Assessment of left-to-right atrial shunting after percutaneous mitral valvuloplasty by transesophageal color Doppler flow-mapping.
Why the study?
Does transesophageal color Doppler flow-mapping effectively detect and track the natural history of left-to-right atrial shunting after percutaneous mitral valvuloplasty?
Population
15 consecutive patients undergoing percutaneous balloon mitral valvuloplasty
Design
Cohort
Follow-up
6 months
Authors
Discussion
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Member takes
Implication
Supports expectant management of most post-PMV shunts; leaves open need for larger prospective studies on clinical sequelae.
Structured PICO
Does transesophageal color Doppler flow-mapping effectively detect and track the natural history of left-to-right atrial shunting after percutaneous mitral valvuloplasty?
P
Population
15 consecutive patients undergoing percutaneous balloon mitral valvuloplasty
I
Intervention
Transesophageal color Doppler flow-imaging performed before and at 1 day, 1 week, 1 month, and 6 months after valvuloplasty
O
Outcome
Presence of left-to-right atrial shunting and diameter of interatrial septal defect over 6 monthssurrogate
Transesophageal color Doppler echocardiography is highly sensitive for detecting iatrogenic left-to-right atrial shunts after percutaneous mitral valvuloplasty, demonstrating that most of these defects spontaneously close or significantly decrease in size within 6 months.
Cite This Study
Yoshida et al. (1989) studied this question.