Masahiro Itonaga
Wakayama Medical University
Internal medicineRadiologySurgeryRetrospective cohort studyRandomized controlled trialProspective cohort studyAdverse effectClinical endpointBiopsyPancreatitisFine-needle aspirationContrast (vision)Endoscopic retrograde cholangiopancreatographyStentPancreasPancreatic cancerEndoscopic ultrasoundNuclear medicineEndoscopic ultrasonographyIn patientMedicineGastroenterology
59Publications
11H-index
381Citations
Publications 64
Newest
#1Masahiro Itonaga (Wakayama Medical University)H-Index: 11
#2Keiichi Hatamaru (Wakayama Medical University)H-Index: 9
Last. Masayuki Kitano (Wakayama Medical University)H-Index: 43
view all 3 authors...
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#1Yasunobu YamashitaH-Index: 10
#2Takanori YoshikawaH-Index: 4
Last. Takao MaekitaH-Index: 2
view all 12 authors...
Detective flow imaging endoscopic ultrasonography (DFI-EUS) provides a new method to image and detect fine vessels and low-velocity blood flow without using ultrasound contrast agents. The aim of this study was to evaluate the utility of DFI-EUS for pancreatobiliary lesions and lymph nodes. Between January 2019 and January 2020, 53 patients who underwent DFI-EUS, e-FLOW EUS, and contrast-enhanced EUS were enrolled. The ability of DFI-EUS and e-FLOW EUS to detect vessels was compared with that of...
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#2Roberto Di MitriH-Index: 12
Last. Gloria Fernández-Esparrach (University of Barcelona)H-Index: 35
view all 48 authors...
ABSTRACT null null Background and aims null Benefit of rapid on-site evaluation (ROSE) on diagnostic accuracy of endoscopic ultrasound-guided fine-needle biopsy (EUS-FNB) has never been evaluated in a randomized study. This trial aimed to test the hypothesis that in solid pancreatic lesions (SPLs), diagnostic accuracy of EUS-FNB without ROSE was not inferior to that of EUS-FNB with ROSE. null null null Methods null Non-inferiority study (non-inferiority margin 5%) conducted at 14 centers in eigh...
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BACKGROUND AND AIMS This study aimed to compare contrast-enhanced harmonic endoscopic ultrasound (CH-EUS) with fundamental B-mode endoscopic ultrasonography (EUS) and contrast-enhanced computed tomography (CE-CT) for the diagnosis of left hepatic lobe metastases of pancreatic adenocarcinoma. METHODS In this single-center prospective study, CE-CT, EUS, and CH-EUS were performed to detect left hepatic lobe metastases in patients with pancreatic adenocarcinoma, and the detection rates were compared...
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#8Reiko Ashida (Wakayama Medical University)H-Index: 12
Endoscopic ultrasonography (EUS)-guided hepaticogastrostomy (HGS) is of clinical benefit in patients with failed endoscopic retrograde cholangiopancreatography (ERCP). However, some endoscopists are concerned about the potential risk of adverse events. Bile peritonitis due to bile leakage through the fistula is one of the possible adverse events following EUS-HGS. Recently, a novel laser-cut type partially covered self-expandable metal stent (PCSEMS), which is a dedicated stent for EUS-HGS, has ...
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#1Masaki Kuwatani (Hokkaido University)H-Index: 23
#2Kazumichi Kawakubo (Hokkaido University)H-Index: 29
Last. Shinichi Hashimoto (Kadai: Kagoshima University)H-Index: 13
view all 15 authors...
Introduction null Neoadjuvant chemotherapy or neoadjuvant chemoradiotherapy (NAC/NACRT) for resectable/borderline resectable pancreatic cancers was recently performed to improve clinical outcomes and led to good results, although it remains controversial whether NAC/NACRT is beneficial for resectable pancreatic cancer. A few recent studies revealed longer patency and lower cost related to the stent occlusion of a metal stent than those of a plastic stent during NAC/NACRT. It also remains controv...
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#1Yasunobu Yamashita (Wakayama Medical University)H-Index: 10
#2Masahiro Itonaga (Wakayama Medical University)H-Index: 11
Last. Masayuki Kitano (Wakayama Medical University)H-Index: 43
view all 10 authors...
Abstract null null Background and Aims null Endoscopic ultrasound-guided hepaticogastrostomy (EUS-HGS) is associated with high rates of adverse events. The present study evaluated the feasibility of a newly designed stent equipped with a dilatation and anti-migration system for EUS-HGS in phantom and animal models. null null null Methods null The newly designed stent was a partially covered laser-cut stent with antimigration anchoring hooks and a thin tapered tip (7.2F). The feasibility of these...
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#1Takeshi Ogura (Osaka Medical College)H-Index: 22
#2Takaaki EguchiH-Index: 10
Last. Kazuhide Higuchi (Osaka Medical College)H-Index: 47
view all 20 authors...
BACKGROUND AND AIM Recombinant thrombomodulin (rhTM) is potentially effective in the treatment of disseminated intravascular coagulation (DIC). Several studies related to drugs for the treatment of acute cholangitis have shown negative results in improvement of overall survival (OS) with rhTM. The aim of this multicenter study was to evaluate the clinical effectiveness of rhTM in patients with acute cholangitis and sepsis-induced DIC who underwent biliary drainage. METHODS Consecutive 284 patien...
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#4Reiko Ashida (Wakayama Medical University)H-Index: 12
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BACKGROUND The features of pancreatic parenchyma that tend to progress towards pancreatic cancer (PC) are unknown. We performed volumetry of the pancreas in PC patients using computed tomography (CT) scans acquired before detection of PC, and investigated whether CT findings of pancreatic parenchyma could predict the future occurrence of PC. METHODS Between April 2009 and March 2017, a total of 3769 patients underwent abdominal contrast-enhanced CT, the scans of which were archived as digital im...
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