Publications by authors named "Ryo Oikawa"

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The Risk of Decompensation in Steatotic Liver Disease-Related Hepatocellular Carcinoma: A Comparison with Viral-Controlled Cases.
Yuki Matsushita, Tatsuya Minami, Yoshikuni Kawaguchi, Akihiko Ichida, Ryo Oikawa

Liver Cancer· December 2025

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Automatic and Real-Time Surgeon's Gazing Point Detection From Surgical Videos Using Machine Learning and Mathematical Algorithm.
Shu Sasaki, Kenji Karako, Kyoji Ito, Yuichiro Mihara, Maho Takayama, Ryo Oikawa

J Hepatobiliary Pancreat Sci· December 2025

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Simplified technique in total pancreatectomy with islet cell autotransplantation after Frey's procedure: a case report.
Ryo Oikawa, Nobuyuki Takemura, Masayuki Shimoda, Mai Nakamura, Fuminori Mihara

Surg Case Rep· November 2024

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Secondary ileal lymph node metastases from rectal cancer: a case report.
Makoto Ando, Nobuyuki Takemura, Ryo Oikawa, Yuhi Yoshizaki, Fuyuki Inagaki

Surg Case Rep· May 2024

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How to do it: rescue duct-to-duct biliary reconstruction techniques to avoid severe biliary complications of hepatic resection for hepatocellular carcinoma.
Ryo Oikawa, Kyoji Ito, Nobuyuki Takemura, Fuminori Mihara, Norihiro Kokudo

Surg Today· April 2024

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Finite Element Modeling for Biomechanical Comparisons of Multilevel Transforaminal, Posterior, and Lateral Lumbar Approaches to Interbody Fusion Augmented with Posterior Instrumentation.
Yutaro Shimooki, Hideki Murakami, Norihiro Nishida, Hirotaka Yan, Ryo Oikawa

World Neurosurg· February 2024

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Using Indocyanine Green Fluorescence Imaging to Identify an Anomalous Cystohepatic Duct During Laparoscopic Cholecystectomy.
Ryo Oikawa, Kyoji Ito, Nobuyuki Takemura, Mikiya Fujii, Mai Nakamura

Am Surg· December 2023

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Bowel perfusion demonstrated using indocyanine green fluorescence imaging in two cases of strangulated ileus.
Kyoko Nohara, Nobuyuki Takemura, Kyoji Ito, Ryo Oikawa, Syusuke Yagi

Clin J Gastroenterol· October 2022

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Comparison of the Susceptibility to Implant Failure in the Lateral, Posterior, and Transforaminal Lumbar Interbody Fusion: A Finite Element Analysis.
Ryo Oikawa, Hideki Murakami, Hirooki Endo, Hirotaka Yan, Daisuke Yamabe, Ryosuke Oikawa

World Neurosurg· August 2022

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Laparoscopic hemostasis for abdominal brunt massive hemorrhage due to endometriosis.
Shiori Seki, Kyoji Ito, Nobuyuki Takemura, Ryo Oikawa, Hikaru Koutake

Asian J Endosc Surg· April 2022

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[A patient with autoimmune pancreatitis complicated by pancreatic pseudocyst that caused colonic perforation-induced gastrointestinal bleeding].
Teruaki Inoue, Ryo Oikawa, Eri Shimura, Tatsuhiro Ito, Naoya Kaneko

Nihon Shokakibyo Gakkai Zasshi· March 2022

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Risk Factors of Atherosclerotic Celiac Artery Stenosis Among Patients Undergoing Pancreaticoduodenectomy.
Ryo Oikawa, Kyoji Ito, Nobuyuki Takemura, Fuminori Mihara, Yoshitaka Shida

Pancreas· February 2022

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Detailed anatomy and procedure of celiac artery decompression in median arcuate ligament syndrome.
Kyoji Ito, Nobuyuki Takemura, Ryo Oikawa, Fuyuki Inagaki, Fuminori Mihara

Langenbecks Arch Surg· August 2021

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Arterial communication around the pancreatic tail enabled division of the gastroduodenal artery during pancreaticoduodenectomy in patient with complete celiac artery occlusion: a case report.
Ryo Oikawa, Kyoji Ito, Nobuyuki Takemura, Fuminori Mihara, Norihiro Kokudo

Surg Case Rep· January 2020

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Olmesartan ameliorates urinary dysfunction in the spontaneously hypertensive rat via recovering bladder blood flow and decreasing oxidative stress.
Shogo Shimizu, Motoaki Saito, Harunori Oiwa, Fumiya Ohmasa, Panagiota Tsounapi, Ryo Oikawa

Neurourol Urodyn· March 2014

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Prostatic ischemia induces ventral prostatic hyperplasia in the SHR; possible mechanism of development of BPH.
Motoaki Saito, Panagiota Tsounapi, Ryo Oikawa, Shogo Shimizu, Masashi Honda

Sci Rep· January 2014

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Characterization of silodosin and naftopidil in the treatment of bladder dysfunction in the spontaneously hypertensive rat.
Motoaki Saito, Shogo Shimizu, Fumiya Ohmasa, Ryo Oikawa, Panagiota Tsounapi

Neurourol Urodyn· April 2013

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Decreased susceptibility to salt-induced hypertension in subtotally nephrectomized mice lacking the vasopressin V1a receptor.
Ryo Oikawa, Chihiro Hosoda, Yoshihisa Nasa, Takuya Daicho, Akito Tanoue

Cardiovasc Res· July 2010

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Vasopressin V1A receptor enhances baroreflex via the central component of the reflex arc.
Ryo Oikawa, Yoshihisa Nasa, Rie Ishii, Tomoyuki Kuwaki, Akito Tanoue

Eur J Pharmacol· March 2007

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Vasopressin promotes cardiomyocyte hypertrophy via the vasopressin V1A receptor in neonatal mice.
Masami Hiroyama, Shuyi Wang, Toshinori Aoyagi, Ryo Oikawa, Atsushi Sanbe

Eur J Pharmacol· March 2007

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V1a vasopressin receptors maintain normal blood pressure by regulating circulating blood volume and baroreflex sensitivity.
Taka-aki Koshimizu, Yoshihisa Nasa, Akito Tanoue, Ryo Oikawa, Yuji Kawahara

Proc Natl Acad Sci U S A· May 2006

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Possible involvement of calpain activation in pathogenesis of chronic heart failure after acute myocardial infarction.
Masaya Takahashi, Kouichi Tanonaka, Hiroyuki Yoshida, Miki Koshimizu, Takuya Daicho, Ryo Oikawa

J Cardiovasc Pharmacol· March 2006

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Effects of angiotensin I-converting enzyme inhibitor and angiotensin II type 1 receptor blocker on the right ventricular sarcoglycans and dystrophin after left coronary artery ligation.
Masaya Takahashi, Kouichi Tanonaka, Hiroyuki Yoshida, Miki Koshimizu, Ryo Oikawa

Eur J Pharmacol· October 2005

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Preferable anesthetic conditions for echocardiographic determination of murine cardiac function.
Yuji Kawahara, Kouichi Tanonaka, Takuya Daicho, Mikio Nawa, Ryo Oikawa

J Pharmacol Sci· September 2005

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Effects of ACE inhibitor and AT1 blocker on dystrophin-related proteins and calpain in failing heart.
Masaya Takahashi, Kouichi Tanonaka, Hiroyuki Yoshida, Ryo Oikawa, Miki Koshimizu

Cardiovasc Res· February 2005

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