A 68-year-old female patient with previous history of transsphenoidal hypophysectomy operation underwent three-vessel coronary artery bypass graft (CABG) surgery for extensive coronary artery disease. Preoperative neurological examination revealed sequelae visual loss at right temporal visual field. Follow-up Magnetic Resonance Imaging studies showed a residual hypophyseal tumor tissue extending to suprasellar area. No additional pathology was detected in the early postoperative cranial control CT, but aggravation of visual field defect was determined. Coincidently, cranial magnetic resonance imaging (MRI) showed hemorrhage into the tumor tissue. We decided to follow-up the patient who exhibited no additional symptoms and was discharged well on the fifth day due to the signs of resolution of hemorrhage. Follow-up controls of the patient at sixth and twelfth months demonstrated normal hormone levels without any additional clinical complaints. We present preoperative assessment, perioperative anesthesia management, and postoperative clinical follow-up of a patient with a residual hypophyseal tumor
Background/Aim: Temporomandibular disorder (TMD) is an umbrella term and consists of pathological situations about temporomandibular joint (TMJ) internal structure, masticatory muscle and associated structures. Otalgic complaints are included in the group of complaints within TMJ associated structures and are frequently seen with TMD. The aim of this study is to evaluate the magnetic resonance imaging findings (MRI) of patients who had unilateral pain in the preauricular region, diagnosed with vertigo. Material and Methods: The present retrospective and cross-sectional clinical study was carried out on patients presenting with preauricular pain referred to XXX University Faculty of Dentistry Department of Oral and Maxillofacial Surgery between 2018 and 2020. There were 2 groups as vertigo and health groups. MRI findings were the primary predictor variables, while pain was the primary outcome variable, recorded on a visual analog scale (VAS). Results: 120 patients were included in the study. The patients included in both groups are between 19 and 65 years of age and there is no significant statistical difference between mean ages of the groups (p>0.05). The VAS values varies between 6 and 9 in both groups. There is no significant statistical difference between mean VAS values of the groups (p>0.05). On the painful side there is no significant difference between the groups in terms of disc/condyle relation (p>0.05). On the other hand moderate effusion (61.4%) was significantly higher in the healthy group while severe effusion (54%) was significantly higher in the vertigo group (p<0.01). Conclusions: Although both groups had the same pain scale, it was observed that the vertigo group had more dramatic MRI findings in terms of disc/condyle relation and presence of effusion. This study is the first to evaluate the disc/condyle relation and the presence of effusion through MRI in vertigo patients diagnosed with TMD.
Background:The incidence of medication-related osteonecrosis of the jaw has increased with the widespread use of bisphosphonates. Present study aimed to evaluate the effect of pentoxifylline and/or tocopherol alone or in combination, on bisphosphonate-induced osteonecrosis in tooth extracted rat jaw.Methods: 24 rats were randomly assigned to 4 groups and each animal received intraperitoneal zoledronic acid injection 0.06 mg/ kg/week for 3 weeks. Following the zoledronic acid application, the lower right first molars of the rats were extracted on day 22. Starting from the day of tooth extraction animals received intraperitoneal pentoxifylline and/or tocopherol injections. Fourteen days later all rats were sacrificed. RANKL and osteoprotegerin (OPG) in blood were measured, and mandibles were examined histologically. When the inter-group differences were evaluated, the Kruskal Wallis-H Test and the Chi-square analysis were used.Results: Each groups' serum RANKL, OPG and RANKL/OPG levels did not reveal any statistically significant differences. There were no statistically significant differences in terms of bone necrosis, abscess formation, inflammation, osteoblastic/osteoclastic activity, bone cellularity and epithelial integrity.Conclusions: Pentoxifylline and/or tocopherol injections alone or in combination did not have any statistically significant effect on the jaw following tooth extraction in bisphosphonate-induced rat animal model.
The study aims to evaluate the initial public offering performance of Borsa Istanbul companies during the hot and cold periods. The size of the companies, industry concentration and investor optimism are considered in this respect. The study covers the 119 IPOs of various sizes from different industries between 2010 and 2017 just after the global financial crisis. The standard event study methodology is applied. This study has revealed the existence of post-crisis underpricing effects in Turkey. Moreover, the research shows that although low pricing is valid in hot periods, hot and cold markets do not differ significantly from each other in this context. Besides, this study finds that the low price effect exists for small firms, and this effect is more common in hot markets. On the other hand, although there is a relationship between consumer confidence index and low price, no relation with industry concentration was found.
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