TY - JOUR
T1 - Systolic anterior motion after mitral valve repair
T2 - Is surgical intervention necessary?
AU - Brown, Morgan L.
AU - Abel, Martin D.
AU - Click, Roger L.
AU - Morford, Ronald G.
AU - Dearani, Joseph A.
AU - Sundt, Thoralf M.
AU - Orszulak, Thomas A.
AU - Schaff, Harzell V.
PY - 2007/1
Y1 - 2007/1
N2 - Objective: The natural history and management of patients with systolic anterior motion after mitral valve repair are uncertain. Methods: We performed a retrospective chart review and survey follow-up of all patients in whom systolic anterior motion developed intraoperatively after mitral valve repair. Results: From January 1993 to December 2002, mitral valve repair was performed in 2076 patients, and in 174 cases (8.4%) systolic anterior motion was identified on intraoperative echocardiography. These patients form the study group. Initially, patients were managed with a combination of β-blockade, vasoconstriction with phenylephrine, and/or intravascular volume expansion. Four patients had revision of repair because of persistent systolic anterior motion, and 3 additional patients had revision of repair because of mitral regurgitation from other causes. The median follow-up of the remaining 167 patients was 5.4 years (range 0-13.2 years). There were 2 late reoperations, but none were caused by systolic anterior motion or left ventricular outflow tract obstruction. Ninety percent of patients were in New York Heart Association class I, 7% were in class II, and 3% were in class III or IV. Echocardiograms were available for review in 93 patients at a median interval of 5.4 years (range 0.2-12.2 years); 13 patients had systolic anterior motion, and 4 patients had systolic anterior motion with left ventricular outflow tract obstruction. Conclusions: In this experience, most cases of systolic anterior motion resolved with conservative measures including β-blockade, vasoconstriction, and fluid administration. Persistent systolic anterior motion with left ventricular outflow tract obstruction was documented in 2.3% of patients who had early systolic anterior motion, but late reoperation was not required. Furthermore, the clinical outcomes of patients with systolic anterior motion are comparable to the current norms for mitral valve repair. Ninety percent of patients were in New York Heart Association class I, 7% were in class II, and 3% were in class III or IV.
AB - Objective: The natural history and management of patients with systolic anterior motion after mitral valve repair are uncertain. Methods: We performed a retrospective chart review and survey follow-up of all patients in whom systolic anterior motion developed intraoperatively after mitral valve repair. Results: From January 1993 to December 2002, mitral valve repair was performed in 2076 patients, and in 174 cases (8.4%) systolic anterior motion was identified on intraoperative echocardiography. These patients form the study group. Initially, patients were managed with a combination of β-blockade, vasoconstriction with phenylephrine, and/or intravascular volume expansion. Four patients had revision of repair because of persistent systolic anterior motion, and 3 additional patients had revision of repair because of mitral regurgitation from other causes. The median follow-up of the remaining 167 patients was 5.4 years (range 0-13.2 years). There were 2 late reoperations, but none were caused by systolic anterior motion or left ventricular outflow tract obstruction. Ninety percent of patients were in New York Heart Association class I, 7% were in class II, and 3% were in class III or IV. Echocardiograms were available for review in 93 patients at a median interval of 5.4 years (range 0.2-12.2 years); 13 patients had systolic anterior motion, and 4 patients had systolic anterior motion with left ventricular outflow tract obstruction. Conclusions: In this experience, most cases of systolic anterior motion resolved with conservative measures including β-blockade, vasoconstriction, and fluid administration. Persistent systolic anterior motion with left ventricular outflow tract obstruction was documented in 2.3% of patients who had early systolic anterior motion, but late reoperation was not required. Furthermore, the clinical outcomes of patients with systolic anterior motion are comparable to the current norms for mitral valve repair. Ninety percent of patients were in New York Heart Association class I, 7% were in class II, and 3% were in class III or IV.
UR - http://www.scopus.com/inward/record.url?scp=33845758071&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33845758071&partnerID=8YFLogxK
U2 - 10.1016/j.jtcvs.2006.09.024
DO - 10.1016/j.jtcvs.2006.09.024
M3 - Article
C2 - 17198799
AN - SCOPUS:33845758071
SN - 0022-5223
VL - 133
SP - 136
EP - 143
JO - Journal of Thoracic and Cardiovascular Surgery
JF - Journal of Thoracic and Cardiovascular Surgery
IS - 1
ER -