17 research outputs found

    Computational Method for Arbitrarily-Shaped Elastic Objects in Free-Surface Flows

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    Source: ICHE Conference Archive - https://mdi-de.baw.de/icheArchiv

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    Size constancy of autistic children has been exmined regarding with the two view points of whether subjects have remedial learning or not and whether they have language or not. The results are as follows : (1) Verbal autistic children exhibit a similar size constancy as normal children without any relation to their remedial learning experience, while those who have remedial learning experience show a higher stability in judgement of size than those who don\u27t. (2) Non-verbal autistic children are difficult for us to examine. But one child whom we were able to examine displayed appreciable size constancy

    Pancreatic Arteriovenous Malformation

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    An unusual case of pancreatic arteriovenous malformation (P-AVM) combined with esophageal cancer is reported. A 59-year-old man was admitted with upper abdominal pain. Contrast-enhanced computed tomography showed numerous strongly enhanced abnormal vessels and a hypovascular lesion in the area of the pancreatic tail. Angiographic study of the celiac artery confirmed racemose vascular networks in the tail of the pancreas. Endoscopic retrograde pancreatography revealed narrowing and displacement of the main pancreatic duct in the tail of the pancreas. Screening esophagoscopy showed a 0-IIa+IIc type tumor in the lower thoracic esophagus. Histological examination of esophagoscopic biopsies showed squamous cell carcinoma. Based on these findings, P-AVM or pancreatic cancer and esophageal cancer were diagnosed. Video-assisted thoracoscopic esophagectomy and distal pancreatectomy were performed. Histological examination of the resected pancreas revealed abundant abnormal vessels with intravascular thrombi. In addition, rupture of a dilated pancreatic duct with pancreatic stones and both severe atrophy and fibrosis of the pancreatic parenchyma were observed. The final diagnoses were P-AVM consequent to severe chronic pancreatitis and esophageal carcinoma. The patient's postoperative course was relatively good

    Feasibility of reduced port surgery applying Higuchi's transverse incision

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    Objective: Higuchi's transverse incision is made at a lower position than the Pfannenstiel transverse incision and is superior in terms of cosmetic outcomes. The purpose of this study was to examine the safety and efficacy of novel forms of reduced port surgery for ovarian cysts and uterine fibroids applying Higuchi's transverse incision. Methods: In 33 patients with ovarian cysts who underwent low-position single-incision laparoscopic surgery (L-SILS)-modified single-port laparoscopy placed in the 2–3-cm Higuchi's incision above the pubis, patient's characteristics and perioperative outcomes were compared with those of patients who underwent multiport laparoscopy (n=53). In addition, 18 patients with uterine fibroids who underwent dual-port laparoscopically assisted myomectomy without using power morcellators and conventional four-port laparoscopically assisted myomectomy were investigated. Results: There were no significant differences between L-SILS and multiport laparoscopy in tumor diameter, bleeding, hospital stay, or postoperative pain. However, the L-SILS group demonstrated significantly shorter operative and pneumoperitoneum times (p<0.01 and p<0.01). In comparison with cases of uterine fibroids, no significant differences were found in maximum fibroid diameter, operative time, pneumoperitoneum time, or bleeding. However, the dual-port laparoscopically assisted myomectomy group demonstrated a significantly shorter length of hospital stay than the conventional laparoscopically assisted myomectomy group (p<0.05). Conclusion: We reported novel forms of reduced port surgery applying Higuchi's transverse incision. It was suggested that these procedures are relatively simple, but ensure the same safety and efficacy as conventional methods. We intend to increase the number of cases and examine safety, efficacy, and patient satisfaction for these procedures

    Adenocarcinoma arising from an ectopic pancreas in the duodenum : a case report

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    Background The malignant transformation of an ectopic pancreas in the duodenum is extremely rare. Herein, we report a case of an adenocarcinoma that arose from an ectopic pancreas. We also reviewed 14 cases of malignant transformations arising from an ectopic pancreas in the duodenum that were previously published. Case presentation An 81-year-old man with a 1-month history of vomiting was admitted to our institution. Esophagogastroduodenoscopy (EGD) and computed tomography (CT) scans revealed an obstruction at the first part of the duodenum. A distal gastrectomy was performed for diagnostic and therapeutic purposes. The histopathological examination of the resected specimen showed adenocarcinoma that arose from an ectopic pancreas (Heinrich type 1). The patient is alive without relapse at 18 months of follow-up. Conclusions Adenocarcinoma that arises from an ectopic pancreas should be considered when an obstruction is identified in the duodenum