Browsing by Author "Bakir, B"

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Biliary Tract Reconstruction With Autologous Rectus Sheath Graft -: an Experimental Study
(H G E Update Medical Publishing S A, 2005) Aydin, M; Bakir, B; Kösem, M; Kisli, E; Gençelep, M
Background/Aims: Common bile duct injuries which cause significant morbidity and mortality are one of the most serious complications of cholecystectomies. They can be repaired by various approaches. Methodology: We used an autologous graft obtained from the posterior sheath of the rectus muscle in biliary tract reconstruction for common bile duct defect. This experimental study was carried out on six dogs. A tissue fragment was excised from the posterior sheath of the rectus muscle together with the fascia transversalis and peritoneum. A channel from the fascial graft was formed around a T-tube. The autologous rectus sheath graft was sutured to the common bile duct as a segmental conduit graft. Afterwards, blood biochemistry values and liver histopathology were investigated. Dogs were studied by T-tube cholangiography 4 months postoperatively just prior to removing the T-tube and again 2 months later at relaparotomy. The hepatic parenchyma, intra- and extrahepatic bile ducts were detected by ultrasonography during the last 2 months, one time in fifteen days. Results: There was no anastomotic insufficiency. The fascial graft gained an appearance similar to bile duct in dogs. Postoperatively, no change in blood biochemical parameters was observed, and in the preoperative and postoperative periods no histopathological change in the liver was Conclusions: These findings indicate that the use of an autologous fascial graft to repair common bile duct injuries as a conduit graft for segmental bile duct loss may be a feasible and alternative method of treatment.
Blood and Tissue Findings in the Diagnosis of Mesenteric Ischaemia: an Experimental Study
(Walter de Gruyter Gmbh, 1998) Aydin, M; Guler, O; Ugras, S; Bakir, B; Sekeroglu, R
In this experimental study, after inducing mesenteric ischaemia in dogs, we investigated routine blood biochemistry, serum malondialdehyde (MDA) levels, histopathological changes and tissue MDA levels in the liver and intestines. The study group included 10 dogs. Six dogs which underwent sham operation served as controls. In the study group, the MDA level in liver tissue increased after superior mesenteric artery (SMA) ligation. Various degrees of necrosis were seen in the ileal biopsies 10 hours after the ligation. Hyperaemia and focal necrosis in the liver accompanied the intestinal necrosis if it was limited within the mucosa. However, massive or centrilobular necrosis was observed in the liver of those dogs which had intestinal necrosis that extended into muscular layers. MDA levels in intestinal tissue measured after SMA ligation were significantly higher than the preligation levels. On the other hand, the difference between serum and tissue MDA levels was not significant. The alterations in MDA were not significant in the sham group. Thus it is concluded that the serum MDA levels are valuable markers of diagnosis in intestinal ischaemia.
The Effects of Fibrin Glue on the Prevention of Adhesion Formation, Leakage and Wound Healing in Dogs
(indian veterinary Journal, 2005) Belge, A; Gulbahar, MY; Bakir, B
Metamizol Induced Anaemia in Dogs
(indian veterinary Journal, 2003) Bakir, B; Belge, F; Belge, A; Tutuncu, M; Ozen, S; Dilek, I
Protection of Intestinal Anastomoses in Septic Environment With Peritoneal Graft and Polyglycolic Acid Mesh: an Experimental Study
(Assoc Soc Scientifique Med Belges, 1996) Dilek, ON; Bakir, B; Dilek, FH; Demirel, H; Yigit, MF
We carried out an experimental study in dogs to evaluate the outcome of large bowel anastomosis with 6 stitches (Group C, n:6) in a septic environment with protection by a polyglycolic acid (PGA) mesh (Group M, n:12) or peritoneal graft (Group P, n:12). Thirty dogs were used to compare the techniques. Two dogs in each group were re-operated after 3, 5, 7, 14, 28 and 90 days. They were evaluated for adhesion formation, lumen diameter (anastomotic index), clinical features, histologic appearance and quality of healing at the anastomotic sites. All dogs in group P and group M survived, whereas 2 dogs in the control group died of anastomotic leakage and 3 dogs were re-operated for anastomotic leakage and peritonitis. In group M, one dog was reoperated because of the anastomotic leakage and two dogs were reoperated because of the anastomotic stenosis. Also, 4 anastomoses showed evidence of moderate stenosis. In group P, three anastomoses were graded as minimal stenosis. Histopathologic evaluation showed more complete epithelization, less inflammation, and less adhesion in group P than group M. We could not find any study in the literature that described and compared both techniques. We report here the results of such a study.
Subclinical Laminitis in Dairy Cattle: 205 Selected Cases
(Tubitak Scientific & Technological Research Council Turkey, 2005) Belge, A; Bakir, B; Gönenci, R; Ormanci, S
The economic importance of lameness in dairy cattle has newly been recognized in Turkey. Lameness incidence in Turkey has been reported to be between 13% and 58%, which is similar to that of other countries where 4% and 55% incidence rates have been reported. The objective of this study was to determine the prevalence of sole lesions associated with subclinical laminitis in the hooves of dairy cattle in Van, Turkey. The risk factors for subclinical laminitis are proposed and discussed. The soles 205 selected dairy cattle were examined. The lesions were determined as solar hemorrhage (61.4%), yellow waxy discoloration (58.5%), heel erosion (23.9%) and white line separation (19%). The sole lesions in cattle were widespread both before and after calving; causative factors must always have been operative. In conclusion, it is thought that husbandry and management are more influential than nutrition in the prevalence of subclinical laminitis in Turkey.
A Technique of Duodenal Cannulation in Sheep
(Elsevier Science Bv, 2002) Belge, A; Bakir, B; Özcelik, A
A single T-shaped duodenal cannula was developed for sheep. The cannula was molded in one piece from a rigid silicone elastomer and inserted into the proximal duodenum of sheep via a 2 cm incision on the antimesenteric side of the intestine. A dacron surgical mesh was connected to the barrel of the cannula. The intestine was wrapped with dacron mesh material. Recovery from surgery was rapid and animals consumed feed and water within a week. No digesta leakage was noticed in sheep. Intestinal blockage and reduced motility did not seem to be a problem based on the feed consumption records. (C) 2002 Elsevier Science B.V. All rights reserved.
Use of Fibrin Glue in Dog Kidney Model
(indian veterinary Journal, 2004) Bakir, B; Odabas, O; Genccelep, M; Kosem, M; Aslan, L
It is difficult to-obtain adequate haemostasis in the presence of friable tissues and coagulopathy as any attempts to control bleeding by the placement of additional sutures may further aggravate the situation. Therefore, to control bleeding, topical haemostatic agents are generally used. In this study, the effect of fibrin glue on controlling bleeding during partial nephrectomy and wound healing has been investigated.
Utilising an Ileal Segment in the Posterior Urethral Replacement Procedures Using Anal Sphincter To Provide Continence in Dogs
(Tohoku Univ Medical Press, 1998) Yilmaz, Y; Aydin, M; Bakir, B; Atilla, MK; Odabas, Ö; Aydin, S
We aimed to replace an ileal segment in the place of posterior urethra using the anal sphincter as a continence mechanism. The experiment was carried on three male street dogs. In the first stage, only urethral replacement with an ileal segment was done and pulled through the anal sphincter in a male dog to see if anal sphincter would do any help for continence. A protruding stoma was created on the perineum. Perineal end of the ileal segment was sutured to the bulbous urethra in the other two male dogs to provide urethral patency in the second step of the operation. The dog in which the first operation was made gained continence on the 12th postoperative day. The other two male dogs, in which ileourethral anastomosis were made, became continent on the postoperative 12th and 15th days. No residual urine was found by catheterisation performed after urination. In controls, neither the stoma nor the anastomosis sites developed stenosis. This procedure may be applied in patients with complete incontinence who can not be corrected by any other surgical procedures, and a very good cosmetic result may be obtained.