Work

Combined Use of a Modified Microvascular Plug Flow Restrictor and Right Ventricular Outflow Tract Stenting

Year: 2025

Type: article

Abstract: BACKGROUND: The balance of pulmonary and systemic blood flow is the fundamental paradigm that influences decision-making in cardiovascular shunt physiology. CASE SUMMARY: This case discusses a term neonate with a prenatal diagnosis of 22q11.2 deletion syndrome and tetralogy of Fallot with near pulmonary atresia, a confluent but severely hypoplastic main pulmonary artery and right pulmonary artery, an isolated left pulmonary artery from the aorta, and major aortopulmonary collateral arteries. Before surgical intervention, a right ventricular outflow tract stent was placed along with a modified microvascular plug (mMVP; Medtronic) to restrict flow in the left pulmonary artery. DISCUSSION: Recently, there have been case reports using an mMVP as a pulmonary flow restrictor. This innovative technique has shown promise in modulating pulmonary blood flow for patients awaiting surgical interventions or for whom surgery presents significant risks. TAKE-HOME MESSAGE: In patients with excess pulmonary blood flow, use of an mMVP to restrict flow can be a viable bridge to surgical intervention.

Source: JACC Case Reports

DOI: 10.1016/j.jaccas.2025.104423

Authors: Jordan A. Noble, Theodore J. Millette, Michael J. Shorofsky, Michael R. Hainstock, Samuel L. Casella

Institutions: Virginia Commonwealth University, Children's Hospital of Richmond at VCU, University of Virginia Children's Hospital, University of Virginia, Virginia Commonwealth University Medical Center

Language: English

Topic: Congenital Heart Disease Studies

Subfield: Epidemiology

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: gold

Estimated APC paid: $850