Rhythm abnormalities among hospitalised children in Lagos: a case series.

Arrhythmias refer to disturbances in heart rate or rhythm which leads to heart rates that are abnormally fast, slow or irregular. Rhythm abnormalities may be common among Nigerian children but there are only a few reports. The current write up is a clinical review of eight patients in various age groups including neonates, infants and older children. It is presented to highlight the different forms of arrhythmias that can occur in children, with varying underlying aetiology, thus, stressing the need for early recognition of arrhythmias in children, appropriate early intervention and challenges involved in their care.

Pulmonary Hypertension in Apparently Healthy Children in Southern Nigeria.

OBJECTIVE: To determine the severity and prevalence of pulmonary hypertension and its relationship with age and body mass index (BMI) in healthy children. STUDY DESIGN: Observational study. PLACE AND DURATION OF STUDY: University of Nigeria Teaching Hospital Ituku-Ozalla Enugu, Lagos State University Teaching Hospital, Niger Delta University Teaching Hospital, Bayelsa and Blessed Children Hospital Enugu from January 2010 to December 2019. METHODOLOGY: Four hundred and seventy (470) apparently healthy children aged 1 to 17 years underwent Doppler echocardiographic studies. Their tricuspid regurgitation velocity (TRV) was measured with continuous wave Doppler. Pulmonary artery systolic pressure (PASP) was estimated using the Bernoulli equation. Elevated PASP were determined at PASP ≥35/mmHg. Values were compared against age and BMI. RESULTS: The mean age was 7.9 ± 3.3 years. Four hundred and fifty-nine subjects (97.7%) had normal PASP while 11 (2.3%) had elevated PASP. Those with elevated PASP had a significantly higher mean TRV of 2.7 ± 0.22 cm/s (95% CI; 2.55-2.85) vs TRV of 1.56 ± 0.43cm/s (95% CI; 1.52-1.60) and higher mean PASP of 39.27±4.89 mmHg (95% CI; 35.99-42.56) vs 20.45 ± 5.34 mHg (95% CI; 19.96-20.94) (p=0.001). Though majority of the children had appropriate weight for ages, those with elevated PASP had a significantly greater weight than those with normal PASP (p<0.001). There was a weak positive correlation of PASP with age (r=0.16) and BMI in normal weight (r=0.08). Obese children had a negative correlation value(r=-0.13). A weak negative correlation of PASP with BMI was seen in underweight (r=-0.17 and overweight (r=-0.73) children (p>0.05). CONCLUSION: The mean pulmonary artery systolic pressure in the studied apparently healthy Nigerian children was 20.45± 5.34/ mmHg. The frequency of elevated PASP was 2.3%, commoner in children with higher BMI. Age and body mass index are not optimal predictors of PASP. Key Words: Pulmonary artery systolic pressure, Children, Pulmonary hypertension, Echocardiography.

First report of glycogen storage disease type 111a in a Nigerian child.

Glycogen storage disease (GSD) is a rare inborn error of metabolism with an incidence of 1/20,000-40,000 live births. Some of the presenting clinical features can mimic diseases commonly seen in the tropics and subtropics. We report a 14-month-old Nigerian child who presented at our institution with GSD Type 111a to alert physicians on the need to consider and recognise this rare disorder. The child presented with progressive abdominal swelling due to marked hepatomegaly. From the clinical history, the only clue to hypoglycaemia was that she eats very frequently. Her random blood sugar was normal; however, fasting blood sugar was low. The diagnosis was further entertained with laboratory results showing hypercholesterolaemia and uricaemia and confirmed by histology of biopsied liver tissue. GSD should be suspected in a child with unexplained hepatomegaly and investigated accordingly.