ACE gene insertion/deletion polymorphism has a mild influence on the acute development of left ventricular dysfunction in patients with ST elevation myocardial infarction treated with primary PCI

<p>Abstract</p> <p>Background</p> <p>We evaluated the associations among angiotensin-converting enzyme (ACE) gene insertion/deletion (I/D) polymorphism, ACE activity and post-myocardial infarction (MI) left ventricular dysfunction and acute heart failure (AHF) early after presentation with MI with ST-segment elevation (STEMI).</p> <p>Methods</p> <p>A total of 556 patients with STEMI treated by primary PCI (421 patients without AHF and 135 patients with AHF) were the study population. The activity of BNP, NT-ProBNP and ACE were measured at hospital admission and 24 h after MI onset. Left ventricular angiography was done before PCI; echocardiography was undertaken between the third and fifth day after MI.</p> <p>Results</p> <p>In comparison with the II genotypes group, the DD/ID group had a higher level of ACE activity upon hospital admission (p < 0.001). We found a significantly higher level of ACE activity in patients with moderate LV dysfunction (EF 40-54%) in comparison both with patients with preserved LV function (EF ≥55%) and with patients with severe LV dysfunction (p = 0.028). A non-significant trend towards a higher incidence of mild AHF (22.1% vs. 16.02%, p = 0,093), a significantly higher value of end-systolic volume (ESV/BSA) (30.0 ± 12.3 vs. 28.5 ± 13.0; p < 0.05) and lower EF (50.2 ± 11.1 vs. 52.7 ± 11.7; p < 0.05) in the DD/ID genotypes group was noted. Even after multiple adjustments according to multivariate models, the EF for the DD/ID group remained significantly lower (p = 0,033). The DD/ID genotypes were associated with a significantly higher risk of EF <45% (OR 2.04 [95% CI 1.28; 3.25]).</p> <p>Conclusions</p> <p>These results suggest that the I/D polymorphism of ACE is associated with the development of LV dysfunction in the acute phase after STEMI. We demonstrated for the first time an association of the low ACE activity with the severe LV dysfunction, although patients with moderate LV dysfunction had higher level ACE activity than patients with preserved LV function.</p

GRACE Score among Six Risk Scoring Systems (CADILLAC, PAMI, TIMI, Dynamic TIMI, Zwolle) Demonstrated the Best Predictive Value for Prediction of Long-Term Mortality in Patients with ST-Elevation Myocardial Infarction.

To compare the prognostic accuracy of six scoring models for up to three-year mortality and rates of hospitalisation due to acute decompensated heart failure (ADHF) in STEMI patients.A total of 593 patients treated with primary PCI were evaluated. Prospective follow-up of patients was ≥3 years. Thirty-day, one-year, two-year, and three-year mortality rates were 4.0%, 7.3%, 8.9%, and 10.6%, respectively. Six risk scores--the TIMI score and derived dynamic TIMI, CADILLAC, PAMI, Zwolle, and GRACE--showed a high predictive accuracy for six- and 12-month mortality with area under the receiver operating characteristic curve (AUC) values of 0.73-0.85. The best predictive values for long-term mortality were obtained by GRACE. The next best-performing scores were CADILLAC, Zwolle, and Dynamic TIMI. All risk scores had a lower prediction accuracy for repeat hospitalisation due to ADHF, except Zwolle with the discriminatory capacity for hospitalisation up to two years (AUC, 0.80-0.83).All tested models showed a high predictive value for the estimation of one-year mortality, but GRACE appears to be the most suitable for the prediction for a longer follow-up period. The tested models exhibited an ability to predict the risk of ADHF, especially the Zwolle model

Predictive accuracy of scoring models for rehospitalisation due to ADHF during a three-year follow-up period.

<p>Predictive accuracy of scoring models for rehospitalisation due to ADHF during a three-year follow-up period.</p

Risk-scoring models and their components.

<p>*Recurrent MI, stroke, major bleed, CHF/shock, arrhythmia, renal failure.</p><p>BP—blood pressure, LBBB—left bundle branch block; PCI—percutaneous coronary intervention.</p><p>Risk-scoring models and their components.</p

Baseline characteristics of patients and medical therapy upon hospital admission.

<p>*Recurrent MI, stroke, major bleed, CHF/shock, arrhythmia, renal failure;</p><p>MI—myocardial infarction, ACEI—angiotensin-converting enzyme inhibitor, ARB—angiotensin II receptor blockers, PCI—percutaneous coronary intervention, CABG—coronary artery bypass grafting, TIA—transient ischaemic attack, AHF—acute heart failure.</p><p>Baseline characteristics of patients and medical therapy upon hospital admission.</p

Landmark analyses of mortality after STEMI.

<p>Landmark analyses of mortality after STEMI.</p

Characteristics of laboratory tests and invasive procedures.

<p>IRA—infarct-related artery, LAD—left anterior descending artery, CABG—coronary artery bypass graft, RCA—right coronary artery, RPLD—ramus posterolateral dexter, RIVP—ramus interventricularis posterior, RCx—ramus circumflexus, RMS—ramus marginalis sinister, RIM—ramus intermedius, RD—ramus diagonalis, BNP—brain natriuretic peptide, LVEF—left ventricular ejection fraction.</p><p>Characteristics of laboratory tests and invasive procedures.</p

Cumulative occurrence of mortality and repeat hospitalisation for ADHF over time.

<p>Cumulative occurrence of mortality and repeat hospitalisation for ADHF over time.</p

Predictive accuracy of scoring models for mortality during a three-year follow-up period.

<p>Predictive accuracy of scoring models for mortality during a three-year follow-up period.</p