title: SAM-systolic anterior motion of the anterior mitral valve leaflet post-surgical mitral valve repair.
abstract: Systolic anterior motion (SAM) is a postoperative complication experienced by patients undergoing mitral valve repair. The incidence of SAM after mitral valve repair ranges from 5 to 10%. Early recognition of the signs and symptoms of SAM is imperative to the management of these patients. This article presents the pathophysiology of mitral valve dysfunction to give the practitioner a clear understanding of the dynamics of SAM. This article's main focus is the detection and management of SAM and the most current treatment modalities. A case study is used to illustrate the complex management necessary for the patient with SAM.
authors.affiliation: Mayo Medical Center, Cardiac Surgery Intensive Care Unit, St. Mary's Hospital, Rochester, Minnesota 55902, USA.
authors.forename: Lynn M
authors.initials: LM
authors.lastname: Charls
mesh_terms: D000368:Aged; D006348:Cardiac Surgical Procedures / Q000009:adverse effects*; D006346:Heart Septum / Q000503:physiopathology; D006801:Humans; D015994:Incidence; D008297:Male; D008943:Mitral Valve / Q000503:physiopathology / Q000601:surgery*; D008944:Mitral Valve Insufficiency / Q000503:physiopathology / Q000601:surgery*; D011183:Postoperative Complications / Q000628:therapy; D012008:Recurrence; D012306:Risk; D013599:Systole / Q000502:physiology*; D014694:Ventricular Outflow Obstruction / Q000209:etiology* / Q000503:physiopathology / Q000628:therapy