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排序方式: 共有2378条查询结果,搜索用时 15 毫秒
71.
The aim of this investigation was to compare the traditional method of manual cephalometric tracing with four different computerized tracing programs, where the lateral cephalograms were scanned at 300 dpi and digitized onscreen. Thirty randomly selected cephalometric radiographs were used in this study. Four programs Dolphin Imaging, Vistadent, Nemoceph, and Quick Ceph were evaluated. Three dental, 11 skeletal, and 1 soft tissue parameters were measured that consisted of 5 linear and 10 angular measurements. Statistical analysis was carried out using multivariate analysis of variance and Box's and Levene's tests. No statistically significant difference was found between manual tracing and the computerized tracing programs. The measurements obtained with the cephalometric analysis programs used in the study were reliable. 相似文献
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Melih Velipasaoglu Reyhan Ayaz Metin Senturk Samet Arslan Huseyin Mete Tanir 《The journal of maternal-fetal & neonatal medicine》2016,29(23):3838-3842
Objectives: This prospective, randomized study aimed to compare the analgesic effects of acetaminophen, diclofenac and hyoscine-N-butylbromide (HnBB) in cases of second trimester pregnancy termination.Methods: In 60 women with indications for second trimester pregnancy termination, three analgesic agents were randomized into three groups: group 1, acetaminophen; group 2, diclofenac; and group 3, HnBB. A visual analog scale (VAS) used for the evaluation of pain perception. The primary outcome of the study was mean VAS score during the procedure and last VAS score before the completion of termination. The secondary outcomes were the induction-to-abortion interval, the percentage of aborted cases within the first 24?h and finally the need for parenteral analgesia.Results: Demographic characteristics were similar among the groups. The mean VAS and last VAS scores before termination did not differ among the groups (p?=?0.3 and 0.2, respectively). The need for parenteral analgesia did not differ among the groups (p?=?0.3). Although a shorter induction-to-abortion interval and greater number of cases with successful termination before 24?h were found in the HnBB group, the differences were not statistically significant (p?=?0.6 and 0.5, respectively).Conclusions: Our study did not demonstrate a difference in pain perception among second trimester pregnancy termination cases using acetaminophen, diclofenac and HnBB. 相似文献
74.
Leptomeningeal dissemination and vertebral bone involvement in a child with pilocytic astrocytoma
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Metin Demirkaya Betül Sevinir Salih Güler Candan Demiröz Özgür Taskapilioglu Selcuk Yilmazlar Figen Palabiyik Sahsine Tolunay 《Pediatrics international》2016,58(12):1341-1344
In low‐grade glioma, metastasis is rarely seen. Few cases of leptomeningeal dissemination have been reported in children. Vertebral bone metastasis has not been reported so far. Herein is described the case of a pediatric patient with the diagnosis of pilocytic astrocytoma, and leptomeningeal dissemination detected at the time of diagnosis, who then received radiotherapy and chemotherapy upon development of vertebral bone metastasis during treatment. 相似文献
75.
Bayram Metin Şener Yıldırım Sevinç Şahin Selda Seçkin Mustafa Fatih Erkoç 《Indian Journal of Thoracic and Cardiovascular Surgery》2016,32(2):139-141
Thymic cysts are divided into two groups as unilocular and multilocular cysts. Cystic wall is generally lined with squamous, transitional, cuboidal, or columnar epithelium. Unilocular cysts that are lined with ciliated respiratory epithelium are extremely rare, and there are only two reports in the literature. In this paper, we present a case, which had concurrent unilocular thymic cyst lined with ciliated respiratory epithelium and pericardial diverticulum. 相似文献
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Kapucuoglu N Aktepe F Kaya H Bircan S Karahan N Ciriş M 《Pathology, research and practice》2007,203(3):153-162
PTEN is a tumor suppressor gene that is frequently mutated in type I endometrioid endometrial carcinomas (EECs), and is involved in the control of cell proliferation, differentiation, and apoptosis. In this study, we aimed to assess the relationship between PTEN expression and estrogen, progesterone receptors (PRs), other apoptosis-related proteins, such as bcl-2 and bax, and apoptotic index (AI) in EEC, its precursor lesion hyperplasia, and cyclical endometrium. We also evaluated the relationship between PTEN expression and clinicopathologic parameters. PTEN, estrogen receptor (ER), PR, and bcl-2 and bax expressions were evaluated immunohistochemically, and AI was evaluated in hematoxylin and eosin (HE)-stained slides in 23 cyclical and 37 hyperplastic endometria and in 35 EECs. PTEN expression was higher in cyclical endometrium than in the carcinomas (p<0.05). The PTEN expression level was significantly higher in non-atypical hyperplasias than in EEC, but there were no differences between atypical complex hyperplasia (ACH) and EEC and between hyperplasias. In the carcinomas, there was a negative correlation between grade and PTEN expression (r=-0.338, p=0.047). In conclusion, we presume that PTEN is involved in the early phases of endometrial tumorigenesis, and it can be speculated that decreased PTEN expression with loss of differentiation in carcinoma can contribute to the emergence of tumors with a more aggressive phenotype. 相似文献
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ABSTRACT: Reconstruction of columella presents certain difficulties and includes reconstruction of the cartilaginous strut and the overlying skin to obtain good results. We conducted a retrospective clinical review of 38 patients presenting with congenital and acquired columellar defects. Anatomic characteristics to be considered were defined and a classification method is proposed to more fully describe columellar defects. The columellar defects of the patients were classified into three groups as follows: type I, skin defect of columella and absence of medial crura of lower lateral cartilage; type II, type II + partial absence of caudal part of septal cartilage; and type III, complex defect of columella accompanying with the other nasal subunit defects. The patients chosen in this study were designed to describe a common approach for the choice of the reconstruction method that provides excellent aesthetic result while minimizing the extent of the surgery and maximizing patient acceptance. 相似文献
80.
Trunk muscle strength in relation to balance and functional disability in unihemispheric stroke patients 总被引:4,自引:0,他引:4
Karatas M Cetin N Bayramoglu M Dilek A 《American journal of physical medicine & rehabilitation / Association of Academic Physiatrists》2004,83(2):81-87
OBJECTIVE: To evaluate trunk muscle strength in unihemispheric stroke patients and to assess how it relates to body balance and functional disability in this patient group. DESIGN: This prospective case-comparison study investigated isometric and isokinetic reciprocal trunk flexion and extension strength at angular velocities in 38 unihemispheric stroke patients and 40 healthy volunteers. The Berg balance scale was used to assess balance and stability, and the FIM instrument was used to evaluate functional disability in the patient group. Patients were evaluated as soon as they were able to stand long enough for testing. RESULTS: Peak torque values for trunk flexion and extension were lower in the stroke patients than in the controls. The differences were significant for trunk flexion and for trunk extension. In both groups, peak torque values for trunk flexors were greater than peak torque values for trunk extensors. There was a significant positive correlation between trunk muscle strength and Berg balance scale score at discharge. Trunk muscle strength was not correlated with FIM total score or FIM motor score, but the locomotion-transfers FIM subscore at discharge was positively correlated with trunk muscle torque values, except for isometric extension. CONCLUSION: The findings indicate trunk flexion and extension muscle weakness in unihemispheric stroke patients, which can interfere with balance, stability, and functional disability. 相似文献