The factors associated with the provision of public access defibrillation in Japan - A nationwide cohort study.

Aim: The association between out-of-hospital cardiac arrest (OHCA) and the appropriate provision of public access defibrillation (PAD) remains unclear. This study aimed to evaluate the factors associated with whether or not PAD was provided.

Methods: This retrospective cohort study utilized the All-Japan Utstein and Emergency Transport Registries in 2021.

Effect of timing of advanced life support on out-of-hospital cardiac arrests at home.

Aim: In cases of out-of-hospital cardiac arrests (OHCA) occurring at home, Japanese emergency medical services personnel decide whether to provide treatment on the scene or during transport based on their judgment. This study aimed to evaluate the association between the timing of advanced life support (ALS) (i.e.

Characteristics of Fatal Accidents due to Exogenous Causes at Ski Resorts in Japan Over the Past 13 Years: A Retrospective Descriptive Study.

Introduction: The characteristics of ski- and snowboard-related fatalities at Japanese ski resorts remain unknown. We aimed to analyze the characteristics of this in the current study.

Methods: Using the Ski Resort Injury Report data for the 13-y period between the 2011-12 and 2022-23 seasons, we described the characteristics of fatal accidents due to exogenous causes.

Sport level and sex differences in sport-related concussion among Japanese collegiate athletes: Epidemiology, knowledge, reporting behaviors, and reported symptoms.

This study investigated the incidence of sport-related concussion (SRC) in sports, effect of athlete knowledge on reporting behavior differences between collegiate and non-collegiate athletes, and differences in SRC symptoms between sexes and level of participation. In this cross-sectional survey, 1 344 Japanese collegiate and non-collegiate athletes from a single institute were analyzed. Using a web-based survey, demographics, general SRC, knowledge of SRC, the most recent SRC reporting behaviors, and symptom presentation were examined.

Association between bystander intervention and emergency medical services and the return of spontaneous circulation in out-of-hospital cardiac arrests occurring at a train station in the Tokyo metropolitan area: A retrospective cohort study.

Aim: The purpose of this study was to stratify patients who achieved return of spontaneous circulation (ROSC) after out-of-hospital cardiac arrest (OHCA) with bystander procedures pre-emergency medical service (EMS) arrival and those who achieved ROSC with procedures post-EMS arrival, compare outcomes at 1-month, and identify factors associated with pre-EMS-arrival-ROSC.

Methods: A retrospective cohort analysis of OHCAs occurring at stations in the Tokyo metropolitan area between 2014 and 2018 was conducted. Subjects were stratified by ROSC phase (categorized as pre- and post-EMS arrival and non-ROSC).

Incidence and factor analysis for the heat-related illness on the Tokyo 2020 Olympic and Paralympic Games.

Introduction: Among the 43 venues of Tokyo 2020 Olympic Games (OG) and 33 venues of Paralympic Games (PG) were held, the heat island effect was highly expected to cause heat-related illnesses in the outdoor venues with maximum temperatures exceeding 35°C. However, the actual number of heat-related illness cases during the competition was lower than that was initially expected, and it was unclear under what conditions or environment-related heat illnesses occurred among athletes.

Object: To clarify the cause and factors contributing to the occurrence of heat-related illness among athletes participating in the Tokyo 2020 Olympic and Paralympic Games.

The association of delayed advanced airway management and neurological outcome after out-of-hospital cardiac arrest in Japan.

Introduction: The effectiveness of advanced airway management (AAM) for out-of-hospital cardiac arrest (OHCA) has been reported differently in each region; however, no study has accounted for the regional differences in the association between the timing of AAM implementation and neurological outcomes.

Objective: This study aimed to evaluate the association between the timing of patient or prefecture level AAM and a favorableneurological outcome defined by cerebral performance category 1 or 2 (CPC 1-2).

Methods: A retrospective cohort study was conducted using data from the All-Japan Utstein Registry between 2013 and 2017.

Prehospital interventions and neurological outcomes in marathon-related sudden cardiac arrest using a rapid mobile automated external defibrillator system in Japan: a prospective observational study.

Objective: To describe neurological outcomes after sudden cardiac arrests (SCAs) in road and long-distance races using a rapid mobile automated external defibrillator system (RMAEDS) intervention.

Methods: A total of 42 SCAs from 3 214 701 runners in 334 road and long-distance races from 1 February 2007 to 29 February 2020 were examined. Demographics, SCA interventions, EMS-related data and SCA-related outcomes were measured.

Increasing the shockable rhythm and survival rate by dispatcher-assisted cardiopulmonary resuscitation in Japan.

Purpose: This study aimed to examine the effectiveness of cardiopulmonary resuscitation (CPR) directions by dispatchers. We analysed the relationship of dispatcher-assisted bystander cardiopulmonary resuscitation (DA-BCPR) with favourable cerebral function, shockable rhythm rate, and emergency medical service (EMS) arrival time.

Methods: This nationwide study was based on CPR statistical data of out-of-hospital cardiac arrest (OHCA) patients (n = 629,471) from 1 January 2011 to 31 December 2015, and included 107,669 patients with bystander-witnessed cardiogenic cardiac arrest.

Early endotracheal intubation improves neurological outcome following witnessed out-of-hospital cardiac arrest in Japan: a population-based observational study.

Aim: It is unclear whether endotracheal intubation in the prehospital setting improves outcomes following out-of-hospital cardiac arrest. The purpose of this study was to evaluate the association between endotracheal intubation time (time from patient contact to endotracheal intubation) and favorable neurological outcomes on out-of-hospital cardiac arrest.

Methods: We extracted patients who underwent endotracheal intubation on the scene from a nationwide out-of-hospital cardiac arrest database registered between 2014 and 2017 in Japan.

A pilot study of Practice While Watch based 50 min school quality cardiopulmonary resuscitation classroom training: a cluster randomized control trial.

Aim: Cardiopulmonary resuscitation (CPR) training in schools can increase the rate of bystander CPR. We assessed whether a "Quality CPR (QCPR) Classroom" can support CPR performance by students trained by a teacher who is not a CPR instructor.

Methods: A cluster randomized trial was undertaken to assess the effectiveness of a 50-min Practice While Watch CPR training program enhanced by QCPR Classroom, which used 42 manikins connected by Bluetooth to real-time feedback monitoring.

Effect of real-time visual feedback device 'Quality Cardiopulmonary Resuscitation (QCPR) Classroom' with a metronome sound on layperson CPR training in Japan: a cluster randomized control trial.

Objectives: 'Quality Cardiopulmonary Resuscitation (QCPR) Classroom' was recently introduced to provide higher-quality Cardiopulmonary Resuscitation (CPR) training. This study aimed to examine whether novel QCPR Classroom training can lead to higher chest-compression quality than standard CPR training.

Design: A cluster randomised controlled trial was conducted to compare standard CPR training (control) and QCPR Classroom (intervention).

The influence of excluding patients with bystander return of spontaneous circulation in the current OHCA database.

Background: The effect of bystander interventions has been extensively evaluated by cerebral function after 1 month post-resuscitation. However, patients who received bystander cardiopulmonary resuscitation (BCPR) and achieved the return of spontaneous circulation (ROSC) before the arrival of the emergency medical system (EMS) are routinely defined with an unknown electrocardiogram (ECG) and are usually excluded before analysis. The aim is to determine the influence of excluding patients with unknown first monitored rhythm, which includes cases of bystander ROSC, from the out-of-hospital cardiac arrest (OHCA) database.

Does dispatcher-assisted CPR generate the same outcomes as spontaneously delivered bystander CPR in Japan?

Aim: We investigated whether DA-CPR would have the same effect as spontaneously-delivered bystander CPR.

Methods: A total of 37,899 witnessed cardiogenic out of hospital cardiac arrest (OHCA) selected from a nationwide Utstein-Japanese database between 2008 and 2012. Patients were divided into four groups as follows: CPR initiated with dispatcher assistance (DA-CPR; n=10,424), no CPR provided with dispatcher assistance (DA-No CPR; n=4658), spontaneously-delivered bystander CPR provided without DA (BCPR; n=6630), and both BCPR and dispatcher assistance was not provided (No BCPR-No DA; n=16,187).

CPR performance in the presence of audiovisual feedback or football shoulder pads.

Objective: The initiation of cardiopulmonary resuscitation (CPR) can be complicated by the use of protective equipment in contact sports, and the rate of success in resuscitating the patient depends on the time from incident to start of CPR. The aim of our study was to see if (1) previous training, (2) the presence of audiovisual feedback and (3) the presence of football shoulder pads (FSP) affected the quality of chest compressions.

Methods: Six basic life support certified athletic training students (BLS-ATS), six basic life support certified emergency medical service personnel (BLS-EMS) and six advanced cardiac life support certified emergency medical service personnel (ACLS-EMS) participated in a crossover manikin study.

Comparison of quality of chest compressions during training of laypersons using Push Heart and Little Anne manikins using blinded CPRcards.

Background: Mass Cardio-Pulmonary Resuscitation (CPR) training using less expensive and easily portable manikins is one way to increase the number of trained laypeople in a short time. The easy-to-carry, low-cost CPR training model called Push Heart (PH) is widely used in Japan. The aim of this study was to examine if PH can achieve chest compression quality that is similar to that using more conventional Little Anne (LA) manikins for training laypersons.