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Dive into the research topics where Yuko Nagaoki is active.

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Featured researches published by Yuko Nagaoki.


Hepatology Research | 2012

Recent trend of clinical features in patients with hepatocellular carcinoma

Yuko Nagaoki; Hideyuki Hyogo; Mio Tanaka; Noriaki Naeshiro; Takashi Nakahara; Yoji Honda; Daisuke Miyaki; Tomokazu Kawaoka; Shintaro Takaki; Akira Hiramatsu; Koji Waki; Michio Imamura; Yoshiiku Kawakami; Shoichi Takahashi; Kazuaki Chayama

Aim:  In this study, we evaluated the clinical characteristics of hepatocellular carcinoma (HCC) because the etiology of HCC has been changing recently.


Journal of Gastroenterology and Hepatology | 2013

Stereotactic body radiation therapy combined with transcatheter arterial chemoembolization for small hepatocellular carcinoma

Yohji Honda; Tomoki Kimura; Tomoki Kobayashi; Takayuki Fukuhara; Keiichi Masaki; Takashi Nakahara; Noriaki Naeshiro; Atsushi Ono; Daisuke Miyaki; Yuko Nagaoki; Tomokazu Kawaoka; Shintaro Takaki; Akira Hiramatsu; Masaki Ishikawa; Hideaki Kakizawa; Masahiro Kenjo; Shoichi Takahashi; Kazuo Awai; Yasushi Nagata; Kazuaki Chayama

To compare the tumor control and safety of stereotactic body radiation therapy (SBRT) combined with transcatheter arterial chemoembolization (TACE) for small, solitary, and hypervascular hepatocellular carcinoma (HCC) with TACE alone.


Oncology | 2012

Evaluation of the mRECIST and α-fetoprotein ratio for stratification of the prognosis of advanced-hepatocellular-carcinoma patients treated with sorafenib.

Tomokazu Kawaoka; Eisuke Murakami; Takashi Nakahara; Noriaki Naeshiro; Mio Tanaka; Yoji Honda; Daisuke Miyaki; Yuko Nagaoki; Shintaro Takaki; Akira Hiramatsu; Koji Waki; Shoichi Takahashi; Kazuaki Chayama

Objective: To compare the assessment of response and prognosis of patients to sorafenib treatment by the Response Evaluation Criteria in Solid Tumors (RECIST), modified RECIST (mRECIST), α-fetoprotein (AFP) and des-γ-carboxy prothrombin (DCP). Methods: Sixty-six patients with advanced hepatocellular carcinoma (HCC) treated with sorafenib were enrolled in this retrospective study. The response to treatment was evaluated by RECIST, mRECIST and changes in AFP and DCP. Results: The median survival time of all patients was 8.6 months. The median time to radiological progression was 3.3 months. The response rates [complete response (CR) + partial response (PR)] by RECIST and mRECIST were 3.0 and 9.0%, respectively, while the disease control rates [CR + PR + stable disease (SD)] were 50 and 50%, respectively. Assessment by mRECIST of overall survival provided a better stratification of the patients according to the response to treatment (p = 0.009) than RECIST (p = 0.09). Assessment of overall survival by a change in AFP ratio of ≤1 at 8 weeks was better than that of >1 at 8 weeks (p = 0.002). The DCP ratio was not useful for assessment of overall survival. Multivariate analysis identified mRECIST response (CR + PR + SD; p = 0.001), AFP ratio at 8 weeks (≤1; p = 0.046) and Child-Pugh A before treatment (p = 0.012) as significant and independent determinants of survival. The combination of AFP ratio at 8 weeks, assessment by mRECIST and Child-Pugh score before treatment allows stratification of prognosis of patients treated with sorafenib. Conclusion: The combination of mRECIST and AFP ratio is useful for the assessment of prognosis of patients with advanced HCC treated with sorafenib.


Journal of Gastroenterology and Hepatology | 2016

Development of hepatocellular carcinoma in patients with hepatitis C virus infection who achieved sustained virological response following interferon therapy: A large‐scale, long‐term cohort study

Yuko Nagaoki; Norihito Nakano; Fumi Shinohara; Yuki Nakamura; Masahiro Hatooka; Kei Morio; Hiromi Kan; Hatsue Fujino; Tomoki Kobayashi; Takayuki Fukuhara; Keiichi Masaki; Atsushi Ono; Takashi Nakahara; Tomokazu Kawaoka; Daiki Miki; Masataka Tsuge; Akira Hiramatsu; Michio Imamura; Shoichi Takahashi; Yoshiiku Kawakami; Hidenori Ochi; Kazuaki Chayama

We assessed the risk factors for the development of hepatocellular carcinoma (HCC) following successful eradication of hepatitis C virus (HCV) with interferon (IFN) therapy in a long‐term, large‐scale cohort study.


Hepatology Research | 2013

Utility of controlled attenuation parameter measurement for assessing liver steatosis in Japanese patients with chronic liver diseases

Keiichi Masaki; Shintaro Takaki; Hideyuki Hyogo; Tomoki Kobayashi; Takayuki Fukuhara; Noriaki Naeshiro; Yoji Honda; Takashi Nakahara; Atsushi Ohno; Daisuke Miyaki; Eisuke Murakami; Yuko Nagaoki; Tomokazu Kawaoka; Masataka Tsuge; Nobuhiko Hiraga; Akira Hiramatsu; Michio Imamura; Yoshiiku Kawakami; Hidenori Ochi; Shoichi Takahashi; Koji Arihiro; Kazuaki Chayama

Steatosis is a common histological feature of chronic liver disease, especially alcoholic and non‐alcoholic fatty liver disease, as well as chronic hepatitis C. A recent study showed that evaluating the controlled attenuation parameter (CAP) with transient elastography was an efficient way of non‐invasively determining the severity of hepatic steatosis. The objective of this study was to prospectively evaluate the utility of CAP for diagnosing steatosis in patients with chronic liver disease.


Journal of Gastroenterology and Hepatology | 2012

Hepatic arterial infusion chemotherapy for advanced hepatocellular carcinoma according to Child-Pugh classification.

Daisuke Miyaki; Yohji Honda; Noriaki Naeshiro; Takashi Nakahara; Mio Tanaka; Yuko Nagaoki; Tomokazu Kawaoka; Shintaro Takaki; Koji Waki; Akira Hiramatsu; Shoichi Takahashi; Masaki Ishikawa; Hideaki Kakizawa; Kazuo Awai; Kazuaki Chayama

We compared the treatment response, survival, and safety to hepatic arterial infusion chemotherapy (HAIC) in patients with advanced hepatocellular carcinoma (HCC) according to Child–Pugh (CP) score.


Hepatology Research | 2016

Improvement of renal dysfunction in a patient with hepatitis C virus‐related liver cirrhosis by daclatasvir and asunaprevir combination therapy: A case report

Masataka Tsuge; Akira Hiramatsu; Fumi Shinohara; Norihito Nakano; Yuki Nakamura; Masahiro Hatooka; Kei Morio; Reona Morio; Hiromi Kan; Hatsue Fujino; Takuro Uchida; Tomoki Kobayashi; Takayuki Fukuhara; Keiichi Masaki; Takashi Nakahara; Atsushi Ono; Yuko Nagaoki; Daiki Miki; Tomokazu Kawaoka; Nobuhiko Hiraga; Michio Imamura; Yoshiiku Kawakami; Hidenori Ochi; C. Nelson Hayes; Kazuaki Chayama

Recently, treatments for chronic hepatitis C virus (HCV) infection have been drastically improved by the development of direct‐acting antiviral agents. In September 2014, dual oral therapy using daclatasvir (DCV) and asunaprevir (ASV) was approved for the treatment of chronic HCV infection in Japan. We treated a patient with HCV‐related liver cirrhosis with severe leg edema due to chronic renal dysfunction using this dual oral therapy. Although serum alanine aminotransferase increased rapidly during the first week of treatment, the antiviral therapy was able to continue, and liver function recovered spontaneously. After 1 month of treatment, serum HCV RNA became continuously undetectable, and serum albumin level gradually increased. Throughout the therapy, serum creatinine level nearly normalized, and leg edema gradually improved. These improvements continued after the combination therapy was completed. HCV RNA remained undetectable following the end of therapy, and sustained virological response at 12 weeks was achieved. It has been reported that chronic HCV infection is associated with renal dysfunction and that HCV eradication can improve it. DCV and ASV combination therapy is safe for patients who have renal dysfunction and may be a suitable therapy for chronic hepatitis C patients with renal dysfunction.


Journal of Computer Assisted Tomography | 2016

Preoperative Fluorine 18 Fluorodeoxyglucose Positron Emission Tomography/Computed Tomography for Prediction of Microvascular Invasion in Small Hepatocellular Carcinoma.

Tomoki Kobayashi; Fumi Honda; Norihito Nakano; Yuki Nakamura; Masahiro Hatooka; Kei Morio; Reona Morio; Takayuki Fukuhara; Keiichi Masaki; Yuko Nagaoki; Tomokazu Kawaoka; Masataka Tsuge; Akira Hiramatsu; Michio Imamura; Yoshiiku Kawakami; Hideki Ohdan; Kazuo Awai; Kazuaki Chayama

Objectives This study aimed to assess the value of preoperative fluorine 18 fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET-CT) for predicting microvascular invasion (MVI) in small hepatocellular carcinoma (HCC). Methods We retrospectively examined 60 patients who received 18F-FDG PET-CT prior to hepatic resection for small HCC (⩽30 mm) with subsequent MVI confirmation by histopathology. The associations between PET-positive status and tumor factors were assessed. Furthermore, independent predictors for MVI and diagnostic utility of each MVI predictor were assessed. Results Multivariate analysis revealed the presence of MVI as an independent predictor of PET-positive status (P = 0.023). Maximum standardized uptake value (SUVmax) of 3.2 or greater (P = 0.017) and lens culinaris agglutinin a-reactive &agr;-fetoprotein (AFP-L3) 19% or greater (P = 0.010) were independent predictors of MVI. Areas under the receiver operating characteristic curves for SUVmax of 3.2 or greater, AFP-L3 19% or greater, and both factors combined for predicting MVI were 0.712 (0.493-0.932), 0.755 (0.563-0.947), and 0.856 (0.721-0.991), respectively. The sensitivity and specificity for predicting MVI were 77.8% and 74.5% for SUVmax of 3.2 or greater, 66.7% and 84.3% for AFP-L3 19% or greater, and 88.9% and 82.4% for the combination. Conclusions 18F-FDG PET-CT and AFP-L3 may be useful for predicting MVI in small HCC, and the combination of the 2 factors provided reliable assessment for selection of suitable hepatic resection and liver transplantation candidates.


Hepatology Research | 2014

Interferon lambda 4 polymorphism affects on outcome of telaprevir, pegylated interferon and ribavirin combination therapy for chronic hepatitis C

Yuko Nagaoki; Michio Imamura; Yoshiiku Kawakami; Hiromi Kan; Hatsue Fujino; Takayuki Fukuhara; Tomoki Kobayashi; Atsushi Ono; Takashi Nakahara; Noriaki Naeshiro; Ayako Urabe; Satoe Yokoyama; Daisuke Miyaki; Eisuke Murakami; Tomokazu Kawaoka; Masataka Tsuge; Akira Hiramatsu; Shoichi Takahashi; C. Nelson Hayes; Hidenori Ochi; Kazuaki Chayama

The predictive value of the recently identified interferon‐λ (IFNL)4 polymorphism on the outcome of telaprevir (TVR), pegylated interferon (PEG IFN) plus ribavirin (RBV) combination therapy for chronic hepatitis C is unknown.


Hepatology Research | 2012

Hepatic arterial infusion chemotherapy using 5-fluorouracil and systemic interferon-α for advanced hepatocellular carcinoma in combination with or without three-dimensional conformal radiotherapy to venous tumor thrombosis in hepatic vein or inferior vena cava

Eisuke Murakami; Daisuke Miyaki; Yuko Nagaoki; Yoshio Katamura; Tomokazu Kawaoka; Shintaro Takaki; Akira Hiramatsu; Koji Waki; Shoichi Takahashi; Tomoki Kimura; Masahiro Kenjo; Yasushi Nagata; Masaki Ishikawa; Hideaki Kakizawa; Kazuo Awai; Kazuaki Chayama

Aim:  We investigated the efficacy of hepatic arterial infusion chemotherapy (HAIC) using 5‐fluorouracil (5‐FU) and systemic interferon (IFN)‐α (HAIC‐5‐FU/IFN) for advanced hepatocellular carcinoma (HCC) with venous tumor thrombosis (VTT) in the hepatic vein trunk (Vv2) or inferior vena cava (Vv3).

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