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Related Concept Videos

Cardiac Catheterization II: Right Heart Catheterization01:21

Cardiac Catheterization II: Right Heart Catheterization

169
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...
169
Cardiac Catheterization I: Pre-Procedure Overview01:28

Cardiac Catheterization I: Pre-Procedure Overview

167
Cardiac catheterization is an invasive diagnostic technique used to identify and evaluate structural and functional diseases of the heart and major blood vessels. This technique diagnoses congenital heart disease, coronary artery disease, valvular heart disease, and coronary spasms and assesses ventricular function. It helps guide treatment decisions, including the need for revascularization procedures like percutaneous coronary intervention (PCI) or coronary artery bypass grafting (CABG) and...
167
Venous Thrombosis II: Clinical Manifestations and Diagnostic Studies01:20

Venous Thrombosis II: Clinical Manifestations and Diagnostic Studies

41
The key difference between Superficial Vein Thrombosis (SVT) and Deep Vein Thrombosis (DVT) lies in their location and severity.Clinical ManifestationsSVT typically presents with localized pain, tenderness, and redness along the course of a superficial vein, often accompanied by a palpable, cord-like structure under the skin. This condition is usually less dangerous than DVT but can be uncomfortable and may lead to complications such as cellulitis or, rarely, a clot extension into the deep...
41
Cardiac Catheterization III: Left Heart Catheterization01:24

Cardiac Catheterization III: Left Heart Catheterization

219
Left heart catheterization is an invasive diagnostic procedure used to evaluate the function and structure of the left side of the heart. It is generally performed to diagnose and treat cardiovascular conditions such as valve abnormalities, coronary artery disease, and congenital heart defects.Diagnostic and therapeutic purposesLeft heart catheterization serves various diagnostic and therapeutic purposes, including:Assessing coronary artery bypass grafts.Evaluating coronary artery disease in...
219
Mitral Stenosis IV: Nursing Management01:27

Mitral Stenosis IV: Nursing Management

49
A comprehensive nursing assessment is essential for patients with valvular heart disease, which involves any dysfunction of the heart valves that could impact blood flow and overall heart function.Subjective Data Collection:Chief Complaint and Present Illness: Start with the patient's primary concerns, focusing on the onset, duration, and progression of cardiac symptoms such as dyspnea, fatigue, chest pain, and palpitations.Past Medical History: Collect detailed information on any previous...
49

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Related Experiment Video

Updated: Sep 15, 2025

Catheter-based Endovascular Angioplasty for Fibrosing Mediastinitis-associated Pulmonary Vein Stenosis
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Catheter-based Endovascular Angioplasty for Fibrosing Mediastinitis-associated Pulmonary Vein Stenosis

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Predicting Outcomes in Pediatric Intraluminal Pulmonary Vein Stenosis Using a Comprehensive Standardized

Ryan Callahan1, Kimberlee Gauvreau2, Mirjam Keochakian2

  • 1Department of Pediatrics, Children's Hospital of Philadelphia, and University of Pennsylvania Perelman School of Medicine (R.C.).

Circulation. Cardiovascular Interventions
|July 14, 2025
PubMed
Summary

Pulmonary vein stenosis (PVS) in children can be assessed using multimodal catheterization. Angiography and intravascular ultrasound findings predict vein outcomes, aiding in risk stratification for improved patient management.

Keywords:
angiographycardiologyheart diseasesstenosis, pulmonary vein

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Area of Science:

  • Cardiology
  • Pediatric Cardiology
  • Vascular Biology

Background:

  • Pediatric intraluminal pulmonary vein stenosis (PVS) affects a diverse group of young patients.
  • The hemodynamic and physiological impacts of PVS on pulmonary veins, including lumen, pressure, wall structure, compliance, and shear stress, require further investigation.

Purpose of the Study:

  • To assess PVS characteristics using a multimodal catheterization approach.
  • To determine the association between PVS characteristics and vein outcomes in pediatric patients.

Main Methods:

  • A prospective trial involving 50 pediatric patients (<13 years) undergoing cardiac catheterization for PVS.
  • Utilized angiography, pulmonary vein pressure, intravascular ultrasound, balloon compliance testing, and wall shear stress calculations.
  • Assessed vein status at 12 months as the primary outcome and transplant-free survival as the secondary outcome.

Main Results:

  • Increased angiographic severity, greater wall thickness (intravascular ultrasound), higher postintervention gradient, and elevated wall shear stress correlated with worse vein outcomes.
  • Multivariable analysis identified upstream luminal narrowing, ostial diameter <6 mm, and ≥35% upstream wall thickness as significant predictors of adverse vein outcomes.
  • A 3-point Invasive Pulmonary Vein Score prediction tool was developed; 12-month transplant-free survival was 92%.

Conclusions:

  • Multimodal pulmonary vein catheterization, particularly angiography and intravascular ultrasound, effectively predicts 12-month pulmonary vein outcomes in pediatric PVS.
  • The findings support the use of these techniques for risk stratification and management of pediatric PVS.