Kazuichi Okazaki
Kansai Medical University
Internal medicineRadiologyBalloonSurgeryPathologyImmunologyColitisPancreatitisAutoimmune pancreatitisPancreasDiseasePancreatic cancerIgG4-related diseaseFibrosisIn patientHepatologyGeneral surgeryMedicineBiologyGastroenterology
700Publications
85H-index
20.4kCitations
Publications 699
Newest
#2Masaaki ShimataniH-Index: 17
Last. Kazuichi OkazakiH-Index: 85
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#1Hisanori UmeharaH-Index: 56
#2Kazuichi Okazaki (Kansai Medical University)H-Index: 85
Last. Yoshiya TanakaH-Index: 91
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AbstractIgG4-related disease (IgG4-RD) is a novel clinical disease entity characterized by elevated serum IgG4 concentration and tumefaction or tissue infiltration by IgG4-positive plasma cells. Al...
10 CitationsSource
#1Hiroaki YasudaH-Index: 10
#2Keisho Kataoka (Kyoto Prefectural University of Medicine)H-Index: 17
Last. Tooru ShimosegawaH-Index: 95
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BACKGROUND: Rapid urinary trypsinogen-2 dipstick test and levels of urinary trypsinogen-2 and trypsinogen activation peptide (TAP) concentration have been reported as prognostic markers for the diagnosis of acute pancreatitis. AIM: To reconfirm the validity of all these markers in the diagnosis of acute pancreatitis by undertaking a multi-center study in Japan. METHODS: Patients with acute abdominal pain were recruited from 17 medical institutions in Japan from April 2009 to December 2012. Urina...
1 CitationsSource
#1Terumi KamisawaH-Index: 77
#2Takahiro NakazawaH-Index: 29
Last. Masahiro Yoshida (International University of Health and Welfare)H-Index: 43
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: IgG4-related sclerosing cholangitis (IgG4-SC) is a distinct type of cholangitis frequently associated with autoimmune pancreatitis and currently recognized as a biliary manifestation of IgG4-related disease. Although clinical diagnostic criteria of IgG4-SC were established in 2012, differential diagnosis from primary sclerosing cholangitis and cholangiocarcinoma is sometimes difficult. Furthermore, no practical guidelines for IgG4-SC are available. Because the evidence level of most articles r...
43 CitationsSource
#1Kazuichi Okazaki (Kansai Medical University)H-Index: 85
#2Kazushige Uchida (Kansai Medical University)H-Index: 30
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#1Tetsuya Ito (Shinshu University)H-Index: 12
#2Shigeyuki Kawa (Matsumoto Dental University)H-Index: 67
Last. Tsutomu ChibaH-Index: 105
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ObjectiveAutoimmune pancreatitis (AIP) has the potential to transform into chronic pancreatitis with pancreatic stone involvement. This retrospective investigation sought to clarify the risk factors for stone formation in type 1 AIP.MethodsQuestionnaires on patients with type 1 AIP were sent to 22 h
7 CitationsSource
#1Yusuke Imai (Kansai Medical University)H-Index: 1
#2Masayuki Tanaka (Kansai Medical University)H-Index: 2
Last. Kazuichi Okazaki (Kansai Medical University)H-Index: 85
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: Nivolumab, an anti-programmed cell death 1 antibody, has been approved for the treatment of unresectable advanced non-small-cell lung cancer (NSCLC). Although immune-related adverse events (irAEs) such as dermatologic, digestive, endocrine, hepatic, and pulmonary toxicities are known to occur upon administration of immune checkpoint inhibitors, case reports of polymyalgia rheumatica (PMR) associated with nivolumab use are rare. We report a case of an NSCLC patient who developed PMR during trea...
5 CitationsSource
#1Kazushige Uchida (Kansai Medical University)H-Index: 30
#2Kazuichi Okazaki (Kansai Medical University)H-Index: 85
The Japanese clinical diagnostic criteria for IgG4-related sclerosing cholangitis (SC) established in 2012 are useful in the diagnosis of IgG4-related cholangiopathy [1]. IgG4-related SC, a distinctive type of cholangitis of unknown etiology, is characterized by increased serum levels of IgG4 and massive infiltration of IgG4-positive plasma cells with extensive fibrosis in the wall of the bile duct. Its cholangiographic features are similar to those of primary sclerosing cholangitis (PSC), pancr...
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#2Masaaki ShimataniH-Index: 17
Last. Kazuichi OkazakiH-Index: 85
view all 3 authors...
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#1Kazuichi Okazaki (Kansai Medical University)H-Index: 85
#2Kazushige Uchida (Kansai Medical University)H-Index: 30
: IgG4-related disease (IgG4-RD) is a fibroinflammatory disorder recognized as a novel clinical entity with either synchronous or metachronous multi-organ involvement. Patients with IgG4-RD show diffuse or focal organ enlargement and mass-forming or nodular/thickened lesions with abundant infiltration of IgG4-positive plasmacytes and fibrosis, and such patients respond well to steroid treatment. It should be differentiated from mimics by a combination of serum IgG4 level, imaging features, and h...
10 CitationsSource