Xem 1-20 trên 342 kết quả Gastrointestinal
  • Harrison's Internal Medicine Chapter 42. Gastrointestinal Bleeding Gastrointestinal Bleeding: Introduction Bleeding from the gastrointestinal (GI) tract may present in five ways. Hematemesis is vomitus of red blood or "coffee-grounds" material. Melena is black, tarry, foul-smelling stool. Hematochezia is the passage of bright red or maroon blood from the rectum. Occult GI bleeding (GIB) may be identified in the absence of overt bleeding by a fecal occult blood test or the presence of iron deficiency.

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  • Table 87-5 Hereditable (Autosomal Dominant) Gastrointestinal Polyposis Syndromes Syndrom e Distribu Histolo nant Malig Associated Lesions tion of Polyps gic Type Potential Familial adenomatous polyposis Large intestine a Adenom on Comm None Gardner's Large Adenom Comm Osteomas, syndrome and intestines small a on fibromas, lipomas, epidermoid cysts, ampullary cancers, congenital hypertrophy retinal of pigment epithelium Turcot's syndrome Large intestine a Adenom on Comm tumors Brain Nonpoly Large Adenom on Comm al Endometri and ovarian posis syndrome int...

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  • Approach to the Patient: Gastrointestinal Bleeding Measurement of the heart rate and blood pressure is the best way to assess a patient with GIB. Clinically significant bleeding leads to postural changes in heart rate or blood pressure, tachycardia, and, finally, recumbent hypotension. In contrast, the hemoglobin does not fall immediately with acute GIB, due to proportionate reductions in plasma and red cell volumes (i.e., "people bleed whole blood"). Thus, hemoglobin may be normal or only minimally decreased at the initial presentation of a severe bleeding episode. ...

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  • Harrison's Internal Medicine Chapter 87. Gastrointestinal Tract Cancer Gastrointestinal Tract Cancer: Introduction The gastrointestinal tract is the second most common noncutaneous site for cancer and the second major cause of cancer-related mortality in the United States. Esophageal Cancer Incidence and Etiology Cancer of the esophagus is a relatively uncommon but extremely lethal malignancy. The diagnosis was made in 15,560 Americans in 2007 and led to 13,940 deaths. Worldwide, the incidence of esophageal cancer varies strikingly. ...

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  • In the late 1960s and early 1970s, sporadic attempts to perform esophagogastroduodenoscopy (EGD) using fiberscopes designed for adults were made in children. However, the actual “birth’’ of pediatric EGD occurred a few years later when prototypes of pediatric flexible gastroscopes and panendoscopes became commercially available.

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  • The area of gastrointestinal oncology is an active one. Both clinical research and basic research have come together and changed the diagnostic and treatment protocols for a number of deadly malignancies. A multidisciplinary approach to the diagnosis and treatment appears to be the best paradigm; it allows for each individual medical specialty to apply their knowledge and expertise in an expeditious and effective manner.

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  • Endoscopy is a fast moving field, and new techniques are constantly emerging. Gastrointestinal endoscopy has a central role in the evaluation of gastrointestinal complaints and in the diagnosis and management of gastrointestinal diseases. It is a very safe procedure in the general population as demonstrated by numerous studies. Several data provide a better understanding of pathogenic mechanisms. In recent decades, gastrointestinal endoscopy has evolved and branched out from a visual diagnostic modality to impressive interventional capabilities.

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  • The human gastrointestinal tract microorganisms, termed the “microbiota,” have been investigated since the beginning of microbiological studies, when Antonie van Leeuwenhoek, the father of microbiology, investigated the microorganisms in his own stools. The human microbiota comprises trillions of microbes distributed in various niches throughout the intestinal tract and is one of the most complex microbial ecosystems on earth.

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  • Tham khảo tài liệu 'gastrointestinal endoscopy - part 1', y tế - sức khoẻ, y học thường thức phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

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  • Tuyển tập các báo cáo nghiên cứu về hóa học được đăng trên tạp chí hóa học đề tài : Impact of gastroesophageal reflux disease on daily life: the Systematic Investigation of Gastrointestinal Diseases in China (SILC) epidemiological study

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  • Tumors of the Stomach Gastric Adenocarcinoma Incidence and Epidemiology For unclear reasons, the incidence and mortality rates for gastric cancer have decreased markedly during the past 75 years. The mortality rate from gastric cancer in the United States has dropped in men from 28 to 5.8 per 100,000 persons, while in women the rate has decreased from 27 to 2.8 per 100,000. Nonetheless, 21,260 new cases of stomach cancer were diagnosed in the United States, and 11,210 Americans died of the disease in 2007.

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  • CÁC LOẠI XUẤT HUYẾT ĐƯỜNG TIÊU HÓA KHÁC NHAU ? Cách thông thường nhất và hữu ích trên phương diện lâm sàng là phân chia xuất huyết đường dạ dày-ruột (gastrointestinal tract bleeding) thành xuất huyết ở phần trên và phần dưới. Sự xác định này cho ta một ý nghĩ về căn nguyên, tiên lượng, và cách điều trị. - Xuất huyết dạ dày-ruột trên (upper gastrointestinal tract bleeding) : bao gồm xuất huyết ở phần gần so với tá tràng (duodenum). ...

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  • Tuyển tập các báo cáo nghiên cứu khoa học ngành y học tạp chí Medical Sciences dành cho các bạn sinh viên ngành y tham khảo đề tài: Polysaccharides from the root of Angelica sinensis protect bone marrow and gastrointestinal tissues against the cytotoxicity of cyclophosphamide in mice...

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  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Malignant gastrointestinal stromal tumor presenting with hemoperitoneum in puerperium: report of a case with review of the literature

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  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Extra-gastrointestinal stromal tumor of the greater omentum: report of a case and review of the literature

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  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Ileoileal intussusception induced by a gastrointestinal stromal tumor

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  • Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Radiation Oncology cung cấp cho các bạn kiến thức về ngành y đề tài:" Reirradiation to the abdomen for gastrointestinal malignancies...

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  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Duodenal gastrointestinal stromal tumor resembling a pancreatic neuroendocrine tumor in a patient with neurofibromatosis type I (von Recklinghausen’s disease): a case report

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  • Tuyển tập các báo cáo nghiên cứu về sinh học được đăng trên tạp chí hóa học quốc tế đề tài : Gastrointestinal (GI)-Specific patient reported outcomes instruments differentiate between renal transplant patients with or without GI symptoms: results from a South American cohort

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