The importance of the anatomy of the splenic artery and its branches in splenic artery embolisation

Splenic artery embolisation can be performed preoperatively in an attempt to decrease thrombocyte destruction, or as an alternative to surgery, to obtain partial or total organ ablation. During this procedure, it is very important to deliver embolising agents distal to the origin of pancreatic branches to avoid the risk of pancreatitis. Therefore, a detailed knowledge of the anatomy of the splenic artery and its branches is required to achieve safe embolisation. The purpose of our study is to measure the average distance between the origin of the last pancreatic branch and the splenic hilum in digital angiograms and cadaver specimens

Repair of calcified left ventricular pseudoaneurysm of long duration

Cardiac pseudoaneurysm is a contained rupture of the myocardium limited by pericardial adhesions or the epicardial wall. Cardiac pseudoaneurysm may cause sudden death with a mortality of 30-45% in the first year, mostly resulting from rupture. Coronal and axial T2-weighted magnetic resonance images of a 65-year-old male patient admitted with dyspnoea, coughing and chest pain, present for the last 10 days, revealed a large pseudoaneursym of the left ventricle. Coronary bypass and left ventricular restoration operation was performed. The patient was eventlessly discharged 8 days after operation. He is in NYHA Class I 21 months postoperatively. The interval between myocardial insult and establishment of diagnosis is unknown in our patient. This is a patient whose left ventricular rupture had been contained for a very long time, possibly years, because a heavily calcified thick pseudoaneurysm wall was encountered during operation, making this case rare in the literature

Radiological screening of abdominal aortic aneurysm in individuals over 65

Objective: The aims of this study were to determine the prevalence of AAA in aged 65 years and above that had been referred for US screening, the association between risk factors for atherosclerosis and AAA, and the effectiveness of screening a population aged 65 years and above with atherosclerosis risk factors using ultrasound (US). Methods: Patients 65 years and over who had undergone US examination for any reason were invited to participate. The 600 patients (335 male, 265 female) who agreed to participate completed a survey of atherosclerosis risk factors. Aneurysm levels in patients with infrarenal or suprarenal AAA were measured using US. Statistical analysis was performed to identify the relationship between AAA and several atherosclerosis risk factors. Results: Of the 600 patients, 35 (5.8%; 33 male and 2 female) patients were diagnosed with AAA. Males and females represented 94.3% and 5.7% of the AAA-diagnosed population, respectively, and 5.5% and 0.3% of the screened population, respectively. Thirty of the AAA-diagnosed patients (85.7%) were between 65 and 79 years and 5 (14.3%) 80 years and above. A significant relationship was found between AAA and advanced age, male sex, smoking, and coronary artery disease and an inverse relationship between AAA and diabetes mellitus (p<0.05). Conclusion: Individuals age 65 and over with atherosclerotic risk factors for AAA should be screened to prevent possible rupture. Performance of US in radiology clinics is an effective means of identifying these patients

Testing the relationship between free cash flow and company performance in Borsa Istanbul

This study tests whether free cash flow affects the performance of firms in the context of the free cash flow hypothesis. The study applies a panel regression method to a data set consisting of 2,175 observations belonging to 370 companies listed in Borsa Istanbul during the period 2009-2015. A significant, negative relationship is found between free cash flow and firm performance measured by Tobin’s Q ratio. Greater free cash flow in the hands of managers leads to the lower performance and, conversely, less free cash flow in the hands of managers leads to higher performance. The results also confirm that leverage and dividend payments have a positive effect on performance. Thus, the results support the free cash flow hypothesis for Turkey

Electrochemical study of tricarbonyl(eta(6)-cyclooctatetraene)metal(0) complexes of the group 6 elements

Tricarbonyl(eta(6)-cyclooctatetraene)metal(0) complexes of the group 6 elements were prepared by using the procedures described in the literature with some minor modifications and identified by IR and NMR spectroscopy. Their electrochemical behavior was studied by using cyclic voltammetry in dichloromethane solution containing 0.1 M tetrabutylammonium tetrafluoroborate as supporting electrolyte. Their oxidation and reduction potentials were measured and discussed in terms of the frontier energy levels in connection with the UV-Visible electronic absorption spectral data. In order to elucidate the mechanism of electrooxidation of the complexes, constant potential electrolysis was performed for one representative example, tricarbonyl(eta(6)-cyclooctatetraene)chromium(0). The IR monitoring of the reaction showed that it is gradually converted to hexacarbonylchromium(0) upon electrolysis at constant potential