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Congenital tracheoesophageal fistula successfully diagnosed by CT esophagography

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World Journal of Gastroenterology 2006年第9期12卷 1476-1478页

作者： koichi nagata Yoshito Kamio Tamaki Ichikawa Mitsutaka Kadokura Akihiko Kitami Shungo Endo Haruhiro Inoue Shin-Ei Kudo Digestive Disease Center Showa University Northern Yokohama Hospital 35-1 Chigasaki-chuoTsuzuki-kuYokohama 224-8503 Japan Respiratory Disease Center Showa University Northern Yokohama Hospital 35-1 Chigasaki-chuoTsuzuki-kuYokohama 224-8503Japan Department of Radiology Showa University Northern Yokohama Hospital 35-1 Chigasaki-chuoTsuzuki-kuYokohama 224-8503Japan Digestive Disease Center Showa University Northern Yokohama Hospital 35-1 Chigasaki-chuoTsuzuki-kuYokohama 224-8503Japan

Tracheoesophageal fistula （TEF） or bronchoesophageal fistula may be congenital, inflammatory, neoplastic, or secondary to trauma. Congenital TEF or bronchoesophageal fistula is usually associated with esophageal atresia and is readily diagnosed in infancy. But if it is not associated with esophageal atresia, it may persist until adulthood. Some theories have been proposed to explain this delay in diagnosis. We present a case of a 70-year-old man with congenital TEF. The TEF was successfully diagnosed by multidetector-row CT esophagography.

关键词： Tracheoesophageal fistula Congenital Virtual endoscopy Computed tomography Esophagography

Recent trends in the prevalence and distribution of colonic diverticula in Japan evaluated using computed tomography colonography

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World Journal of Gastroenterology 2021年第27期27卷 4441-4452页

作者： Noriyuki Isohata koichi nagata Kenichi Utano Ryoichi Nozaki Satoshi Nozu Takashi Kato Shigeyoshi Kijima Hiroshi Matsumoto Kenichiro Majima Yasuji Ryu Michiaki Hirayama Shungo Endo Department of Coloproctology Fukushima Medical UniversityAizu Medical CenterAizuwakamatsu 969-3492FukushimaJapan Department of Gastroenterology Fukushima Medical UniversityFukushima 960-1295FukushimaJapan Department of Radiology Fukushima Medical UniversityAizu Medical CenterAizuwakamatsu 969-3492FukushimaJapan Department of Gastroenterology Takano HospitalColoproctology CenterKumamoto 862-0971KumamotoJapan Department of Radiology Saitama Cancer CenterIna 362-0806SaitamaJapan Department of Gastroenterology National Hospital Organization Hokkaido Medical CenterSapporo 063-0005HokkaidoJapan Department of Radiology Jichi Medical UniversityShimotsuke 329-0498TochigiJapan Division of Gastroenterology Kawasaki Medical School HospitalKurashiki 701-0192OkayamaJapan Department of Health Management Kameda Medical CenterKamogawa 296-8602ChibaJapan Department of Radiology Tonami General HospitalTonami 939-1395ToyamaJapan Department of Gastroenterology Tonan HospitalSapporo 060-0004HokkaidoJapan

BACKGROUND Computed tomography colonography(CTC)may be superior to colonoscopy and barium enema for detecting ***,few studies have used CTC to diagnose *** To evaluate the current prevalence and distribution of colonic diverticula in Japan using *** This study was conducted as part of the Japanese National Computed Tomographic Colonography Trial,which included 1181 participants from 14 hospitals in *** analyzed the prevalence and distribution of colonic diverticula and their relationships with age and *** relationship between the diverticula and the length of the large intestine was also *** Diverticulosis was present in 48.1%of the *** prevalence of diverticulosis was higher in the older participants(P<0.001 for trend).The diverticula seen in younger participants were predominantly located in the right-sided *** participants had a higher frequency of bilateral type(located in the rightand left-sided colon)diverticulosis(P<0.001 for trend).The length of the large intestine with multiple diverticula in the sigmoid colon was significantly shorter in those without diverticula(P<0.001).CONCLUSION The prevalence of colonic diverticulosis in Japan is higher than that previously *** prevalence was higher,and the distribution tended to be bilateral in older participants.

关键词： Computed tomography colonography Diverticulosis Diverticular disease Colon

Patterns and Trends in Diagnostic Tests Used for Detection of Colorectal Cancer after Screening with the Immunochemical Fecal Occult Blood Test in Japan

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Open Journal of Clinical Diagnostics 2015年第3期5卷 107-116页

作者： Junta Yamamichi Kahori Seto Shiro Hinotsu koichi nagata Yasutoshi Kobayashi Hisashi Urushihara Koji Kawakami Department of Pharmacoepidemiology Graduate School of Medicine and Public Health Kyoto University Kyoto Japan Center for Innovative Clinical Medicine Okayama University Hospital Okayama Japan Cancer Screening Technology Division Research Center for Cancer Prevention and Screening National Cancer Center Tokyo Japan Department of Radiology Jichi Medical University Tochigi Japan Division of Drug Development and Regulatory Science Faculty of Pharmacy Keio University Tokyo Japan

According to the guidelines by the Japanese government, optical colonoscopy is the most strongly recommended diagnostic test after screening with the immunochemical fecal occult blood test (iFOBT), followed by double-contrast barium enema (BE) or sigmoidoscopy. Our study was to assess patterns and trends of colorectal cancer (CRC) diagnostic testing within 2 years after iFOBT. We analyzed both iFOBT results and claims data provided by employee health insurance societies in Japan from 2005 to 2010. 25,596 enrollees underwent iFOBT screening. The positive rate was 5.1%. 32.3% of those positive underwent diagnostic tests and 1.0% (12 patients) were confirmed as having cancer. The most common test was optical colonoscopy (77.2% of total tests), followed by BE (16.2%). From 2006 to 2009, the rate of optical colonoscopy for females increased from 55% to 82% and that of BE declined from 36% to 12%, while no significant changes were seen for males. Only one-third of those who tested positive underwent diagnostic test in the 2 years following screening iFOBT. As official guidelines for diagnostic testing of CRC recommend, optical colonoscopy is now the most commonly used diagnostic test after positive iFOBT result for enrollees in employee health insurance societies in Japan.

关键词： Colorectal Cancer Screening Diagnostic Test iFOBT Optical Colonoscopy Barium Enema

Novel technique of abdominal wall nerve block for laparoscopic colostomy: Rectus sheath block with transperitoneal approach

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World Journal of Gastrointestinal Surgery 2017年第8期9卷 182-185页

作者： Jun nagata Jun Watanabe Yusuke Sawatsubashi Masaki Akiyama koichi Arase Noritaka Minagawa Takayuki Torigoe Kotaro Hamada Yoshifumi Nakayama Keiji Hirata Department of Gastroenterological and General Surgery Wakamatsu Hospital University of Occupational and Environmental Health Department of Surgery Yokosuka Kyosai Hospital Department of Surgery University of Occupational and Environmental Health Department of Anesthesiology Wakamatsu Hospital University of Occupational and Environmental Health

A 62-year-old man who had acute rectal obstruction due to a large rectal cancer is presented. He underwent emergency laparoscopic colostomy. We used the laparoscopic puncture needle to inject analgesia with the novel transperitoneal approach. In this procedure, both ultrasound and laparoscopic images assisted with the accurate injection of analgesic to the correct layer. The combination of laparoscopic visualization and ultrasound imaging ensured infiltration of analgesic into the correct layer without causing damage to the bowel. Twentyfour hours postoperatively, the patient's pain intensity as assessed by the numeric rating scale was 0-1 during coughing, and a continuous intravenous analgesic was not needed. Colostomy is often necessary in colon obstruction. Epidural anesthesia for postoperative pain cannot be used in patients with a coagulation disorder. We report the use of a novel laparoscopic rectus sheath block for colostomy. There has been no literature described about the nerve block with transperitoneal approach. The laparoscopic rectus sheath block was performed safely and had enough analgesic efficacy for postoperative pain. This technique could be considered as an optional anesthetic regimen in acute situations.

关键词： Colorectal cancer Rectus sheath block Colon obstruction Postoperative pain

Effect of in vitro interferon-beta administration on hepatitis C virus in peripheral blood mononuclear cells as a predictive marker of clinical response to interferon treatment for chronic hepatitis C

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World Journal of Gastroenterology 2004年第5期10卷 733-736页

作者： Kaori Mochizuki Tatehiro Kagawa Shinji Takashimizu Kazuya Kawazoe Sei-Ichiro Kojima Naruhiko nagata Atsushi Nakano Yasuhiro Nishizaki koichi Shiraishi Masaru Itakura Norihito Watanabe Tetsuya Mine Shohei Matsuzaki Department of Internal Medicine Division of GastroenterologyTokai University School of MedicineBohseidaiIsehara 259-1193Japan

AIM:To test whether in vitro incubation of peripheral blood mononuclear cells (PBMC) with interferon (IFN) could efficiently decrease hepatitis C virus-RNA (HCV-RNA) amount and to analyze whether this effect was associated with clinical response to ***:Twenty-seven patients with histologically proven chronic hepatitis C were given intravenous administration of 6 million units (MU) IFN-β daily for 6 weeks followed by three times weekly for 20 weeks. PBMC collected before IFN therapy were incubated with IFN-β and HCV-RNA in PMBC was semi-quantitatively ***: Twenty-five patients completed IFN *** patients (32%) had sustained loss of serum HCV-RNA with normal serum ALT levels after IFN therapy (complete responders).HCV-RNA in PBMC was detected in all patients,whereas it was not detected in PBMC from healthy *** vitro administration of IFN-β decreased the amount of HCV-RNA in PMBC in 18 patients (72%). Eight of these patients obtained complete response. On the other hand,none of the patients whose HCV-RNA in PBMC did not decrease by IFN-β was complete responders. Multiple logistic regression analysis revealed that the decrease of HCV-RNA amount in PBMC by IFN-β was the only independent predictor for complete response (P<0.05).CONCLUSION:The effect of in vitro IFN-β on HCV in PBMC reflects clinical response and would be taken into account as a predictive marker of IFN therapy for chronic hepatitis C.

关键词： Adult Antiviral Agents dosage Drug Resistance, Viral Female Hepacivirus Hepatitis C, Chronic Humans In Vitro Interferon-beta Leukocytes, Mononuclear Male Middle Aged Predictive Value of Tests RNA, Viral