الفهرس 
Rhythm Changes Following Trans-catheter Closure of Perimembranous Ventricular Septal Defects in children
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Abstract
Perimembranous ventricular septal defect (pmVSD) is the most common
subtype of ventricular septal defects. Transcatheter closure is nowadays an
alternative to surgical closure in selected patients. Complete heart block
(CHB) is the most dangerous complication after pmVSD closure.
The aim of this study was to evaluate cardiac rhythm after transcatheter
device closure and identify risk factors of postprocedural arrhythmia.
Forty children who had pmVSD closure between 4/2013 and 6/2021 were
studied between 8/2020 and 7/2021. All patients underwent transthoracic
echocardiography (TTE), electrocardiography (ECG), and 24 hours Holter
monitor recording. The mean age of patients at time of procedure was
5.4±2.76 years (range 1-13 years). Weight and height percentiles were
significantly increased after pmVSD device closure. The median duration
since device closure was 16 months. The median size of device was 6mm.
Right bundle branch block (RBBB) was reported in 3 (7.5%) patients.
Neither CHB, nor left bundle branch block were reported in this study. 65%
of patients had minor rhythm changes in their 24 hours Holter recording.
The commonest abnormality detected in Holter monitor were prevailing
sinus tachycardia.
PmVSD device closure is a safe procedure with minor adverse events. CHB
after pmVSD closure is unpredictable adverse event that need long term
follow –up