VSDNCT07715032
Follow-up After Percutaneous Device Closure of Ventricular Septal Defects
An observational study of VSD and Pediatric Cardiology, run by Assiut University.
Trial summary
Ventricular septal defects (VSDs) are the most common congenital heart defects, accounting for 30-40% of congenital cardiac anomalies. They result from an abnormal opening in the interventricular septum, leading to left-to-right shunting. Read more about this study
- Who is it for?
- Ages 6 months to 18 years
- Conditions the study is for
- VSD, Pediatric Cardiology
- What is being tested?
- • Amplatzer™ Ductal Occluder (ADO) • Amplatzer™ Muscular VSD Occluder • Amplatzer™ Membranous VSD Occluder
- Type of treatment
- Medical device
- How many people
- 85 participants
- Where
- No sites listed yet
- Study dates
- 1 Aug 2026to 1 Aug 2028
- How long will I take part?
- 6 Months
- Phase
- Observational
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 6 months to 18 years
- All sexes
- No healthy volunteers
- Child, Adult
Study population: Paediatric patients (age ≤18 years) undergoing percutaneous device closure of VSDs at the participating centres
Who may be able to join
- Age: 6 months to 18 years
- Confirmed diagnosis of VSD (perimembranous, muscular) by transthoracic echocardiography (TTE)
- Hemodynamically significant VSD with: (Imtiaz et al., 2023)
- Pulmonary blood flow (Qp) to Systemic blood flow (Qs) ≥1.5:1, OR
- Evidence of left ventricular volume overload, OR
- Pulmonary arterial hypertension (PAH) with reversible pulmonary vascular resistance
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- Suitable anatomy for device closure as assessed by TTE and/or transesophageal echocardiography (TEE)
- Adequate rim (≥2mm) from VSD edges to cardiac valves and conduction system (for perimembranous VSDs)
- Written informed consent from parents/legal guardians
- Assent from children ≥ 12 years (as appropriate
Who cannot join
- Active endocarditis or systemic infection
- Fixed, irreversible pulmonary arterial hypertension (pulmonary vascular resistance >8 Wood units/m² or ratio of pulmonary vascular resistance (Rp) to systemic vascular resistance (Rs) >0.5)
- Multiple VSDs not amenable to device closure
- VSD associated with complex congenital heart disease requiring surgical intervention
- Contraindication to antiplatelet therapy
- Known allergy to device materials (nickel-titanium alloy)
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- Patient or family unwilling to comply with follow-up protocol
- Life expectancy <1 year due to non-cardiac conditions
- Body weight <5 kg (relative contraindication, case-by-case assessment)
About this study
Official title: Outcomes and Short-term Follow-up After Percutaneous Device Closure of Ventricular Septal Defects: A Study From Two Tertiary Pediatric Cardiac Care Centers in Upper Egypt
Ventricular septal defects (VSDs) are the most common congenital heart defects, accounting for 30-40% of congenital cardiac anomalies. They result from an abnormal opening in the interventricular septum, leading to left-to-right shunting. Clinical presentation depends on defect size and pulmonary vascular resistance, ranging from asymptomatic small defects to heart failure symptoms in infancy, with older children developing exercise intolerance or pulmonary hypertension.
Although surgical closure has long been the standard treatment, percutaneous transcatheter device closure has emerged as a less invasive alternative for selected VSD types, particularly muscular and suitable perimembranous defects. This approach offers comparable efficacy with reduced morbidity and shorter hospital stays.
This bicentric study aims to evaluate procedural success, complications, and short-term outcomes of percutaneous VSD closure in paediatric patients from Upper Egypt, providing essential data to guide clinical practice and quality improvement in tertiary cardiac centres.
Read the detailed description
Ventricular septal defects (VSDs) are the most common congenital heart defects, accounting for 30-40% of congenital cardiac anomalies. They result from an abnormal opening in the interventricular septum, leading to left-to-right shunting. Clinical presentation depends on defect size and pulmonary vascular resistance, ranging from asymptomatic small defects to heart failure symptoms in infancy, with older children developing exercise intolerance or pulmonary hypertension.
Diagnosis is primarily established by transthoracic echocardiography, which accurately defines defect anatomy, shunt severity, ventricular function, and pulmonary artery pressures. Management is individualized according to hemodynamic significance, with small asymptomatic defects managed conservatively and significant defects requiring intervention following initial medical therapy.
Although surgical closure has long been the standard treatment, percutaneous transcatheter device closure has emerged as a less invasive alternative for selected VSD types, particularly muscular and suitable perimembranous defects. This approach offers comparable efficacy with reduced morbidity and shorter hospital stays.
Recent studies report high procedural success rates (95-98%) using evolving device technologies, including Amplatzer™ and newer asymmetric occluders. However, outcome data from developing regions remain limited, highlighting the need for population-specific evidence.
This bicentric study aims to evaluate procedural success, complications, and short-term outcomes of percutaneous VSD closure in paediatric patients from Upper Egypt, providing essential data to guide clinical practice and quality improvement in tertiary cardiac centres.
- Conditions
- VSD, Pediatric Cardiology
- Being tested
- • Amplatzer™ Ductal Occluder (ADO) • Amplatzer™ Muscular VSD Occluder • Amplatzer™ Membranous VSD Occluder
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
• Amplatzer™ Ductal Occluder (ADO) • Amplatzer™ Muscular VSD Occluder • Amplatzer™ Membranous VSD OccluderDevice
VSD closure
What is being measured
The primary outcome is the main question the study is designed to answer.
Procedural success rate
To evaluate the procedural success rate and immediate safety of percutaneous device closure of VSDs in paediatric patients.
Measured: baseline
Assess short-term complications
To assess short-term complications, including residual shunts, rhythm disturbances (especially AV block), and device-related adverse events during follow-up up to 6 months
Measured: baseline
Predictors of success and complications
To evaluate clinical, echocardiographic outcomes and compare predictors of success and complications between the two tertiary centres
Measured: baseline
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted20 Jul 2026
- Study start1 Aug 2026 (estimated)
- Primary completion1 Oct 2027 (estimated)
- Study completion1 Aug 2028 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for VSDStudies of the same condition, open and under way.
- More trials run by Assiut UniversityThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Prospective
- Enrolment
- 85 participants (estimated)
- Target duration
- 6 Months
Sponsor and investigators
- Lead sponsor
- Assiut University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Noran Hasan Megally, Assiut University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07715032
- Sponsor's protocol ID
- Closure of VSD
- Status last verified
- Jul 2026
- First submitted
- 15 Jul 2026
- Last updated
- 20 Jul 2026
- Results posted
- No
- FDA-regulated drug
- No
- FDA-regulated device
- Yes
Study at a glance
From the registry record, last updated by the sponsor on 20 Jul 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Outcomes and Short-term Follow-up After Percutaneous Device Closure of Ventricular Septal Defects: A Study From Two Tertiary Pediatric Cardiac Care Centers in Upper Egypt
- ClinicalTrials.gov ID
- NCT07715032
- Acronym / sponsor ID
- Closure of VSD
- Conditions
- VSD, Pediatric Cardiology
- Study type
- Observational
- Recruitment status
- Not yet recruiting
- Enrolment
- 85 participants (estimated)
- Lead sponsor
- Assiut UniversityUniversity, hospital or other
- Study start
- 1 Aug 2026 (estimated)
- Primary completion
- 1 Oct 2027 (estimated)
- Study completion
- 1 Aug 2028 (estimated)
- First posted
- 20 Jul 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Ventricular septal defects (VSDs) are the most common congenital heart defects, accounting for 30-40% of congenital cardiac anomalies. They result from an abnormal opening in the interventricular septum, leading to left-to-right shunting. Clinical presentation depends on defect size and pulmonary vascular resistance, ranging from asymptomatic small defects to heart failure symptoms in infancy, with older children developing exercise intolerance or pulmonary hypertension.
Although surgical closure has long been the standard treatment, percutaneous transcatheter device closure has emerged as a less invasive alternative for selected VSD types, particularly muscular and suitable perimembranous defects. This approach offers comparable efficacy with reduced morbidity and shorter hospital stays.
This bicentric study aims to evaluate procedural success, complications, and short-term outcomes of percutaneous VSD closure in paediatric patients from Upper Egypt, providing essential data to guide clinical practice and quality improvement in tertiary cardiac centres.
Detailed description
Ventricular septal defects (VSDs) are the most common congenital heart defects, accounting for 30-40% of congenital cardiac anomalies. They result from an abnormal opening in the interventricular septum, leading to left-to-right shunting. Clinical presentation depends on defect size and pulmonary vascular resistance, ranging from asymptomatic small defects to heart failure symptoms in infancy, with older children developing exercise intolerance or pulmonary hypertension.
Diagnosis is primarily established by transthoracic echocardiography, which accurately defines defect anatomy, shunt severity, ventricular function, and pulmonary artery pressures. Management is individualized according to hemodynamic significance, with small asymptomatic defects managed conservatively and significant defects requiring intervention following initial medical therapy.
Although surgical closure has long been the standard treatment, percutaneous transcatheter device closure has emerged as a less invasive alternative for selected VSD types, particularly muscular and suitable perimembranous defects. This approach offers comparable efficacy with reduced morbidity and shorter hospital stays.
Recent studies report high procedural success rates (95-98%) using evolving device technologies, including Amplatzer™ and newer asymmetric occluders. However, outcome data from developing regions remain limited, highlighting the need for population-specific evidence.
This bicentric study aims to evaluate procedural success, complications, and short-term outcomes of percutaneous VSD closure in paediatric patients from Upper Egypt, providing essential data to guide clinical practice and quality improvement in tertiary cardiac centres.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
- Target follow-up
- 6 Months
Who may qualify
- Ages
- 6 months to 18 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult
- Study population
- Paediatric patients (age ≤18 years) undergoing percutaneous device closure of VSDs at the participating centres
Key inclusion criteria (10 listed)
- Age: 6 months to 18 years
- Confirmed diagnosis of VSD (perimembranous, muscular) by transthoracic echocardiography (TTE)
- Hemodynamically significant VSD with: (Imtiaz et al., 2023)
- Suitable anatomy for device closure as assessed by TTE and/or transesophageal echocardiography (TEE)
- Adequate rim (≥2mm) from VSD edges to cardiac valves and conduction system (for perimembranous VSDs)
Key exclusion criteria (9 listed)
- Active endocarditis or systemic infection
- Fixed, irreversible pulmonary arterial hypertension (pulmonary vascular resistance >8 Wood units/m² or ratio of pulmonary vascular resistance (Rp) to systemic vascular resistance (Rs) >0.5)
- Multiple VSDs not amenable to device closure
- VSD associated with complex congenital heart disease requiring surgical intervention
- Contraindication to antiplatelet therapy
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| • Amplatzer™ Ductal Occluder (ADO) • Amplatzer™ Muscular VSD Occluder • Amplatzer™ Membranous VSD OccluderVSD closure | Device | – |
Primary outcome
Procedural success rate
Time frame: baseline
To evaluate the procedural success rate and immediate safety of percutaneous device closure of VSDs in paediatric patients.
Assess short-term complications
Time frame: baseline
To assess short-term complications, including residual shunts, rhythm disturbances (especially AV block), and device-related adverse events during follow-up up to 6 months
Predictors of success and complications
Time frame: baseline
To evaluate clinical, echocardiographic outcomes and compare predictors of success and complications between the two tertiary centres
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 20 Jul 2026.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
The record lists no contact. Use the official record to reach the sponsor.
Questions about this trial
What is this clinical trial studying?
An observational study of VSD and Pediatric Cardiology, run by Assiut University.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 10 inclusion and 9 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: opening soon, as of the sponsor's last update on 20 Jul 2026. Status can change between updates, so confirm with the study contact before making plans.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Procedural success rate (time frame: baseline). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 20 Jul 2026.