Pediatrics

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Factors associated with mortality and long-term outcomes of pediatric acute kidney injury in a resource limited setting
(Karger AG, Basel, 2023) Alao, M. A.; Ibrahim, O. R.; Ademola, A. D.; Asinobi, A. O.
Introduction: Despite being a leading cause of morbidity and mortality globally, acute kidney injury (AKI) is worse in resource-limited areas. This study explores AKI incidence, in-hospital mortality, and long-term outcomes in resource limited settings. Methods: This was a prospective study of children with AKI from2014 to 2019. KDIGO 2012 defined AKI. We assessed the etiology, in-hospital mortality, and long-term outcome of AKI in a mission hospital. Results: Only 169 of 201 AKI patients had complete data. The ages ranged from 1.08 months to 17.5 years; 65.7% were male and 65.1% were from lower socioeconomic class. The incidence of AKI was 59.6 cases per 1,000 persons (95%CI: 5.42, 47.1). Most patients had stage 1 KDIGO AKI (91; 53.8%). 1–5 years old had the highest incidence of AKI (65; 38.5%); sepsis (26.6%), severe malaria (15.4%), and nephrotic syndrome (14.8%) were common AKI causes. Fever (72.8%), pallor (52.1%), and vomiting (45.6%) were the most common symptoms. Thirty two (27.8%) patients had high blood pressure. In-hospital mortality was 14.8% (95% CI: 9.8, 21.1). The cumulative incidence of AKI-related mortality was 93.2 per 1,000 person years. Poor outcome was associated with breathlessness, hyponatremia, and leukocytosis. Kaplan-Meier survival curve showed 81% (CI: 74–87%) survival after 5 years of AKI. On Cox proportional-hazards analysis, the absence of breathlessness (HR: 2.537, 95%: CI 1.210–5.317) and hyponatremia (HR: 2.914, 95% CI: 1.343–6.324) were associated with increased survival. Conclusion: In resource-limited settings, infectious diseases and nephrotic syndrome are common causes of AKI. Factors associated with mortality include breathlessness and hyponatremia
Childhood nephrotic syndrome in Africa: Epidemiology, treatment trends, and outcomes
(Elsevier Inc., 2022) Ademola, A. D.; Asinobi, A. O.; Alao, M. A.; Olowu, W. A.
Nephrotic syndrome is a common childhood glomerular disease that is associated with massive proteinuria and edema. Children with nephrotic syndrome are at risk of chronic kidney disease, disease-related complications, and treatment-related complications. Patients with frequently relapsing disease or steroid toxicity may require newer immunosuppressive medications. However, access to these medications is limited in many African countries owing to prohibitive cost, the need for frequent therapeutic drug monitoring, and a lack of appropriate facilities. This narrative review examines the epidemiology of childhood nephrotic syndrome in Africa, including trends in treatment and patient outcomes. In most of North Africa, as well as among White and Indian populations in South Africa, the epidemiology and treatment of childhood nephrotic syndrome closely resembles that of European and North American populations. Historically, secondary causes of nephrotic syndrome (eg, quartan malaria nephropathy and hepatitis B−associated nephropathy) were predominant among Blacks in Africa. Over time, the proportion of secondary cases has decreased, along with rates of steroid resistance. However, focal segmental glomerulosclerosis increasingly has been reported among patients with steroid resistance. There is a need for consensus guidelines for the management of childhood nephrotic syndrome in Africa. Furthermore, establishing an African nephrotic syndrome registry could facilitate monitoring of disease and treatment trends, and provide opportunities for advocacy and research to improve patient outcomes.
Paediatric dialysis at a tertiary hospital in South-West Nigeria: A 4-year report
(Karger AG, Basel, 2022) Ademola, A. D.; Asinobi, A. O.; Alao, M. A.; Wade, A. W.
Introduction: Dialysis is potentially lifesaving in children with acute kidney injury (AKI) or chronic kidney disease (CKD), but availability is limited in low-income countries and lower-middle-income countries (LMICs). Methods: In the present study, we perform a 4-year study of patients who received peritoneal dialysis (PD) or haemodialysis (HD) at the Paediatric Nephrology Unit of the University College Hospital Ibadan, Nigeria. Subgroup analysis was performed on patients with sepsis or malaria AKI who underwent HD or PD for predictors of in-hospital mortality. Results: A total of 167 children aged 7 days to 18 years, median 7 (interquartile range 3–12) years, (60.5% males) were studied. In total, 129 (77.2%) had AKI, while 38 had CKD. Regarding AKI, 83 children (64.3%) received HD only, 42 underwent PD only, while 4 underwent both HD and PD. Malaria AKI was treated with HD in 43 (51.8%) or PD in 8 (10.5%), while sepsis AKI was treated with HD in 20 (21.4%) or PD in 33 (78.6%). Mortality in AKI was 16.3% overall, 10.8% in children on HD only, and 26.2% in children on PD only. Patients with sepsis AKI had higher mortality compared to patients with malaria AKI (RR 7.96) [1.70–37.37]). Subgroup analysis showed that age, diagnosis, and dialysis modality were not independent risk factors for mortality. The aetiology of CKD was glomerulonephritis in 26 (68.4%): treatment was HD in 36 and PD in 2 with mortality being 26.3%. Conclusions: PD for AKI showed relatively good outcomes in a LMIC. However, funding and support for a formal dialysis program for the management of AKI and CKD are needed.
Zinc phosphide (rodenticide) poisoning: A case report of deliberate self-harm in an eleven-year-old
(Paediatric Association of Nigeria, 2022) Akinlolu, A. A.; Asinobi, A. O.; Ademola, A. D.; Akinyinka, O. O.; Abioye, O.; Adelaja, A.; Philip, O. R.
Zinc Phosphide(Zn3P2) is a common rodenticide freely available in Nigeria for use against rodents. Occasionally human consumption occurs either accidentally or intentionally with potential consequences of multiorgan toxicity and death. An 11-year-old boy consumed an unknown quantity of zinc phosphide marketed as Push Out with the intention of committing suicide and killing some members of the family as his response to chastisement for a misdemeanour. Patient presented in the hospital 4 days after ingestion of zinc phosphide with a history of profound vomiting and abdominal pain. Laboratory evaluation showed evidence of hepatic dysfunction, acute kidney injury and elevated serum amylase. He was managed conservatively and discharged home after two weeks of admission. We report this case to emphasise the need for Paediatricians to consider ingestion of rodenticides as a differential diagnosis of hepatoxicity and pancreatic enzyme elevation, as well as to highlight the possibility of suicide among children. There is need to control the indiscriminate use of rodenticides, strengthen public health education on poisoning as well as establish Poison Information Centres in our environment.
Trends in the epidemiology of childhood nephrotic syndrome in Africa: A systematic review
(Pediatric Nephrology, 2021) Wine, R.; Vasilevska-Ristovska, J.; Banh, T.; Knott, J.; Noone, D.; Gbadegesin, R.; Ilori, T. O.; Okafor, H. U.; Adetunjil, A. E.; Boima, V.; Amira, O.; Osafo, C.; Guemkam, G.; Ajayiq,, S.; Makusidi, M. A.; Anigilaje, E. A.; Ruggajo, P.; Asinobi, A. O.; Ademola, A. D.; Parekh, R. S.
Background: Childhood nephrotic syndrome, if left untreated, leads to progressive kidney disease or death. We quantified the prevalence of steroid-sensitive nephrotic syndrome, steroid-resistant nephrotic syndrome, and histological types as the epidemiology of nephrotic syndrome in Africa remains unknown, yet impacts outcomes. Methods: We searched MEDLINE, Embase, African Journals Online, and WHO Global Health Library for articles in any language reporting on childhood nephrotic syndrome in Africa from January 1, 1946 to July 1, 2020. Primary outcomes included steroid response, biopsy defined minimal change disease, and focal segmental glomerulosclerosis (FSGS) by both pooled and individual proportions across regions and overall. Findings: There were 81 papers from 17 countries included. Majority of 8131 children were steroid-sensitive (64% [95% CI: 63–66%]) and the remaining were steroid-resistant (34% [95% CI: 33–35%]). Of children biopsied, pathological findings were 38% [95% CI: 36–40%] minimal change, 24% [95% CI: 22–25%] FSGS, and 38% [95% CI: 36–40%] secondary causes of nephrotic syndrome. Interpretation: Few African countries reported on the prevalence of childhood nephrotic syndrome. Steroid-sensitive disease is more common than steroid-resistant disease although prevalence of steroid-resistant nephrotic syndrome is higher than reported globally. Pathology findings suggest minimal change and secondary causes are common. Scarcity of data in Africa prevents appropriate healthcare resource allocation to diagnose and treat this treatable childhood kidney disease to prevent poor health outcomes. Funding: Funding was provided by the Canadian Institute for Health Research (CIHR) and the National Institute of Health (NIH) for the H3 Africa Kidney Disease Research Network. This research was undertaken, in part, from the Canada Research Chairs program.
Childhood acute glomerulonephritis in Ibadan Nigeria
(Paediatric Association of Nigeria, 2020) Asinobi, A. O.; Ademola, A. D.; Nwankwo, A. F.
The use of an improvised Nasogastric Tube as a Peritoneal Dialysis Catheter and challenges of adaptation-A case report
(African Paediatric Nephrology Association, 2019) Ademola, A. D.; Asinobi, A. O.; Akuse, R. M.
Background: Paediatric dialysis for acute kidney injury (AKI) in developing countries may be a challenge because of limited access to standard gadgets. Adapted gadgets such as nasogastric tubes have been used to provide peritoneal dialysis (PD)in such settings. The nasogastric tube is usually inserted by the trocar or surgical technique which is cumbersome. We describe passage of the nasogastric tube for PD at the bedside by a technique that is considered easier than the trocar or surgical method. Case report and Treatment: A two- and-a-half-year-old girl presented with oliguric AKI secondary to malaria and intravascular haemolysis with suspected uraemic encephalopathy. Her serum creatinine on admission was 9.4mg/dl. A nasogastric tube was adapted as PD catheter, and was inserted by the modified Seldinger technique on post-admission day 1. Results: She received 39 cycles of PD over 5 days. Complications of PD included catheter outflow obstruction on post admission day 2 on account of which the catheter was replaced. She also developed Klebsiella pneumoniae peritonitis and on account of which the procedure was discontinued on post admission day 6. She regained normal urine output on post admission day 7. She was managed with iv meropenem based on the antibiotic sensitivity pattern with resolution of peritonitis. She showed significant improvement and her serum creatinine on post admission day 15 was 0.5 mg/dl.She was discharged home on post admission day 18. Conclusion: Nasogastric tube, adapted as PD catheter and inserted by modified Seldinger technique may be life-saving in patients with AKI in developing countries.
Predictors and outcome of acute kidney injury after non-cardiac paediatric surgery
(Springer Science+Business Media, 2019) Lawal, T. A.; Raji, Y. R.; Ajayi, S. O.; Ademola, A. D.; Ademola, A. F.; Ayandipo, O. O.; Adigun, T.; Ogundoyin, O. O.; Olulana, D. I.; Asinobi, A. O.; Salako, B. L.
Background: It is necessary to define the problem of acute kidney injury (AKI) after non-cardiac surgery in order to design interventions to prevent AKI. The study aimed to evaluate the occurrence, determinants and outcome of AKI among children undergoing general (non-cardiac) surgery. Methods: This was a prospective cohort study of patients aged ≤ 15 years who had general surgery over 18 months period at a tertiary hospital in Nigeria. AKI was evaluated at 6 and 24 h and within 7 days of surgery. Data were analysed using SPSS version 21. Results: A total of 93 patients were studied with age ranging from 3 days to 15 years (median = 4 years). AKI occurred within 24 h of surgery in 32 (34.4%) and cumulatively over 7 days in 33 (35.5%). Patients who had sepsis were nearly four times as likely as others to develop perioperative AKI (OR = 3.52, 95% CI 1.21, 10.20, p = 0.021). Crude mortality rate was 12.1% (4/33); no mortality was recorded among those without AKI, p = 0.014. Conclusion: Perioperative AKI occurred in 35.5% of children who underwent general (non-cardiac) surgery. Patients who had sepsis were four times more likely than others to develop AKI. Mortality was documented only in patients who had AKI.
Steroid response in primary childhood nephrotic syndrome in a tropical African environment
(Medical and Dental Consultants' Association of Nigeria, 2020) Asinobi, A. O.; Ademola, A. D.; Ogunkunle, O. O.
Background: Earlier studies on childhood nephrotic syndrome (NS) in tropical Africa showed steroid resistance in the majority. More recent studies show a variable picture, necessitating a re‑evaluation. This study was aimed at determining the current pattern of steroid response in childhood NS, in an environment known to be dominated by steroid resistance. Patients and Methods: This prospective study of consecutive children who received steroid therapy for primary NS was carried out at the University College Hospital, Ibadan, Nigeria between 2006 and 2013. The outcomes of interest were steroid sensitivity and death. The recruited patients received a 4-6 weeks’ course of prednisolone at 60 mg/m2/day followed by alternate day doses of 40 mg/m2 up to total steroid therapy duration of 6 months in steroid sensitive patients. Statistical analysis was carried out using STATA version 12.0. P value <0.05 was considered significant. Results: Of 109 children that received steroids for at least 8 weeks, whose mean (SD) age was 7.9 (3.7) years, 69 (63.3%) were steroid sensitive. Those aged ≥6 years responded as well as those aged <6 years (P = 0.78). Boys were more likely to be steroid‑sensitive than girls, 65.2% versus 34.8% (P = 0.039). There was zero mortality among the patients studied. Conclusion: This study has shown a better steroid sensitivity of 63.3% in children with primary NS compared with the previously reported 36.8-42.9% in patients with highly selective proteinuria. This improved steroid response and zero mortality show a remarkable departure from the past.
Spectrum of childhood obstructive uropathy in Ibadan, Nigeria
(MedPrime, 2019) Asinobi, A. O.; Ademola, A. D.; Lawal, T. A.; Takure, A. O.; Shittu, O. B.
Background and Objectives: Obstructive uropathy (OU) is an important cause of morbidity and mortality in childhood with congenital OU being among the top three aetiologies of paediatric end-stage kidney disease (ESKD). With paucity of data on the impact of childhood OU in a setting of largely unaffordable facilities for ESKD management, further studies are needed. The aim of the study was to appraise the aetiological pattern and short- term outcome of childhood OU. Methods: A descriptive cross-sectional study was conducted on consecutively presenting children aged 15 years and below with features of urinary tract obstruction at the University College Hospital, Ibadan between January 2009 and December 2012. Their biodata, clinical presentation, aetiology, treatment, and short- term outcome were analysed in addition to the prevalence of OU in relation to other childhood renal disorders. Results: Eighty-six children aged one day to 15 years with a median age of 2.5 years and a modal age of 6 years were recruited over a 4-year period. The male to female ratio was 4.7:1. Congenital OU occurred in 81% of cases, with the lower urinary tract more frequently affected (78%). Posterior urethral valves (PUV) was the most common cause of OU (59.3%) followed by pelvi-ureteric junction (PUJ) obstruction in 17.4%; 73.3% of all PUJ obstructions occurred in females. Only 3.5% of cases were detected prenatally. Of all incident admissions into the Paediatric Nephrology Unit, OU accounted for 20.7%. An in-hospital mortality rate of 5% occurred. Conclusion: Childhood OU is a significant cause of renal disease in Ibadan accounting for one-fifth of new paediatric renal admissions. It was majorly congenital with a male preponderance and PUV was the most common cause. Contrary to expectations, PUJ obstruction occurred more often in females. Prenatal diagnosis rate was very low.

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