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    Hemodynamic changes in the early phase of artificially created arteriovenous fistula: Color Doppler ultrasonographic findings
    (Amer Inst Ultrasound Medicine, 1997) Mahmutyazicioglu, K; Kesenci, M; Fitoz, S; Buyukberber, S; Sencan, O; Erden, I
    The objective of this study was to evaluate hemodynamic variables in arteriovenous fistulas by color Doppler ultrasonography. This study involved 28 patients with chronic renal failure who were sent to surgery clinic for creation of an arteriovenous fistula of the Brescia-Cimino type. Patients were evaluated preoperatively and on the first and seventh days postoperatively by a color Doppler ultrasound machine with a 7.5 MHz linear probe. The distal radial artery was examined preoperatively and the fistula itself postoperatively. Changes in the fistula size and the velocity, volume, and resistive index of the distal radial artery were recorded. Postoperatively the radial artery diameter, systolic flow rates, and volume flow had increased significantly, especially on the first day, in comparison to preoperative values. Resistive index values has deceased significantly at both the first and the seventh days postoperatively. Color Doppler ultrasonography is a very effective method in the evaluation of hemodynamics of arteriovenous fistulas in hemodialysis patients. It will allow an understanding of the pathology in nonfunctioning fistulas or of the cause of complications that develop secondarily.
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    Ileus secondary to pancreatic pseudocyst
    (Elsevier Science Inc, 1998) Büyükberber, S; Mahmutyazicioglu, K; Ertas, E; Sencan, O; Sahin, M; Orakçi, V
    Intra- or extrapancreatic pseudocyst is a common local complication in pancreatitis. Pathological involvement of the colon secondary to acute and chronic pancreatitis is a rare complication of major clinical interest. Contiguity with the tail of the pancreas and certain anatomical relationships, particularly at the level of the peritoneal reflections, explain the involvement of, particularly, the left flexure of the colon and the adjacent part of the transverse colon. We report a patient, presenting with ileus resulting from pressure of a giant pseudocyst secondary to acute pancreatitis, to share the diagnostic and chronologic follow-up computed tomography (CT) scanning findings of this rare complication. (C) Elsevier Science Inc., 1998.
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    Serum immunoglobulin E (Ig E) levels after myocardial infarction
    (Acta Cardiologica, 1997) Buyukberber, S; Sencan, O; Buyukberber, N; Tuncer, C; Akyol, O; Turgay, M; Kocakavak, C
    The relation between cardiovascular diseases and serum immunoglobulin E (Ig E) levels has been investigated by different authors. Serum Ig E may play a direct role in The pathogenesis of cardiovascular diseases, or it may only be a marker formed during pathological mechanisms. In this study, we determined serum Ig E levels of patients with unstable angina pectoris and myocardial infarction. Serum Ig E levels of 30 patients with acute myocardial infarction and 20 patients with unstable angina pectoris were deter-mined within the first 6 and 12th hours and on 2nd, 4th, 8th days of the hospitalization and these levels were compared with the serum Ig E levels of normal subjects reserved as control group. As a result, at all measurement hours, serum Ig E levels of acute myocardial infraction group were found to be approximately fourfold increased when compared to those of unstable angina pectoris and those of control group (p<0.001). In the acute myocardial infarction group, no significant differences could he found between the levels of the first 6th and 12th hours nod on the 2nd, 4th, 8th days. Also, no statistically significant difference was found between the serum Ig E levels of unstable angina pectoris and those of control group.