2005 Volume 69 Issue 2 Pages 211-215
Background The genetic influence on the myocardial performance index is uncertain, so the aim of the present study was to determine the effects of polymorphism of the angiotensin-converting enzyme (ACE) gene on the right ventricular myocardial performance index (RVMPI) after a first acute anterior myocardial infarction (MI). Methods and Results The subjects were 116 patients with a first acute anterior MI. Based on the polymorphism of the ACE gene, they were classified into 3 groups: deletion/deletion (DD) genotype (group 1, n=45), insertion/deletion (ID) genotype (group 2, n=58), insertion/insertion (II) genotype (group 3, n=13). Echocardiograms were used to determine the RVMPI, left ventricular myocardial performance index (LVMPI), tricuspid E/A, tricuspid deceleration time and the left ventricular diameter diastolic and diameter systolic (LVDd and LVDs). RVMPI and LVMPI were significantly higher in the ACE DD group. Tricuspid E/A, DT, LVDd and LVDs showed no differences among the 3 groups. Conclusion The ID polymorphism of the ACE gene may affect RVMPI and LVMPI after a first acute anterior MI. (Circ J 2005; 69: 211 - 215)
