Key result
In high-risk patients, minimally invasive mitral valve surgery without aortic cross-clamp resulted in a 30-day mortality of 4%, which was lower than the STS predicted mortality of 20%.
Why the study?
Does minimally invasive mitral valve surgery without aortic cross-clamp reduce 30-day mortality compared to STS predicted outcomes in high-risk patients?
Population
504 consecutive patients undergoing mitral valve surgery, median age 65 years, 249 males and 255 females…
Comparison
Minimally invasive mitral valve surgery using a… vs Society of Thoracic Surgeons algorithm predicted…
Design
Cohort
Follow-up
30-day
Authors
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May support use in select high-risk patients; leaves open randomized confirmation versus sternotomy.
Cohort (n=504)
Does minimally invasive mitral valve surgery without aortic cross-clamp reduce 30-day mortality compared to STS predicted outcomes in high-risk patients?
Absolute Event Rate: 4% vs 20%
Minimally invasive mitral valve surgery without aortic cross-clamping is safe and reproducible, demonstrating lower-than-predicted 30-day mortality in high-risk patients compared to standard sternotomy estimates.
Petracek et al. (2011) conducted a cohort in Mitral valve disease requiring surgery (n=504). Minimally invasive mitral valve surgery (MIMVS) without aortic cross-clamp vs. STS predicted mortality for standard median sternotomy was evaluated on 30-day mortality in high-risk patients (STS predicted mortality ≥10%). In high-risk patients, minimally invasive mitral valve surgery without aortic cross-clamp resulted in a 30-day mortality of 4%, which was lower than the STS predicted mortality of 20%.
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