An observational study in Post Tetralogy of Fallot Repair Arrhythmias and Echocardiographic Changes, sponsored by Sohag University. Not yet recruiting at 1 site in Egypt. Open to participants aged 1 Day to 25 Years. Per ClinicalTrials.gov, last updated 2026-07-15.
Sponsored by Sohag University · Observational
Aim of my study is to detect echocardiographic, ECG and Holter changes in children who have undergone surgical repair of Tetralogy of Fallot. It is a retrospective observational study which will be conducted in Sohag university hospital. Age group of patients included in the study varying from 1 day up to 25 years old.
Aim of my study is to detect echocardiographic, ECG and Holter changes in children who have undergone surgical repair of Tetralogy of Fallot. This will be done by history taking of having chest pain , palpitations or any other cardiac symptoms then general and cardiac examination then performing 12-lead ECG and Holter ECG to detect any arrhythmias. Echocardiography will be also done to detect presence of pulmonary or tricuspid regurgitation, ventricular dilatation or pulmonary stenosis. The study is a retrospective observational study. Age group of patients varying from 1 day up to 25 years old.
Sohag University is the lead sponsor of 1,183 studies on the registry; 612 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Children and adolescents up to 25 years old of both sexes who have undergone surgical repair of Tetralogy of Fallot and have no other medical diseases.
Exclusion Criteria:
Holter ECG is used for recording electrocardiogram for long duration varying from hours to days. Echocardiography is used for detecting anatomical and functional defects in the heart.
QRS duration on 12-lead ECG in patients post Tetralogy of Fallot surgical repair
QRS duration measured in milliseconds using a standard 12-lead electrocardiogram
Time frame: Data will be collected over 1 year period starting after approval of protocol by medical research committee of Sohag faculty of medicine.
Corrected QT interval (QTc) on 12-lead ECG in patients post TOF surgical repair
QTc is measured in milliseconds using standard 12-lead electrocardiogram to detect if it is prolonged or not.
Time frame: Data will be collected over 1 year period starting after approval of protocol by medical research committee of Sohag faculty of medicine.
Presence and frequency of arrhythmias on Holter ECG in patients post TOF repair
Holter ECG helps in detection of arrhythmias as presence of ectopics
Time frame: Data will be collected over 1 year period starting after approval of protocol by medical research committee of Sohag faculty of medicine.
Severity of pulmonary regurgitation by echocardiography in patients post TOF surgical repair
Time frame: Data will be collected over 1 year period starting after approval of protocol by medical research committee of Sohag faculty of medicine.
Right ventricular function by echocardiography in patients post Tetralogy of Fallot surgical repair
Right ventricular contractility and enlargement measured by echocardiography to detect if patient is in heart failure or not.
Time frame: Data will be collected over 1 year period starting after approval of protocol by medical research committee of Sohag faculty of medicine.
PR interval by 12-lead ECG in pediatric patients post Fallot surgical repair
Time frame: Data will be collected over 1 year period starting after after approval of protocol by medical research committee of Sohag faculty of medicine.
Severity of tricusped regurgitation by echocardiography in pediatric patients post Fallot surgical repair.
Time frame: Data will be collected over 1 year period starting after approval of protocol by medical research committee of Sohag faculty of medicine.
Plan to share: Undecided
No publications or documents are linked to this record.
This study is not yet recruiting, as verified in Apr 2026. You cannot join it, but the record below documents what was studied.
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Sohag University