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M. Ohta · SciRah

Researcher profile · Semantic Scholar

M. Ohta

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M. Ohta — researcher profile on SciRah

h-index: 38
Works: 195
Citations: 4,515

Most-cited papers

Impact of Anatomical Resection for Hepatocellular Carcinoma With Microportal Invasion (vp1): A Multi-institutional Study by the Kyushu Study Group of Liver Surgery.
M. Hidaka, S. Eguchi, K. Okuda, T. Beppu +10 more
2020Annals of Surgery82 citations Open access
Semantic Scholar
Efficacy of Sleeve Gastrectomy with Duodenal-Jejunal Bypass for the Treatment of Obese Severe Diabetes Patients in Japan: a Retrospective Multicenter Study
T. Naitoh, K. Kasama, Yosuke Seki, M. Ohta +8 more
2018Obesity Surgery67 citations
Semantic Scholar
Long-Term Outcomes of Bariatric and Metabolic Surgery in Japan: Results of a Multi-Institutional Survey
H. Haruta, K. Kasama, M. Ohta, Akira Sasaki +9 more
2017Obesity Surgery66 citations
Semantic Scholar
Bariatric/Metabolic Surgery in the Asia-Pacific Region: APMBSS 2018 Survey
M. Ohta, Yosuke Seki, S. Wong, Cun-Chuan Wang +16 more
2018Obesity Surgery56 citations
Semantic Scholar
Operative Timing of Laparoscopic Cholecystectomy for Acute Cholecystitis in a Japanese Institute
M. Ohta, Y. Iwashita, K. Yada, Tadashi Ogawa +6 more
2012Jsls-journal of The Society of Laparoendoscopic Surgeons55 citations Open access
Semantic Scholar
Prognostic Impact of Preoperative Lymph Node Enlargement in Intrahepatic Cholangiocarcinoma: A Multi-Institutional Study by the Kyushu Study Group of Liver Surgery
T. Adachi, S. Eguchi, T. Beppu, S. Ueno +10 more
2015Annals of Surgical Oncology44 citations
Semantic Scholar
Benefit of laparoscopic liver resection in high body mass index patients.
H. Uchida, Y. Iwashita, Kunihiro Saga, Hiroomi Takayama +5 more
2016World Journal of Gastroenterology40 citations Open access
Semantic Scholar
Clinicopathological characteristics of combined hepatocellular cholangiocarcinoma from the viewpoint of patient prognosis after hepatic resection: High rate of early recurrence and its predictors
Y. Yamashita, S. Aishima, Yosuke Nakao, T. Yoshizumi +13 more
2020Hepatology Research38 citations
Semantic Scholar
Background characteristics and postoperative outcomes of insufficient weight loss after laparoscopic sleeve gastrectomy in Japanese patients
Atsuhito Saiki, Takashi Yamaguchi, Shou Tanaka, Akira Sasaki +24 more
2019Annals of Gastroenterological Surgery38 citations Open access
Semantic Scholar
Fucosyltransferase 8 plays a crucial role in the invasion and metastasis of pancreatic ductal adenocarcinoma
Kazuhiro Tada, M. Ohta, S. Hidano, Kiminori Watanabe +10 more
2020Surgery today (Print)37 citations
Semantic Scholar
Current status of laparoscopic bariatric/metabolic surgery in Japan: The sixth nationwide survey by the Japan Consortium of Obesity and Metabolic Surgery
M. Ohta, K. Kasama, A. Sasaki, T. Naitoh +13 more
2020Asian Journal of Endoscopic Surgery36 citations Open access
Semantic Scholar
Altered glycosylation associated with dedifferentiation of hepatocellular carcinoma: a lectin microarray-based study
Hiroomi Takayama, M. Ohta, Y. Iwashita, H. Uchida +3 more
2020BMC Cancer33 citations Open access
Semantic Scholar
CXCL12 expression in intrahepatic cholangiocarcinoma is associated with metastasis and poor prognosis
Tatsunori Miyata, Y. Yamashita, T. Yoshizumi, M. Shiraishi +5 more
2019Cancer Science33 citations Open access
Semantic Scholar
Prognostic Impact of Preoperative Lymph Node Enlargement in Intrahepatic Cholangiocarcinoma : A Multi-Institutional Study by the Kyushu Study Group of Liver Surgery
T. Adachi, S. Eguchi, T. Beppu, Shinichi Ueno +10 more
201531 citations
Semantic Scholar
Mammalian target of rapamycin signaling activation patterns in pancreatic neuroendocrine tumors
Yoko Komori, K. Yada, M. Ohta, H. Uchida +6 more
2014Journal of hepato-biliary-pancreatic sciences31 citations
Semantic Scholar
Expression of Matrix Metalloproteinase-7 is an Unfavorable Prognostic Factor in Intrahepatic Cholangiocarcinoma
T. Hirashita, Y. Iwashita, M. Ohta, Yoko Komori +3 more
2012Journal of Gastrointestinal Surgery30 citations Open access
Semantic Scholar
Secondary Unconjugated Bile Acids Induce Hepatic Stellate Cell Activation
Kunihiro Saga, Y. Iwashita, S. Hidano, Y. Aso +10 more
2018International Journal of Molecular Sciences29 citations Open access
Semantic Scholar
Intraductal papillary mucinous neoplasms of the pancreas complicated with intraductal hemorrhage, perforation, and fistula formation: CT and MR imaging findings with pathologic correlation
Yasunari Yamada, H. Mori, N. Hijiya, S. Matsumoto +4 more
2012Abdominal Imaging29 citations
Semantic Scholar
Surgical management of recurrent intrahepatic cholangiocarcinoma: predictors, adjuvant chemotherapy, and surgical therapy for recurrence: A multi‐institutional study by the Kyushu Study Group of Liver Surgery
Y. Yamashita, K. Shirabe, T. Beppu, S. Eguchi +12 more
2017Annals of Gastroenterological Surgery28 citations Open access
Semantic Scholar
Effect of pre-firing compression on the prevention of pancreatic fistula in distal pancreatectomy.
T. Hirashita, M. Ohta, K. Yada, Kazuhiro Tada +6 more
2018American Journal of Surgery27 citations
Semantic Scholar
Portal Vein Embolization Followed by Right-Side Hemihepatectomy for Hepatocellular Carcinoma Patients: A Japanese Multi-Institutional Study.
T. Beppu, H. Okabe, K. Okuda, S. Eguchi +12 more
2016Journal of the American College of Surgeons27 citations
Semantic Scholar
Effects of Sleeve Gastrectomy on Lipid Metabolism in an Obese Diabetic Rat Model
Yuichiro Kawano, M. Ohta, T. Hirashita, T. Masuda +2 more
2013Obesity Surgery27 citations
Semantic Scholar
Effects of sleeve gastrectomy and gastric banding on the hypothalamic feeding center in an obese rat model
T. Kawasaki, M. Ohta, Yuichiro Kawano, T. Masuda +3 more
2015Surgery today (Print)26 citations
Semantic Scholar
Prognostic factors of non-ampullary duodenal adenocarcinoma
T. Hirashita, M. Ohta, Kazuhiro Tada, Kunihiro Saga +5 more
2018Japanese Journal of Clinical Oncology24 citations
Semantic Scholar
Long-term outcomes of laparoscopic versus open splenectomy for immune thrombocytopenia
Kazuhiro Tada, M. Ohta, Kunihiro Saga, Hiroomi Takayama +5 more
2018Surgery today (Print)23 citations
Semantic Scholar
Significance of neoadjuvant therapy for borderline resectable pancreatic cancer: a multicenter retrospective study
H. Kurahara, H. Shinchi, T. Ohtsuka, Y. Miyasaka +18 more
2019Langenbeck's archives of surgery (Print)22 citations
Semantic Scholar
Anterior approach for right hepatectomy with hanging maneuver for hepatocellular carcinoma: a multi‐institutional propensity score‐matching study
T. Beppu, K. Imai, K. Okuda, S. Eguchi +14 more
2017Journal of hepato-biliary-pancreatic sciences22 citations
Semantic Scholar
Clinical significance of upper gastrointestinal endoscopy before laparoscopic bariatric procedures in Japanese patients
Y. Endo, M. Ohta, Kazuhiro Tada, Kunihiro Saga +5 more
2018Surgery today (Print)21 citations
Semantic Scholar
Fucosylation is associated with the malignant transformation of intraductal papillary mucinous neoplasms: a lectin microarray-based study
Kiminori Watanabe, M. Ohta, K. Yada, Yoko Komori +3 more
2016Surgery today (Print)20 citations
Semantic Scholar
Improvement of non‐alcoholic fatty liver disease after laparoscopic sleeve gastrectomy in Japanese obese patients
Y. Endo, M. Ohta, Kazuhiro Tada, Hiroaki Nakanuma +7 more
2019Annals of Gastroenterological Surgery19 citations Open access
Semantic Scholar
Bioelectrical Impedance Analysis Results for Estimating Body Composition Are Associated with Glucose Metabolism Following Laparoscopic Sleeve Gastrectomy in Obese Japanese Patients
Yoshinori Ozeki, T. Masaki, Yuichi Yoshida, M. Okamoto +6 more
2018Nutrients18 citations Open access
Semantic Scholar
Risk factors of liver failure after right-sided hepatectomy.
T. Hirashita, M. Ohta, Y. Iwashita, K. Iwaki +4 more
2013American Journal of Surgery18 citations
Semantic Scholar
Extrahepatic bile duct cancer: invasion of the posterior hepatic plexuses--evaluation using multidetector CT.
Yasunari Yamada, H. Mori, N. Hijiya, S. Matsumoto +8 more
2012Radiology18 citations
Semantic Scholar
Laparoscopic liver resection in cirrhotic patients with specific reference to a difficulty scoring system
H. Uchida, Y. Iwashita, Kazuhiro Tada, Kunihiro Saga +5 more
2018Langenbeck's archives of surgery (Print)17 citations
Semantic Scholar
Clinical Utility of the Difficulty Scoring System for Predicting Surgical Time of Laparoscopic Liver Resection
H. Uchida, Y. Iwashita, Kunihiro Saga, Hiroomi Takayama +5 more
2016Journal of laparoendoscopic & advanced surgical techniques. Part A17 citations
Semantic Scholar
Laparoscopic stomach‐partitioning gastrojejunostomy is an effective palliative procedure to improve quality of life in patients with malignant gastroduodenal outlet obstruction
H. Eguchi, K. Yada, K. Shibata, Toshifumi Matsumoto +6 more
2012Asian Journal of Endoscopic Surgery17 citations
Semantic Scholar
Results of a national survey on laparoscopic bariatric surgery in Japan, 2000–2009
M. Ohta, S. Kitano, K. Kasama, Isao Kawamura +7 more
2011Asian Journal of Endoscopic Surgery17 citations
Semantic Scholar
Short internal pancreatic stent reduces pancreatic fistula in pancreatoduodenectomy
T. Hirashita, Y. Iwashita, Atsuro Fujinaga, Hiroaki Nakanuma +5 more
2020Langenbeck's archives of surgery (Print)15 citations
Semantic Scholar
Effects of different pressure levels of CO2 pneumoperitoneum on liver regeneration after liver resection in a rat model
Yoko Komori, Y. Iwashita, M. Ohta, Yuichiro Kawano +2 more
2014Surgical Endoscopy15 citations
Semantic Scholar
Dihydrolipoyl histidinate zinc complex, a new antioxidant, attenuates hepatic ischemia‐reperfusion injury in rats
T. Masuda, Y. Iwashita, S. Hagiwara, M. Ohta +3 more
2011Journal of Gastroenterology and Hepatology15 citations
Semantic Scholar
Surgical and oncological outcomes of laparoscopic versus open radical antegrade modular pancreatosplenectomy for pancreatic ductal adenocarcinoma
T. Hirashita, Y. Iwashita, Atsuro Fujinaga, Hiroaki Nakanuma +5 more
2021Surgery today (Print)14 citations Open access
Semantic Scholar
“Peripancreatic strands appearance” in pancreatic body and tail carcinoma: evaluation by multi-detector CT with pathological correlation
S. Matsumoto, H. Mori, M. Kiyonaga, M. Sai +8 more
2012Abdominal Imaging14 citations
Semantic Scholar
Prediction of Long-Term Diabetes Remission After Metabolic Surgery in Obese East Asian Patients: a Comparison Between ABCD and IMS Scores
M. Ohta, Yosuke Seki, T. Ohyama, Rixing Bai +23 more
2021Obesity Surgery13 citations Open access
Semantic Scholar
Effects of visceral fat resection and gastric banding in an obese diabetic rat model.
T. Hirashita, M. Ohta, Y. Endo, T. Masuda +2 more
2012Surgery13 citations
Semantic Scholar
Implications of portal vein thrombosis after splenectomy for patients with idiopathic portal hypertension
T. Hirashita, M. Ohta, S. Kai, T. Masuda +4 more
2011Surgery today (Print)13 citations
Semantic Scholar
Risk factors of unplanned intraoperative conversion to hand-assisted laparoscopic surgery or open surgery in laparoscopic liver resection
T. Masuda, Y. Endo, Shota Amano, Masahiro Kawamura +8 more
2022Langenbeck's archives of surgery (Print)12 citations
Semantic Scholar
Changes of Short-Chain Fatty Acids and Their Receptors in an Obese Rat Model After Sleeve Gastrectomy
Atsuro Fujinaga, M. Ohta, Y. Endo, Hiroaki Nakanuma +7 more
2022Obesity Surgery12 citations
Semantic Scholar
Relationships between computed tomography-assessed density, abdominal fat volume, and glucose metabolism after sleeve gastrectomy in Japanese patients with obesity.
Yoshinori Ozeki, T. Masaki, Yuichi Yoshida, M. Okamoto +6 more
2019Endocrine journal12 citations Open access
Semantic Scholar
Effects of Sleeve Gastrectomy on Blood Pressure and the Renal Renin–Angiotensin System in Rats with Diet‐Induced Obesity
Yuichi Yoshida, Koro Gotoh, T. Masaki, Yoshinori Ozeki +9 more
2019Obesity10 citations
Semantic Scholar
Surgical Outcomes of Laparoscopic Liver Resection in Elderly Patients: A Comparative Study From a Single Center
H. Uchida, Y. Iwashita, Kiminori Watanabe, Hiroomi Takayama +5 more
2015Surgical laparoscopy, endoscopy & percutaneous techniques10 citations
Semantic Scholar

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