Faculty Profiles - ITO Takanori

Simplification of balloon-occluded retrograde transcatheter obliteration procedure using a coaxial double balloon catheter compared with a single-balloon catheter.

Ishizu Y, Ishigami M, Honda T, Kuzuya T, Ito T, Komada T, Fujishiro M

Japanese journal of radiology Vol. 39 ( 3 ) page： 296 - 302 2021.3

Language：English Publishing type：Research paper (scientific journal) Publisher：Japanese Journal of Radiology

Purpose: This study aimed to evaluate the usefulness of a coaxial double balloon catheter for simplification of the balloon-occluded retrograde transcatheter obliteration (BRTO) procedure compared with a single-balloon catheter. Materials and methods: Thirty-three patients who underwent BRTO with a single-balloon catheter (Single-balloon group, n = 15) or a coaxial double balloon catheter (Coaxial group, n = 18) were included, retrospectively. The frequency of additional procedures for stagnation of sclerosant including ethanol injection, coil embolization, and additional balloon occlusion for collateral draining veins; the dose of ethanolamine oleate (EO); and the complication rate and the success rate of sclerosant stagnation were evaluated. Results: Additional procedures were needed in four patients in the Coaxial group, which was significantly lower than that in the Single-balloon group (nine patients, P = 0.038). The dose of EO in the Coaxial group (11.2 ± 6.6 g) was lower, but not significantly different than that in the Single-balloon group (14.4 g ± 6.1 g, P = 0.184). The complication rate and the success rate of sclerosant stagnation were not different between the two groups. Conclusion: The use of a coaxial double balloon catheter can simplify the BRTO procedure compared with a single-balloon catheter.

DOI： 10.1007/s11604-020-01060-x

The relationship between oral-origin bacteria in the fecal microbiome and albumin-bilirubin grade in patients with hepatitis C.

Yamamoto K, Honda T, Ito T, Ishizu Y, Kuzuya T, Nakamura M, Miyahara R, Kawashima H, Ishigami M, Fujishiro M

Journal of gastroenterology and hepatology Vol. 36 ( 3 ) page： 790 - 799 2021.3

Language：English Publishing type：Research paper (scientific journal) Publisher：Journal of Gastroenterology and Hepatology Australia

Background: Bacteria of oral origin (BO) in the gut are associated with prognosis in patients with cirrhosis. The Greengenes database (gg_13_8) is widely used in microbiome analysis, but the expanded Human Oral Microbiome Database (eHOMD), a specialized database for BO, can add more detailed information. We used each database to evaluate the relationship between the albumin–bilirubin grade (ALBI) and the microbiome in patients with hepatitis C. Methods: Eighty patients were classified into the low ALBI group (LA; n = 34) or high ALBI group (HA; n = 46). Isolated DNA from stool was amplified to target the V3–4 regions of 16S rRNA. The microbiomes of the two groups were compared using gg_13_8 or eHOMD. We evaluated the associations between microbiomes and prognoses using Cox proportional hazards models. Results: At the genus level, the two groups differed significantly regarding 6 (gg_13_8) and 7 (eHOMD) types of bacteria. All types except Akkermansia are classified as BO. Both databases showed an increase in Streptococcus and Veillonella. eHOMD showed a decrease in Fusobacterium and an increase in Fretibacterium; both produce various types of short-chain fatty acids. At the species level, the two groups demonstrated significant differences in 2 (gg_13_8) and 6 (eHOMD) bacterial types. Selenomonas noxia and Streptococcus salivarius were related to poor prognosis in univariate analysis. Conclusion: The HA group demonstrated increased BO, most of which produce lactic acid or acetic acid. The correlation between the microbiome and metabolism might be related to prognosis. eHOMD was a useful database for analyzing BO.

DOI： 10.1111/jgh.15206

Progression After Molecular Targeted Agents: Hepatic Arterial Changes and Transarterial Chemoembolization in Hepatocellular Carcinoma. Open Access

Matsuda N, Imai N, Kuzuya T, Yamamoto K, Ito T, Ishizu Y, Honda T, Ishigami M, Fujishiro M

In vivo (Athens, Greece) Vol. 35 ( 2 ) page： 1185 - 1189 2021.3

Safety and efficacy of percutaneous radiofrequency ablation for hepatocellular carcinoma patients with haemophilia.

Yamamoto T, Imai N, Yamamoto K, Ito T, Ishizu Y, Honda T, Okamoto S, Kanematsu T, Suzuki N, Matsushita T, Ishigami M, Fujishiro M

Haemophilia : the official journal of the World Federation of Hemophilia Vol. 27 ( 1 ) page： 100 - 107 2021.1

Language：English Publishing type：Research paper (scientific journal) Publisher：Haemophilia

Haemophilia is an X-linked inherited bleeding disorder caused by coagulation factor deficiency. Hepatocellular carcinoma (HCC) is a major complication associated with the disease. No study thus far has investigated the safety and efficacy of percutaneous radiofrequency ablation (RFA) for HCC in patients with haemophilia. Aim: This study aimed to evaluate the safety and efficacy of RFA for HCC in haemophilia patients. Methods: From July 2008 to June 2019, 217 patients with HCC underwent 300 RFA sessions. Of these, 18 sessions were performed in ten haemophilia patients (H group) and 282 in 207 non-haemophilia patients (NH group). The patients' characteristics, incidence of haemorrhagic complications and rates of local tumour recurrence were compared between the groups. Results: A majority of the haemophilia patients received clotting factor concentrate replacement therapy before and after RFA treatment, with the aim of reaching a plasma clotting factor level of higher than 60%–80%. Twelve haemorrhagic complications were observed in the NH group (4.2%; 12/282). Major bleeding requiring control procedures was observed in two patients and minor bleeding with careful observation was noted in ten patients. No bleeding complications were observed in the H group (0/18). There were no significant differences in the 5-year local tumour recurrence rates after RFA treatment between the groups (35.0% in the H group and 32.1% in the NH group). Conclusion: RFA could be an effective and a safe method for HCC treatment in patients with haemophilia.

DOI： 10.1111/hae.14220