Questions were carried out before and after surgery Results: i)

Questions were carried out before and after surgery. Results: i) Between April 2012 and May 2013, 13 patients received preoperative simulation on the “Liversim”. This system enables us to demonstrate the real-time deformation and resection of the liver. The portal and hepatic veins are easily detectable on the resection line. There was no obvious discrepancy during the resection process; i. e., emergence of branches learn more of the portal vein or hepatic vein, depth and direction of the resection line; between our simulation and the real surgery. ii) 1. Scores about usefulness of the “Liversim” were 9.67±0.71 for the student group (n = 9) and 9.56±0.73 for the surgeon group (n = 9). All respondents

thought that this system was valuable, with no significant differences between the two groups.2. The scores about the portal vein were 7.88±2.7 for the students (n = 8) and 8.67±0.58 for the surgeons (n = 3). The scores about the hepatic vein were 8.0±2.62 for the students (n = 8), and 8.33±0.58

for the surgeons (n = 3). The scores for the surgeons about the portal and hepatic vein were significantly higher than those for the students. It was revealed that students felt difficulty in recognizing the anatomy of the portal and hepatic vein. Conclusion: This novel system may be useful for realizing the hepatic anatomy and operative procedure to young surgeons and students. Disclosures: The following people have nothing to disclose: Yukio Oshiro, Tyoichi Miyamoto, Ken Nakayama, Jun Mitani, Nobuhiro Ohkohchi “
“Appendectomy protects BVD-523 against the development of ulcerative colitis (UC). However, the relationship between appendectomy and the clinical course of UC is complex, and could be impacted by a number of variables. Data on 2648 UC patients were retrieved from the Inflammatory Bowel Disease registry at Asan Medical Center. This retrospective

cohort study compared the clinical course of UC in 68 patients who received an appendectomy before their UC diagnosis and 2544 patients who did not receive this MCE公司 procedure. A nested case-control study was also conducted to compare the disease course before and after appendectomy in 36 patients who received this surgery after UC diagnosis. To control for potential confounders, 144 matched controls were retrieved from among 2544 non-appendectomized patients In the retrospective cohort study, an appendectomy before UC diagnosis demonstrated no influence on disease extent at diagnosis, rates of medication use, proximal disease extension, or colectomy. The 10- and 20-year probabilities of receiving a colectomy were 12.7% and 20.6%, respectively, in appendectomized patients, in comparison with 8.9% and 16.4%, respectively, in non-appendectomized patients (p = 0.81). According to the nested case-control study, an appendectomy after UC diagnosis did not change the subsequent disease course in terms of medication use, proximal disease extension, or hospital admission rate.

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