نتایج جستجو برای: colorectal surgeries
تعداد نتایج: 97307 فیلتر نتایج به سال:
We use the Ozsváth-Szabó contact invariants to distinguish between tight contact structures obtained by Legendrian surgeries on stabilized Legendrian links in tight contact 3-manifolds. We also discuss the implication of our result on the tight contact structures on the Brieskorn homology spheres −Σ(2, 3, 6n − 1).
INTRODUCTION The purpose of this article was to provide the literature regarding the psychological stress in the peri-operative period of adult patients undergoing operations under general anesthesia. METHODS The articles were obtained by surveying the papers published and catalogued in the Medline Pubmed interface database, Lilacs and the Biblioteca Virtual de Saúde (BVS) since 1984, crossin...
Abstract Background: Sporadic colorectal cancer is the fourth most common cancer in Iran. The DNA repair protein O6-methylguanine-DNA methyltransferase (MGMT) is involved in the cellular defense against alkylating agents. Genetic alterations in the MGMT gene may impair the protein’s ability to remove alkyl groups from the O6-position of guanine, thereby raising the mutation rate and increasi...
Background: Application of robotic surgery in the field general has been increasing. This paper is an overview current uses and future perspectives four major divisions—endocrine, upper gastrointestinal, hepato-biliary-pancreatic (HBP), colorectal surgery.Current Concepts: In endocrine surgery, cosmetic advantage highest priority when selecting a surgical approach for thyroidectomy. Currently, ...
Background: Kirsten rat sarcoma (KRAS) gene is a target of genetic alterations which are diagnostic and prognostic biomarkers in patients with metastatic colorectal cancer who are treated with monoclonal anti-EGFR antibodies such as cetuximab and panitumumab. KRAS mutations are seen in 35-42% of patients with colorectal cancer. The high frequency of these mutations in colorectal cancer represen...
background: colorectal cancer is one of the most common malignancies worldwide with more than one million new cases. according to the ministry of health and medical education of iran, colorectal cancer is the third most common cancer in iran. many risk factors are known causes of this disease. however, the molecular mechanisms associated with colorectal cancer are still under investigation. rec...
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