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https://www.selleckchem.com/products/3-amino-9-ethylcarbazole.html osis without the need for further small-bowel resection. This bowel-sparing technique represents a valuable option in the armamentarium of the surgeon who manages patients with intestinal failure. Treatment of endoscopically resected T1 colorectal cancers is based on the risk of lymph node metastasis. Risk is based on histopathologic features, although there is lack of consensus as to what constitutes high-risk features. The purpose of this study was to conduct a systematic review and meta-analysis of histopathologic risk factors for lymph node metastasis. A search of MEDLINE, Embase, Scopus, and Cochrane controlled register of trials for risk factors for lymph node metastasis was performed from inception until August 2018. Included patients must have had an oncologic resection to confirm lymph node status and reported at least 1 histopathologic risk factor. Rates of lymph node positivity were compared between patients with and without risk factors. We report the results of the meta-analysis as ORs. Of 8592 citations, 60 met inclusion criteria. Pooled analyses found that lymphovascular invasion, vascular invasion, neural invasion, and poorly differentiated histology were significantly assusters to lymph node metastasis. We identified 1500 μm as the depth most significantly associated with lymph node metastasis. Novel factors tumor budding and poorly differentiated clusters were also significantly associated with lymph node metastasis. These findings should help inform guidelines regarding risk stratification of T1 tumors and prompt additional investigation into the exact contribution of poorly differentiated clusters to lymph node metastasis. A pilot study conducted at our institution showed that a significant amount of prescribed postoperative opioids is left unused with the potential for diversion and misuse. This study aimed to evaluate the impact of provider- and patient-targeted educational inte

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