Related Experiment Video
Updated: Jan 29, 2026

Human Internal Mammary Artery IMA Transplantation and Stenting: A Human Model to Study the Development of In-Stent Restenosis
Published on: May 9, 2012
Branch pulmonary artery stenting in children by using premounted stents: Can we benefit from slenderization?
Dhaval R Parekh1, Zvonimir Krajcer1
1Department of Cardiology, Texas Heart Institute, Houston, Texas.
Insights
Stenting pulmonary artery stenosis in children offers immediate relief but requires planned interventions for growth. Advances in stent technology may provide more durable solutions for pediatric patients.
Area of Science:
- Pediatric cardiology
- Interventional cardiology
- Congenital heart disease
Background:
- Branch pulmonary artery stenosis presents significant challenges for stenting in pediatric populations.
- Premounted stent implantation offers immediate hemodynamic improvement in infants with this condition.
Discussion:
- Planned stent interventions are crucial for managing somatic growth and future palliative procedures in children.
- The study highlights the need for tailored approaches considering the unique physiology of pediatric patients.
Key Insights:
- Stenting provides prompt relief of obstruction and improves hemodynamics in infants with branch pulmonary artery stenosis.
- Long-term management necessitates strategic stenting to accommodate growth and subsequent palliative interventions.
Outlook:
- Continued advancements in stent technology, including slenderization and improved delivery systems, hold promise for more durable solutions in pediatric interventions.
- Future research should focus on optimizing stent design and implantation strategies for long-term efficacy in growing children.
Abstract:
Children with branch pulmonary artery stenosis represent a challenging cohort for stenting Premounted stent implantation provides immediate obstruction relief and hemodynamic improvement in infants Planned stent intervention is required to account for somatic growth and next stage palliation in children Continued slenderization of adult coronary and peripheral interventions, stent technology, and delivery systems may allow for more durable solutions in light of patient size.
More Related Videos
Related Concept Videos
Benefits of Self-Esteem
Treatment for Pulmonary Arterial Hypertension: Phosphodiesterase Inhibitors
Among the PDE5 inhibitors, sildenafil (Revatio) stands out as a competitive and selective inhibitor. It operates by elevating cellular levels of cGMP and augmenting signaling through the cGMP-PKG pathway, promoting vasodilation. Upon oral...
Treatment for Pulmonary Arterial Hypertension: Endothelin Receptor Antagonists
ETs are synthesized through a complex sequence of enzymatic steps, primarily involving an enzyme referred to as endothelin-converting enzyme...
Treatment for Pulmonary Arterial Hypertension: Prostacyclin Receptor Agonists
These agonists bind to the IPR receptor situated on the plasma membrane of the pulmonary artery smooth muscle cells. This binding triggers a cascade of reactions known as the GS-AC-cAMP-PKA pathway. This pathway results in the relaxation of smooth muscle...
Treatment for Pulmonary Arterial Hypertension: Oxygen Therapy for Respiratory Failure
Oxygen therapy is vital in increasing and maintaining blood oxygen levels in PAH patients. As a result, it aids in reducing fatigue,...
Treatment for Pulmonary Arterial Hypertension: Receptor Tyrosine Kinase Inhibitors and Calcium Channel Blockers
TKIs, such as imatinib (Gleevec), are particularly effective in tackling the growth and mitogenic factors that become upregulated in PAH patients. These factors contribute to the...

