Seiki Kiriyama
Nagoya University
Internal medicineRadiologySurgeryPathologyVirologyIntensive care medicineImmunologyPancreatitisInterferonSurvival rateHepatitis C virusHepatitis CAcute pancreatitisHepatocellular carcinomaAbdominal surgeryCholecystitisAlpha interferonHepatologyIncidence (epidemiology)MedicineGastroenterology
150Publications
44H-index
5,094Citations
Publications 150
Newest
#1Hidenori ToyodaH-Index: 2
#2Satoshi YasudaH-Index: 6
Last. Yoshio SumidaH-Index: 18
view all 14 authors...
Abstract Background The current coronavirus disease 2019 (COVID-19) pandemic has strongly influenced many aspects of the medical care, including cancer surveillance Aims We investigated how the COVID-19 pandemic influenced surveillance for hepatocellular carcinoma (HCC), focusing on patients with hepatitis C virus infection who were receiving surveillance for HCC after sustained virologic response (SVR) in Japan Methods Patients who achieved SVR between 1995 and 2017 and continued receiving surv...
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#1Hidenori ToyodaH-Index: 2
#2Satoshi YasudaH-Index: 6
Last. Yoshio SumidaH-Index: 18
view all 14 authors...
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#1Hiroaki YasudaH-Index: 10
#2Keisho Kataoka (Kyoto Prefectural University of Medicine)H-Index: 17
Last. Tooru ShimosegawaH-Index: 95
view all 28 authors...
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
#1Fumihiko Miura (Teikyo University)H-Index: 38
#2Kohji OkamotoH-Index: 41
Last. Masakazu YamamotoH-Index: 63
view all 58 authors...
The initial management of patients with suspected acute biliary infection starts with the measurement of vital signs to assess whether or not the situation is urgent. If the case is judged to be urgent, initial medical treatment should be started immediately including respiratory/circulatory management if required, without waiting for a definitive diagnosis. The patient's medical history is then taken; an abdominal examination is performed; blood tests, urinalysis, and diagnostic imaging are car...
89 CitationsSource
Management bundles that define items or procedures strongly recommended in clinical practice have been used in many guidelines in recent years. Application of these bundles facilitates the adaptation of guidelines and helps improve the prognosis of target diseases. In Tokyo Guidelines 2013 (TG13), we proposed management bundles for acute cholangitis and cholecystitis. Here, in Tokyo Guidelines 2018 (TG18), we redefine the management bundles for acute cholangitis and cholecystitis. Critical parts...
52 CitationsSource
#1Masamichi YokoeH-Index: 27
#2Jiro Hata (Kawasaki Medical School)H-Index: 31
Last. Masakazu YamamotoH-Index: 63
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Although the diagnostic and severity grading criteria on the 2013 Tokyo Guidelines (TG13) are used worldwide as the primary standard for management of acute cholangitis (AC), they need to be validated through implementation and assessment in actual clinical practice. Here, we conduct a systematic review of the literature to validate the TG13 diagnostic and severity grading criteria for AC and propose TG18 criteria. While there is little evidence evaluating the TG13 criteria, they were validated ...
252 CitationsSource
#1Harumi Gomi (University of Tsukuba)H-Index: 13
#2Joseph S. Solomkin (University of Cincinnati Academic Health Center)H-Index: 69
Last. Masakazu YamamotoH-Index: 63
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Antimicrobial therapy is a mainstay of the management for patients with acute cholangitis and/or cholecystitis. Tokyo Guidelines 2018 (TG 18) provides recommendations for the appropriate for use of antimicrobials for community-acquired and healthcare-associated infections. The listed agents are for empirical therapy) provided before the infecting isolates are identified. Antimicrobial agents are listed by class-definitions and TG 18 Severity Grade I, II, and III subcategorized by clinical settin...
80 CitationsSource
We propose a new flowchart for the treatment of acute cholecystitis (AC) in the Tokyo Guidelines 2018 (TG18). Grade III AC was not indicated for straightforward laparoscopic cholecystectomy (Lap-C). Following analysis of subsequent clinical investigations and drawing on Big Data in particular, TG18 proposes that some Grade III AC can be treated by Lap-C when performed at advanced centers with specialized surgeons experienced in this procedure and for patients that satisfy certain strict criteria...
164 CitationsSource
#1Shuntaro Mukai (TMU: Tokyo Medical University)H-Index: 23
#2Takao Itoi (TMU: Tokyo Medical University)H-Index: 76
Last. Masakazu YamamotoH-Index: 63
view all 24 authors...
: The Tokyo Guidelines 2013 (TG13) include new topics in the biliary drainage section. From these topics, we describe the indications and new techniques of biliary drainage for acute cholangitis with videos. Recently, many novel studies and case series have been published across the world, thus TG13 need to be updated regarding the indications and selection of biliary drainage based on published data. Herein, we describe the latest updated TG13 on biliary drainage in acute cholangitis with meta-...
38 CitationsSource
#1Toshifumi TadaH-Index: 32
#2Takashi KumadaH-Index: 60
Last. Junko Tanaka (Hiroshima University)H-Index: 28
view all 10 authors...
Aim The rate of hepatocellular carcinoma (HCC) development is reportedly lower in patients with chronic hepatitis C virus (HCV) who have achieved a sustained virological response (SVR) than in patients who were unresponsive to therapy. However, the development of HCC is sometimes observed in patients with SVR. Therefore, we clarified the predictive power of clinical factors for HCC incidence in patients with SVR using receiver operating characteristic (ROC) curve analysis that takes time depende...
14 CitationsSource