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Mehmet Yokuşoğlu

Publications and source records attributed to Mehmet Yokuşoğlu.

4 recordsLinked to original sources
PubMed2006

[The value of augmentation index and myocardial performance index obtained from cardiac catheterization pressure recordings in predicting coronary artery disease].

OBJECTIVE: The aim of the study was to determine the relation between some parameters, which can be obtained from cardiac catheterization pressure records, and coronary artery disease. METHODS: The study included 65 patients, in whom coronary angiography was performed by the cardiologists of the study. The parameters could be obtained in 40 patients (59+/-6 years; 28 male), and statistical analysis included the data of these patients. From the pressure recordings, myocardial performance index (MPI), isovolumetric relaxation time (IVRT), isovolumetric contraction time (IVCT), ejection time (ET), augmentation wave amplitude (AW), augmentation wave time (AWT) and augmentation index (AI) were measured manually. Coronary artery disease was defined as the presence of any lesion, without regarding the degree of narrowing. The parameters were evaluated with respect to relation with presence of coronary artery disease (Mann-Whitney U test), relation with risk factors for atherosclerosis (Mann-Whitney U test and Chi square test) and capability of predicting coronary artery disease (area under ROC curve, AUC). Statistical significance was set at 0.05. RESULTS: The presence of coronary artery was significantly related to AI, AWT, AW, IVCT and MPI (p<0.001 for all). The most sensitive parameters for coronary artery disease were AI (sensitivity 94%, AUC -0.846, p<0.001) and AW (sensitivity 94%, AUC -0.848, p<0.001), while the most specific one was AWT (specificity 82%, AUC -0.833, p<0.001). The MPI and IVCT were weakly related with risk factors, while IVRT had stronger relation. The parameters of augmentation wave were significantly related with high density lipoprotein cholesterol, whereas the relation with low density lipoprotein cholesterol was weak. CONCLUSION: The parameters, which are obtained from cardiac catheterization pressure recordings, are related with coronary artery disease. They may be useful for predicting future coronary artery disease especially in patients with normal coronary angiogram. It is useful to add these parameters into the reports of coronary angiograms.

Cardiac Catheterization↗
PubMed2006

[Relationship between coronary risk calculation and distribution of the coronary artery lesions and risk factors].

OBJECTIVES: Early diagnosis and treatment of coronary artery disease is gaining more importance because of its increasing incidence. The calculation of coronary risk score is one of the most important approaches. The aim of the study is to find out the relation between coronary risk score and vessel distribution of the coronary heart disease. METHODS: The study included 49 patients (mean age = 63+/-8 years; 36 males) whose coronary disease was proven by coronary angiography. The severity of the disease is established according to the number of the vessels with >50% stenosis. RESULTS: According to the results; age (p=0.548), gender (p=0.116), uric acid (p=0.091), and smoking (p=0.718) are not effective on diseased vessel distribution. Similarly, total coronary risk score and vessel involvement was not correlated (p=0.115). The ten year coronary risk and vessel involvement was not in good correlation, too (p=0.523). Low-density lipoprotein (LDL)-cholesterol levels were lower in patients with multiple vessel disease but the statistical significance was borderline (p=0.051). High-density lipoprotein (HDL)-cholesterol levels were lower in multiple vessel disease (p=0.004). Both LDL-cholesterol and HDL-cholesterol scores were decreasing with increased number of involved vessels (p=0.035, p=0.001). Multivariate analysis revealed that blood pressure score, and HDL cholesterol score were directly related and LDL-score were inversely related to the number of the involved vessels. The height and vessel involvement was also in good correlation (p=0.024). CONCLUSION: The LDL-cholesterol, HDL-cholesterol, diastolic blood pressure and height are affective on the number of the involved vessels. The total coronary risk scores are not correlated with the severity and distribution of the disease.

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