Visfatin as marker of isolated coronary artery ectasia and its severity.

Several studies have demonstrated the relationship between visfatin and increased risk of diseases caused by inflammation, however, the relationship between visfatin and coronary artery ectasia (CAE) is still unknown. The aim of our study is to investigate the association between serum visfatin with presence of coronary ectasia and its severity. We enrolled 85 individuals including 35 CAE patients (mean age: 58.40 ±â€¯9.82 years) and 50 control persons (mean age: 53.24 ±â€¯8.81 years). These participants underwent some biochemical tests including visfatin, fasting blood glucose and lipid profiles. In univariate analysis, the serum level of visfatin was significantly associated with ectasia in all patients with CAE and CAD coexisting with CAE groups, but a trend toward significance in isolated CAE group. In multivariate analysis, visfatin showed independently significant association with presence of ectasia in all patients with ectasia and in CAD coexisting with ectasia groups, but not significant in isolated CAE group. Visfatin was also independently associated with severity of ectasia according to MARKIS classification. We conclude that visfatin independently can be the useful predictor for the presence and severity of coronary ectasia.

Ratio of Serum Aspartate to Alanine Aminotransferase as a Marker of Isolated Coronary Artery Ectasia and its Severity.

BACKGROUND: Several studies have reported an association between elevated liver enzymes and increased risks for developing inflammatory diseases. The aim of our study was to examine how serum liver transaminases, as inexpensive and routinely measured markers, and the De Ritis ratio are associated with the presence of coronary artery ectasia (CAE) and its severity. METHODS: Participants were recruited from patients admitted to Tehran Heart Center for diagnostic coronary angiography due to suspected myocardial ischaemia. These participants also underwent concurrent laboratory routine biochemical and liver enzyme tests. RESULTS: A total of 104 participants were included; 59 had CAE and 45 were controls without coronary artery disease (CAD). The CAE group was split into a further two subgroups: those with isolated CAE (n=27) and those with CAD and coexisting CAE (n=32). In the adjusted multivariate analysis, a lower ratio of aspartate aminotransferase to ALT (AST/ALT) was, uniquely among the variables, a statistically significant marker for isolated CAE. In the CAD + CAE group, the AST/ALT ratio was not significant after adjustments for the confounding factors. The multivariate linear regression for the Markis score showed that the AST/ALT ratio was inversely associated with the severity of CAE. CONCLUSIONS: We conclude that the AST/ALT ratio and, to some extent, ALT independently of other inflammatory factors, can be associated with the presence and severity of isolated CAE.

Effects of a Cardiac Rehabilitation Program Versus Usual Care on Cardiopulmonary Function in Patients With Cardiac Syndrome X.

PURPOSE: Because of uncertainty in the pathophysiological process, the treatment of cardiac syndrome X (CSX) is still under study. Addressing the effects of cardiac rehabilitation (CR) can help promote the prescription of this modality as an adjuvant therapy for these patients. METHODS: This study was performed on 30 patients with effort-induced angina pectoris using a positive exercise test and/or myocardial perfusion scan in the absence of obvious stenosis or a stenosis of <50% on coronary angiography. The patients were divided into the CR and usual care (UC) groups and underwent cardiopulmonary exercise testing with gas exchange analysis before and after the study. The Duke Treadmill Score was used to compare prognosis and survival estimates of patients. RESULTS: An increase in peak oxygen uptake ((Equation is included in full-text article.)O2) was significantly higher in the CR group than in the control group (P = .017). Resting (Equation is included in full-text article.)O2 was also increased in the CR group, but its difference with the UC group was not statistically significant. Resting O2 pulse was increased in the CR group, which significantly differed between groups (P = .041). Exercise test duration and the Duke Treadmill Score significantly increased in the CR group as compared with the UC group (P = .003 and P = .002, respectively). Also, recovery heart rate in the first minute was significantly improved in CR group. CONCLUSION: Adding a 4-wk course of CR to UC for patients with CSX not only increased the Duke Treadmill Score and exercise test duration but also improved the resting O2 pulse, peak (Equation is included in full-text article.)O2, and first-minute recovery heart rate.

Objectifying the level of incomplete revascularization by the residual SYNTAX score and evaluating its impact on the one-year outcome of percutaneous coronary intervention in patients with multi-vessel disease.

BACKGROUND: Previous studies reported conflicting results regarding the impact of incomplete revascularization on the outcome of percutaneous coronary intervention (PCI). We evaluated the association between residual SYNTAX score (RSS) as a quantitative measure of incomplete revascularization and one-year outcome of patients with native multi-vessel disease undergoing PCI. METHODS: A total of 760 patients (mean age=59.14±10.36years, 70.4% males) who underwent successful PCI with the incomplete revascularization strategy between September 2008 and March 2010 were included. The RSS was used to quantify the extent and complexity of residual coronary stenosis following PCI. Multivariable analysis was used to evaluate the impact of RSS on one-year major adverse cardiac events (MACE) including death, myocardial infarction, and revascularization. RESULTS: Overall incidence of one-year MACE was 4.74%. Using ROC curve analysis a cut-off of >5 for baseline RSS had a significant association with occurrence of 12-month MACE (area under the curve=0.769; P value<0.001, sensitivity =75% and specificity=72%). Unadjusted effect of RSS>5 on 12months MACE showed a hazard ratio of 7.34 (p value<0.001). By multivariable analysis, effect of the RSS>5 on 12months MACE was adjusted for potential confounders. After adjustment to clinical SYNTAX score as the sole confounder, RSS>5 remained a strong associate with 12months MACE and its effect outweighed that of before adjustment (hazard ratio=8.03, p value<0.001). CONCLUSIONS: The RSS is a quantified measure of the complexity of residual coronary stenoses, and RSS>5 could be able to discriminate patients with an increased risk of one-year MACE.