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Advances in endoscopic ultrasound imaging of colorectaldiseases

World Journal of Gastroenterology 2016年第5期22卷 1756-1766页

作者： elena Tatiana Cârțână dan IonuțGheonea Adrian Săftoiu Department of Gastroenterology Research Center of Gastroenterology and Hepatology CraiovaUniversity of Medicine and Pharmacy of Craiova200638 CraiovaRomania Department of Endoscopy Gastrointestinal UnitCopenhagen University Hospital HerlevHerlev Ringvej2730 HerlevDenmark

The development of endoscopic ultrasound(EUS) has had a significant impact for patients with digestive diseases, enabling enhanced diagnostic and therapeutic procedures, with most of the available evidence focusing on upper gastrointestinal(GI) and pancreaticobiliary diseases. For the lower GI tract the main application of EUS has been in staging rectal cancer, as a complementary technique to other cross-sectional imaging methods. EUS can provide highly accurate indepth assessments of tumour infiltration, performing best in the diagnosis of early rectal tumours. In the light of recent developments other EUS applications for colorectal diseases have been also envisaged and are currently under investigation, including beyond-rectum tumour staging by means of the newly developed forward-viewing radial array echoendoscope. Due to its high resolution, EUS might be also regarded as an ideal method for the evaluation of subepithelial lesions. Their differential diagnosis is possible by imaging the originating wall layer and the associated echostructure, and cytological and histological confirmation can be obtained through EUS-guided fine needle aspiration or trucut biopsy. However, reports on the use of EUS in colorectal subepithelial lesions are currently limited. EUS allows detailed examination of perirectal and perianal complications in Crohn's disease and, as a safe and less expensive investigation, can be used to monitor therapeutic response of fistulae, which seems to improve outcomes and reduce the need for additional surgery. Furthermore, EUS image enhancement techniques, such as the use of contrast agents or elastography, have recently been evaluated for colorectal indications as well. Possible applications of contrast enhancement include the assessment of tumour angiogenesis in colorectal cancer, the monitoring of disease activity in inflammatory bowel disease based on quantification of bowel wall vascularization, and differentiating between benign and malignant

关键词： Endoscopic ultrasound Contrast-enhancedendoscopic ultrasound Elastography Colorectal cancer Inflammatory bowel disease Colorectal submucosaltumours Endoscopic ultrasound-guided therapy

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Journal of Cancer Therapy 2011年第2期2卷 217-223页

作者： Sarah n. Cross elena S. Ratner dan A. Silasi Alessandro D. Santin Masoud Azodi Thomas J. Rutherford Peter E. Schwartz Department of Obstetrics Gynecology and Reproductive Sciences Yale University School of Medicine New Haven USA.

Background: Bevacizumab is increasingly being used in the treatment of gynecologic malignancies, but has significant side-effects including hypertension and reversible posterior leukoencephalopathy (RPLS), which must be recognized by the gynecologic oncologist. Methods: A 26-month institutional retrospective review of bevacizumab in the treatment of gynecologic malignancies. Patients were grouped according to whether they had bevacizumab-related hypertension (defined as at least a grade one hypertensive toxicity) or not. There were no differences in patient demographics between the groups. Risk factors for developing bevacizumab-related hypertension were assessed using t-tests, Wilcoxon rank sum test and Fisher’s exact test. Results: Our group has treated 45 patients with bevacizumab. Fifteen (33%) patients had a pre-existing diagnosis of hypertension, 12 (80%) of whom had at least one elevated blood pressure during treatment. The 30 (67%) patients who did not have a pre-existing diagnosis of hypertension still had a high incidence of bevacizumab-related elevated blood pressure (14, 47%). The majority of patients (26, 58%) had at least one therapy cycle complicated by hypertension. Patients who experienced bevacizumab-related hypertension were significantly more likely than not to have a history of hypertension (odds ratio of 4.6, 95% CI 1.1-19.6). There was a 4.4% incidence of reversible posterior leukoencephalopathy. Patients with age equal to or greater than 75 years, stage IV disease, and creatinine elevations greater than or equal to 1.4 mg/dL were significantly more likely to develop bevacizumab-related hypertension. Other factors such as numbers of prior chemotherapies, cycles of bevacizumab, BMI, cancer site, and histology were not significantly associated with bevacizumab-related hypertension. Conclusions: Hypertension is a problem for patients on bevacizumab whether or not they have a pre-existing diagnosis. However, those with a history of hypertension we

关键词： Ovarian Cancer Bevacizumab Hypertension Posterior Reversible Leukoencephalopathy

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