the recruitment period that took place before 2012. This prevalence still necessitates screening for these infections as necessary.

  • Iron supplementation and blood donation in Nigeria: Effect on Hemoglobin, red cell indices, and iron stores - The ranferon™ study
    T. Nwagha, A. Ugwu and Chinenye Nkemakolam Nwaekpe


    Background Iron-deficiency anemia is an important limiting factor to a sustainable supply of blood units, especially in low- and middle-income countries. Blood transfusion practice in Nigeria is poorly developed and structured with paucity of voluntary nonremunerated blood donors and high rate of donor deferrals resulting from low hemoglobin (Hb) levels. Aims This study aimed to assess the effect of daily supplementation of iron using Ranferon-12 on Hb level, red blood cell (RBC) indices, iron level, ferritin level, and Hb recovery in blood donors in Nigeria. Methodology This longitudinal study was conducted at a tertiary hospital blood transfusion center from March to July 2020. Blood samples of regular donors were collected at three points in the study for the measurement of Hb and hematocrit (HCT); RBC indices including mean cell volume (MCV), mean cell hemoglobin (MCH), and Mean cell haemoglobin concentration (MCHC); and iron stores including serum iron, serum ferritin, and serum transferrin. The first point was at recruitment before donation of one unit of blood; the second point after the blood donation; and the third point at 6 weeks post blood donation. Following donation, participants were placed on Ranferon capsules (iron fumarate - 100 mg elemental iron) and 100 mg of tablet Vitamin C, for 6 weeks. Results There was a moderate significant positive correlation between administration of Ranferon and change in the values of HCT, MCV, MCH, red cell distribution width, ferritin, and transferring (P < 0.05). Percentage recovery of Hb, red cell indices, and iron stores parameters after 6 weeks of daily Ranferon ranged between 89% and 100%. Conclusion Iron supplementation using Ranferon capsule daily for 6 weeks enhances recovery of Hb, red cell indices, and iron stores with attainment of benchmark Hb levels for donation.

  • Cesarean section rate and outcomes during and before the first wave of COVID-19 pandemic
    George Uchenna Eleje, Emmanuel Onyebuchi Ugwu, Joseph Tochukwu Enebe, Chukwuemeka Chukwubuikem Okoro, Boniface Chukwuneme Okpala, Nnanyelugo Chima Ezeora, Emeka Ifeanyi Iloghalu, Chidebe Christian Anikwe, Chigozie Geoffrey Okafor, Polycarp Uchenna Agu,et al.

    SAGE Publications
    Objectives: The objective of the study was to assess how the current COVID-19 pandemic has affected cesarean section (C-section) rates, indications, and peripartum outcomes. Methods: This was a retrospective cross-sectional study that compared a 3-month rates of and indications for C-sections at three tertiary health care institutions in Nigeria before (October 2019–December 2019) and during the first wave of COVID-19 pandemic (March 2020–May 2020). Primary outcomes were C-section rate and indications between the two periods. Data were analyzed using SPSS 26.0 IBM Corporation. Rates and odds ratios with 95% confidence intervals were used to quantify indications and peripartum outcomes and statistical significance was accepted when p value was &lt;0.05. Results: The baseline characteristics of the two groups were similar. The C-section rate during the COVID-19 period was significantly less than the period prior to the pandemic (237/580, 40.0% vs 390/833, 46.8%; p = 0.027). The rates of postdatism (odds ratio = 1.47, 95% confidence interval = 1.05–2.05, p = 0.022), fetal distress (odds ratio = 3.06, 95% confidence interval = 1.55–6.06, p = 0.017), emergency C-section (odds ratio = 1.43, 95% confidence interval = 1.01–2.05, p = 0.042), and anemia (odds ratio = 1.84, 95% confidence interval = 1.12–3.03, p = 0.016) were significantly higher during the pandemic than prepandemic. Conclusion: The overall C-section rate during the first wave of COVID-19 was significantly lower than the prepandemic period. There were higher rates of postdatism, fetal distress, emergency C-section, and postpartum anemia. Further studies on this changing C-section trend during the pandemic are needed.

  • Does Sickle Cell Disease Protect against HIV Infection: A Systematic Review
    Theresa Ukamaka Nwagha, Angela Ogechukwu Ugwu, and Martins Nweke

    S. Karger AG
    &lt;b&gt;&lt;i&gt;Objective:&lt;/i&gt;&lt;/b&gt; The aim of this systematic review was to investigate whether sickle cell disease (SCD) protects against human immunodeficiency virus (HIV) infection by determining the association between SCD and the incidence and virulence of HIV infection. &lt;b&gt;&lt;i&gt;Methods:&lt;/i&gt;&lt;/b&gt; This is a systematic review that used MEDLINE, PubMed, CINAHL, and Academic Search Complete as data sources. Articles describing the relationship of SCD with HIV infection were included in this review. The effect measures were converted to correlation coefficients and synthesized accordingly to examine the putative protective role of SCD against HIV infection. Independent full-text screening and data extraction were conducted on all eligible studies. The risk of bias was assessed using the mixed methods appraisal tool. We employed a random-effects model of meta-analysis to estimate the pooled prevalence. We computed Cochrane’s Q statistics, &lt;i&gt;I&lt;/i&gt;&lt;sup&gt;2&lt;/sup&gt;, and prediction interval to quantify effect size heterogeneity. &lt;b&gt;&lt;i&gt;Results:&lt;/i&gt;&lt;/b&gt; SCD reduces the risk of HIV infection by 75% (odds ratio [OR] = 0.25; &lt;i&gt;r&lt;/i&gt; = −0.36, &lt;i&gt;p&lt;/i&gt; &amp;#x3c; 0.001; &lt;i&gt;I&lt;/i&gt;&lt;sup&gt;2&lt;/sup&gt; = 71.65). There was no publication bias (Egger’s &lt;i&gt;t&lt;/i&gt; value = 0.411; &lt;i&gt;p&lt;/i&gt; = 0.721). Similarly, risk of HIV virulence was reduced by 77% (OR = 0.23; &lt;i&gt;r&lt;/i&gt; = −0.38; &lt;i&gt;p&lt;/i&gt; &amp;#x3c; 0.001; &lt;i&gt;I&lt;/i&gt;&lt;sup&gt;2&lt;/sup&gt; = 63.07). The mechanisms implicated in the protective influence of SCD include autosplenectomy, reduced CCR5 expression, and increased expression of heme and iron-regulated genes. &lt;b&gt;&lt;i&gt;Conclusions:&lt;/i&gt;&lt;/b&gt; SCD appears to protect against HIV infection and slows HIV progression.

  • Diagnosis and treatment of bbstetrics disseminated intravascular coagulation in resource limited settings
    Helen C Okoye, Theresa U Nwagha, Angela O Ugwu, Ifeanyi E Menuba, Augustine N Duru, Emmanuel O Ugwu, Feanyichukwu U Ezebialu, Stephen C Eze, and Aloysuis O Ugwu

    African Journals Online (AJOL)
    Background: Disseminated intravascular coagulation (DIC) is one of the commonest causes of abnormal bleeding during pregnancy and puerperium. Its successful management is a challenging feat in resource limited settings (RLS).&#x0D; Aim: To determine Obstetricians’ approach in diagnosing and treating obstetrics DIC in a RLS&#x0D; Method: A semi-structured pre-tested 4-sectioned questionnaire was used to collect demographic data of Nigerian obstetricians and data on their practice in the diagnosis and treatment of obstetrics DIC.&#x0D; Results: A total of 171 obstetricians responded. Preeclampsia was the most frequent cause identified (70.2%) followed by postpartum haemorrahge (58.3%). Platelet count determination was the test mostly used (95.9%) to make a diagnosis of DIC whereas, antithrombin assay was the least (20.6%) requested investigation. While about two-third would monitor the evolution of DIC, a little less than half of the obstetricians would not repeat laboratory testing more than every 2 days, reason mainly (61.8%) due to patient’s financial constraint. Almost three-quarter of them preferred fresh whole blood as the first line of treatment of DIC.&#x0D; Conclusion: DIC remains a challenge in the obstetrics practice in RLS especially in investigations, monitoring and index of suspicion for non-overt DIC.&#x0D; Keywords: Investigations; DIC; Obstetrician; diagnosis; treatment.

  • Phenotypic characterisation and associations of leg ulcers in adult sickle cell patients
    Anazoeze Madu, Kenechi Madu, Ikechukwu Anigbogu, Angela Ogechukwu Ugwu, Vincent A. Okwulehie, Uchenna Ololo, Chioma Ugwu, and Kelechi Chikezie

    Wiley
    Sickle leg ulcer (SLU) occurs as a result chronic occlusion of the vasculature with consequent necrosis of the skin and subcutaneous tissue usually in proximity of the malleoli. The description of clinical associations and the simultaneous occurrence of SLU and other complications of SCD compared to the non-SLU patients was the aim of this work. A total of 272 (60.8% males and 39.2% females) patients were captured during this time period out of which 68 (51 males and 17 females) had SLU out of whom 20 patients had bilateral leg ulcers. Prevalence of SLU was 25% and the median age of patients was 25 years, frequency of crisis 2 per annum and 44 (74.6%) had been transfused in the past. Median Hb of the group was 7.6 g/dl and 25% had values lower than 6.5. The occurrence of other complications in SLU patients was as follows; 10 had AVN, 9 priapism, 8 had osteomyelitis, 6 nephropathy, stroke 2, osteoarthritis 4 and cholelithiasis 4. There was a significant relationship between the occurrence of SLU and gender of the patient being more in 67males-Likelihood ratio 4.610 (p = 0.032) and the occurrence of pulmonary hypertension-Likelihood ratio 4.762 (p = 0.029). There was no significant association between the occurrence of SLU and other complications of SCD. Leg ulcer patients have a median age of 25 years with a prevalence of 25% but do not necessarily show other features of severe disease phenotypes. SLU patients were more likely to develop pulmonary hypertension. Further studies on impact of environmental factors on the occurrence of SLU are needed to further evaluate its aetiology.

  • Pilot assessment of omega-3 fatty acids and potassium thiocyanate in sickle cell anemia patients with conditional peak systolic cerebral artery blood velocity
    Angela Ugwu, Nneka Iloanusi, Ngozi Ugwu, Barth Chukwu, Osita Ezenwosu, Emmanuel Modebe, Augustine Duru, Anazoeze Madu, Ezinne Chibueze, Michael Igboke,et al.

    Elsevier BV
    OBJECTIVE The purpose of this pilot study was to explore the effect of omega-3 fatty acids and potassium thiocyanate on conditional peak systolic cerebral artery blood velocity in children with sickle cell anemia (SCA). METHODS Transcranial doppler ultrasonography (TCD) was done on 232 SCA children, and 21 found with conditional peak systolic blood velocity (PSV) of 200-249 cm/s in internal carotid, middle or anterior cerebral arteries. These were randomized to receive omega-3 fatty acids and potassium thiocyanate with standard treatment of SCA (test group, N = 14), or standard treatment only (control group, N = 7). After 3 months of treatment, PSV was measured again. RESULTS Right middle cerebral artery PSV was significantly reduced in the test relative to the control groups (p = 0.04). PSV returned to normal in 79% of the test versus 43% of the control group; and increased to abnormal in one member of the control group, but none of the test group. CONCLUSIONS The pilot data suggest that in SCA, omega-3 fatty acids and potassium thiocyanate might reduce conditional blood velocity to normal, or prevent progression to abnormal values. A larger, randomized, clinical trial is required to further address the current gap in management of conditional TCD blood velocity.

  • Hyperhaemolytic syndrome in sickle cell disease: Clearing the cobwebs
    Anazoeze Jude Madu, Angela Ogechukwu Ugwu, and Chilota Efobi

    S. Karger AG
    Sickle cell disease (SCD) presents with a dynamic background of haemolysis and deepening anaemia. This increases the demand for transfusion if any additional strain on haemopoiesis is encountered due to any other physiological or pathological causes. Patients with cerebrovascular accidents are placed on chronic blood transfusion; those with acute sequestration and acute chest syndrome are likewise managed with blood transfusion. These patients are prone to develop complications of blood transfusion including alloimmunization and hyperhaemolytic syndrome (HHS). This term is used to describe haemolysis of both transfused and “own” red cells occurring during or post-transfusion in sickle cell patients. Hyperhaemolysis results in worsening post-transfusion haemoglobin due attendant haemolysis of both transfused and autologous red cells. The mechanism underlying this rare and usually fatal complication of SCD has been thought to be secondary to changes in the red cell membrane with associated immunological reactions against exposed cell membrane phospholipids. The predisposition to HHS in sickle cell is also varied and the search for a prediction pattern or value has been evasive. This review discusses the pathogenesis, risk factors and treatment of HHS, elaborating on what is known of this rare condition.

  • Clinical screening for menorrhagia and other bleeding symptoms in Nigerian women
    T. Nwagha, H. Okoye, A. Ugwu and E. Ugwu


    Objective: The objective of the study was to evaluate the prevalence of perceived bleeding symptoms in Nigerian women and the usefulness of a simple clinical screening tool for bleeding symptoms. Materials and Methods: A population-based cross-sectional survey of 1524 women of 16–50 years in Southeast Nigeria using a structured, prevalidated, pretested questionnaire was conducted. Results: A total of 1524 (85%) women responded with the mean age of 26 (10.6) years. Prevalence of bleeding symptoms was 24.6% and 11% of the women reported a positive family history of bleeding symptoms. There was a significant association between having a positive family history of bleeding disorder and experiencing bleeding symptoms (adjusted odds ratio: 0.12, 95% confidence interval: 0.06–0.22 P < 0.0001). Two hundred and six women experienced at least one bleeding symptom, 125 (8.2%) experienced at least two, whereas 43 (2.8%) experienced >3 bleeding symptoms. The most common perceived bleeding symptom was heavy menstrual bleeding (HMB) present in 83 women (22.2%), 141 (9.3%) reported a past history of HMB, 202 (13.3%) had heavy bleeds during most of their monthly cycle, and 351 (23%) requiring resuscitation with blood support. Conclusion: The prevalence of perceived bleeding symptoms among women is high, and HMB is the most common bleeding symptom. This clinical screening tool is easy and cost-effective in routinely identifying women with bleeding symptoms needing further hemostatic and obstetrics evaluation.

  • Antivirals for prevention of hepatitis B virus mother-to-child transmission in human immunodeficiency virus positive pregnant women co-infected with hepatitis B virus
    Emmanuel O Ugwu, George U Eleje, Angela O Ugwu, Uchenna I Nwagha, Joseph I Ikechebelu, Uchenna A Umeh, and Henrietta U Okafor

    Wiley

  • ABO blood group as a biomarker of preeclampsia among antenatal clinic attendees in Nigeria
    H. Okoye, C. Efobi, A. Ugwu, E. Ugwu and T. Nwagha


    Background: The clinical application of the ABO blood group is not limited to transfusion medicine but extends to other aspects of medicine. Its impact on preeclampsia is controversial. Aim: To determine the association of ABO blood group type with preeclampsia. Subjects and Methods: This was a cross-sectional analytical study of 66 women with preeclampsia and 81 apparently healthy women controls carried out in a tertiary health institution. The case and control groups were consecutively recruited during antenatal clinic visits and matched for age, parity, and gestational age. Data on demographics and the ABO blood group of the two groups of individuals were obtained. The analysis was both descriptive and inferential using the statistical package for social sciences (SPSS) version 21 (Chicago Il, USA). A P value of <0.05 was considered statistically significant. Results: The mean age of the participants was 30.6 (4.9), 95% CI: 27.76–33.95. The majority of the women were ≤40 years (98.5%) and multigravidae constituted 81.8%. Forty-six (69.7%) women with preeclampsia had blood group O and 20 (30.3%) had a non-O blood group. Forty-nine (60.5%) of the controls had blood group O and 32 (39.5%) had a non-O blood group. The observed difference was not statistically significant (OR 1.50; 95% CI: 0.75–3.0; P = 0.26). The odds ratio for developing preeclampsia was 0.83 (95% CI: 0.37–1.91; P = 0.67) for the primigravidae. The non-O blood groups were more likely to present with symptoms than the O group (P < 0.01). Twenty-six (39.4%) women with preeclampsia had a mild disease while 40 (60.6%) had severe disease. Conclusion: Women with non-O blood groups are not at increased risk of developing preeclampsia but are more likely to be symptomatic than the O group.

  • Presenting features and treatment outcomes of chronic lymphocytic leukaemia in a resource poor Southern Nigeria
    Anazoeze Jude Madu

    African Journals Online (AJOL)
    Background Chronic lymphocytic leukaemia is a relatively common haematological malignancy affecting older adults, accounting for about 20% of haematological malignancies in Nigeria. Diagnosis of this disease depends on the demonstration of clonal lymphocytosis > 5 × 109/L with a characteristic immunophenotypic pattern amidst other clinical and laboratory features. Objectives To determine the predominant clinical and laboratory features of CLL at presentation and their relationship with patient survival. This study also aims at examining the relationship between treatment protocol and outcome. Methods This is a retrospective study with 8 years data (2010–2018) collected from four different centers. Data was analyzed using SPSS 20.0. Results There were a total of 97 cases, with a male: female ratio of 1.1:1. The median age at presentation was 59 years. Approximately 55% of the patients presented at Binet stage C, with splenomegaly in 93.2% and 78% were anaemic. The mean white cell count was 137.9 ± 14.7 × 109/L, with a median absolute lymphocyte count of 86 × 109/L. The commonest treatment regimen was chlorambucil and prednisolone and males had a superior response. The number of chemotherapy cycles, serum alkaline phosphatase and aspartate transaminase correlated positively with duration of survival. Mortality rate over the five year period was 14.3%. Conclusion CLL was found to present in younger patients when compared to previous studies with a median age of 57 years at diagnosis. Our study showed a slight female preponderance and better response to therapy in males. Majority of the patients presented in Binet stage C and were treated with chlorambucil-based drug combinations compared to more current treatment with Fludarabine-based combinations. A high serum alanine transaminase and alkaline phosphatase was found to positively correlate with survival amongst this patient population

  • Perception of problem based learning versus conventional teaching methods by clinical medical students in Nigeria
    Helen Chioma Okoye, Ijeoma Angela Meka, Angela Ogechukwu Ugwu, Isah Adagiri Yahaya, Ochuko Otokunefor, Olugbenga Olalekan Ojo, and Emmanuel Onyebuchi Ugwu

    Pan African Medical Journal
    Introduction Problem-based learning (PBL) method which was introduced about 50 years ago in Canada is beginning to gain acceptance over conventional teaching method (CTM) worldwide in medical education but still remains unpopular in Nigeria. This study aims to determine the perception of clinical medical students to the use of both learning methods in pathology courses. Methods A cross-sectional quantitative survey was conducted in four Nigerian universities drawn from four regions of the country. Data were collected using pretested semi-structured self-administered questionnaires. Results The study included 310 respondents, 182(58.7%) males and 128(41.3%) females. Of all the participants, 257(82.9%) had heard of PBL prior to the study and 260(83.9%) thought it suitable for teaching and learning Pathology. Majority of participants, 221(71.3%) preferred a combination of both PBL and CTM while 238(76.8%) thought PBL suitable for all medical students. Some identified factors capable of enhancing adaptation of PBL into medical curriculum include conducive quiet spaces for learning and availability of computers with internet facilities for students' use. Conclusion Participants demonstrated high level of awareness of PBL and thought it suitable for all medical students. Availability of computers and up-to-date libraries with internet and audio-visual facilities could enhance adaptation of PBL into medical curriculum in Nigeria.

  • Pattern of blood donation and characteristics of blood donors in Enugu, Southeast Nigeria
    A. Ugwu, A. Madu, C. Efobi and O. Ibegbulam


    Background: Despite increasing need for blood donation in medical practice, little is known about pattern of blood donation and characteristics of blood donors in some African populations like Nigeria. This information is necessary in designing strategies and policies for improving blood transfusion services in Africa. Aim: The aim of this study is to determine the pattern of blood donation and characteristics of blood donors in Enugu, Southeast, Nigeria. Materials and Methods: A cross-sectional study of 3377 blood donors at a tertiary hospital in Enugu, Nigeria from May 1, 2016 to April 30, 2017. Information sought included donors' sociodemographic characteristics; type of blood donor: Voluntary nonremunerated donor (VNRD), family replacement donor (FRD), or paid donor (PD); willingness to become VNRD in the future after counseling and education (at point of entry to blood bank) on its benefits to clinical practice; hemoglobin (Hb) level; and transfusion transmissible infections (TTIs). Results: Mean age of blood donors was 28.8 ± 8.5 years, majority were male (3011, 89.2%) and students (1289, 32.8%). FRDs were the highest in number (1998, 59.2%), followed by PDs (746, 22.1%) and finally VNRDs (633, 18.7%). Of the 3377 persons that came for blood donation, 2537 (75.1%) were found eligible to donate while 840 (24.9%) were deferred on account of low Hb (602/3377, 17.8%) or positive infectious screening test (238/3377, 7.0%). The odds of a male donor being a VNRD were about one and half times that of a female donor (582/3011 [19.3%] vs. 51/366 [13.9%]; odds ratio: 1.48; 95% confidence interval: 1.09–2.02; P = 0.01). After counseling of FRDs and PDs, majority (54.3%) were willing to become VNRDs in the future. Donors' age >30 years, being of male sex, having tertiary level of education, and being employed were strongly associated with willingness to become VNRDs in the future (P < 0.001). Conclusion: VNRD made up <20% of the total number of donors in Enugu, Nigeria. There is a need for improvement in public enlightenment on the need for VNRDs and employment opportunities of the populace to improve voluntary blood donation.

  • Clinical and laboratory predictors of frequency of painful crises among sickle cell anaemia patients in Nigeria
    Angela Ogechukwu Ugwu

    JCDR Research and Publications
    INTRODUCTION The severity of Sickle Cell Anaemia (SCA) in terms of frequency of painful Vaso-Occlusive Crises (VOC) may be affected by clinical and haematological parameters amongst others. Elucidation of these factors in a given disease prevalent environment is necessary for prompt and effective management of patients with frequent painful VOC. AIM This study aimed at determining the clinical and laboratory predictors of frequency of painful VOC among SCA patients in Enugu, Southeastern Nigeria. MATERIALS AND METHODS It was a cross-sectional study of 100 consecutive SCA patients receiving care at the University of Nigeria Teaching Hospital, Enugu, Nigeria between May 2012 and February 2014. The eligible patients were categorized into two groups namely; Group A and Group B. Group A/study group (severe disease) comprised SCA patients who had experienced three or more painful crises (≥3 crises) in the last one year preceding the study but, currently in steady state, while Group B/control group (mild-moderate disease), comprised SCA patients matched for age, sex, highest educational status, and occupation but who have had no painful crisis or had only one or two painful crises (0-2 crises) in the last one year preceding the study and currently in steady state. RESULTS The overall mean age of the patients was 18.4±12.2 (range=2-52) years. The mean values of the haematological parameters including haemoglobin concentration, white cell count, platelet count, and neutrophil count were significantly higher in those with severe crises than mild-moderate crises (p<0.05). Sickle cell related complications including Avascular Necrosis (AVN) and leg ulcers were significantly higher in the study group than the control group (p<0.05). CONCLUSION There was significant association between the frequency of crises and haemogblobin level, platelet and neutrophil counts and some clinical parameters: AVN, nephropathy and stroke. Future preventive interventions for reduction in frequency of crisis amongst patients with SCA could be targeted at controlling the blood levels of the identified haematological parameters.

  • Determinants of compliance to iron supplementation among pregnant women in Enugu, Southeastern Nigeria
    EO Ugwu, AO Olibe, SN Obi, and AO Ugwu

    Medknow
    BACKGROUND Anemia in pregnancy is highly prevalent among antenatal clinic attendees in Enugu, Nigeria despite the practice of routine iron supplementation in pregnancy. The major problem with iron supplementation in pregnancy is compliance, and this may be a potential driver to the persistent high prevalence of anemia in this population. OBJECTIVES To find out the compliance rate and determinants of compliance to iron supplementation among pregnant women in Enugu, southeastern Nigeria. MATERIALS AND METHODS This was a questionnaire-based cross-sectional study of eligible pregnant women receiving antenatal care at the University of Nigeria Teaching Hospital (UNTH), Ituku/Ozalla, Enugu, Nigeria between April 1, 2012 and January 31, 2013. RESULTS The knowledge of iron supplementation was 76.3% ( n = 302), however, the compliance rate was 65.9% ( n = 261). Tertiary level of education and high social class were factors significantly associated with compliance to iron supplementation after adjusting for other factors in the binary logistic regression analysis ( P < 0.05). The major barriers to compliance to iron supplementation included gastrointestinal side effects of iron supplements (41.7%), non-affordability of iron supplements (28.3%), and forgetfulness (15.0%) among the antenatal mothers. CONCLUSION The compliance rate of 65.9% for iron supplementation by pregnant mothers in Enugu can further be improved by providing the drug free of charge in the short term and improvement in education and socioeconomic class of the populace in the long run.

  • Stroke prevalence amongst sickle cell disease patients in Nigeria: A multi-centre study
    AJ Madu, NA Galadanci, AM Nalado, KU Garba, OF Fowodu, A Hassan, M Inyama, A Oluwaseun, T Nwagha, OG Ibegbulam,et al.

    African Journals Online (AJOL)
    BACKGROUND Stroke is a life-changing, debilitating complication of sickle cell disease (SCD). Previous studies had recorded high stroke prevalence amongst this group of patients. Nigeria has a large population of people affected by this condition and this study aims to assess the stroke prevalence in this large population. METHODOLOGY Stroke prevalence data from 14 physicians working in 11 tertiary health centres across the country was collated by doctors using the sickle cell registers and patient case notes. This data was then collated and used to obtain the overall stroke prevalence in adult and children. RESULTS The stroke prevalence in sickle cell disease patients in Nigeria was observed to be 12.4 per 1000 patients. Prevalence in the adult patients was 17.7 per 1000 patients and 7.4 per 1000 patients in children. Twenty three percent of the affected patients had more than stroke episode. CONCLUSION The stroke prevalence in Nigeria is lower than previously recorded rates and further studies will be required to investigate other factors which may play a role.

  • Malaria and anaemia in pregnancy: A cross-sectional study of pregnant women in rural communities of Southeastern Nigeria
    Emmanuel O. Ugwu, Cyril C. Dim, Benjamin S. Uzochukwu, Emeka I. Iloghalu, and Angela O. Ugwu

    Oxford University Press (OUP)
    BACKGROUND Several strategies are used in the care of pregnant women accessing antenatal care in primary health centres in Nigeria, with the aim of reducing the burden of malaria and anaemia. The objective of the study was to appraise the prevalence of malaria parasitaemia and anaemia in pregnant women attending antenatal clinics in rural communities of Southeastern Nigeria where malaria preventive strategies are in place. METHODS We undertook a cross-sectional study of 300 pregnant women receiving antenatal care in randomly selected primary health centres in the Nkanu West local government area (LGA), Enugu state, Nigeria from August to September 2010. RESULTS The prevalence of malaria parasitaemia was 92.0% (276/300) (mild in 86.7% [260/300] and moderate in 15.3% [16/300]). The prevalence of anaemia was 49.3% (148/300) (mild in 29.3% [88/300] and moderate in 20% [60/300]). There were no severe cases of malaria parasitaemia or anaemia. The educational status and occupation of participants were significantly associated with the occurrence of peripheral parasitaemia and anaemia respectively (p<0.05). CONCLUSION The prevalence of malaria and anaemia is very high in the Nkanu West LGA of Enugu State, Nigeria. Efforts to reduce the prevalence of malaria parasitaemia and anaemia in pregnancy should be intensified in rural settings of Enugu state and Nigeria as a whole.

  • Avascular necrosis in sickle cell (homozygous S) patients: Predictive clinical and laboratory indices
    AJ Madu, AK Madu, GK Umar, K Ibekwe, A Duru, and AO Ugwu

    Medknow
    BACKGROUND Pathogenetic mechanism as well as laboratory and clinical correlates of osteonecrosis in sickle cell have not been fully investigated. The aim of this study is to investigate the predictive value of the steady state white cell and platelet count as well as the frequency of bone pain crisis per annum to detect sickle cell patients who will eventually develop avascular necrosis (AVN). PATIENTS AND METHODS A 5 year retrospective analysis of 122 homozygous S (HbSS) patients, aged 6-49 years (mean age 24.7 ± 7 years), out of which 16 patients (13.1%) had developed AVN within the years under review. RESULTS The prevalence of AVN in sickle cell patients was determined to be 13.1 per 1000. The steady state white cell count, platelet count, frequency of bone pain crisis and hematocrit, was compared in patients that develop AVN and those who had not over the period. Only the steady state platelet count was found to differ significantly ( P = 0.011) between these two patient groups and to correlate positively (Pearson correlation coefficient = -0.251) with development of AVN. The hematocrit, white cell count, and frequency of bone pain crisis were found neither to differ significantly nor correlate with the development of AVN. CONCLUSION In conclusion, patients with a raised steady state platelet count may have a higher tendency to develop AVN and may require closer orthopedic review and prophylactic intervention.

  • Utilization of insecticide treated nets among pregnant women in enugu, South Eastern Nigeria
    EO Ugwu, PC Ezechukwu, SN Obi, AO Ugwu, and TC Okeke

    Medknow
    BACKGROUND The goal of roll back malaria partnership is to achieve universal coverage for all populations at risk using appropriate interventions for prevention and case management. OBJECTIVE The objective of this study is to determine the use of insecticide treated nets (ITNs) and other anti-vector measures among pregnant women in an area hyper-endemic for malaria. MATERIALS AND METHODS Questionnaires were administered to a cross-section of 832 consecutive pregnant women attending antenatal care in three hospitals in Enugu, Nigeria that have high client flow for maternity services. Data collected were analyzed using descriptive and inferential statistics by means of the Statistical Package for Social Sciences (SPSS) version 16. P-value of less than 0.05 was considered statistically significant. RESULTS The mean age of the women was 33.2 ± 2.9 (range: 15-45) years. Three hundred and fifty nine (43.1%) women owned insecticide treated nets (ITNs), however 325(90.5%) slept under the nets during the index pregnancies; equivalent to 39.1% utilization rate among the 832 women studied. Out of the 325 (39.1%) women that used ITNs; 236 (28.4%) used it singly, while 89 (10.7%) used it in combination with other anti-vector measures. Educational status and social class of the women had strong association with the use of ITNs (P < 0.0001). Women who used ITNs were significantly less likely to have acute malaria, anaemia and babies with low birth weight than women who did not use ITNs (P < 0.05). CONCLUSION The use of ITNs is poor among pregnant women in Enugu, but associated with favorable maternal and feto-neonatal outcome. Future measures to increase its use should consider improvement in educational level and social class of our women.

RECENT SCHOLAR PUBLICATIONS

  • Impact of Binet Staging versus Tumour Bulk on Treatment Outcome in Chronic Lymphocytic Leukaemia
    AJ Madu, HC Okoye, EA Muoghalu, AO Ugwu, AN Duru, CE Nonyelu, ...
    Nigerian Postgraduate Medical Journal 31 (1), 76-80 2024

  • The Need to Consider Pro-Active Treatment for Cerebral Artery Conditional Blood Velocity Determined By Transcranial Doppler Ultrasonography (TCD) in Sickle Cell Disease (SCD)
    I Okpala, E Modebe, C Nonyelu, A Duru, O Ezenwosu, B Chukwu, ...
    Blood 142 (Supplement 1), 1128-1128 2023

  • Fucosyltransferase VII (FUT7) Activity in Patients with Sickle Cell Disease and Healthy Controls
    OE Eze, T Nwagha, E Muoghalu, S Ocheni, O Ibegbulam, AU Eze, ...
    Blood 142, 5287 2023

  • Blood donation practices, processing and utilisation of blood components in government tertiary hospitals in Nigeria: a multicentre cooperative study
    G Umar, I Abdulqadir, N Ugwu, T Adeyemo, N Yau, A Hassan, J Olaniyi, ...
    International Health, ihad105 2023

  • A Systematic Review and Meta-Analysis of the Prevalence of Triplex Infections (Combined Human Immunodeficiency Virus, Hepatitis B Virus, and Hepatitis C Virus) among Pregnant
    GU Eleje, OM Loto, HA Usman, CU Onubogu, PO Fiebai, GO Akaba, ...
    Obstetrics and Gynecology International 2023 2023

  • Cerebral artery conditional blood velocity in sickle cell disease: a multicentre study and evidence for active treatment
    E Modebe, C Nonyelu, A Duru, O Ezenwosu, B Chukwu, A Madu, ...
    Archives of Disease in Childhood 108 (6), 440-444 2023

  • Efficacy and safety of Mojeaga remedy in combination with conventional oral iron therapy for correcting anemia in obstetric population: A phase II randomized pilot clinical trial
    GU Eleje, IU Ezebialu, JT Enebe, NC Ezeora, EO Ugwu, ID Ake, ...
    Plos one 18 (5), e0285474 2023

  • Antichlamydia Antibodies and Sperm Quality among Male Partners of Infertile Couples in Nigeria
    AO Olibe, PC Udealor, EO Ugwu, CA Iyoke, AO Ugwu, GU Eleje, ...
    Nigerian Journal of Clinical Practice 26 (3) 2023

  • The impact of COVID-19 on the birth rate in Nigeria: a report from population-based registries
    CB Oguejiofor, KM Ebubechukwu, GU Eleje, EO Ugwu, JT Enebe, ...
    Infectious diseases research 4 (1) 2023

  • Effectiveness of blood utilization across departments in a tertiary health institution
    IO Anigbogu, ED Muoghalu, AJ Madu, CE Nonyelu, HC Okoye, AO Ugwu, ...
    Acta Haematologica Polonica 54 (6), 411-416 2023

  • Renal Biomarkers in Pre-Eclampsia and their Associations with Severity of Pre-Eclampsia
    PC Ezechukwu, EO Ugwu, SN Obi, GU Eleje, PU Agu, EI Iloghalu, ...
    International Journal of Medicine and Health Development 28 (1), 7-11 2023

  • Iron supplementation and blood donation in Nigeria: Effect on Hemoglobin, red cell indices, and iron stores–The ranferon™ study
    TU Nwagha, AO Ugwu, CN Nwaekpe
    Annals of African Medicine 22 (1), 70-76 2023

  • Antivirals for prevention of hepatitis B virus mother‐to‐child transmission in human immunodeficiency virus positive pregnant women co‐infected with hepatitis B virus
    EO Ugwu, GU Eleje, AO Ugwu, UI Nwagha, JI Ikechebelu, UA Umeh, ...
    Cochrane Database of Systematic Reviews 2023

  • Does Sickle Cell Disease Protect against HIV Infection: A Systematic Review
    TU Nwagha, AO Ugwu, M Nweke
    Medical Principles and Practice 31 (6), 516-523 2022

  • Seroprevalence of Hepatitis B, and C Viruses and HIV Infections among Antenatal Women in a Secondary Health Facility in Lagos, Nigeria.
    AO Ugwu, CC Makwe, AA Oluwole, KS Oluwole, CC Odo, CD Ezeoke, ...
    West African Journal of Medicine 39 (10), 1084-1088 2022

  • Transfusion Services in Nigeria: Blood Banking Techniques and Availability of Facilities for Blood Component Therapy
    AO Ugwu, CC Efobi
    Nigerian Journal of Haematology 6 (1&2), 19-26 2022

  • Prevalence of Anaemia Based on Laboratory Findings in Patients Attending a Tertiary Health Facility in South-Eastern Nigeria: A 2-Year Review
    CC Chima, EC Azuike, CC Efobi, AO Ugwu, OA Enweani, OK Okoye
    Tropical Journal of Medical Research 21 (1), 87-92 2022

  • Venous Thromboembolism: Knowledge and Awareness Among Students of Faculties of Medicine in Southeast Nigeria—A Need for Curriculum Review
    HC Okoye, TU Nwagha, LI Eweputanna, CC Efobi, ED Ezigbo, AO Ugwu, ...
    International Journal of Medicine and Health Development 27 (3), 300-305 2022

  • Determinants of obstetricians’ pattern of care for sickle cell disease in pregnancy
    TU Nwagha, HC Okoye, AO Ugwu, EO Ugwu, AN Duru, IU Ezebialu, ...
    Journal of West African College of Surgeons 12 (3), 49-55 2022

  • Preventive Measures of Vaso‑Occlusive Crisis Among Sickle Cell Disease Patients in South‑Eastern Nigeria: How Much Do Our Patients Know?
    CC Efobi, AO Ugwu, NI Ugwu, HC Okoye, C Alo
    Nigerian Journal of Medicine 31 (2), 197-201 2022

MOST CITED SCHOLAR PUBLICATIONS

  • Determinants of compliance to iron supplementation among pregnant women in Enugu, Southeastern Nigeria
    EO Ugwu, AO Olibe, SN Obi, AO Ugwu
    Nigerian journal of clinical practice 17 (5), 608-612 2014
    Citations: 136

  • A five-year survey of caesarean delivery at a Nigerian tertiary hospital
    EOV Ugwu, KCE Obioha, OA Okezie, AO Ugwu
    Annals of medical and health sciences research 1 (1), 77-84 2011
    Citations: 113

  • Acceptability of human papilloma virus vaccine and cervical cancer screening among female health-care workers in Enugu, Southeast Nigeria
    EO Ugwu, SN Obi, PC Ezechukwu, II Okafor, AO Ugwu
    Nigerian journal of clinical practice 16 (2), 249-252 2013
    Citations: 93

  • Utilization of insecticide treated nets among pregnant women in Enugu, South Eastern Nigeria
    EO Ugwu, PC Ezechukwu, SN Obi, AO Ugwu, TC Okeke
    Nigerian journal of clinical practice 16 (3), 292-296 2013
    Citations: 57

  • Patter of Gynaecological Cancers in University of Nigeria Teaching Hospital, Enugu, South Eastern Nigeria
    EOV Ugwu, SE Iferikigwe, TC Okeke, AO Ugwu, OA Okezie, PU Agu
    Nigerian Journal of Medicine 20 (2), 266-269 2011
    Citations: 50

  • Pattern of blood donation and characteristics of blood donors in Enugu, Southeast Nigeria
    AO Ugwu, AJ Madu, CC Efobi, OG Ibegbulam
    Nigerian journal of clinical practice 21 (11), 1438-1443 2018
    Citations: 46

  • Pilot study of omega‐3 fatty acid supplements in sickle cell disease
    I Okpala, O Ibegbulam, A Duru, S Ocheni, I Emodi, A Ikefuna, G Umar, ...
    Apmis 119 (7), 442-448 2011
    Citations: 39

  • Stroke prevalence amongst sickle cell disease patients in Nigeria: a multi-centre study
    AJ Madu, NA Galadanci, AM Nalado, KU Garba, OF Fowodu, A Hassan, ...
    African Health Sciences 14 (2), 446-452 2014
    Citations: 31

  • Incidence, pattern and management of ovarian cancer at a tertiary medical center in Enugu, South East Nigeria
    CA Iyoke, GO Ugwu, EC Ezugwu, N Onah, O Ugwu, O Okafor
    Annals of Medical and Health Sciences Research 3 (3), 417-421 2013
    Citations: 31

  • Avascular necrosis in sickle cell (homozygous S) patients: Predictive clinical and laboratory indices
    AJ Madu, AK Madu, GK Umar, K Ibekwe, A Duru, AO Ugwu
    Nigerian Journal of Clinical Practice 17 (1), 86-89 2014
    Citations: 27

  • Sexual practices of people living with HIV in South Eastern Nigeria
    J Ikechebelu, S Mbamara, N Joe-Ikechebebelu, A Ezenwabachili
    Nigerian Journal of Clinical Practice 12 (4) 2009
    Citations: 24

  • Malaria and anaemia in pregnancy: a cross-sectional study of pregnant women in rural communities of Southeastern Nigeria
    EO Ugwu, CC Dim, BS Uzochukwu, EI Iloghalu, AO Ugwu
    International Health 6 (2), 130-137 2014
    Citations: 22

  • Cesarean section rate and outcomes during and before the first wave of COVID-19 pandemic
    GU Eleje, EO Ugwu, JT Enebe, CC Okoro, BC Okpala, NC Ezeora, ...
    SAGE Open Medicine 10, 20503121221085453 2022
    Citations: 20

  • Anti‑malaria prescription in pregnancy among general practitioners in Enugu state, south east Nigeria
    EO Ugwu, ES Iferikigwe, SN Obi, AO Ugwu, PU Agu, OA Okezie
    Nigerian Medical Journal 54 (2) 2013
    Citations: 20

  • Clinical and laboratory predictors of frequency of painful crises among sickle cell anaemia patients in Nigeria
    AO Ugwu, OG Ibegbulam, TU Nwagha, AJ Madu, S Ocheni, I Okpala
    Journal of Clinical and Diagnostic Research: JCDR 11 (6), EC22 2017
    Citations: 17

  • Perception of problem based learning versus conventional teaching methods by clinical medical students in Nigeria
    HC Okoye, IA Meka, AO Ugwu, IA Yahaya, O Otokunefor, OO Ojo, ...
    Pan African Medical Journal 33 (1) 2019
    Citations: 14

  • Hyperhaemolytic syndrome in sickle cell disease: clearing the cobwebs
    AJ Madu, AO Ugwu, C Efobi
    Medical Principles and Practice 30 (3), 236-243 2021
    Citations: 11

  • Transfusion in limited infrastructure locations–where to go decades after safe blood initiative by World Health Organization?
    A Ugwu, D Gwarzo, T Nwagha, A Gwarzo, A Greinacher
    ISBT Science Series 15 (1), 118-125 2020
    Citations: 11

  • Is renal medullary carcinoma the seventh nephropathy in sickle cell disease? A multi-center Nigerian survey
    A Madu, N Galadincci, G Umar, S Abdulahi, F Fowodu, A Hassan, ...
    African Health Sciences 16 (2), 490-496 2016
    Citations: 10

  • ABO blood group as a biomarker of preeclampsia among antenatal clinic attendees in Nigeria
    HC Okoye, CC Efobi, AO Ugwu, EO Ugwu, TU Nwagha
    Nigerian Journal of Clinical Practice 23 (5), 729-733 2020
    Citations: 7