title: A novel design of posterior leaflet butterfly resection for mitral valve repair.
abstract: 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.
authors.affiliation: From the Division of Cardiovascular Surgery, Department of Surgery, Shiga University of Medical Science, Otsu, Japan.
authors.forename: Tohru
authors.initials: T
authors.lastname: Asai
authors.forename: Takeshi
authors.initials: T
authors.lastname: Kinoshita
authors.forename: Osamu
authors.initials: O
authors.lastname: Nishimura
authors.forename: Atsushi
authors.initials: A
authors.lastname: Kambara
authors.forename: Tomoaki
authors.initials: T
authors.lastname: Suzuki
authors.forename: Keiji
authors.initials: K
authors.lastname: Matsubayashi