Key result
Modified 3-o'clock delivery technique is linked to ~50% less severe coronary overlap in TAVR.
Why the study?
Commissural alignment during TAVR is not consistently achieved, potentially impacting coronary access and reintervention feasibility.
Does a modified 3-o'clock flush port delivery system technique improve commissural alignment and reduce coronary artery overlap compared to the conventional technique in patients undergoing TAVR?
Cohort (n=394)
Yes
Does a modified 3-o'clock flush port delivery system technique improve commissural alignment and reduce coronary artery overlap compared to the conventional technique in patients undergoing TAVR?
Absolute Event Rate: 20.8% vs 41.6%
p-value: p=<0.01
A modified 3-o'clock flush port delivery system technique during Evolut TAVR improves commissural alignment and reduces severe coronary artery overlap compared to the conventional 12-o'clock technique, potentially facilitating future coronary access.
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May facilitate future coronary access after Evolut TAVR; leaves open need for randomized confirmation before practice change.
Tang et al. (2021) conducted a cohort in Transcatheter aortic valve replacement (TAVR) (n=394). Modified 3-o'clock flush port delivery system technique vs. Conventional delivery system insertion technique (flush port at 12 o'clock) was evaluated on Severe overlap of 1 or both coronary arteries (p=<0.01). The modified 3-o'clock flush port delivery system technique significantly reduced severe overlap of one or both coronary arteries compared to the conventional technique (20.8% vs 41.6%, p<0.01).
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