December 1, 1994Catheterization and Cardiovascular Diagnosis
Effect of atrial septal occlusion on mitral area after Inoue balloon valvotomy
Why the study?
Does atrial septal occlusion affect calculated mitral valve area and cardiac output after Inoue balloon valvotomy in patients with severe mitral stenosis?
Population
20 patients undergoing mitral dilation (balloon valvotomy) for severe mitral stenosis
Comparison
Postvalvotomy hemodynamic measurement during… vs Postvalvotomy hemodynamic measurement with the…
Design
Cross-sectional
Authors
Discussion
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Member takes
Implication
Septal occlusion may artifactually lower postvalvotomy output and area calculations; leaves open whether echo alone suffices for routine mitral stenosis assessment.
Structured PICO
Does atrial septal occlusion affect calculated mitral valve area and cardiac output after Inoue balloon valvotomy in patients with severe mitral stenosis?
P
Population
20 patients undergoing mitral dilation (balloon valvotomy) for severe mitral stenosis
I
Intervention
Postvalvotomy hemodynamic measurement during atrial septal occlusion with a 7F balloon-tip catheter
C
Comparator
Postvalvotomy hemodynamic measurement with the Inoue balloon catheter across the septum, and without any catheters across the septum
O
Outcome
Calculated mitral valve area and cardiac outputsurrogate
Atrial septal occlusion after Inoue balloon valvotomy results in small but statistically significant decreases in calculated cardiac output and mitral valve area, though measurements with the Inoue catheter in place agree with echo-derived data.
Cite This Study
Levin et al. (1994) studied this question.