Biomedical subjects

Mustafa Yildiz

Publications and source records attributed to Mustafa Yildiz.

40 records · Page 3Linked to original sources

PubMed2002

Right ventricular function in patients with acute anterior myocardial infarction: tissue Doppler echocardiographic approach.

OBJECTIVE: Our purpose was to investigate the right ventricular (RV) performance of patients with a first acute anterior myocardial infarction (AAMI) by using pulsed wave Doppler tissue (PWDT) samplings of tricuspid annulus and RV free wall. METHODS AND RESULTS: The study group included 31 patients with AAMI and 20 age-matched controls. Conventional indexes of RV functions were the magnitude of tricuspid annular plane systolic excursion (TAPSE), and the transpulmonary and transtricuspid Doppler parameters. PWDT velocities were obtained by placing the sample volume at the lateral tricuspid annulus and the mid-segment of RV free wall; the peak systolic (S), early (E) and late (A) diastolic PWDT velocities and time intervals from ECG-Q wave to their peaks were analysed. Standard indexes were comparable except TAPSE that was significantly lower in AAMI-patients (p < 0.001). S velocities were similar; A of both regions (p = 0.018 and 0.012) and E of RV free wall (p = 0.011) were significantly increased in AAMI-group. Q-Sa intervals in both regions (p = 0.007 and 0.015) and Q-Ea of tricuspid annulus (p = 0.045) were significantly shorter in patients with AAMI. TAPSE and E of RV free wall had significant negative correlations with left ventricular systolic volume index and right atrial filling fraction (AFF), respectively (r = -0.46, p = 0.01 for both). A of tricuspid annulus had a positive correlation with left AFF (r = 0.42, p = 0.02). CONCLUSION: PWDT imaging of tricuspid annulus and RV free wall is capable to sensitively detect the adaptive mechanisms and unfavourable diastolic properties of RV dynamics in patients with AAMI.

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PubMed2002

[Social skills training in psychosocial therapy of schizophrenia: a multicenter study for symptom management and medication management modules].

OBJECTIVE: It is known that psychosocial skills training programs increase the efficacy of schizophrenia treatment. The aim of this study was to carry out the Turkish version of two modules of a commonly used program, Social Skills Training (Medication Management and Symptom Management Modules), and to determine its possible benefits. METHOD: The study was carried out at three sites. Fifty schizophrenic patients who were at least literate and who did not have language problems or organic mental diseases, aged 18-60, using antipsychotic agents in a standard dose and in a stable phase were included in the study. Eight training groups were formed. Each group consisted of 5-7 individuals and the study took approximately eight months. The Brief Psychiatric Rating Scale, the Quality of Life Scale: an instrument for rating the schizophrenic deficit syndrome, the Drug Treatment Compliance Scale and Pre- and Post-Tests of Social Skills Training were applied to the patients before and after the group education The scores of the rating scales were compared. RESULTS: Thirty-eight (76%) patients completed the study. The mean age of the patients was 32 +/- 7, 84% were men, 58% had received less than 11 years, of education 84% had never married, and 97% were living with their families. The mean age of illness onset was 20 +/- 5 years, and the mean duration of the illness was 12 +/- 7 years. At the end of the study, the Brief Psychiatric Rating Scale scores (baseline 42.0, after the training 37.1, p<0.02), and the Quality of Life Scale scores (baseline 67.5, after the training 75.3, p<0.01) were significantly changed. The level of knowledge of the patients about the medication and symptoms of schizophrenia increased 20.6%. Drug treatment compliance had also increased by the end of the study. CONCLUSION: The results show that this program contributed to the treatment compliance and treatment efficacy in schizophrenia. Increased treatment efficacy might have played a role in increasing of the quality of life a long with the group milieu. It may be concluded that this social skills training program, which did not encounter any problems in application, may contribute significantly to the treatment of schizophrenia.

English Abstract↗

PubMedDate not supplied

Tumour necrosis factor-alpha, interleukin-6, and fasting serum insulin correlate with clinical outcome in metastatic breast cancer patients treated with chemotherapy.

INTRODUCTION: To assess the relationship of various growth factors and cytokines with the clinical outcome in metastatic breast cancer patients receiving chemotherapy. METHODS: Consecutive, metastatic breast cancer patients with measurable disease and receiving palliative chemotherapy were prospectively evaluated for the predictors of progression free survival (PFS) and overall survival (OAS) in relation to serum insulin, insulin resistance, interleukin-6 (IL-6), and tumour necrosis factor-alpha (TNF-alpha). RESULTS: Estrogen receptor (ER) status, serum IL-6 and serum TNF- were the independent determinants of PFS, with RR=0.28 (0.13-0.60), P=0.001, RR=2.48 (1.24-5.61), P=0.012, and RR=0.48 (0.23-1.01), P=0.053, respectively. The factors related with OAS in the multivariate analysis were histological grade (RR=7.88 (2.33-26.62), P=0.001), ER status (RR=0.18 (0.06-0.57), P=0.003), serum insulin (RR=0.87 (0.77-0.97), P=0.016), and serum IL-6 (RR=5.99 (1.89-18.97), P=0.002). CONCLUSIONS: We show for the first time that fasting serum insulin and TNF-alpha levels are independent predictors for OAS and PFS, respectively, in metastatic breast cancer patients. In addition, we also confirm that IL-6 is a poor prognosticator in this group. These results suggest that insulin and TNF-alpha are important biomolecules that may be directly involved in vivo in the progression of metastatic breast cancer.

Adult↗

PubMedDate not supplied

Effect of obesity on coronary collateral vessel development in patients with coronary artery disease.

The purpose of this study was to compare coronary collateral circulation and with other risk factors in patients with coronary artery disease and different body mass index. Between January 1999 and December 2001, of 867 patients who underwent angiography for the first time, 90 patients (24 women and 66 men), with occlusion in only 1 coronary artery participated in the study. Information regarding age, body mass index, sex, smoking, hypertension, diabetes mellitus, hyperlipidemia, preinfarction angina, and use of oral beta blockers and nitrates were recorded for all patients. The patients were separated into 2 groups in accordance with development of their coronary collateral circulation; those with insufficient (Rentrop 0, 1, and 2) and those with sufficient coronary collateral circulation. They were also divided into 3 groups on the basis of body mass index as follows: (I) 18.0-24.9 kg/m(2), (II) 25.0-29.9 kg/m(2), and (III) more than 30 kg/m(2). In the obesity and overweight groups, hyperlipidemia, diabetes mellitus, and nitrate use were identified more frequently than in the other groups (p < 0.05). Use of oral nitrates more than 6 months before the myocardial infarction and existence of preinfarction angina affected collateral coronary vessel development in the positive direction (p = 0.01, p = 0.03, respectively). There was no correlation between coronary artery disease and coronary collateral vessel development in the obese patients (p = 0.6). Although it has been shown that coronary collateral vessel development was affected negatively in obese patients with coronary artery disease, no statistical significance was identified.

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