We have demonstrated the decreased FFR in the patients with SCF. Decreased FFR levels have been attributed to increased resistance in the epicardial coronary arteries due to diffuse atherosclerotic disease which has been demonstrated by IVUS.

The precise pathogenetic mechanism(s) of rheumatic fever and rheumatic heart disease have never been defined. C-reactive protein (CRP) is increased in patients with acute rheumatic fever, but it is not known whether plasma levels increase in patients with chronic rheumatic valve disease. The aim of this study was to determine the role of inflammation detected by high sensitivity CRP (hs-CRP) levels in the progression of chronic rheumatic valve disease. A total of 113 patients with chronic rheumatic valve disease (81 women, 32 men; mean age 40"14 years, range 13-70), 51 patients with prosthetic valve(s) (31 women, 20 men; mean age 48"13 years, range 21-71) and 102 healthy subjects (68 women, 34 men, mean age 41"12 years, range 25-73), as a control group, were assessed. Patients with acute rheumatic fever, acute infection, inflammatory disease, malignancy, acute myocardial infarction and trauma were excluded. hs-CRP was determined using latex-enhanced immunonephelometric assays on a BN II analyzer (Behring). Transthoracic echocardiography was performed in all patients in order to evaluate valvular disease. Levels of hs-CRP were significantly higher in patients with chronic rheumatic heart disease than in patients with prosthetic valve(s) and healthy subjects (0.62"0.64 vs. 0.35"0.41 vs. 0.24"0.18 mgyl, P-0.01 and P-0.001 respectively). No correlation was observed between CRP and age, sex or functional capacity. We found that hs-CRP is increased in chronic rheumatic heart disease; this may indicate that inflammatory response still persists in the chronic phase.

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Coronary artery disease (CAD) is the leading cause of morbidity and mortality in the world, and cigarette smoking is a major contributing factor to the disease. Glutathione S-transferase (GST) enzyme is implicated in the detoxification of carcinogens present in tobacco smoke and consequent polymorphisms in this gene may confer susceptibility to cardiovascular disease if DNA damage is important in CAD. Therefore, we examined this question in a case-control study of subjects having coronary atheroma by angiography and with a past history of myocardial infarction (MI). The study population consists of 247 healthy controls and 148 consecutive patients who had undergone coronary angiography for suspicion of coronary artery disease. DNA was extracted from whole blood, and the GSTM1 and GSTT1 polymorphisms were determined using a real-time polymerase chain reaction (PCR). We found that the null GSTM1 and GSTT1 genotypes were associated with an increase in the risk of developing coronary heart disease (OR = 1.14; 95% CI: 0.71 - 1.82; OR = 1.38; 95% CI: 0.82 - 2.32), respectively, but this increase was not significant. Patients who smoke having the null genotypes of GSTM1 (OR: 1.63 (1.10 - 2.63)) and GSTT1 (2.66 (1.50 - 4.72)) and both (3.20 (1.37 - 7.45)) were at a higher risk for developing coronary heart disease. In conclusion, the finding of a significant association between GSTM1 and T1 with smoking status may influence cardiovascular disease via DNA damage.

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The purpose of this study was to determine the role of red cell distribution width (RDW), neutrophil-lymphocyte ratio (NLR), and platelet-lymphocyte ratio (PLR) in the diagnostic phase of acute pulmonary embolism (PE). We screened 248 consecutive patients who were admitted to the emergency service with PE foremost in the differential diagnosis. Based on spiral computed chest tomography, the patients were divided into two groups. There were 112 confirmed cases of acute PE and 138 patients without PE. Blood samples were obtained within 2 hours of presentation and before starting any medication. There were no significant differences between the PE and the non-PE groups with respect to sex, age, frequency of disease, serum creatinine, sodium, and potassium (p > 0.05 for all). NLR, RDW, and PLR were higher in patients with PE than those without PE. High-sensitivity C-reactive protein, D-dimer, and troponin levels were also higher in patients with PE. RDW values were positively correlated with troponin levels (r = 0.147, p = 0.021). There were no correlations between RDW and NLR, PLR, or D-dimer. NLR had a highly positive correlation with PLR (r = 0.488, p < 0.001). In multivariate logistic regression analysis, troponin I, D-dimer, high-sensitivity C-reactive protein, and RDW were found to be independent predictors of PE [odds ratio (95% confidence interval) respectively: 5.208 (2.534-10.704), 1.242 (1.094-1.409), 1.005 (1.000-1.010), 1.175 (1.052-1.312)]. In receiver operating characteristic analysis of the patients in the study, RDW >18.9 predicted acute PE with a sensitivity of 20.7% and a specificity of 93.4%. In conclusion, RDW can be considered useful as a diagnostic measure for patients with suspected acute PE.

The present study demonstrated that in patients with CSF, both increased plasma ET-1, decreased plasma NOx and diffuse atherosclerosis may cause the decrease in HRV by effecting myocardial blood flow.