الفهرس 
Secundum Atrial Septal Defect (ASD)
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Abstract
Summary and Conclusion
Atrial septal defects (ASDs) are one of the most common congenital heart
diseases (CHDs). Secundum ASD may lead to significant left-to-right
shunting with resultant right-sided chamber enlargement and pulmonary
hypertension. Closure of ASD is usually recommended when there is
evidence of right sided chamber dilation. Surgical or percutaneous closure of
ASDs are commonly performed.
Atrial arrhythmias may occur in patients with ASD before or after ASD
closure. Major arrhythmias are uncommon in children with atrial septal
defects. The most common arrhythmias are atrial flutter and fibrillation
(AF); incidences of which increase with age, and with coexisting heart
disease particularly mitral valve disease. In addition to tachyarrhythmias,
atrioventricular block has been reported in patients with ASD.
The aim of this study was to determine the frequency of early, mid-term
and late arrhythmias (by Holter monitoring) and Electrocardiographic
changes in children after ostium secundum ASD closure by transcatheter
device versus surgical approach, and to determine the risk factors associated
with the development of postintervention or post-operative arrhythmias in
these pediatric patients.
This study was conducted at the Pediatric Cardiology Unit, Tanta
University and Cairo University Hospitals, on 30 pediatric patients, aged
from 1-16 years, who had undergone either transcatheter or surgical closure
of secundum ASDs, in the period from December 2015 till December 2018.
Patients were classified into two groups: