Clinical and Stent-Related Outcomes After Transcatheter or Operative Placement of Bare-Metal Stents in the Ventricular Septum or Subvalvar Systemic Outflow Tract
Key result
Bare-metal stent placement in the ventricular septum or subvalvar systemic outflow tract reduced the median ventricular-to-aortic systolic pressure ratio from 1.7 to 1.1 (P<0.001).
Study Design
Type
Observational (n=27)
Structured PICO
P
Population
27 patients with congenital heart disease and ventricular hypertension due to outflow obstruction who underwent bare-metal stent placement, followed for up to 3 years.
E
Exposure
Bare-metal stent placement in the ventricular septum or subvalvar systemic outflow tract via percutaneous (n=18), intraoperative (n=8), or hybrid (n=1) approach
O
Outcome
Safety and efficacy, including incidence of stent fracture and other adverse outcomessafety
Main Result
Absolute Event Rate: 1.1% vs 1.7%
p-value: p=<0.001
While stenting the ventricular septum or systemic outflow tract in congenital heart disease improves hemodynamics in the short term, it is associated with a high rate of stent fracture (41%) leading to recurrent obstruction.
Authors
Discussion
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Implication
Short-term hemodynamic relief from stenting may be offset by high fracture rates; durability requires prospective evaluation.
Cite This Study
Porras et al. (2012) conducted an observational in Congenital heart disease with ventricular hypertension due to outflow obstruction (n=27). Bare-metal stent placement in the ventricular septum or subvalvar systemic outflow tract vs. Pre-intervention baseline was evaluated on Median ventricular-to-aortic systolic pressure ratio (p=<0.001). Bare-metal stent placement in the ventricular septum or subvalvar systemic outflow tract reduced the median ventricular-to-aortic systolic pressure ratio from 1.7 to 1.1 (P<0.001).