检索结果-南通市图书馆

World Journal of Gastroenterology 2007年第40期13卷 5306-5311页

作者： Satoshi Mamori Tadashi Asakura Kiyoshi Ohkawa hisao tajiri Division of Gastroenterology and Hepatology Department of Internal MedicineThe Jikei University School of MedicineTokyo 105-8461Japan Department of Biochemistry 1 The Jikei University School of MedicineTokyo 105-8461Japan

AIM： To investigate the expression of survivin during the early stages of hepatocellular cardnoma （HCC）.METHODS： Immunohistochemical expression of survivin in liver tumor and non-tumor tissue specimens taken from 17 patients was compared. In addition, to determine the survivin expression in response to anticancer drugs in early stage HCC, the survivin expression was determined after the treatment of the HCC cells with anti-cancer drugs under hypoxic culture conditions.RESULTS： Survivin proteins were expressed in 64.7% of cells in early HCC specimens. A correlation between the survivin expression rate in the peritumoral hepatocytes and the rate of expression in the HCC specimens （low-rate group vs high-rate group） was observed. The survivin protein concentration in HCC cells was increased by the combination of hypoxia and anti-cancer drugs.CONCLUSION： This study suggests that survivin could be used as a therapeutic target in early HCC.

关键词： Survivin Hepatocellular carcinoma Hypoxia

Impairment of secondary peristalsis in Barrett's esophagus by transnasal endoscopy-based testing

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2014年第3期20卷 822-828页

作者： Go Kobayashi Mitsuru Kaise Hiroshi Arakawa hisao tajiri Department of Gastroenterology and Hepatology Jikei University Daisan Hospital Department of Gastroenterology Toranomon Hospital Department of Endoscopy Jikei University Kashiwa Hospital Department of Gastroenterology and Hepatology Jikei University School of Medicine

AIM: To investigate dysfunctions in esophageal peristalsis and sensation in patients with Barrett’s esophagus following acid infusion using endoscopy-based testing.

关键词： Barrett’ s esophagus, Transnasal endoscopy, Acid infusion test, Esophageal sensation, Secondary peristalsis

Gastroesophageal flap valve status distinguishes clinical phenotypes of large hiatal hernia

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2010年第47期16卷 6010-6015页

作者： Haruka Kaneyama Mitsuru Kaise Hiroshi Arakawa Yoshinori Arai Keisuke Kanazawa hisao tajiri Department of Endoscopy The Jikei University School of Medicine Department of Gastroenterology and Hepatology The Jikei University School of Medicine

AIM: To investigate two distinct clinical phenotypes of reflux esophagitis and intra-hernial ulcer (Cameron lesions) in patients with large hiatal hernias. METHODS: A case series study was performed with 16 831 patients who underwent diagnostic esophagogastroduodenoscopy for 2 years at an academic referral center. A hiatus diameter ≥ 4 cm was defined as a large hernia. A sharp fold that surrounded the cardia was designated as an intact gastroesophageal flap valve (GEFV), and a loose fold or disappearance of the fold was classified as an impaired GEFV. We studied the associations between large hiatal hernias and the distinct clinical phenotypes (reflux esophagitis and Cameron lesions), and analyzed factors that distinguished the clinical phenotypes. RESULTS: Large hiatal hernias were found in 49 (0.3%) of 16 831 patients. Cameron lesions and reflux esopha-gitis were observed in 10% and 47% of these patients, and 0% and 8% of the patients without large hiatal hernias, which indicated significant associations between large hiatal hernias and these diseases. However, there was no coincidence of the two distinct disorders. Univariate analysis demonstrated significant associations between Cameron lesions and the clinico-endoscopic factors such as nonsteroidal anti-inflammatory drug (NSAID) intake (80% in Cameron lesion cases vs 18% in non-Cameron lesion cases, P=0.015) and intact GEFV (100% in Cameron lesion cases vs 18% in non-Cameron lesion cases, P=0.0007). In contrast, reflux esophagitis was linked with impaired GEFV (44% in reflux esophagitis cases vs 8% in non-reflux esophagitis cases, P = 0.01). Multivariate regression analysis confirmed these significant associations. CONCLUSION: GEFV status and NSAID intake distinguish clinical phenotypes of large hiatal hernias. Cameron lesions are associated with intact GEFV and NSAID intake.

关键词： Large hiatal hernia Reflux esophagitis Cameron lesion Gastroesophageal flap valve Nonsteroidal anti-inflammatory drug

Balloon overtube-guided colorectal endoscopic submucosal dissection

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2009年第48期15卷 6086-6090页

作者： Tomohiko Ohya Ken Ohata Kazuki Sumiyama Yousuke Tsuji Ikuro Koba Nobuyuki Matsuhashi hisao tajiri Department of Endoscopy The Jikei University School of Medicine Division of Gastroenterology Kanto Medical Center NTT EC Division of Gastroenterology and Hepatology Yamaga Chou Hospital Department of Endoscopy Department of Gastroenterology and HepatologyThe Jikei University School of Medicine

AIM:To evaluate the usefulness of a balloon overtube to assist colorectal endoscopic submucosal dissection(ESD)using a ***:The results of 45 consecutive patients who underwent colorectal ESD were analyzed in a single tertiary endoscopy *** preoperative evaluation of access to the lesion,difficulties were experienced in the positioning and stabilization of a gastroscope in 15 patients who were thus assigned to the balloonguided ESD group.A balloon overtube was placed with a gastroscope to provide an endoscopic channel to the lesion in cases with preoperatively identified difficulties related to *** ESD was performed following standard procedures.A submucosal fluid bleb was created with hyaluronic acid solution.A circumferential mucosal incision was made to marginate the *** isolated lesion was finally excised from the deeper layers with repetitive electrosurgical dissections with needle *** success of colorectal ESD,procedural feasibility,and procedure-related complications were the main outcomes and ***:The overall en bloc excision rate of colorectal ESD during this study at our institution was 95.6%.En bloc excision of the lesion was successfully achieved in 13 of the 15 patients(86.7%)in the balloon overtube-guided colorectal ESD group,which was comparable to the results of the standard ESD group with better accessibility to the lesion(30/30,100%,not statistically significant).CONCLUSION:Use of a balloon overtube can improve access to the lesion and facilitate scope manipulation for colorectal ESD.

关键词： Balloon overtube Colorectal neoplasm Early colorectal cancer En bloc tumor excision Endoscopic submucosal dissection Laterally spreading tumor

Diagnostic utility of narrow-band imaging endoscopy for pharyngeal superfi cial carcinoma

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2011年第45期17卷 4999-5006页

作者： Noboru Yoshimura Kenichi Goda hisao tajiri Yukinaga Yoshida Takakuni Kato Yoichi Seino Masahiro Ikegami Mitsuyoshi Urashima Department of Endoscopy The Jikei University School of Medicine Division of Gastroenterology and Hepatology Department of Internal Medicine The Jikei University School of Medicine Department of Otorhinolaryngology The Jikei University School of Medicine Department of Pathology The Jikei University School of Medicine Clinical Research and Development The Jikei University School of Medicine

AIM: To investigate the endoscopic features of pharyngeal superfi cial carcinoma and evaluate the utility of narrow-band imaging (NBI) for this disease. METHODS: In the present prospective study, 335 patients underwent conventional white light (CWL) en-doscopy and non-magnifi ed/magnifi ed NBI endoscopy, followed by an endoscopic biopsy, for 445 superfi cial lesions in the oropharynx and hypopharynx. The macroscopic appearance of superfi cial lesions was categorized as either elevated (< 5 mm in height), flat, or depressed (not ulcerous). Superficial carcinoma (SC) was defi ned as a superfi cial lesion showing high-grade dysplasia or squamous cell carcinoma on histology. The color, delineation, and macroscopic appearances of the lesions were evaluated by CWL endoscopy. The ratio of the brownish area/intervascular brownish epithelium (IBE), as well as microvascular proliferation, dilation, and irregularities, was determined by non-magnifi ed/ magnifi ed NBI endoscopy. An experienced pathologist who was unaware of the endoscopic fi ndings made the histological diagnoses. By comparing endoscopic fi ndings with histology, we determined the endoscopic features of SC and evaluated the diagnostic utility of NBI. RESULTS: The 445 lesions were divided histologically into two groups: a non-SC group, including non-neoplasia and low-grade dysplasia cases, and an SC group. Of the 445 lesions examined, 333 were classified as non-SC and 112 were classif ied as SC. There were no significant differences in age, gender, or the location of the lesions between the patients in the two groups. The mean diameter of the SC lesions was signif icantly greater than that of non-SC lesions (11.0 ± 7.6 mm vs 4.6 ± 3.6 mm, respectively, P < 0.001). Comparisons of CWL endoscopy fi ndings for SC and non-SC lesions by univariate analysis revealed that the incidence of redness (72% vs 41%, respectively, P < 0.001) and a flat or depressed type of lesion (58% vs 44%, respectively, P = 0.013) was signif

关键词： Narrow-band imaging Magnified endoscopy Endoscopic diagnosis Pharynx Pharyngeal cancer Superfi cial carcinoma Squamous cell carcinoma Dysplasia

Four-week pegylated interferon a-2a monotherapy for chronic hepatitis C with genotype 2 and low viral load:A pilot,randomized study

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2008年第47期14卷 7220-7224页

作者： Akihito Tsubota Ken-ichi Satoh Mashu Aizawa Seishi Takamatsu Yoshihisa Namiki Toshifumi Ohkusa Kiyotaka Fujise hisao tajiri Institute of Clinical Medicine and Research Jikei University School of MedicineChiba 277-8567Japan Department of Gastroenterology and Hepatology Kashiwa HospitalJikei University School of MedicineChiba 277-8567Japan Division of Gastroenterology and Hepatology Department of Internal MedicineJikei University School of MedicineTokyo 105-8461Japan

AIM:To assess the efficacy and advantages of 4-wk pegylated interferon a-2a(peg-IFN-a2a) monotherapy for chronic hepatitis C patients with strong predictors of sustained virologic response(SVR).METHODS:Patients(n = 33) with genotype 2 and low viral load(< 100 KIU/mL),who became HCV RNA negative after 1 wk of IFN treatment,were randomly allocated to receive a 4-or 12-wk treatment course at a ratio of 2:1,respectively,with a subsequent 24-wk follow-up ***-IFN-a2a was administered subcutaneously at a dose of 180 μg or 90 μg once *** was defined as absence of serum HCV RNA at the end of the follow-up ***:All patients completed the treatment schedule,and more than half were symptom-free during the *** the 4-wk treatment group,20 of 22(91%) patients achieved *** patients relapsed,but achieved SVR following re-treatment with peg-IFN-a2a *** the 12-wk treatment group,11 of 11(100%) patients attained ***:Our results show that a 4-wk course of peg-IFN-a2a monotherapy can achieve a high SVR rate in "IFN-sensitive" patients,without negatively affecting outcome.

关键词： Chronic hepatitis C Pegylated interferonalpha-2a monotherapy Genotype 2 Low viral load Randomized pilot study

Serum type Ⅳ collagen level is predictive for esophageal varices in patients with severe alcoholic disease

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2008年第13期14卷 2044-2048页

作者： Satoshi Mamori Yasuyuki Searashi Masato Matsushima Kenichi Hashimoto Shinichiro Uetake Hiroshi Matsudaira Shuji Ito Hisato Nakajima hisao tajiri Division of Gastroenterology and Hepatology Department ofInternal Medicine the Jikei University School of Medicine Tokyo105-8461 Japan Division of Clinical Research anddevelopment the Jikei University School of Medicine Tokyo105-8461 Japan Tokyo Medical Center of Alcohol RelatedDisabilities Tokyo 175-0091 Japan

AIM： To determine factors predictive for esophagea varices in severe alcoholic disease （SAD）. METHODS： Abdominal ultrasonography （US） was performed on 444 patients suffering from alcoholism. Forty-four patients found to have splenomegaly and/ or withering of the right liver lobe were defined as those with SAD. SAD patients were examined by upper gastrointestinal （UGI） endoscopy for the presence of esophageal varices. The existence of esophageal varices was then related to clinical variables. RESULTS： Twenty-five patients （56.8%） had esophageal varices. A univariate analysis revealed a significant difference in age and type Ⅳ collagen levels between patients with and without esophageal varices. A logistic regression analysis identified type Ⅳ collagen as the only independent variable predictive for esophageal varices （P = 0.017）. The area under the curve （AUC） for type Ⅳ collagen as determined by the receiver operating characteristic （ROC） for predicting esophageal varices was 0.78. CONCLUSION： This study suggests that the level of type Ⅳ collagen has a high diagnostic accuracy for the detection of esophageal varices in SAD.

关键词： Type Ⅳ collagen Esophageal varice Alcoholic disease Abdominal ultrasonography Alcoholism

Diagnostic approach using endosonography guided fine needle aspiration for lymphadenopathy in primary sclerosing cholangitis

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2007年第27期13卷 3758-3759页

作者： Shintaro Tsukinaga Hiroo Imazu Yujiro Uchiyama Hiroshi Kakutani Akira Kuramoti Masayuki Kato Keisuke Kanazawa Tsuyoshi Kobayashi Yasuyuki Searashi hisao tajiri Department of Endoscopy Jikei University School of Medicine Tokyo Japan Division of Gastroenterology and Hepatology Department of Internal Medicine Jikei University School of Medcine Japan

We report a case of primary sclerosing cholangitis (PSC) with benign lyphadenopathy which was diagnosed with endosonography guided fine needle aspiration (EUS-FNA). A 65-year-old woman was admitted to Jikei University Hospital with severe jaundice. Although endoscopic retrograde cholangiography and liver biopsy revealed the findings consistent with PSC, abdominal computed tomography revealed numerous large perihepatic lymph nodes with a maximum diameter of more than 3 cm. Therefore, EUS-FNA was done in order to exclude malignant lymphadenopathy, and adequate specimens obtained by EUS-FNA showed reactive hyperplasia of lymphnode. The patients were scheduled to undergo liver transplantation.

关键词： Endosonography guided fine needle aspiration Primary sclerosing cholangitis Lymphadenopathy

Short-and long-term outcomes of endoscopically treated superficial non-ampullary duodenal epithelial tumors

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2019年第6期25卷 707-718页

作者： Yuko Hara Kenichi Goda Akira Dobashi Tomohiko Richard Ohya Masayuki Kato Kazuki Sumiyama Takehiro Mitsuishi Shinichi Hirooka Masahiro Ikegami hisao tajiri Department of Endoscopy The Jikei University School of Medicine Department of Gastroenterology Dokkyo Medical University Department of Endoscopy The Jikei University Katsushika Medical Center Department of Pathology The Jikei University School of Medicine Department of Innovative Interventional Endoscopy Research The Jikei University School of Medicine

BACKGROUND It is widely recognized that endoscopic resection(ER) of superficial nonampullary duodenal epithelial tumors(SNADETs) is technically challenging and may carry high risks of intraoperative and delayed bleeding and *** adverse events could be more critical than those occurring in other levels of the gastrointestinal tract. Because of the low prevalence of the disease and the high risks of severe adverse events, the curability including short-and long-term outcomes have not been standardized *** To investigate the curability including short-and long-term outcomes of ER for SNADETs in a large case *** This retrospective study included cases that underwent ER for SNADETs at our university hospital between March 2004 and July 2017. Short-term outcomes of ER were measured based on en bloc and R0 resection rates as well as adverse events. Long-term outcomes included local recurrence detected on endoscopic surveillance and disease-specific mortality in patients followed up for ≥ 12 mo after *** In the study, 131 patients with 147 SNADETs were analyzed. The 147 ERs consisted of 136 endoscopic mucosal resections(EMRs)(93%) and 11 endoscopic submucosal dissections(ESDs)(7%). The median tumor diameter was 10 *** pathology diagnosis was adenocarcinoma(56/147, 38%), high-grade intraepithelial neoplasia(44/147, 30%), or low-grade intraepithelial neoplasia(47/147, 32%). The R0 resection rate was 68%(93/136) in the EMR group and73%(8/11) in the ESD group, respectively. Cap-assisted EMR(known as EMR-C)showed a higher rate of R0 resection compared to the conventional method of EMR using a snare(78% vs 62%, P = 0.06). No adverse event was observed in the EMR group, whereas delayed bleeding, intraoperative perforation, and delayed perforation in 3, 3, and 5 patients occurred in the ESD group, respectively. One patient with perforation required emergency surgery. In the 43 mo median follow-up period, local recurrence was found in four EMR

关键词： Duodenal adenoma Duodenal cancer Endoscopic resection Endoscopic submucosal dissection Long-term outcome

Simplified criteria for diagnosing superficial esophageal squamous neoplasms using Narrow Band Imaging magnifying endoscopy

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2016年第41期22卷 9196-9204页

作者： Akira Dobashi Kenichi Goda Noboru Yoshimura Tomohiko R Ohya Masayuki Kato Kazuki Sumiyama Masato Matsushima Shinichi Hirooka Masahiro Ikegami hisao tajiri Department of Endoscopy The Jikei University School of Medicine Department of Endoscopy The Jikei University Katsushika Medical Center Division of Clinical Epidemiology The Jikei University School of Medicine Department of Pathology The Jikei University School of Medicine Department of Innovative Interventional Endoscopy Research The Jikei University School of Medicine

AIM To simplify the diagnostic criteria for superficial esophageal squamous cell carcinoma(SESCC) on Narrow Band Imaging combined with magnifying endoscopy(NBI-ME).METHODS This study was based on the post-hoc analysis of a randomized controlled trial. We performed NBI-ME for 147 patients with present or a history of squamous cell carcinoma in the head and neck, or esophagus between January 2009 and June 2011. Two expert endoscopistsdetected 89 lesions that were suspicious for SESCC lesions, which had been prospectively evaluated for the following 6 NBI-ME findings in real time: "intervascular background coloration"; "proliferation of intrapapillary capillary loops(IPCL)"; and "dilation", "tortuosity", "change in caliber", and "various shapes(VS)" of IPCLs(i.e., Inoue's tetrad criteria). The histologic examination of specimens was defined as the gold standard for diagnosis. A stepwise logistic regression analysis was used to identify candidates for the simplified criteria from among the 6 NBI-ME findings for diagnosing SESCCs. We evaluated diagnostic performance of the simplified criteria compared with that of Inoue's *** Fifty-four lesions(65%) were histologically diagnosed as SESCCs and the others as low-grade intraepithelial neoplasia or inflammation. In the univariate analysis, proliferation, tortuosity, change in caliber, and VS were significantly associated with SESCC(P < 0.01). The combination of VS and proliferation was statistically extracted from the 6 NBI-ME findings by using the stepwise logistic regression model. We defined the combination of VS and proliferation as simplified dyad criteria for SESCC. The areas under the curve of the simplified dyad criteria and Inoue's tetrad criteria were 0.70 and 0.73, respectively. No significant difference was shown between them. The sensitivity, specificity, and accuracy of diagnosis for SESCC were 77.8%, 57.1%, 69.7% and 51.9%, 80.0%, 62.9% for the simplified dyad criteria and Inoue's tetrad criteria,

关键词： Simplified criteria Narrow Band Imaging Magnifying endoscopy Esophageal cancer Squamous cell carcinoma Endoscopic diagnosis Classification Superficial squamous cell carcinoma Stepwise logistic regression analysis