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1Division of Cardiac Critical Care Medicine, Department of Critical Care Medicine, The Hospital for Sick Children, Toronto, Ontario, Canada.
Insights
Pediatric pulmonary vascular disease (PVD) requires tailored diagnosis and management due to complex pathophysiology. Recent evidence highlights advanced imaging and novel interventions for challenging cases, moving beyond standard therapies.
Area of Science:
- Pediatric Cardiology
- Pulmonology
- Critical Care Medicine
Background:
- Pulmonary vascular disease (PVD) is a significant complication in pediatric cardiovascular, pulmonary, and systemic diseases.
- Physiological consequences include pulmonary hypertension and elevated pulmonary vascular resistance, potentially leading to right ventricular failure and circulatory collapse.
- The diverse pathophysiology necessitates individualized diagnostic and management strategies.
Purpose of the Study:
- To review recent evidence on the diagnosis and management of pediatric pulmonary vascular disease.
- To explore current controversies and approaches for common and challenging patient subgroups.
- To discuss the evolving landscape of diagnostic tools and therapeutic interventions.
Main Methods:
- Review of recent scientific literature and clinical evidence.
- Analysis of diagnostic advancements, including echocardiography and cardiac magnetic resonance imaging.
- Evaluation of current and emerging therapeutic strategies for right ventricle afterload reduction.
Main Results:
- Advanced imaging techniques aid in risk stratification and treatment response assessment.
- Standard pharmacological therapies may be overused, ineffective, or harmful in certain pediatric PVD subgroups.
- Novel interventions such as mechanical circulatory support and specialized procedures are being explored for refractory cases.
Conclusions:
- Pulmonary vascular disease in children is heterogeneous, demanding a focus on underlying pathophysiology for effective management.
- Despite progress, much data originates from small, uncontrolled studies requiring cautious interpretation.
- A tailored approach integrating advanced diagnostics and novel therapies is crucial for optimizing outcomes in pediatric PVD.
Purpose Of Review:
Pulmonary vascular disease (PVD) complicates the course of many cardiovascular, pulmonary and other systemic diseases in children. The physiological sequelae (pulmonary hypertension and elevated pulmonary vascular resistance) can overwhelm the right ventricle and lead to circulatory collapse. Despite the common end-point, the preceding pathophysiology is complex and variable and requires a tailored approach to diagnosis and management. In this article, we will review the most recent evidence and explore an approach to current controversies in the diagnosis and management of common or challenging patient subgroups.
Recent Findings:
New methods of interpreting data derived from echocardiography and cardiac magnetic resonance imaging may assist in risk stratification and response to therapy. In specific patient subgroups, standard pharmacological therapies to reduce right ventricle afterload may be overutilized, ineffective and in some cases harmful. In the patient failing pharmacological therapy, new and novel techniques are being explored including temporary extracorporeal mechanical circulatory support, pumpless lung assist devices and novel surgical and catheterization procedures.
Summary:
PVD is a diverse entity, and attention to the underlying pathophysiology is essential for appropriate management. Despite significant advances in our understanding, the majority of data comes from small uncontrolled studies and must be interpreted with caution.
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