Tomohiko Sakai

ORCID: 0009-0005-2159-1852
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About
Contact & Profiles
Research Areas
  • Cardiac Arrest and Resuscitation
  • Traumatic Brain Injury and Neurovascular Disturbances
  • Trauma and Emergency Care Studies
  • Emergency and Acute Care Studies
  • Planetary Science and Exploration
  • Non-Invasive Vital Sign Monitoring
  • Optical Imaging and Spectroscopy Techniques
  • Spacecraft Dynamics and Control
  • Hemodynamic Monitoring and Therapy
  • Trauma Management and Diagnosis
  • Spacecraft Design and Technology
  • Injury Epidemiology and Prevention
  • Traumatic Brain Injury Research
  • Thermal Regulation in Medicine
  • Cardiovascular Effects of Exercise
  • Disaster Response and Management
  • Mechanical Circulatory Support Devices
  • Airway Management and Intubation Techniques
  • Anesthesia and Neurotoxicity Research
  • Clinical Nutrition and Gastroenterology
  • Simulation-Based Education in Healthcare
  • Spacecraft and Cryogenic Technologies
  • Healthcare Technology and Patient Monitoring
  • Sepsis Diagnosis and Treatment
  • Wound Healing and Treatments

Osaka University
2012-2023

Chukyo Hospital
2011-2023

Osaka University Hospital
2021

Osaka Gakuin University
2018-2019

Japan Aerospace Exploration Agency
2008-2018

Institute of Space and Astronautical Science
2008-2018

Social Insurance Institute
2012

Nokia (Finland)
2006

Nagasaki University Hospital
1999

Southwestern Medical Center
1991

Early defibrillation plays a key role in improving survival patients with out-of-hospital cardiac arrests due to ventricular fibrillation (ventricular-fibrillation arrests), and the use of publicly accessible automated external defibrillators (AEDs) can help reduce time for such patients. However, effect dissemination public-access AEDs ventricular-fibrillation arrest at population level has not been extensively investigated.From nationwide, prospective, population-based registry Japan, we...

10.1056/nejmsa1600011 article EN New England Journal of Medicine 2016-10-26

Objectives To evaluate epidemiological characteristics of out-of-hospital cardiac arrests (OHCAs) by detailed non-cardiac cause and factors associated with the outcomes after OHCAs origin. Design A prospective, population-based observational study. Setting The Utstein Osaka Project. Participants 14 164 adult patients aged ≥20 years old due to origin who were resuscitated emergency-medical-service personnel or bystanders, then transported medical institutions from January 2005 December 2011....

10.1136/bmjopen-2014-006462 article EN cc-by-nc BMJ Open 2014-12-01

Background: The effectiveness of epinephrine administration for cardiac arrests has been shown in animal models, but the clinical effect is still controversial. Methods and Results: A prospective, population-based, observational study Osaka involved consecutive out-of-hospital arrest (OHCA) patients from January 2007 through December 2009. We evaluated outcomes among adult non-traumatic bystander-witnessed OHCA whom local protocol directed emergency medical service personnel to administer...

10.1253/circj.cj-11-1433 article EN Circulation Journal 2012-01-01

Abstract Introduction Both supraglottic airway devices (SGA) and endotracheal intubation (ETI) have been used by emergency life-saving technicians (ELST) in Japan to treat out-of-hospital cardiac arrests (OHCAs). Despite traditional emphasis on management during arrest, its impact survival from OHCA time dependent effectiveness remains unclear. Methods All adults with witnessed, non-traumatic OHCA, 1 January 2005 31 December 2008, treated the medical services (EMS) an advanced Osaka, were...

10.1186/cc10483 article EN cc-by Critical Care 2011-10-10

The aim of this study was to determine relative risk (RR) incidence and fatality out-of-hospital cardiac arrest (OHCA) by gender oestrogen status. In a prospective, population-based observational from 1998 through 2007, neurologically intact 1-month survival after OHCA were compared grouping: 0–12 years, 13–49 ≥50 years according menarche menopause age. Among 26 940 arrests, there 11 179 females 15 701 males. Age-adjusted RR for with males 0.72 [95% confidence interval (CI), 0.58–0.91] in...

10.1093/eurheartj/ehq059 article EN European Heart Journal 2010-03-15

Background: Detailed characteristics of those who experience an out-of-hospital cardiac arrest (OHCA) with public-access defibrillation (PAD) are unknown. Methods and Results: A prospective, population-based observational study involving consecutive OHCA patients emergency responder resuscitation attempts was conducted from July 1, 2004 through December 31, 2008 in Osaka City. We extracted data for shocked by a automated external defibrillator (AED) evaluated the patients' rescuers'...

10.1253/circj.cj-11-0316 article EN Circulation Journal 2011-01-01

Background:This simulation trial aimed to compare the quality of cardiopulmonary resuscitation (CPR) with and without newly-developed CPR support application on smartphones.Methods Results:In this trial, participants were randomly assigned either group or control group, stratified by sex previous training. Participants' skills evaluated a 2-min case-based scenario test using Leardal Resusci Anne PC Skillreporting Manikin System®. The outcome measures proportion chest compressions performed...

10.1253/circj.cj-14-1258 article EN Circulation Journal 2015-01-01

The objective of this study was to compare the temporal trends in survival after out-of-hospital cardiac arrest (OHCA) between two large metropolitan communities Asia and evaluate factors affecting OHCA.A population-based prospective observational study.The Cardiovascular Disease Surveillance (CAVAS) project Seoul Utstein Osaka Project Osaka.A total 36,292 resuscitation-attempted OHCAs with aetiology from 2006 2011 (11,082 25,210 Osaka).The primary outcome neurologically favourable survival....

10.1136/bmjopen-2015-007626 article EN cc-by-nc BMJ Open 2015-06-01

Japanese rice cake ("mochi") is a major cause of food-choking accidents in Japan. However, the epidemiology out-of-hospital cardiac arrests (OHCAs) due to suffocation caused by cakes poorly understood.OHCA data from 2005 2012 were obtained population-based OHCA registry Osaka Prefecture. Patients aged ≥20 years who experienced that occurred before arrival emergency-medical-service (EMS) personnel included. Patient characteristics, prehospital interventions, and outcomes compared based on...

10.2188/jea.je20160179 article EN cc-by Journal of Epidemiology 2017-10-27

Although foreign body airway obstruction (FBAO) accounts for many preventable unintentional accidents, little is known about the epidemiology of FBAO patients and effect forceps use on those patients. This study aimed to assess characteristics transported hospitals by emergency medical service (EMS) personnel, verify relationship between prehospital Magill outcomes among out-of-hospital cardiac arrests (OHCA) with FBAO. We retrospectively reviewed ambulance records all who suffered FBAO,...

10.1186/s13049-014-0053-3 article EN cc-by Scandinavian Journal of Trauma Resuscitation and Emergency Medicine 2014-09-03

Background Little is known about whether cardiopulmonary resuscitation ( CPR ) training can increase bystander in the community or appropriate target number of trainings. Herein, we aimed to demonstrate community-wide aggressive dissemination and evaluate temporal trends . Methods Results We provided (45-minute chest compression-only plus automated external defibrillator use conventional training), targeting 16% residents. All emergency medical service-treated out-of-hospital cardiac arrests...

10.1161/jaha.118.009436 article EN cc-by-nc-nd Journal of the American Heart Association 2019-01-07

The exploration of energization and radiation in geospace (ERG) satellite, nicknamed "Arase," is the second satellite a series small scientific satellites created by Institute Space Astronautical Science Japan Aerospace Exploration Agency. It was launched on December 20, 2016, Epsilon launch vehicle. purpose ERG project to investigate how high-energy (over MeV) electrons belts surrounding Earth are generated lost monitoring interactions between plasma waves electrically charged particles. To...

10.1186/s40623-018-0863-z article EN cc-by Earth Planets and Space 2018-06-25

Stroke is difficult to diagnose when consciousness disturbed. However few reports have discussed the clinical predictors of stroke in out-of-hospital emergency settings. This study aims evaluate association between initial systolic blood pressure (SBP) value measured by medical service (EMS) and diagnosis among impaired patients. We included all patients aged 18 years or older who were treated transported EMS, had (Japan Coma Scale ≧ 1) Osaka City (2.7 million), Japan from January 1, 1998...

10.1186/1471-227x-13-24 article EN cc-by BMC Emergency Medicine 2013-12-01

Toxic shock syndrome (TSS) caused by methicillin-resistant Staphylococcus aureus (MRSA) nosocomial infection is a growing concern in both adult and pediatric patients. The reason why TSS appears only some patients with MRSA remains unclear. In this study, we analyzed serial toxin-1 (TSST-1) antibody burn injury to investigate the mechanisms of infection. This study comprised our care unit from September, 2010 August, 2011. Serum samples were collected serially on admission, at 48 72 hours...

10.1097/bcr.0000000000000128 article EN Journal of Burn Care & Research 2014-08-05

The 2010 Consensus on Science and Treatment Recommendations Statement recommended that short video/computer self-instruction courses, with minimal or no instructor coaching, combined hands-on practice can be considered an effective alternative to instructor-led basic life support courses. purpose of this study was examine the effectiveness a simplified cardiopulmonary resuscitation (CPR) training program for non-medical staff working at university hospital. Before immediately after 45-min...

10.1186/1757-7241-22-31 article EN cc-by Scandinavian Journal of Trauma Resuscitation and Emergency Medicine 2014-05-10

This prospective observational single-center cohort study aimed to determine an association between cerebrovascular autoregulation (CVAR) and outcomes in hypoxic-ischemic brain injury post-cardiac arrest (CA), assessed 100 consecutive post-CA patients Japan June 2017 May 2020 who experienced a return of spontaneous circulation. Continuous monitoring was performed for 96 h CVAR presence. A moving Pearson correlation coefficient calculated from the mean arterial pressure cerebral regional...

10.1177/0271678x231185658 article EN cc-by-nc Journal of Cerebral Blood Flow & Metabolism 2023-06-28
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