Key result
Butterfly resection for posterior leaflet prolapse shows zero mortality, reoperations, or SAM.
Why the study?
Does butterfly resection prevent systolic anterior motion and improve outcomes in patients with posterior leaflet prolapse?
Observational (n=29)
Does butterfly resection prevent systolic anterior motion and improve outcomes in patients with posterior leaflet prolapse?
Butterfly resection is a safe and effective novel technique for mitral valve repair in posterior leaflet prolapse, preventing systolic anterior motion with excellent short-term outcomes.
May offer tailored resection for posterior prolapse; hypothesis-generating and requires prospective validation before adoption.
A new design for posterior leaflet resection, "butterfly resection," is proposed. It is a combination of two triangular resections in the prolapsing posterior leaflet segment. This method minimizes resection in the target segment, and it prevents systolic anterior motion by reducing the height of the posterior leaflet according to the amount of excess tissue. We have used this technique for 60.4% (29 of 48) of posterior leaflet prolapse cases with zero hospital mortality and no morbidity. Postbypass transesophageal echocardiography identified no more than mild regurgitation and no sign of systolic anterior motion. During 13.1 ± 6.8 months of follow-up, patients neither died nor needed reoperation.
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Asai et al. (2011) conducted an observational in Posterior leaflet prolapse (n=29). Posterior leaflet butterfly resection was evaluated on Hospital mortality, morbidity, and follow-up survival or reoperation. Posterior leaflet butterfly resection in 29 patients with posterior leaflet prolapse resulted in zero hospital mortality, no systolic anterior motion, and no deaths or reoperations over 13.1 months.
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