Hiroaki Miyata

ORCID: 0000-0001-8800-6201
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About
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Research Areas
  • Cardiac, Anesthesia and Surgical Outcomes
  • Gastric Cancer Management and Outcomes
  • Cardiac Valve Diseases and Treatments
  • Esophageal and GI Pathology
  • Esophageal Cancer Research and Treatment
  • Aortic Disease and Treatment Approaches
  • Colorectal Cancer Surgical Treatments
  • Cardiac and Coronary Surgery Techniques
  • Acute Myocardial Infarction Research
  • Pancreatic and Hepatic Oncology Research
  • Colorectal Cancer Screening and Detection
  • Coronary Interventions and Diagnostics
  • Cardiac Structural Anomalies and Repair
  • Aortic aneurysm repair treatments
  • Health Systems, Economic Evaluations, Quality of Life
  • Infective Endocarditis Diagnosis and Management
  • Clinical practice guidelines implementation
  • Breast Cancer Treatment Studies
  • Particle Detector Development and Performance
  • COVID-19 epidemiological studies
  • Congenital Heart Disease Studies
  • Cardiac Imaging and Diagnostics
  • Lung Cancer Diagnosis and Treatment
  • Hepatocellular Carcinoma Treatment and Prognosis
  • Vascular Procedures and Complications

Keio University
2016-2025

International University of Health and Welfare
2025

The University of Tokyo
2015-2024

Foundation for Advanced Studies on International Development
2021-2024

Guy's and St Thomas' NHS Foundation Trust
2023

St. Franziskus Hospital
2023

North Bristol NHS Trust
2023

University of Colombo
2023

Universidade Nova de Lisboa
2023

Ludwig-Maximilians-Universität München
2023

In Brief Objective: This study aimed to create a risk model of mortality associated with esophagectomy using Japanese nationwide database. Methods: A total 5354 patients who underwent in 713 hospitals 2011 were evaluated. Variables and definitions virtually identical those adopted by the American College Surgeons National Surgical Quality Improvement Program. Results: The mean patient age was 65.9 years, 84.3% male. overall morbidity rate 41.9%. Thirty-day operative rates after 1.2% 3.4%,...

10.1097/sla.0000000000000644 article EN Annals of Surgery 2014-04-17

The Belle detector at the KEKB electron-positron collider has collected almost 1 billion Y(4S) events in its decade of operation. Super-KEKB, an upgrade is under construction, to increase luminosity by two orders magnitude during a three-year shutdown, with ultimate goal 8E35 /cm^2 /s luminosity. To exploit increased luminosity, been proposed. A new international collaboration Belle-II, being formed. Technical Design Report presents physics motivation, basic methods accelerator upgrade, as...

10.48550/arxiv.1011.0352 preprint EN other-oa arXiv (Cornell University) 2010-01-01

To create a mortality risk model after pancreaticoduodenectomy (PD) using Web-based national database system.PD is major gastroenterological surgery with relatively high mortality. Many studies have reported factors to analyze short-term outcomes.After initiation of National Clinical Database, approximately 1.2 million surgical cases from more than 3500 Japanese hospitals were collected through data entry system. After cleanup, 8575 PD patients (mean age, 68.2 years) recorded in 2011 1167...

10.1097/sla.0000000000000263 article EN Annals of Surgery 2013-11-19

The aim of this study was to compare the long-term outcomes and perioperative laparoscopic liver resection (LLR) with those open (OLR) for hepatocellular carcinoma (HCC) between well-matched patient groups.Hepatocellular patients underwent primary 2000 2010, were collected from 31 participating institutions in Japan divided into LLR (n = 436) OLR 2969) groups. A one-to-one propensity case-matched analysis used covariates baseline characteristics, including tumor characteristics surgical...

10.1002/jhbp.276 article EN Journal of Hepato-Biliary-Pancreatic Sciences 2015-06-22

<h2>Summary</h2><h3>Background</h3> Japan has entered the era of super-ageing and advanced health transition, which is increasingly putting pressure on sustainability its system. The level pace this transition might vary across regions within concern growing about increasing regional variations in disease burden. Global Burden Diseases, Injuries, Risk Factors Study 2015 (GBD 2015) provides a comprehensive, comparable framework. We used data from GBD with aim to quantify burden injuries,...

10.1016/s0140-6736(17)31544-1 article EN cc-by The Lancet 2017-07-20

The Japanese National Clinical Database (NCD) is a large-scale, nationwide, web-based data entry system that linked to the surgical board certification and covers almost all cases carried out in Japan.To evaluate outcomes according gastroenterological section of NCD.The 115 procedures stipulated by "Training Curriculum for Board-Certified Surgeons Gastroenterology" were registered from 2011 2017. number surgeries, preoperative comorbidities, short-term compared between registration...

10.1002/ags3.12258 article EN cc-by Annals of Gastroenterological Surgery 2019-05-20

Identifying and understanding reasons for being unsure or unwilling regarding intention to be vaccinated against coronavirus disease (COVID-19) may help inform future public health messages aimed at increasing vaccination coverage. We analyzed a broad array of individual's psychological dispositions with regard decision-making about COVID-19 in Japan.A nationally representative cross-sectional web survey was conducted 30053 Japanese adults aged 20 years older the end February 2021. In...

10.1016/j.lanwpc.2021.100223 article EN cc-by-nc-nd The Lancet Regional Health - Western Pacific 2021-07-31

Abstract Background We aimed to present the 2019 annual report of gastroenterological section National Clinical Database (NCD). Methods reviewed 609,589 cases recorded in and 5,029,764 registered from 2011 for 115 selected surgical procedures. Results The main features surgery Japan were similar those described 2018 report, namely, that 1) operative numbers gradually increased all procedures, except gastrectomy hepatectomy, which decreased these years; 2) eight major surgeries, age...

10.1002/ags3.12462 article EN cc-by Annals of Gastroenterological Surgery 2021-04-09

The National Clinical Database (NCD) of Japan is a nationwide data entry system for surgery, and it marked its 10th anniversary in 2020. aim was to present the 2020 annual report gastroenterological surgery NCD.

10.1002/ags3.12662 article EN cc-by Annals of Gastroenterological Surgery 2023-02-09

In Brief Objective: To construct a risk model for total gastrectomy outcomes using nationwide Internet-based database. Background: Total is very common procedure in Japan. This among the most invasive gastrointestinal procedures and known to carry substantial surgical risks. Methods: The National Clinical Database was used retrieve records on more than 1,200,000 cases from 3500 hospitals 2011. After data cleanup, 20,011 1623 were analyzed performed between January 1, 2011, December 31,...

10.1097/sla.0000000000000781 article EN Annals of Surgery 2014-07-29

To establish a risk model for distal gastrectomy in Japanese patients with gastric cancer.Risk stratification cancer improves surgical outcomes.The National Clinical Database was constructed determination cancer-related among individuals. Data from 33,917 cases (1737 hospitals) were used. The primary outcomes 30-day and operative mortalities. randomly assigned to development (27,220 cases) test validation (6697 subsets. Stepwise selection used constructing mortality logistic models.The...

10.1097/sla.0000000000001127 article EN Annals of Surgery 2015-02-26

The aim of the present study was to clarify surgical outcome and long-term prognosis laparoscopic liver resection (LLR) compared with conventional open (OLR) in patients colorectal metastases (CRLM).A one-to-two propensity score matching (PSM) analysis applied. Covariates (P < 0.2) used for PSM estimation included preoperative levels CEA CA19-9; primary tumor differentiation; pathological lymph node metastasis; number, size, location, distribution CRLM; existence extrahepatic extent hepatic...

10.1002/jhbp.261 article EN Journal of Hepato-Biliary-Pancreatic Sciences 2015-04-22

Background The morbidity rate after pancreaticoduodenectomy remains high. objectives of this retrospective cohort study were to clarify the risk factors associated with serious (Clavien–Dindo classification grades IV–V), and create complication calculators using Japanese National Clinical Database. Methods Between 2011 2012, data from 17,564 patients who underwent at 1,311 institutions in Japan recorded database. analyzed. Results overall rates 41.6% 4.5%, respectively. A pancreatic fistula...

10.1002/jhbp.438 article EN cc-by-nc-nd Journal of Hepato-Biliary-Pancreatic Sciences 2017-02-14

In the 20th Nationwide Follow-up Survey of Primary Liver Cancer in Japan, data from 21 075 new patients and 40 769 previously followed were compiled 544 institutions over a 2-year period 1 January 2008 to 31 December 2009. Compared with previous 19th survey, population hepatocellular carcinoma (HCC) was older at time clinical diagnosis, included more female patients, non-B non-C HCC, had smaller tumor diameters frequently received radiofrequency ablation as local therapy. Cumulative survival...

10.1111/hepr.13438 article EN cc-by-nc-nd Hepatology Research 2019-10-26

Objective: We aimed to elucidate whether minimally invasive esophagectomy (MIE) can be safely performed by reviewing the Japanese National Clinical Database. Summary of Background Data: MIE is being increasingly adopted, even for advanced esophageal cancer that requires various preoperative treatments. However, superiority MIE's short-term outcomes compared with those open (OE) has not been definitively established in general clinical practice. Methods: This study included 24,233...

10.1097/sla.0000000000003222 article EN Annals of Surgery 2019-02-01

Deep sternal wound infection (DSWI) is a serious postoperative complication of cardiac surgery. In this study we investigated the incidence DSWI and effect re-exploration for bleeding on mortality. We reviewed 73,700 cases registered in Japan Adult Cardiovascular Surgery Database (JACVSD) during period from 2004 to 2009 divided them into five groups: 26,597 isolated coronary artery bypass graft (CABG) cases, 23,136 valvular surgery 17,441 thoracic aortic 4,726 plus CABG 1,800 cases....

10.1186/1749-8090-8-132 article EN cc-by Journal of Cardiothoracic Surgery 2013-05-20

Abstract Background Laparoscopic distal pancreatectomy has been shown to be associated with favorable postoperative outcomes using meta‐analysis. However, there have no randomized controlled studies yet. This study aimed compare laparoscopic and open propensity score‐matching. Methods We retrospectively collected perioperative data of 2,266 patients who underwent in 69 institutes from 2006–2013 Japan. Among them, 2,010 were enrolled this divided into two groups, pancreatectomy. Perioperative...

10.1002/jhbp.268 article EN Journal of Hepato-Biliary-Pancreatic Sciences 2015-06-18
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