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Related Concept Videos

Cardiac Catheterization II: Right Heart Catheterization01:21

Cardiac Catheterization II: Right Heart Catheterization

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Right Heart Catheterization: An OverviewRight heart catheterization is an invasive diagnostic procedure that measures right-sided cardiac and pulmonary artery pressures, calculates cardiac output, and identifies intracardiac shunts. It provides detailed hemodynamic data essential for diagnosing and managing various cardiovascular conditions, such as pulmonary hypertension.Access SitesCommon access sites for right heart catheterization include the internal jugular vein in the neck region, the...
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Related Experiment Video

Updated: Dec 27, 2025

Echocardiographic Evaluation of Atrial Communications before Transcatheter Closure
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Venous flow patterns after percutaneous atrial septal defect closure: Does the mechanical device decrease right

Amitabh Poonia1, Priya Giridhara1, Sivasankaran Sivasubramonian1

  • 1Department of Cardiology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India.

Echocardiography (Mount Kisco, N.Y.)
|March 1, 2020
PubMed
Summary
This summary is machine-generated.

Percutaneous closure of atrial septal defects (ASDs) improves systemic venous flow, especially in larger defects. Follow-up reveals progressive enhancement of diastolic flow over six months.

Keywords:
atrial complianceatrial septal defectpercutaneous device closurevenous Doppler inflow

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Area of Science:

  • Cardiology
  • Medical Devices
  • Vascular Physiology

Background:

  • Surgical closure of ostium secundum atrial septal defects (ASDs) can lead to abnormal systemic venous flow.
  • Systemic venous flow changes after percutaneous ASD closure are not well-studied.

Purpose of the Study:

  • To investigate systemic venous Doppler flow patterns after percutaneous closure of ASD.
  • To correlate these changes with defect and device size.

Main Methods:

  • Prospective documentation of systemic venous Doppler flow patterns in 50 subjects.
  • Measurements taken before, immediately after, and at 6-month follow-up.
  • Correlation with defect and device size.

Main Results:

  • Increased forward flow velocity (systolic and diastolic) in hepatic veins and superior vena cava post-closure.
  • Significant increase in the diastolic/systolic (D/S) flow ratio, indicating improved atrial filling.
  • Changes were more pronounced and statistically significant in patients with larger defect sizes (≥15 mm/sq.m).

Conclusions:

  • Percutaneous ASD closure positively impacts systemic venous flow dynamics.
  • Larger defects and devices are associated with more significant flow changes.
  • Persistent abnormalities warrant follow-up for potential atrial remodeling and arrhythmias.