Chinyere Ezeaka

Prevalence of proteinuria among HIV-infected children attending a tertiary hospital in Lagos, Nigeria.

Sub-Saharan Africa is the epicentre of the HIV pandemic but there are few reports of HIV-related kidney diseases in children in this region. This study aimed to determine the prevalence of proteinuria in HIV-infected children at the Lagos University Teaching Hospital. Proteinuria was determined using urine protein-creatinine ratio. CD4+ cell count was determined for all the HIV-infected children. The mean age of the HIV-infected children was 74.4 +/- 35.6 months with a male: female ratio of 3:2. Compared with 6% of the 50 controls 20.5% of the 88 HIV-infected children had proteinuria (p = 0.026). Of 20 children with advanced clinical stage 40% had proteinuria compared with 14.7% of 68 children with milder stage (p = 0.004). Similarly, proteinuria was commoner among those with severe immunosuppression (p = 0.014). HAART use was not associated with significant difference in proteinuria prevalence (p = 0.491). Proteinuria was frequent among HIV-infected children, especially among those with advanced disease.

Pattern and predictors of maternal care-seeking practices for severe neonatal jaundice in Nigeria: a multi-centre survey

BackgroundNigeria is frequently associated with disproportionately high rates of severe neonatal jaundice (NNJ) underpinned by widespread Glucose-6-phosphate dehydrogenase (G6PD) deficiency. Timely and appropriate treatment of NNJ is crucial for preventing the associated morbidity and neuro-developmental sequelae. Since mothers are likely to be the first mostly to observe the onset of severe illness in their newborns, we set out to identify the pattern and predictors of maternal care-seeking practices for NNJ in three culturally-distinct settings in Nigeria.MethodsA multi-centre study was conducted among women attending antenatal clinics in Abuja, Lagos and Port Harcourt from October 2011 to April 2012 using a pretested questionnaire. Predictors of awareness of NNJ, accurate recognition of NNJ, use of potentially harmful therapies and preference for future hospital treatment were determined with multivariate logistic regressions.ResultsOf the 488 participants drawn from the three locations, 431 (88.3%) reported awareness of NNJ, predominantly (57.8%) attributable to professional health workers. A total of 309 (63.3%) mothers with prior knowledge of NNJ claimed they could recognise NNJ, but 270 (87.4%) from this group accurately identified the features of NNJ. Multiparous mothers (Adjusted odds ratio, AOR:4.05; 95% CI:1.75-9.36), those with tertiary education (AOR:1.91; CI:1.01-3.61), and those residing in Lagos (AOR:2.96; CI:1.10-7.97) were more likely to have had prior knowledge of NNJ. Similarly, multiparous mothers (AOR:2.38; CI:1.27-4.46) and those with tertiary education (AOR:1.92; CI:1.21-3.05) were more likely to recognise an infant with jaundice accurately. Mothers educated by health workers were 40% less likely to resort to potentially harmful treatment for NNJ (AOR:0.60; CI:0.39-0.92) but more likely to seek hospital treatment in future for an infant suspected with jaundice (AOR:1.88; CI:1.20-2.95).ConclusionsWomen with tertiary education and multiparous mothers who attend routine antenatal clinics are more likely than less educated women, to be associated with appropriate care-seeking practices for infants with NNJ regardless of the socio-cultural setting. Systematic efforts by professional health workers are warranted, as part of routine antenatal care, to engage other groups of mothers especially those likely to indulge in self-use of potentially harmful therapies.

Kidney function of HIV-infected children in Lagos, Nigeria: using Filler's serum cystatin C-based formula

BackgroundLimited data is available on kidney function in HIV-infected children in sub-Saharan Africa. In addition, malnutrition in these children further reduces the utility of diagnostic methods such as creatinine-based estimates of glomerular filtration rate. We determined the serum cystatin C level and estimated glomerular filtration rate of 60 antiretroviral-naïve, HIV-infected children and 60 apparently healthy age and sex matched children.MethodsSerum cystatin C level was measured using enzyme-linked immunosorbent assay technique, while glomerular filtration rate was estimated using Fillers serum cystatin C formula. Student t test, Mann Whitney U test, Pearson chi square and Fishers exact test were used, where appropriate, to test difference between groups.ResultsCompared to the controls, the HIV-infected group had significantly higher median (interquartile range) serum cystatin C levels {0.77 (0.29) mg/l versus 0.66 (0.20) mg/l; p = 0.025} and a higher proportion of children with serum cystatin C level >1 mg/l {10 (16.7%) versus one (1.7%); p = 0.004}. The HIV-infected children had a mean (± SD) eGFR of 96.8 (± 36.1) ml/min/1.73 m2 compared with 110.5 (± 27.8) ml/min/1.73 m2 in the controls (p = 0.021). After controlling for age, sex and body mass index, only the study group (HIV infected versus control) remained a significant predictor of serum cystatin C level (β = -0.216, p = 0.021). The proportion of HIV-infected children with eGFR <60 ml/min/1.73 m2 was eight (13.3%) versus none (0%) in the control group (p = 0.006). However, the serum cystatin C level, eGFR and proportions of children with serum cystatin C level >1 mg/l and eGFR <60 ml/min/1.73 m2 were not significantly different between the HIV-infected children with advanced disease and those with milder disease.ConclusionsHIV-infected children in Nigeria have higher serum cystatin C level and lower eGFR compared to age and sex matched controls.

The Impact of Recycled Neonatal Incubators in Nigeria: A 6-Year Follow-Up Study

Nigeria has a record of high newborn mortality as an estimated 778 babies die daily, accounting for a ratio of 48 deaths per 1000 live births. The aim of this paper was to show how a deteriorating neonatal delivery system in Nigeria may have, in part, been improved by the application of a novel recycled incubator technique (RIT). Retrospective assessment of clinical, technical, and human factors in 15 Nigerian neonatal centres was carried out to investigate how the application of RIT impacted these factors. Pre-RIT and post-RIT neonatal mortalities were compared by studying case files. Effect on neonatal nursing was studied through questionnaires that were completed by 79 nurses from 9 centres across the country. Technical performance was assessed based on 10-indices scores from clinicians and nurses. The results showed an increase in neonatal survival, nursing enthusiasm, and practice confidence. Appropriately recycled incubators are good substitutes to the less affordable modern incubators in boosting neonatal practice outcome in low-income countries.

Challenges and Frugal Remedies for Lowering Facility Based Neonatal Mortality and Morbidity: A Comparative Study

Millennium development goal target on infant mortality (MDG4) by 2015 would not be realised in some low-resource countries. This was in part due to unsustainable high-tech ideas that have been poorly executed. Prudent but high impact techniques could have been synthesised in these countries. A collaborative outreach was initiated to devise frugal measures that could reduce neonatal deaths in Nigeria. Prevailing issues of concern that could militate against neonatal survival within care centres were identified and remedies were proffered. These included application of (i) recycled incubator technology (RIT) as a measure of providing affordable incubator sufficiency, (ii) facility-based research groups, (iii) elective training courses for clinicians/nurses, (iv) independent local artisans on spare parts production, (v) power-banking and apnoea-monitoring schemes, and (v) 1/2 yearly failure-preventive maintenance and auditing system. Through a retrospective data analyses 4 outreach centres and one “control” were assessed. Average neonatal mortality of centres reduced from 254/1000 to 114/1000 whilst control remained at 250/1000. There was higher relative influx of incubator-dependent-neonates at outreach centres. It was found that 43% of mortality occurred within 48 hours of presentation (d48) and up to 92% of d48 were of very-low birth parameters. The RIT and associated concerns remedies have demonstrated the vital signs of efficiency that would have guaranteed MDG4 neonatal component in Nigeria.

Serum Cardiac Troponin T in Asphyxiated Term Neonates Delivered at Two Teaching Hospitals in Lagos, Nigeria

Background: Asphyxia is a leading cause of perinatal morbidity and mortality in the developing countries. All organs including the myocardium are vulnerable to ischemic injury in asphyxia. The aim of the current study was to assess myocardial injury in asphyxiated full-term neonates using their serum cardiac troponin T levels. Methods: In all, 30 term asphyxiated neonates and 30 gestational age-, birth weight-, and sex-matched controls were studied. Asphyxia was defined by double criteria of low umbilical arterial blood pH <7.20 and low five-minutes Apgar score ≤6, while the controls were term nonasphyxiated neonates with umbilical arterial blood pH ≥7.20 and five minutes Apgar score >6. The umbilical arterial pH was done soon after delivery, while the serum cardiac troponin T was done within the first 4 to 24 hours of life. Results: Participants and controls were similar in terms of mean gestational age, mode of delivery, gender, and birth weight (P = 1.0, .07, 1.0, and 1.0, respectively). Two thirds of the asphyxiated babies had elevated serum cardiac troponin T in the high risk range (> 0.1 ng/mL). On the contrary, none of the controls had serum cardiac troponin T in that range. Serum cardiac troponin T showed negative correlation with pH (r = −.75), five-minute Apgar score (r = −.74), and one-minute Apgar score (r = −0.70). Conclusion: The study identified perinatal asphyxia as a high-risk factor for elevated serum cardiac troponin T and hence for myocardial cellular injury.

Transfusional malaria in the neonatal period in Lagos, South-West Nigeria

Background and objectives Sick neonates in malaria endemic areas are frequently transfused with donor blood unscreened for malaria parasite. Consequently, they are at risk of transfusional malaria which can lead to increased neonatal mortality. The study aimed to determine the burden of transfusional malaria in neonates to help in policy formulation on prevention of transfusional malaria. Materials and methods One hundred and sixty four neonates admitted into the neonatal unit of a tertiary hospital over a 10 month period who were scheduled for blood transfusion were screened for malaria parasites pre-transfusion, at three and 14 days post transfusion using Giemsa stained thick and thin films. Donor blood was screened for malaria parasites at the point of transfusion. Neonates who developed malaria parasitaemia post transfusion were followed up for signs of malaria. Results All recruited neonates tested negative to malaria parasite pre- transfusion. One hundred and twenty (73.2%) were term neonates with 94(57.3%) aged 1-7days. Four (2.4%) neonates developed malaria parasitaemia three days post transfusion and all four developed fever that resolved on treatment for malaria. Three (1.8%) of 164 donor blood samples had malaria parasitaemia and all three (100%) neonates who were transfused with the infected donor blood developed malaria parasitaemia post transfusion. However, one neonate who developed malaria parasitaemia post transfusion was transfused with non-infected donor blood. Conclusions The prevalence of transfusional malaria in this study is low (2.4%). However, 100% of neonates who received malaria infected donor blood developed transfusional malaria. We therefore recommend routine screening of donor pre-transfusion, testing of neonates who develop fever post transfusion and treatment of those who test positive to malaria.

Infantile hemangioendothelioma of the liver in a Nigerian newborn: A case report

Hepatic hemangioendothelioma is the most common benign vascular tumor of the liver in infancy and it is the most likely of all hepatic tumors to present with symptoms early in life, presenting in the first 6 months of life. It may present with life-threatening complications such as congestive cardiac failure and thrombocytopenia. As a way of creating awareness to the existence of this rare condition in our environment, we report a case of symptomatic hemangioendothelioma in a newborn and challenges that can be encountered during management in a resource poor-setting. Baby OA is a 22-day-old female neonate who presented with an abdominal mass noted at birth. Diagnosis was made based on clinical findings and results of abdominal ultrasound scan and computerized tomography scan which were in keeping with a hepatic hemangioendothelioma. She was treated with oral prednisolone, propranolol, and aggressive supportive treatment with blood and platelet concentrate transfusions. Her management was hampered by challenges in obtaining a histologic diagnosis, financial constraints, and unavailability of wider therapeutic options. She has been discharged and is being followed-up at the out-patient clinics. Hemangioendothelioma should be considered in the differential diagnosis of infants presenting with an abdominal mass in the newborn period as it could be associated with significant morbidity and mortality requiring aggressive treatment and meticulous supportive care.