Akihiko Hachiya
Toho University
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Publication
Featured researches published by Akihiko Hachiya.
Digestive Endoscopy | 1995
Yoshihisa Urita; Mamoru Nishevo; Toshio Kurita; Hiroshi Koyama; Yasunori Miyafuji; Masahiko Sasajima; Eiko Kanda; Hisashi Ariki; Hiroshi Hojo; Fumihiro Miura; Takashi Yoneya; Eisaku Kondo; Hiroshi Matsuzaki; Akihiko Hachiya; Yukihiko Naruki; Sachio Otsuka
We attempted to investigate the fine mucosal patterns of inlet patches using a transparent‐tip‐hood‐fitted magnifying electronic endoscope (Olympus, GIF‐200Z). The prevalence of inlet patch was 10.1%, 26 out of 257 patients undergoing screening endoscopic examination using a GIF‐200Z. This rate was higher than that of previous reports in Japan, higher in the young group than in the aged group, and higher in males than in females. The mean inlet patch size, measured by the new method using a transparent hood, was 5.2 mm. Large inlet patches, above 8.1 mm, were found more frequently in males than in females. The number of inlet patches in one patient was one in 19 patients and two in seven. The inlet patches were oval and had a smooth margin in 23 (69.7%) cases, and irregular in 10 (30.3%). The oval patches with smooth margins were significantly larger than those with an irregular form. The fine mucosal pattern of inlet patches was mixed with B, BC and C type. Inlet patches with acid production were suggested to be fewer in number than expected, and patients with an inlet patch appear to have minimal, if any, complaints. A transparent‐tip‐hood‐fitted magnifying electronic endoscope was thought to facilitate accurate diagnosis of the inlet patch.
Digestive Endoscopy | 1993
Yoshihisa Urita; Masue Mutoh; Manabu Ishihara; Akihiko Hachiya; Shuichi Yamada; Eisaku Kondoh; Naoto Nakatani; Fumie Ihara; Hiroshi Matsuzaki; Masayuki Nakata; Motonobu Ozaki; Yukihiko Naruki; Keiichi Machida; Sachio Ohtsuka
Abstract: Endoscopic injection sclerotherapy (EIS) is widely accepted as a means of treating esophageal varices. However, various complications of EIS have been reported. To investigate the cause of chest complications after EIS, chest CT and bronchofiberscopy (BF) were carried out in patients undergoing EIS. A contrast medium was added to the sclerosant in a 1: 4 ratio, and a chest CT examination was performed 30 minutes after the EIS procedure. BF was performed before and after EIS.
Digestive Endoscopy | 2005
Shigeru Nakano; Akihiko Hachiya
Background: The effect of eradication of esophageal varices on the collateral veins beside the esophagogastric junction in portal hypertensive patients remains unclear.
Gastrointestinal Endoscopy | 1996
Yoshihisa Urita; Eisaku Kondo; Masue Muto; Shuich Yamada; Akihiko Hachiya; Manabu Ishihara; Motonobu Ozaki; Mamoru Nishino; Yukihiko Naruki; Sachio Otsuka
Acta Gastro-Enterologica Belgica | 2002
Yoshinori Kikuchi; Yoshimi Hagisawa; Keiji Takahashi; Kazuo Hike; Tomihiro Miura; Yoshihisa Urita; Akihiko Hachiya; Kazunari Iida; Kazumasa Miki; Chikako Hasegawa; Shigeharu Hamatani; Myota Miura
Japanese Journal of Portal Hypertension | 2001
Mari Fujii; Shigeru Nakano; Akihiko Hachiya
Acta Gastro-Enterologica Belgica | 2001
Yoshiaki Ebuchi; Akihiko Hachiya; Tadashi Iwasaki; Naoki Okano; Tomihiro Miura; Masahiko Katayama; Yoshiko Yoshinaga; Kazunari Iida; Kazumasa Miki; Tadaaki Siba
Progress of Digestive Endoscopy(1972) | 1999
Eiko Kanda; Naotaka Torii; Masato Katagiri; Hidenori Kurakata; Shigeru Nakano; Syuichi Yamada; Kouji Matsuzaki; Akihiko Hachiya; Kazumasa Miki; Sachio Ootsuka
Gastroenterol Endosc | 1997
Hiroshi Matsuzaki; Eisaku Kondou; Toshio Kurita; Takashi Yoneya; Shigeru Nakano; Hiroshi Houjou; Hiroshi Koyama; Kazue Matsuzaki; Akihiko Hachiya; Mamoru Nishino; Yukihiko Naruki; Sachio Ootsuka
Acta Gastro-Enterologica Belgica | 1992
Yoshihisa Urita; Masue Mutoh; Shuuichi Yamada; Naoto Nakatani; Eisaku Kondoh; Akihiko Hachiya; Manabu Ishihara; Motonobu Ozaki; Yukihiko Naruki; Sachio Ohtsuka
