• Josephat M Chinawa, Awoere T Chinawa, Edmund N Ossai, and Chika O Duru.
• Professor and Pediatric Cardiologist, College of Medicine, Department of pediatrics, University of Nigeria/University of Nigeria Teaching Hospital (UNTH), Ituku- Ozalla, Enugu State, Nigeria.
• Libyan J Med. 2022 Dec 1; 17 (1): 2007603.

IntroductionAtrial septal defect (ASD) is a common congenital heart disease in children that uncommonly presents with pulmonary hypertension. Much is not known about the exact predictor of PAH in children with ASD.ObjectivesThis study aimed to determine the predictors of pulmonary hypertension in children with ASD.Patients And MethodsThis was a descriptive analysis of children with ASD carried out in three different institutions over a five-year period. Data entry and analysis were done using IBM Statistical Package for Social Sciences (SPSS) statistical software, version 25.ResultsThe majority of the participants, 52.2%, had pulmonary hypertension and 62.5% of them occurred as mild pulmonary hypertension. There was a very weak positive correlation between pulmonary hypertension and the size of atrial septal defect, increases in size of atrial septal defect correlate with increases in pulmonary hypertension and this was found not to be statistically significant (n = 67, r = 0.193, p = 0.118). There was a positive correlation between the size of atrial septal defect and the age of participants in months, increases in age correlate with increases in size of atrial septal defect and this was found to be statistically significant (n = 67, r = 0.357, p = 0.003).The highest proportion of respondents who had pulmonary hypertension, 64.7%, was seen among children less than 1 year old while the least proportion, 27.3%, was within 1-5 years, and the difference in proportions was found to be statistically significant (χ2 = 8.187, p = 0.017).ConclusionPulmonary hypertension in children with ASD occur usually in the mild form. Age is the only strong predictor of PAH in children with isolated ASD.

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