Masanao Kurata
University of Tsukuba
Particle physicsPhysicsCancerInternal medicineRadiologySurgeryPathologyOncologyRetrospective cohort studyPancreatitisPancreaticobiliary maljunctionGallbladderCarcinomaHepatocellular carcinomaPancreasMetastasisBile ductPancreatic ductPancreatic cancerAdenocarcinomaPancreatic ductal adenocarcinomaHepatologyGeneral surgeryMedicineGastroenterology
98Publications
26H-index
1,740Citations
Publications 87
Newest
#1Masanao Kurata (University of Tsukuba)H-Index: 26
#2Yukio Iwashita (Oita University)H-Index: 23
Last. Masakazu YamamotoH-Index: 63
view all 35 authors...
BACKGROUND To explore best practices for acute cholecystitis, it is necessary to construct a system to assess the difficulty of laparoscopic cholecystectomy (LC) based on intraoperative findings. In this study, multiple evaluators assessed videos of LC to assemble a library of typical video clips for 25 intraoperative findings. METHODS We have previously identified 25 items that contribute to surgical difficulty in LC. For each item, roughly 30-s video clips were submitted from videos of LC perf...
1 CitationsSource
#1Takao Ohtsuka (Kyushu University)H-Index: 37
#2Yuichi Nagakawa (TMU: Tokyo Medical University)H-Index: 23
Last. Masafumi Nakamura (Kyushu University)H-Index: 63
view all 60 authors...
BACKGROUND: Prospective studies are needed to understand the safety and feasibility of laparoscopic pancreatectomy. The aim of the present study was to describe laparoscopic pancreatectomy currently undertaken in Japan, using a prospective registration system. METHODS: Patient characteristics and planned operations were registered preoperatively, and then the performed operation and outcomes were reported using an online system. Collected data were also compared between institutions based on the...
7 CitationsSource
#1Yuki Homma (YCU: Yokohama City University)H-Index: 9
#2Goro HondaH-Index: 28
Last. Jun Yamamoto (YCU: Yokohama City University)H-Index: 3
view all 6 authors...
Background In our process of standardizing laparoscopic right-sided anatomical hepatectomy, we found several advantages of the caudate lobe-first approach. We herein describe our standardized procedure of laparoscopic right posterior sectionectomy (Lap-RPS) using this approach.
5 CitationsSource
#1Chen Liang (University of Tsukuba)H-Index: 2
#2Kazuhiro Takahashi (University of Tsukuba)H-Index: 16
Last. Nobuhiro Ohkohchi (University of Tsukuba)H-Index: 48
view all 6 authors...
BACKGROUND: Polycystic liver disease (PCLD) with a large cystic volume deteriorates the quality of life of patients through substantial effects on the adjacent organs, recurrent cyst infections, cyst rupture, and hemorrhage. Surgical or radiological intervention is usually needed to alleviate these symptoms. We report a rare case of the cystic metastasis of renal cell carcinoma (RCC), which was misdiagnosed as PCLD, as a result of the clinical and radiological similarity between these disorders....
1 CitationsSource
#1Shuichi Aoki (Tohoku University)H-Index: 5
#2Fuyuhiko Motoi (Tohoku University)H-Index: 40
Last. Michiaki Unno (Tohoku University)H-Index: 67
view all 16 authors...
Background Carbohydrate antigen (CA) 19–9 levels after resection are considered to predict prognosis; however, the significance of decreased CA19–9 levels after neoadjuvant therapy has not been clarified. This study aimed to define the prognostic significance of decreased CA19–9 levels after neoadjuvant therapy in patients with pancreatic adenocarcinoma.
22 CitationsSource
#1Fuyuhiko Motoi (Tohoku University)H-Index: 40
#2Yoshiaki Murakami (Hiroshima University)H-Index: 42
Last. Michiaki Unno (Tohoku University)H-Index: 67
view all 16 authors...
Background Survival after surgery for pancreatic adenocarcinoma (PA) is poor and heterogeneous, even for curative (R0) resection. Serum carbohydrate antigen (CA) 19-9 levels are important prognostic markers for resected PA. However, sustained elevation of CA19-9 in association with the patterns of recurrence has been rarely investigated.
9 CitationsSource
#1Yoshihiro Miyazaki (University of Tsukuba)H-Index: 4
#2Masanao Kurata (University of Tsukuba)H-Index: 26
Last. Nobuhiro Ohkohchi (University of Tsukuba)H-Index: 48
view all 7 authors...
Background Indocyanine green (ICG) can selectively accumulate in primary hepatocellular carcinoma (HCC) and its extrahepatic metastases. ICG fluorescence imaging is an extremely sensitive intraoperative tool for detecting HCC foci and can be used to detect impalpable tumors in laparoscopic surgery. Here, we report a case of a 75-year-old man who underwent peritoneal metastasis resection of HCC using a laparoscopic near-infrared imaging system and ICG fluorescence-navigated surgery.
6 CitationsSource
#1Yusuke Ohara (University of Tsukuba)H-Index: 8
#2Tatsuya Oda (University of Tsukuba)H-Index: 38
Last. Nobuhiro Ohkohchi (University of Tsukuba)H-Index: 48
view all 12 authors...
Background Pancreatic acinar cell carcinoma (PACC), a rare variant of pancreatic malignancy, is generally managed the same way as pancreatic ductal adenocarcinoma (PDAC). Surgical resection is the gateway to curing it; however, once it metastasizes (usually to the liver, lungs, lymph nodes, or peritoneal cavity), systemic chemotherapy has been the only option, but with unfavorable results.
4 CitationsSource
#1Koki MaedaH-Index: 1
#2Goro HondaH-Index: 28
Last. Yusuke OmeH-Index: 8
view all 7 authors...
BACKGROUND: In our process of standardizing laparoscopic right hemihepatectomy (Lap-RH), we found several advantages of the laparoscopic caudate lobe first approach by using a unique laparoscopic caudodorsal view. METHODS: Between April 2012 and October 2017, 21 patients underwent pure Lap-RH at our hospital. The mean patient age was 62 years (range 36-75 years), and there were more male than female patients (66.7%). Of 21 patients, 11 had hepatocellular carcinoma, eight had metastatic tumor, an...
5 CitationsSource
Background Anatomical hepatectomy is an ideal curative treatment for hepatocellular carcinoma (HCC). We have standardized our laparoscopic anatomical hepatectomy (LAH) procedure, gradually extending its indications. In the present study, we describe our experience and the perioperative and oncological outcomes of LAH for HCC compared to those of open anatomical hepatectomy (OAH) during the gradual introduction of LAH.
7 CitationsSource