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Öğe Acute myocardial infarction in a patient with essential thrombocythemia treated with glycoprotein IIb/IIIa inhibitor(Sage Publications Inc, 2004) Gül, Ç; Kürüm, T; Demir, M; Özbay, G; Vural, Ö; Iqbal, O; Fareed, JEssential thrombocythemia (ET) rarely causes obstruction of coronary arteries or acute myocardial infarction. Treatment of acute myocardial infarction in patients with ET may be a problem due to the important role of platelets in the pathogenesis of infarction. There is no reported case of acute myocardial infarction with essential thrombocythemia treated with a glycoprotein IIb/IIIa inhibitor. In this report, a 49-year-old woman with essential thrombocythemia, admitted with a diagnosis of acute inferolateral myocardial infarction, was treated with tirofiban, a glycoprotein IIb/IIIa receptor blocker.Öğe Arterial distensibility as determined by carotid-femoral pulse wave velocity in patients with Behcet's disease(Springer, 2005) Kürüm, T; Yildiz, M; Soy, M; Özbay, G; Alimgil, L; Tüzün, BBehcet's disease (BD) is a chronic, multisystem disorder characterized by genital and oral aphthae, skin lesions, uveitis, and tendency to thrombosis. Pulse wave velocity (PWV) is an important factor in determining cardiovascular mortality and morbidity. It is an index of arterial wall stiffness and inversely related to the arterial distensibility. In this study we investigated the arterial distensibility in BD by PWV. We studied 14 patients with BD ( 18 - 44 years old, 10 men) and 28 healthy subjects ( 18 - 39 years old, 21 men) without known cardiovascular disease. Arterial distensibility was assessed by automatic carotid-femoral PWV measurement using the Complior Colson device. PWV is calculated from measurements of pulse transit time and the distance traveled by the pulse between two recording sites, according to the following formula: pulse wave velocity (m/s)= distance (m)/transit time(s). The mean ages, systolic blood pressure, diastolic blood pressure, pulse pressure, heart rate, and PWV of Behcet's disease and control subjects were 32.1 +/- 7.4 vs 27.9 +/- 6.1 years, 112.9 +/- 12.0 vs 108.7 +/- 10.0 mmHg, 72.1 +/- 10.7 vs 67.7 +/- 7.5 mmHg, 40.7 +/- 12.2 vs 41.0 +/- 10.7 mmHg, 74.1 +/- 10.2 vs 77.2 +/- 10.1 bpm, and 8.4 +/- 1.4 vs 8.5 +/- 1.1 m/s, respectively. Differences between all parameters studied were not found to be statistically significant ( p> 0.05). The carotid-femoral PWV, an index of arterial stiffness and a marker of atherosclerosis, is not increased in patients with BD compared with control subjects.Öğe Automatic backscatter analysis of regional right ventricular systolic function using color kinesis in patients with inferior wall acute myocardial infarction(Medimond S R L, 1999) Kürüm, T; Korucu, C; Özçelik, F; Eker, H; Öztekin, E; Özbay, G[Abstract Not Available]Öğe A case of primary anti phospholipid syndrome who developed acute myocardial infarction followed by early-onset pre-eclampsia(Springer-Verlag, 2003) Kürüm, T; Soy, M; Karahasanoglu, E; Özbay, G; Sayin, NC[Abstract Not Available]Öğe Differentiating the infarct-related artery on initial electrocardiogram in single or multi-vessel disease in acute inferior myocardial infarction and evaluating involvement of vessels using correspondence analysis(Westminster Publ Inc, 2005) Kürüm, T; Birsin, A; Özbay, G; Türe, MInitial electrocardiography changes were compared prospectively with the findings of coronary angiography to predict the infarct-related artery (IRA) in cases of single- and multi-vessel disease and to demonstrate the relationship between other coexisting coronary involvements and IRA in patients who presented with acute inferior myocardial infarction (AMI). ST elevations or depressions of at least 1 mm (0.1 mV) were evaluated in the leads 1, aVL, and V-1-V-6. Of the 160 patients hospitalized due to inferior AMI, 153 (96%) underwent coronary angiography using standard methods. The angiograms were screened for stenotic lesions using quantitative coronary angiography to confirm significance, which was considered > 50% vessel lumen diameter reduction. Among single-vessel involvements, the IRA was either the circumflex artery (Cx) or right coronary artery (RCA). In conditions in which IRA was detected as either Cx or RCA, 1-, 2-, and 3-vessel involvements were also detected. Correspondence analysis was performed to show the vessel involvements accompanying IRA. Compared with patients with IRA as RCA, the presence of ST depressions in the leads V-1 or V-2 and aVL were more frequently seen in patients with IRA as Cx (p = 0.000, p = 0.015, respectively). Among all vessel involvements in which IRA was either Cx or RCA, a ST-segment depression in leads V-1 or V-2 (P = 0-000) and aVL (p = 0.000) and a ST-segment elevation in lead 1 (p = 0.005) were considered to be significant for Cx, and a ST-segment depression in lead I for RCA involvement (p=0.010). According to correspondence analysis, the most frequent single-vessel involvement seen in inferior AM] was RCA; when IRA was RCA, a multi-vessel involvement included RCA and Cx; and when IRA was Cx, a single-vessel involvement included the left anterior descending (LAD) artery most frequently, and RCA+LAD less frequently (p = 0.000). In inferior AMI, RCA was the most common IRA; however, the possibility of multi-vessel disease is increased when Cx is found to be the IRA. In patients presenting with inferior AM], the presence of ST-depression in the leads aVL and V1-2 is a sensitive finding that indicates Cx stenosis rather than RCA stenosis and is not affected by coexisting other coronary artery involvements.Öğe Predictive value of admission electrocardiogram for multivessel disease in acute anterior and anterior-inferior myocardial infarction(Futura Publ Co, 2002) Kürüm, T; Öztekin, E; Özçelik, F; Eker, H; Türe, M; Özbay, GBackground: Our aim was to investigate the correlation between admission ECG and coronary angiography findings in terms of predicting the culprit vessel responsible for the infarct or multivessel disease in acute anterior or anterior-inferior myocardial infarction (AMI). Methods: We investigated 101 patients with a diagnosis of anterior AMI with or without ST-segment elevation or ST-segment depression in at least two leads in DII, III, aVF. The patients were classified as those with vessel involvement in the left anterior descending (LAD) coronary artery and patients with multivessel disease. Vessel involvement in LAD + circumflex artery (Cx) or LAD + right coronary artery (RCA) or LAD + Cx + RCA were considered as multivessel disease. Thus, (a) anterior AMI patients with reciprocal changes in inferior leads, (b) anterior AMI patients with inferior elevations, (c) all anterior AMI patients according to the ST-segment changes in the inferior region were analyzed according to the presence of LAD or multivesssel involvement. Results: Presence of ST-segment depression in aVL and V6 was significantly correlated with the presence of multivessel disease in anterior AMI patients with reciprocal changes in the inferior leads (P = 0.005 and P = 0.003, respectively). No statistically significant difference between the leads were detected in terms of ST-segment elevation in predicting vessel involvement in the two groups of anterior AMI patients with inferior elevations, When all the patients with anterior AMI were analyzed, the presence of ST-segment depression in leads aVL, V4, V5 and V6 were significantly associated with the presence of multivessel disease (P = 0.035, P = 0.010, P = 0.011, P = 0.001, respectively). Conclusions: The presence of ST-segmert depression in anterolateral leads in the admission ECG of anterior AMI patients with reciprocal changes in inferior leads was associated with multivessel disease.Öğe Relationship with plasma neurohormones and dyssynchrony detected by Doppler echocardiography in patients undergoing permanent pacemaker implantation(Taylor & Francis Ltd, 2003) Kürüm, T; Yüksel, M; Özbay, G; Söyük, S; Türe, MObjective - To determine whether isovolumic relaxation flow (IRF) and isovolumic contraction flow (ICF) resulted from asynchrony and asynergy due to VVI and DDD pacemakers modulated neurohormones, we measured neurohormone levels in plasma and investigated the characteristics of IRF and ICF using Doppler echocardiography. Methods and results - We studied 11 patients with dual-chamber pacemakers (DDD) and 11 patients, with ventricular inhibiting mode (VVI). All patients underwent Doppler echocardiography of the left ventricle. Atrial natriuretic peptide (ANP), brain natriuretic peptide (BNP), renin and aldosteron were measured. The LV was scanned for the presence of intracavitary flow during the isovolumic relaxation and isovolumic contraction period. The plasma levels of BNP and ANP were significantly lower in DDD mode than in VVI mode (56+/-32 pg/ml vs. 94+/-32 pg/ml, p=0.022 and 98+/-20 pg/ml vs. 134+/-17 pg/ml, p=0.042, respectively). There were no significant differences in the plasma level of renin or aldosteron. VVI mode versus DDD mode increased isovolumic relaxation flow time (129+/-41 vs. 111+/-36 sec, p = 0.020) and isovolumic relaxation flow velocity (50+/-4 vs. 37+/-2 cm/s, p=0.018). A strong relationship between blood ANP and BNP levels and IRF velocity was found in patients with a VVI pacemaker (r: 0.632, p: 0.028; r: 0.528, p: 0.024, respectively). Conclusion - VVI mode has a longer isovolumic relaxation time, isovolumic relaxation flow velocity and has higher ANP and BNP plasma levels than DDD mode. IRF resulting from asynergy and asynchrony in VVI mode pacemakers versus DDD mode pacemakers affects the plasma levels of ANP and BNP compared to renin and alclosteron.