Aspiration Is Associated with Poor Treatment Response in Pediatric Pulmonary Vein Stenosis

Maria Niccum, Ryan Callahan, Kimberlee Gauvreau, Kathy J. Jenkins

Boston Children’s Hospital and Harvard Medical School.
United States

Children
Children 2021; 8
DOI: 10.3390/children8090783

Abstract
Intraluminal pulmonary vein stenosis is a disease with significant morbidity and mortality, though recent progress has been made using multimodal therapy with antiproliferative agents. The aim of this study was to evaluate the association between aspiration and poor treatment response in patients with intraluminal pulmonary vein stenosis. A retrospective, single-center cohort analysis was performed of patients treated with a combination of imatinib mesylate and multimodal anatomic relief between March 2009 and November 2019. Analysis focused on 2-ventricle patients due to small numbers and clinical heterogeneity of single ventricle patients. Among the 84 patients included, 15 had single ventricle physiology and 69 had 2-ventricle physiology. Among the 2-ventricle group, multivariable analysis revealed that patients with clinical aspiration had nearly five times higher odds of poor treatment response than patients without aspiration (OR 4.85, 95% CI [1.37, 17.2], p = 0.014). Furthermore, male patients had higher odds of poor treatment response than their female counterparts (OR 3.67, 95% CI [1.04, 12.9], p = 0.043). Aspiration is a novel, potentially modifiable risk factor for poor treatment response in pediatric multi-vessel intraluminal pulmonary vein stenosis in patients with 2-ventricle physiology.

Category
Stenosis or Obstruction of Normal Pulmonary Venous Connections
Stenosis or Obstruction of Pulmonary Veins Following Surgical Repair of Anomalous Pulmonary Venous Connections
Patient Factors Influencing the Onset, Severity or Outcome of Disease
Multidisciplinary Care
Medical Therapy to Prevent or Reverse the Onset of Disease. Efficacy or Lack of Efficacy
Medical Therapy to Prevent Progression of Disease. Efficacy or Lack of Efficacy
Medical Therapy to Prevent Recurrence of Disease after an Intervention. Efficacy or Lack of Efficacy
Catheter-mediated Interventions: Efficacy or Lack of Efficacy
Surgical Interventions for Pulmonary Venous Obstruction After the Onset of Disease 

Year of Publication: 2021

Age Focus: Pediatric

Article Type: Retrospective Observational Cohort Studies (>10 patients)

Article Access: Free PDF File or Full Text Article Available Through PubMed or DOI: Yes