June 18, 2008Cardiology in the Young
In situ fracture of stents implanted for relief of pulmonary arterial stenosis in patients with congenitally malformed hearts
Why the study?
What is the incidence and what are the risk factors for in situ fracture of pulmonary arterial stents in patients with congenitally malformed hearts?
Population
120 patients with congenitally malformed hearts who underwent stent placement for pulmonary arterial…
Comparison
Stent placement for pulmonary arterial stenosis vs Unfractured stents
Design
Cohort
Follow-up
at least 3 years
Authors
Discussion
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Member takes
Implication
Alerts clinicians to heightened fracture surveillance near the aorta; leaves open optimal stent selection and follow-up in congenital pulmonary interventions.
Structured PICO
What is the incidence and what are the risk factors for in situ fracture of pulmonary arterial stents in patients with congenitally malformed hearts?
P
Population
120 patients with congenitally malformed hearts who underwent stent placement for pulmonary arterial stenosis and had follow-up catheterization at least 3 years post-placement (total 166 stents).
I
Intervention
Stent placement for pulmonary arterial stenosis
C
Comparator
Unfractured stents (in a matched cohort analysis of 2 fractured to 1 unfractured stent)
O
Outcome
Incidence of stent fracture identified on follow-up angiogramsurrogate
In situ fracture of pulmonary arterial stents is relatively common (21%) and is associated with aortic compression and larger stent diameter, often leading to recurrent obstruction but rarely causing significant complications.
Cite This Study
McElhinney et al. (2008) studied this question.