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Congenital Cardiology

Ventricular Septal Defect

Use echocardiography to define ventricular septal defect anatomy and hemodynamic effect, then distinguish patients suitable for observation from those needing congenital heart disease team assessment for surgical or transcatheter closure.

Clinical question: How should clinicians assess VSD hemodynamics and select observation, surgical closure, or transcatheter closure?

First decision

Define anatomy, shunt burden, and ventricular consequences

The initial objective is to establish whether the VSD is anatomically simple and hemodynamically tolerated or requires closure planning.

Obtain transthoracic echocardiography with two-dimensional imaging and color/spectral Doppler to localize the defect, characterize its relation to adjacent valves, assess chamber consequences, and estimate shunt hemodynamics. Echocardiography is the principal modality for VSD evaluation; Doppler-derived hemodynamic assessment can include shunt flow calculations.Wolters KluwerEchocardiographic evaluation of ventricular septal defectsWileyPractical Cardiovascular Medicine - Wiley Online Library

When noninvasive imaging does not adequately resolve shunt magnitude or pulmonary vascular status before a closure decision, perform cardiac catheterization to measure pulmonary and systemic flow ratio (Qp/Qs) and pulmonary-to-systemic resistance ratio (Rp/Rs). These measures have been used to derive a hemodynamic index in children with isolated VSD.WileyDetermination of the anatomical size of ventricular septal defects on ... A reported catheterization example of a clinically important VSD demonstrated Qp:Qs 3.0:1 with pulmonary vascular resistance 2.3 Wood units, illustrating how invasive measurements integrate shunt volume and pulmonary vascular load rather than defect diameter alone.journal chestnetVentricular Septal Defect Noted by Two ... - CHEST Journal

Interpret physiology in relation to pulmonary vascular resistance. In large VSDs, significant left-to-right shunting develops when PVR relative to systemic vascular resistance falls below 0.5:1; this explains why hemodynamic burden may evolve as pulmonary vascular physiology changes.publications aapPART 2: ANSWERS CARDIOLOGY - AAP Publications

Testing decisions in ventricular septal defect.Wolters KluwerEchocardiographic evaluation of ventricular septal defectsWileyPractical Cardiovascular Medicine - Wiley Online LibraryWileyDetermination of the anatomical size of ventricular septal defects on ...journal chestnetVentricular Septal Defect Noted by Two ... - CHEST Journalpublications aapPART 2: ANSWERS CARDIOLOGY - AAP Publications
Clinical questionTestResult that changes the next step
Where is the VSD and what structures may be affected?Transthoracic echocardiography with color and spectral DopplerDefines VSD anatomy and assesses ventricular and valvular consequences for surveillance versus closure evaluation.Wolters KluwerEchocardiographic evaluation of ventricular septal defectsWileyPractical Cardiovascular Medicine - Wiley Online Library
Is the shunt hemodynamically substantial?Doppler hemodynamic assessment; catheterization when neededQp/Qs quantifies pulmonary-to-systemic flow and informs intervention planning.WileyPractical Cardiovascular Medicine - Wiley Online LibraryWileyDetermination of the anatomical size of ventricular septal defects on ...
Is pulmonary vascular load acceptable for closure assessment?Cardiac catheterizationMeasure pulmonary vascular resistance and Rp/Rs alongside Qp/Qs; interpret in the context of the individual lesion and planned intervention.WileyDetermination of the anatomical size of ventricular septal defects on ...journal chestnetVentricular Septal Defect Noted by Two ... - CHEST Journal
Why may shunt severity increase over time in a large VSD?Hemodynamic assessment of relative vascular resistanceA PVR:SVR ratio below 0.5:1 is associated with significant left-to-right shunting in large VSD.publications aapPART 2: ANSWERS CARDIOLOGY - AAP Publications

Anatomic branch

Match VSD anatomy to surveillance and closure planning

The closure approach depends on VSD location, multiplicity, and proximity to the aortic and tricuspid valves or conduction tissue.

Perimembranous VSD is the lesion category specifically addressed in transcatheter closure guidance. Patient selection should occur through a multidisciplinary team that includes an interventional cardiologist and cardiac surgeon with congenital heart disease expertise, with particular caution in children and asymptomatic patients.nice org uk[PDF] HTG325 Percutaneous closure of patent foramen ovale to prevent ...

Muscular VSDs may be multiple. In complex “Swiss cheese” ventricular septation, more than one occlusion device has been used to obtain near-complete closure; this anatomy should prompt planning at a center experienced with complex congenital structural interventions rather than a single-device assumption.BMJClosing down: transcatheter closure of intracardiac defects ... - Heart

Conal (supracristal) VSD assessment should include careful echocardiographic review and, where required, catheterization and operative evaluation. In a surgical series, aortic valve abnormalities were present preoperatively in 72% of patients, making valve-focused imaging consequential when this anatomic subtype is suspected.jtcvsSurgical management of the conal (supracristal) ventricular septal ...

Anatomic features that alter VSD closure planning.BMJClosing down: transcatheter closure of intracardiac defects ... - HeartjtcvsSurgical management of the conal (supracristal) ventricular septal ...nice org uk[PDF] HTG213 Transcatheter endovascular closure of perimembranous ...nice org uk[PDF] HTG325 Percutaneous closure of patent foramen ovale to prevent ...
Anatomic patternPlanning concernAction
Perimembranous VSDDevice proximity to the conduction system and atrioventricular valves; complete heart block and valvular complications have been reported after device closure.nice org uk[PDF] HTG213 Transcatheter endovascular closure of perimembranous ...Use congenital multidisciplinary selection and a program with emergency surgical capability.nice org uk[PDF] HTG325 Percutaneous closure of patent foramen ovale to prevent ...
Multiple muscular VSDs (“Swiss cheese”)A single device may not address all communications.BMJClosing down: transcatheter closure of intracardiac defects ... - HeartRefer for complex congenital interventional or surgical planning; multiple devices have been used in selected cases.BMJClosing down: transcatheter closure of intracardiac defects ... - Heart
Conal/supracristal VSDAortic valve abnormalities were identified preoperatively in 72% in one surgical series.jtcvsSurgical management of the conal (supracristal) ventricular septal ...Perform targeted aortic valve assessment during anatomic definition and incorporate valve findings into procedural planning.jtcvsSurgical management of the conal (supracristal) ventricular septal ...

Intervention

Choose closure strategy through congenital heart disease expertise

Closure is a structural decision requiring anatomic suitability, hemodynamic assessment, and a plan for procedural rescue and rhythm follow-up.

For perimembranous VSD, transcatheter endovascular closure may be undertaken when selected patients have been evaluated within a multidisciplinary congenital heart disease program. Guidance specifies that children should undergo the procedure only in specialist pediatric cardiology units; across ages, the procedure should be performed by cardiologists trained in both implantation and complication management, with access to emergency cardiac surgery.nice org uk[PDF] HTG325 Percutaneous closure of patent foramen ovale to prevent ...

Do not treat transcatheter closure as interchangeable with surgery for every VSD anatomy. Surgical management remains relevant when anatomy is complex, when multiple defects require a tailored strategy, or when adjacent aortic valve pathology requires direct operative assessment or repair.BMJClosing down: transcatheter closure of intracardiac defects ... - HeartjtcvsSurgical management of the conal (supracristal) ventricular septal ...

Counsel explicitly about conduction and device-related complications before perimembranous device closure. Reported series using Amplatzer devices described complete heart block from 0% to 1.9%, left bundle branch block from 0% to 4%, aortic regurgitation from 0% to 4%, tricuspid regurgitation from 0% to 8%, tricuspid stenosis from 0% to 0.9%, and device embolization from 0% to 7.7%.nice org uk[PDF] HTG213 Transcatheter endovascular closure of perimembranous ...

Reported complications after transcatheter perimembranous VSD closure with Amplatzer devices.nice org uk[PDF] HTG213 Transcatheter endovascular closure of perimembranous ...
ComplicationReported rangeClinical response
Complete heart block0% to 1.9%; 1.07% immediately in one ECG-focused series.nice org uk[PDF] HTG213 Transcatheter endovascular closure of perimembranous ...Perform baseline and follow-up ECG assessment; ensure capability for urgent complication management.nice org uk[PDF] HTG213 Transcatheter endovascular closure of perimembranous ...nice org uk[PDF] HTG325 Percutaneous closure of patent foramen ovale to prevent ...
Left bundle branch block0% to 4%.nice org uk[PDF] HTG213 Transcatheter endovascular closure of perimembranous ...Assess new conduction changes after implantation and during follow-up.nice org uk[PDF] HTG213 Transcatheter endovascular closure of perimembranous ...
Aortic regurgitation0% to 4%.nice org uk[PDF] HTG213 Transcatheter endovascular closure of perimembranous ...Reassess aortic valve function by echocardiography after closure.nice org uk[PDF] HTG213 Transcatheter endovascular closure of perimembranous ...
Tricuspid regurgitation0% to 8%.nice org uk[PDF] HTG213 Transcatheter endovascular closure of perimembranous ...Reassess tricuspid valve function by echocardiography after closure.nice org uk[PDF] HTG213 Transcatheter endovascular closure of perimembranous ...
Tricuspid stenosis0% to 0.9%.nice org uk[PDF] HTG213 Transcatheter endovascular closure of perimembranous ...Evaluate valve gradients if post-procedure findings suggest obstruction.nice org uk[PDF] HTG213 Transcatheter endovascular closure of perimembranous ...
Device embolization0% to 7.7%.nice org uk[PDF] HTG213 Transcatheter endovascular closure of perimembranous ...Perform closure only where operators and emergency cardiac surgical services can manage device complications.nice org uk[PDF] HTG325 Percutaneous closure of patent foramen ovale to prevent ...

Monitoring

Follow repaired and unrepaired VSDs for rhythm, valve, and infection-related complications

Follow-up intensity should reflect anatomy, residual hemodynamics, repair status, and new clinical events.

After transcatheter closure, reassess device position, residual shunt, and aortic and tricuspid valve function by echocardiography, and obtain ECG surveillance for new atrioventricular or intraventricular conduction abnormalities. In reported series, new complete right bundle branch block, incomplete right bundle branch block, and left anterior hemiblock were documented at least 3 months after perimembranous closure.nice org uk[PDF] HTG213 Transcatheter endovascular closure of perimembranous ...

Refer adults with moderate or complex congenital heart disease to dedicated adult congenital heart disease care. Contemporary adult congenital guidance emphasizes management of moderate and complex lesions in dedicated centers with specialized training pathways.Wolters KluwerThe grown-up congenital heart disease dilemma in... : Annals of Pediatric Cardiology

Maintain a low threshold to evaluate fever with blood cultures and echocardiography when endocarditis is clinically suspected in patients with prior device closure, because transcatheter device closure of atrial or ventricular septal defects is associated with infective endocarditis risk.The LancetInfective endocarditis - The Lancet

Post-closure surveillance targets.The LancetInfective endocarditis - The Lancetnice org uk[PDF] HTG213 Transcatheter endovascular closure of perimembranous ...Wolters KluwerThe grown-up congenital heart disease dilemma in... : Annals of Pediatric Cardiology
TargetModalityFinding requiring escalation
Conduction systemECGNew atrioventricular block, bundle branch block, or hemiblock after closure warrants congenital cardiology assessment.nice org uk[PDF] HTG213 Transcatheter endovascular closure of perimembranous ...
Device and residual shuntEchocardiographyResidual flow or concern for device position should prompt structural congenital heart disease review.nice org uk[PDF] HTG213 Transcatheter endovascular closure of perimembranous ...
Valve functionEchocardiographyNew or worsening aortic or tricuspid regurgitation or tricuspid stenosis requires reassessment of closure consequences.nice org uk[PDF] HTG213 Transcatheter endovascular closure of perimembranous ...
Infective endocarditisBlood cultures and echocardiography when clinically suspectedFever or embolic/infectious findings after device closure require endocarditis evaluation.The LancetInfective endocarditis - The Lancet
Longitudinal congenital careAdult congenital heart disease programModerate or complex disease should be managed in a dedicated center.Wolters KluwerThe grown-up congenital heart disease dilemma in... : Annals of Pediatric Cardiology

Common questions

When is contrast echocardiography useful for suspected VSD?

Peripheral contrast echocardiography has been described as a highly specific real-time echocardiographic method for demonstrating VSD flow, but routine anatomic and hemodynamic characterization remains centered on standard two-dimensional and Doppler echocardiography.journal chestnetVentricular Septal Defect Noted by Two-Dimensional ...Wolters KluwerEchocardiographic evaluation of ventricular septal defects

References

  1. Leveraging artificial intelligence for predicting spontaneous closure ...www.thelancet.com · www.thelancet.com
  2. Atrial septal defects - The Lancetwww.thelancet.com · www.thelancet.com
  3. Infective endocarditis - The Lancetwww.thelancet.com · www.thelancet.com
  4. Closing down: transcatheter closure of intracardiac defects ... - Heartheart.bmj.com · heart.bmj.com
  5. Transcatheter closure of atrial septal defect in the elderly - Heartheart.bmj.com · heart.bmj.com
  6. Management of Stroke in Infants and Childrenstroke.ahajournals.org · stroke.ahajournals.org
  7. Echocardiographic evaluation of ventricular septal defectsjournals.lww.com · journals.lww.com
  8. The grown-up congenital heart disease dilemma in... : Annals of Pediatric Cardiologyjournals.lww.com · journals.lww.com
  9. Ischemic Stroke in Adults With Congenital Heart... : Journal of the American Heart Associationjournals.lww.com · journals.lww.com
  10. Neurodevelopmental Outcomes in Children With Congenital Heart ...journals.lww.com · journals.lww.com
  11. Practical Cardiovascular Medicine - Wiley Online Libraryonlinelibrary.wiley.com · onlinelibrary.wiley.com
  12. Determination of the anatomical size of ventricular septal defects on ...onlinelibrary.wiley.com · onlinelibrary.wiley.com
  13. 2021 ESC Guidelines for the diagnosis and treatment of acute and ...onlinelibrary.wiley.com · onlinelibrary.wiley.com
  14. Ventricular Septal Defect - Wiley Online Libraryonlinelibrary.wiley.com · onlinelibrary.wiley.com
  15. Beta‐blockers for congestive heart failure in children - Alabed, S ...www.cochranelibrary.com · www.cochranelibrary.com
  16. Ventricular Septal Defect Noted by Two ... - CHEST Journaljournal.chestnet.org · journal.chestnet.org
  17. Ventricular Septal Defect Noted by Two-Dimensional ...journal.chestnet.org · journal.chestnet.org
  18. PART 2: ANSWERS CARDIOLOGY - AAP Publicationspublications.aap.org · publications.aap.org
  19. Surgical management of the conal (supracristal) ventricular septal ...www.jtcvs.org · www.jtcvs.org
  20. Page numbers followed by an f, a t, or a b denote a figure, a table, or ...publications.aap.org · publications.aap.org
  21. [PDF] HTG213 Transcatheter endovascular closure of perimembranous ...www.nice.org.uk · www.nice.org.uk
  22. [PDF] NATIONAL INSTITUTE FOR HEALTH AND CARE EXCELLENCEwww.nice.org.uk · www.nice.org.uk
  23. [PDF] HTG325 Percutaneous closure of patent foramen ovale to prevent ...www.nice.org.uk · www.nice.org.uk
  24. Anaesthetic implications of grown-up congenital heart diseasewww.bjanaesthesia.org · www.bjanaesthesia.org