Akira Umemura

Publication Activity (10 Years)

Years Active: 2014-2024
Publications (10 Years): 28

Top Topics

Roux En Y Gastric Bypass

Top Venues

Obesity surgery

World journal of surgery

Endocrine journal

Case reports in surgery

This page only lists publications with an associated author ORCID identifier.

Publications

Akira Umemura, Akira Sasaki, Hideki Kumagai, Yota Tanahashi, Takafumi Iwasaki, Hiroyuki Nitta
Relationships Between Changes in Serum Ketone Body Levels and Metabolic Effects in Patients with Severe Obesity Who Underwent Laparoscopic Sleeve Gastrectomy. Obesity surgery 34 (7) (2024)
Akira Umemura, Hiroyuki Nitta, Daiki Takeda, Hirokatsu Katagiri, Shoji Kanno, Akira Sasaki
Transthoracic transdiaphragmatic approach in laparoscopic liver resection for hepatocellular carcinoma in a patient with severe obesity and history of deceased donor liver transplantation. Asian journal of endoscopic surgery 17 (2) (2024)
Akira Umemura, Akira Sasaki, Hideki Kumagai, Yota Tanahashi, Takafumi Iwasaki, Hiroyuki Nitta
Relationships Between Changes in Serum Ketone Body Levels and Metabolic Effects in Patients with Severe Obesity Who Underwent Laparoscopic Sleeve Gastrectomy. Obesity surgery 34 (7) (2024)
Akira Umemura, Akira Sasaki, Hideki Kumagai, Yota Tanahashi, Takafumi Iwasaki, Hiroyuki Nitta
Relationships Between Changes in Serum Ketone Body Levels and Metabolic Effects in Patients with Severe Obesity Who Underwent Laparoscopic Sleeve Gastrectomy. Obesity surgery 34 (7) (2024)
Akira Umemura, Akira Sasaki, Hideki Kumagai, Yota Tanahashi, Takafumi Iwasaki, Hiroyuki Nitta
Relationships Between Changes in Serum Ketone Body Levels and Metabolic Effects in Patients with Severe Obesity Who Underwent Laparoscopic Sleeve Gastrectomy. Obesity surgery 34 (7) (2024)
Akira Umemura, Akira Sasaki, Hideki Kumagai, Yota Tanahashi, Takafumi Iwasaki, Hiroyuki Nitta
Relationships Between Changes in Serum Ketone Body Levels and Metabolic Effects in Patients with Severe Obesity Who Underwent Laparoscopic Sleeve Gastrectomy. Obesity surgery (2024)
Hideki Kumagai, Akira Sasaki, Akira Umemura, Keisuke Kakisaka, Takeshi Iwaya, Satoshi S Nishizuka
Effects of laparoscopic sleeve gastrectomy on nonalcoholic fatty liver disease and TGF-β signaling pathway. Endocrine journal 71 (2) (2023)
Akira Umemura, Akira Sasaki
Invited commentary: The outcome of closure of inguinal hernia with laparoscopic percutaneous extraperitoneal closure in young adults. World journal of surgery 48 (2) (2023)
Akira Umemura, Akira Sasaki
Invited commentary: The outcome of closure of inguinal hernia with laparoscopic percutaneous extraperitoneal closure in young adults. World journal of surgery 48 (2) (2023)
Akira Umemura, Akira Sasaki
Invited commentary: The outcome of closure of inguinal hernia with laparoscopic percutaneous extraperitoneal closure in young adults. World journal of surgery 48 (2) (2023)
Hideki Kumagai, Akira Sasaki, Akira Umemura, Keisuke Kakisaka, Takeshi Iwaya, Satoshi S Nishizuka
Effects of laparoscopic sleeve gastrectomy on nonalcoholic fatty liver disease and TGF-β signaling pathway. Endocrine journal (2023)
Hirokatsu Katagiri, Hiroyuki Nitta, Syoji Kanno, Akira Umemura, Daiki Takeda, Taro Ando, Satoshi Amano, Akira Sasaki
Safety and Feasibility of Laparoscopic Parenchymal-Sparing Hepatectomy for Lesions with Proximity to Major Vessels in Posterosuperior Liver Segments 7 and 8. Cancers 15 (7) (2023)
Akira Umemura, Akira Sasaki, Hisataka Fujiwara, Kazuho Harada, Satoshi Amano, Naoto Takahashi, Yota Tanahashi, Takayuki Suto
Comparison of olanexidine versus povidone-iodine as a preoperative antiseptic for reducing surgical site infection in both scheduled and emergency gastrointestinal surgeries: A single-center randomized clinical trial. Annals of gastroenterological surgery 7 (5) (2023)
Akira Umemura, Hiroyuki Nitta, Hirokatsu Katagiri, Akira Sasaki
Standardization of pure laparoscopic extended cholecystectomy with en-bloc lymphadenectomy of the hepatoduodenal ligament for gallbladder cancers. Asian journal of endoscopic surgery 16 (3) (2023)
Hideki Kumagai, Akira Umemura, Hiroyuki Nitta, Hirokatsu Katagiri, Masao Nishiya, Noriyuki Uesugi, Tamotsu Sugai, Akira Sasaki
Extensively Invasive Gallbladder Cancer from Intracholecystic Papillary Neoplasm Treated with Pylorus-Preserving Pancreaticoduodenectomy and Extended Cholecystectomy: A Case Report and Literature Review. Case reports in surgery 2023 (2023)
Hideki Kumagai, Akira Sasaki, Akira Umemura, Keisuke Kakisaka, Takeshi Iwaya, Satoshi S Nishizuka
Effects of laparoscopic sleeve gastrectomy on nonalcoholic fatty liver disease and TGF-β signaling pathway. Endocrine journal 71 (2) (2023)
Shingo Yanari, Akira Sasaki, Akira Umemura, Yasushi Ishigaki, Haruka Nikai, Tsuguo Nishijima, Shigeru Sakurai
Therapeutic effect of laparoscopic sleeve gastrectomy on obstructive sleep apnea and relationship of type 2 diabetes in Japanese patients with severe obesity. Journal of diabetes investigation 13 (6) (2022)
Akira Umemura, Akira Sasaki, Hiroyuki Nitta, Hirokatsu Katagiri, Shoji Kanno, Daiki Takeda, Taro Ando, Satoshi Amano, Masao Nishiya, Noriyuki Uesugi, Tamotsu Sugai
A novel second-stage surgical strategy for severely obese patient with pancreatic neuroendocrine tumor: a case report. Surgical case reports 8 (1) (2022)
Naoto Takahashi, Akira Sasaki, Akira Umemura, Tamotsu Sugai, Keisuke Kakisaka, Yasushi Ishigaki
Identification of a Fatty Acid for Diagnosing Non-Alcoholic Steatohepatitis in Patients with Severe Obesity Undergoing Metabolic Surgery. Biomedicines 10 (11) (2022)
Akira Umemura, Akira Sasaki, Haruka Nikai, Shingo Yanari, Hideki Ishioka, Naoto Takahashi, Hirokatsu Katagiri, Shoji Kanno, Daiki Takeda, Toshifumi Morishita, Makoto Eizuka, Tomofumi Oizumi, Hiroyuki Nitta
Improvements of lung volumes and respiratory symptoms after weight loss through laparoscopic sleeve gastrectomy. Langenbeck's archives of surgery 407 (7) (2022)
Hideki Kumagai, Akira Umemura, Hiroyuki Nitta, Hirokatsu Katagiri, Shoji Kanno, Daiki Takeda, Satoshi Amano, Koji Kikuchi, Kiyoharu Takashimizu, Masao Nishiya, Noriyuki Uesugi, Tamotsu Sugai, Akira Sasaki
Pure Laparoscopic Left Hepatectomy for Regrowth of Mucinous Cystic Neoplasm of the Liver after Laparoscopic Deroofing. Case reports in surgery 2022 (2022)
Akira Sasaki, Akira Umemura, Kazuyuki Ishida, Naoto Takahashi, Haruka Nikai, Hiroyuki Nitta, Yasuhiro Takikawa, Keisuke Kakisaka, Tamami Abe, Masao Nishiya, Tamotsu Sugai
The Concept of Indeterminable NASH Inducted by Preoperative Diet and Metabolic Surgery: Analyses of Histopathological and Clinical Features. Biomedicines 10 (2) (2022)
Hiroyuki Nitta, Akira Sasaki, Hirokatsu Katagiri, Shoji Kanno, Akira Umemura
Is Laparoscopic Hepatectomy Safe for Giant Liver Tumors? Proposal from a Single Institution for Totally Laparoscopic Hemihepatectomy Using an Anterior Approach for Giant Liver Tumors Larger Than 10 cm in Diameter. Current oncology (Toronto, Ont.) 29 (11) (2022)
Naoto Takahashi, Hiroyuki Nitta, Akira Umemura, Hirokatsu Katagiri, Shoji Kanno, Daiki Takeda, Kenji Makabe, Satoshi Amano, Masao Nishiya, Noriyuki Uesugi, Tamotsu Sugai, Akira Sasaki
Pancreatic ductal adenocarcinoma in a patient with pancreas divisum and gastrointestinal duplication cyst: a case report. Surgical case reports 7 (1) (2021)
Keisuke Kakisaka, Akira Sasaki, Akira Umemura, Haruka Nikai, Yuji Suzuki, Masao Nishiya, Tamotsu Sugai, Hiroyuki Nitta, Yasuhiro Takikawa
High frequency and long persistency of ballooning hepatocyte were associated with glucose intolerance in patients with severe obesity. Scientific reports 11 (1) (2021)
Yasushi Hasegawa, Hiroyuki Nitta, Takeshi Takahara, Hirokatsu Katagiri, Shoji Kanno, Akira Umemura, Yuji Akiyama, Takeshi Iwaya, Koki Otsuka, Akira Sasaki
Glucocorticoid use and ischemia-reperfusion injury in laparoscopic liver resection: Randomized controlled trial. Annals of gastroenterological surgery 4 (1) (2019)
Akira Umemura, Takayuki Suto, Hisataka Fujuwara, Seika Nakamura, Hiroyuki Nitta, Takeshi Takahara, Yasushi Hasegawa, Akira Sasaki
Laparoscopic Repair for Recurrent Bilateral Inguinal Bladder Hernia following Bilateral Transabdominal Preperitoneal Repair. Case reports in surgery 2018 (2018)
Akira Umemura, Kazuyuki Ishida, Hiroyuki Nitta, Takeshi Takahara, Yasushi Hasegawa, Kenji Makabe, Tamotsu Sugai, Akira Sasaki
An extremely rare case who underwent total remnant pancreatectomy due to recurrent pancreatic metastasis of intraductal tubulopapillary neoplasm. Clinical journal of gastroenterology 12 (2) (2018)
Akira Umemura, Hiroyuki Nitta, Akira Sasaki, Takeshi Takahara, Yasushi Hasegawa, Go Wakabayashi
ABO-Incompatible Living Donor Liver Transplantation from Hepatitis B Core Antibody Positive Donor to Hepatitis C Liver Cirrhosis Recipient: A Case Report. Case reports in transplantation 2014 (2014)