Clinical Utilities of Electrocardiography in the Diagnosis of Myocardial Ischemia in Children With Sickle Cell Anemia: Correlation With Serum Cardiac Troponin I.

BACKGROUND: Sickle cell anemia (SCA) is associated with recurrent vaso-occlusive crisis (VOC) and the risk of myocardial ischemia (MI). This study investigated the utility of electrocardiography (ECG) and cardiac troponin I (cTnI) in diagnosing MI during VOC. MATERIALS AND METHODS: Children with SCA 5 to 15 years of age in VOC (patients) and age-matched and sex-matched steady-state controls were studied. Their ECG and cTnI levels were measured at contact and after 4 to 6 weeks. RESULTS: One hundred eighty-six children (93 patients and 93 controls) were studied. The mean (SD) ages of the patients and controls were 8.8 (3.2) and 9.0 (3.1) years, respectively. The mean MI score was significantly higher for the patients, 1.7 (1.2), than the controls, 1.3 (1.0), P=0.002. A significantly higher proportion of the patients, 18 (19.4%), also had significant ischemia compared with the controls, 8 (8.6%), P=0.016. The median (interquartile range) serum cTnI level was significantly higher in the patients than the controls, P=0.006. All 7 of the patients with elevated cTnI had VOC. No significant correlation was found between MI score and cTnI in both groups. CONCLUSIONS: cTnI is elevated and ECG features of MI worsen during VOC. Longitudinal studies to investigate their evolvement over time are advocated.

Pattern of Clinical and Laboratory Presentation of Cerebral Malaria among Children in Nigeria.

Introduction: Cerebral malaria (CM) is the most lethal form of severe malaria with high case fatality rates. Overtime, there is an inherent risk in changing pattern of presentation of CM which, if the diagnosis is missed due to these changing factors, may portend a poor outcome. Variations in the pattern of clinic-laboratory presentations also make generalization difficult. This study was, therefore, set out to report the pattern of clinical and laboratory presentation of CM. Methods: This was a cross-sectional study among children aged 6 months to 14 years admitted with a diagnosis of CM as defined by the World Health Organization criteria. A pretested pro forma was filled, and detailed neurological examination and laboratory (biochemical, microbiology, and hematology) investigations were done. P <5% was considered statistically significant. Results: Sixty-four children were recruited with a mean age of 34.9 ± 24.9 months and a male-to-female ratio of 1.9:1. There were 87.5% of under-five children. Fever (96.9%) was the major presenting feature closely followed by convulsions (92.2%). Convulsions were mainly generalized (94.9%) and multiple (76.5%). Profound coma (Blantyre coma score of 0) was present in 12.5% of cases, and the leading features on examination were fever (84.4%) and pallor (75.0%). Retinal vessel whitening (48.4%) was the most common funduscopic abnormality. Metabolic acidosis (47.9%), severe anemia (14.1%), hyperglycemia (17.2%), and hypoglycemia (7.8%) were seen among the children. Few (1.6%) had hyperparasitemia and bacteremia (3.2%). Conclusion: Early recognition of the clinical presentation and prompt management may improve the outcome of cerebral malaria.

Blood pressure and electrocardiographic profile of children with sickle cell anaemia in steady-state and vaso-occlusive crisis.

Objective: To compare the cardiovascular features of patients with sickle cell anaemia (SCA) in steady-state with those in vaso-occlusive crisis (VOC) at the Wesley Guild Hospital (WGH). Design: A descriptive cross-sectional, matched, case-control study among children with SCA at the WGH, a tertiary health facility in southwest Nigeria. Setting: The participants were recruited from the children's emergency unit and paediatric haematology clinic of the WGH. Participants: Consisted of 93 children with VOC (cases) and 93 age and sex-matched in steady state (controls), aged 5 - 15 years. Main outcome measures: Cardiovascular parameters, including pulse rate, blood pressure, and electrocardiographic profile, were assessed and compared using the appropriate statistical tests. Results: The mean (SD) age of the cases and controls were 8.8 (3.2) years and 9.0 (3.1) years, respectively (p= 0.106). There was no significant difference in the mean height of the groups. The mean pulse rate, diastolic, systolic, and mean arterial pressures were significantly higher in the cases than in the controls. A significantly higher proportion of the cases than the controls also had a higher frequency of heart blocks, prolonged QTc interval, ST elevation or depression, and T wave abnormality (p = 0.018, 0.039, 0.041, 0.009, respectively). The prevalence of chamber enlargements was not significantly different between the two groups. Conclusion: Cardiovascular dysfunction is worse during VOC when compared with steady state. Physicians should look for these dysfunctions in SCA children with VOC to reduce mortality from the disease. Funding: None declared.

Tetralogy of Fallot in the nascent open-heart surgical era in a tertiary hospital in south-west Nigeria: lessons learnt.

BACKGROUND: Tetralogy of Fallot (TOF) is the leading cyanotic congenital heart disease. We commenced open-heart surgery at the Obafemi Awolowo University Teaching Hospitals Complex (OAUTHC), Ile-Ife, Nigeria in 2016. OBJECTIVES: To review the incidence, pattern, management and treatment outcomes of TOF at the OAUTHC. METHODS: A retrospective audit was undertaken of hospital records, including echocardiograms of patients with TOF seen from January 2016 to February 2020 at the Paediatric Cardiology Unit, OAUTHC. RESULTS: Seventy-two patients (37 boys and 35 girls) aged 0.17-22 years had TOF. Thirty-three (45.8%) had surgery; 31 (93.9%) corrective surgery and two (6.1%) a modified Blalock-Taussig shunt. Complications following surgery included cardiac dysfunction, post-transfusion malaria, pulmonary regurgitation, pericardial effusion and death (15%). Thirty-nine (54.2%) patients had conservative medical management. Complications included polycythaemia and thrombotic stroke, and 14 (35.9%) patients died. CONCLUSIONS: TOF is associated with significant morbidity and mortality in developing countries. Early and safe corrective surgery is desirable.

Impact of postnatal depression on infants' growth in Nigeria.

BACKGROUND: The contribution of maternal postnatal depression to infant growth and under-nutrition in Africa has not been well studied. This study aims to examine the impact of postnatal depression (PND) on infants' physical growth in the first 9 months of life in Nigeria. METHODS: A longitudinal case controlled study in which 242 women (consisting of 120 depressed and 122 matched non-depressed postpartum women) had their infants' weight and length measured at the 6th week, 3rd month, 6th month and 9th month after delivery. Discontinuation with breastfeeding and illnesses like diarrhoea, persistent vomiting, fever and cough were also recorded at these periods. RESULTS: Infants of depressed mothers had statistically significant poorer growth than infants of non-depressed mothers at the 3rd month (weight OR 3.41, 95% CI 1.30-8.52; length OR 3.28, 95% CI 1.03-10.47) and the 6th month postpartum (weight OR 4.21, 95% CI 1.36-13.20; length OR 3.34, 95% CI 1.18-9.52). Depressed mothers were more likely to stop breastfeeding earlier and their infants more likely to have episodes of diarrhoea and other infectious illnesses. LIMITATIONS: Psychiatric interview was conducted only once (at 6 weeks postpartum), our sample size was moderate and we did not account for mothers who had been depressed in pregnancy. CONCLUSION: Prevention of postnatal depression and close monitoring of the growth of infants of depressed mothers should be integrated into maternal and child health policies in this region.

Effectiveness of dried Carica papaya seeds against human intestinal parasitosis: a pilot study.

The tropical fruit Carica papaya and its seeds have proven antihelminthic and anti-amoebic activities. To determine the effectiveness of air-dried C. papaya seeds on human intestinal parasitosis, 60 asymptomatic Nigerian children with stool microscopic evidence of intestinal parasites received immediate doses (20 mL) of either an elixir composed with air-dried C. papaya seeds and honey (CPH) or honey alone (placebo) in two randomized treatment groups. Repeat stool microscopic examinations were conducted 7 days postintervention for intestinal parasites. Significantly more subjects given CPH elixir than those given honey had their stools cleared of parasites [23 of 30 (76.7%) vs. five of 30 (16.7%); z = 4.40, P = .0000109]. There were no harmful effects. The stool clearance rate for the various types of parasites encountered was between 71.4% and 100% following CPH elixir treatment compared with 0-15.4% with honey. Thus, air-dried C. papaya seeds are efficacious in treating human intestinal parasites and without significant side effects. Their consumption offers a cheap, natural, harmless, readily available monotherapy and preventive strategy against intestinal parasitosis, especially in tropical communities. Further and large-scale intervention studies to compare C. papaya with standard antiparasitic preparation are desirous.

Neonatal tetanus at the close of the 20th century in Nigeria.

The year 2000 marked another failed World Health Organization deadline for neonatal tetanus (NNT) eradication. Existing preventive strategies can be enhanced by exploring factors involved in the persistence of the scourge. Thus, records of neonates admitted between 1996 and 2000 into the Wesley Guild Hospital, Ilesa, were analysed. Of 3051 total neonatal admissions,162 (5.3%) had NNT. Eighty-nine (54.9%) mothers had clinic-based antenatal care (ANC), but only 59 (36.4%) had tetanus toxoid (TT) vaccines. The majority (66.7%) of them delivered at home or churches and others at either private clinics or primary health centres. Overall, the case fatality rate was 43.8%, though it was significantly higher among babies whose mothers had neither clinic-based ANC (odds ratio [OR] = 2.62; 95% confidence interval [CI] = 1.33-5.18) nor antenatal TT vaccination (OR = 2.41; 95% CI = 1.17-5.03). Thus, improvement on ANC, anti-tetanus immunization and ensuring hygienic deliveries are crucial for eliminating NNT in the 21st century.

Audit of availability and distribution of paediatric cardiology services and facilities in Nigeria.

BACKGROUND: Paediatric cardiac services in Nigeria have been perceived to be inadequate but no formal documentation of availability and distribution of facilities and services has been done. OBJECTIVE: To evaluate and document the currently available paediatric cardiac services in Nigeria. METHODS: In this questionnaire-based, cross-sectional descriptive study, an audit was undertaken from January 2010 to December 2014, of the personnel and infrastructure, with their distributions according to geopolitical zones of Nigeria. RESULTS: Forty-eight centres participated in the study, with 33 paediatric cardiologists and 31 cardiac surgeons. Echocardiography, electrocardiography and pulse oximetry were available in 45 (93.8%) centres while paediatric intensive care units were in 23 (47.9%). Open-heart surgery was performed in six (12.5%) centres. South-West zone had the majority of centres (20; 41.7%). CONCLUSIONS: Available paediatric cardiac services in Nigeria are grossly inadequate and poorly distributed. Efforts should be intensified to upgrade existing facilities, establish new and functional centres, and train personnel.

Comparison of healing of incised abscess wounds with honey and EUSOL dressing.

OBJECTIVE: To clinically compare the healing of abscess wounds dressed with either crude undiluted honey or Edinburgh University solution of lime (EUSOL). DESIGN: A prospective clinical randomized study. LOCATION: The Isolation Children's Ward of the Wesley Guild Hospital, Ilesa, an affiliate of the Obafemi Awolowo University, Ile-Ife, Nigeria. SUBJECTS: Thirty-two (32) Nigerian children with 43 pyomyositis abcesses. INTERVENTIONS: All subjects had fresh surgical incision and drainage of the abcesses and a 21-day course of ampicillin plus cloxacillin (Ampiclox) and gentamicin; the wounds were left to close spontaneously with twice-daily wound dressing with packing of the abscess cavity with either honey- or EUSOL-soaked gauze in two randomized treatment groups. OUTCOME MEASURES: The clinical conditions of the wound sites were documented on days 1, 3, 7, and 21 as either clean or dirty, dry or wet, granulation tissue present or absent, and epithelialization present or absent; the length of hospital stay was also measured. RESULTS: Honey-treated wounds demonstrated quicker healing and the length of hospital stay was significantly shorter in patients with honey-treated wounds than those treated with EUSOL (t = 2.45, p = 0.019). CONCLUSIONS: Honey is a superior wound dressing agent to EUSOL. Honey is recommended for the dressing of infected wounds, more so in tropical countries, where it is most readily available.

Efficacy of artemisinin combination therapy for the treatment of uncomplicated falciparum malaria in Nigerian children.

INTRODUCTION: The development and spread of Plasmodium falciparum resistance to most commonly used antimalarials remain a major challenge in the control of malaria. Constant monitoring of drug efficacy is an important tool in establishing rational antimalarial drug policies. METHODOLOGY: A randomized comparative study was conducted at the Wesley Guild Hospital, Ilesa, Nigeria between February 2010 and September 2011 comparing the efficacy and safety of artemether-lumefantrine (Coartem) and fixed dose of artesunate plus amodiaquine (Larimal) in the treatment of uncomplicated P. falciparum malaria in children betweem 6 and 144 months of age. P. falciparum malaria parasitemia was assessed by microscopy and rapid diagnostic test. Drugs were administered according to age for three days under supervision. The primary efficacy endpoint was a day 28 PCR-corrected parasitological cure. RESULTS: A total of 182 patients were enrolled in the two treatment groups, Coartem (n = 101) and Larimal (n = 81), and tested after 28 days. In the intention-to-treat population, Coartem (n = 101) and Larimal (n = 81) had a PCR-corrected cure rate of 98% and 100% respectively, while in the per-protocol population, Coartem (n = 89) and Larimal (n = 71) both had a PCR-corrected cure rate of 100% at day 28. Although parasite and fever clearance time was faster in the Larimal group, no significant difference was observed between the two drugs. No serious adverse effects  were reported. CONCLUSION: Five years after being introduced in Nigeria, both Coartem and Larimal have been shown to be safe and highly effective in the treatment of uncomplicated P. falciparum malaria in children.

School performance of Nigerian adolescents with epilepsy.

PURPOSE: The study assessed the school performance of Nigerian adolescents with epilepsy compared with healthy controls and examined the variables correlating with their academic difficulties. METHODS: The school grades of adolescents with epilepsy aged 12 to 18 years (n = 73) over the past academic year were compared with the grades of their classmates of the same age and gender. Risk factors possibly associated with school performance, such as adolescent variables (age, gender, perceived stigma, attitude toward epilepsy, and psychopathology), seizure variables (age at onset of illness, years of illness, types of seizures, and frequency of seizures per month), drug variables [types of antiepileptic drugs (AEDs), number of AEDs and side effects of AEDs], and family variables (family's socioeconomic status, family functioning, caretakers' psychopathology, and caretakers' perceived stigma) were assessed. RESULTS: The mean school grades of adolescents with epilepsy are significantly lower than are those of their healthy controls (p < 0.001) in all the subjects. The variables that significantly predict poor school performance in adolescents with epilepsy include psychopathology in the caretaker (p < 0.001), adolescents' perceived poor family functioning (p = 0.002), adolescents' attitude toward the illness (p = 0.001), adolescents' felt stigma (p = 0.002), externalizing symptoms in the adolescents (p = 0.004), and duration of illness (p = 0.024). CONCLUSIONS: The determinants of poor school performance in adolescents with epilepsy in Nigeria are multivariate, with psychosocial factors most important. These should be noted for early identification and screening of those children at greatest risk for academic failure and the greatest need for appropriate educational remediation services.