TY - JOUR
T1 - Ischemic mitral regurgitation and risk of heart failure after myocardial infarction
AU - Aronson, Doron
AU - Goldsher, Noa
AU - Zukermann, Robert
AU - Kapeliovich, Michael
AU - Lessick, Jonathan
AU - Mutlak, Diab
AU - Dabbah, Salim
AU - Markiewicz, Walter
AU - Beyar, Rafael
AU - Hammerman, Haim
AU - Reisner, Shimon
AU - Agmon, Yoram
PY - 2006/11/27
Y1 - 2006/11/27
N2 - Background: The development of ischemic mitral regurgitation (MR) after myocardial infarction may impose hemodynamic load during a period of active left ventricular remodeling and promote heart failure (HF). However, few data are available on the relationship between ischemic MR and the long-term risk for HF. Methods: We prospectively studied 1190 patients admitted for acute myocardial infarction. Mitral regurgitation was assessed by echocardiography and was considered mild, moderate, and severe when the regurgitant jet area occupied less than 20%, 20% to 40%, and greater than 40% of the left atrial area, respectively. The median duration of follow-up was 24 months (range, 6-48 months). Results: Mild and moderate or severe ischemic MR was present in 39.7% and 6.3% of patients, respectively. After adjusting for ejection fraction and clinical variables (age, sex, Killip class, previous infarction, hypertension, diabetes mellitus, anterior infarction, ST-elevation infarction, and coronary revascularization), compared with patients without MR, the hazard ratios for HF were 2.8 (95% confidence interval [CI], 1.8-4.2; P<.001) and 3.6 (95% CI, 2.0-6.4; P<.001) in patients with mild and moderate or severe ischemic MR, respectively. The adjusted hazard ratios for death were 1.2 (95% CI, 0.8-1.8; P=.43) and 2.0 (95% CI, 1.2-3.4; P=.02) in patients with mild and moderate or severe MR, respectively. Conclusions: There is a graded independent association between the severity of ischemic MR and the development of HF after myocardial infarction. Even mild ischemic MR is associated with an increase in the risk of HF.
AB - Background: The development of ischemic mitral regurgitation (MR) after myocardial infarction may impose hemodynamic load during a period of active left ventricular remodeling and promote heart failure (HF). However, few data are available on the relationship between ischemic MR and the long-term risk for HF. Methods: We prospectively studied 1190 patients admitted for acute myocardial infarction. Mitral regurgitation was assessed by echocardiography and was considered mild, moderate, and severe when the regurgitant jet area occupied less than 20%, 20% to 40%, and greater than 40% of the left atrial area, respectively. The median duration of follow-up was 24 months (range, 6-48 months). Results: Mild and moderate or severe ischemic MR was present in 39.7% and 6.3% of patients, respectively. After adjusting for ejection fraction and clinical variables (age, sex, Killip class, previous infarction, hypertension, diabetes mellitus, anterior infarction, ST-elevation infarction, and coronary revascularization), compared with patients without MR, the hazard ratios for HF were 2.8 (95% confidence interval [CI], 1.8-4.2; P<.001) and 3.6 (95% CI, 2.0-6.4; P<.001) in patients with mild and moderate or severe ischemic MR, respectively. The adjusted hazard ratios for death were 1.2 (95% CI, 0.8-1.8; P=.43) and 2.0 (95% CI, 1.2-3.4; P=.02) in patients with mild and moderate or severe MR, respectively. Conclusions: There is a graded independent association between the severity of ischemic MR and the development of HF after myocardial infarction. Even mild ischemic MR is associated with an increase in the risk of HF.
UR - http://www.scopus.com/inward/record.url?scp=33751514934&partnerID=8YFLogxK
U2 - 10.1001/archinte.166.21.2362
DO - 10.1001/archinte.166.21.2362
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C2 - 17130390
AN - SCOPUS:33751514934
SN - 0003-9926
VL - 166
SP - 2362
EP - 2368
JO - Archives of Internal Medicine
JF - Archives of Internal Medicine
IS - 21
ER -