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

Tanaka, Shota / Sagisaka, Ryo / Nakagawa, Koshi / Tanaka, Hideharu

2024 Volume 35, Issue 1, Page(s) 44–50

Abstract: 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 ... ...

Abstract	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. Results: Eighty-four subjects (48 skiers and 36 snowboarders) were analyzed. Males accounted for 73 cases of all 84 fatalities (86.9%), including 44 skiers (91.7%) and 29 snowboarders (80.6%). Skiers aged ≥50 y and snowboarders aged 20-35 y had the highest number of fatal accidents (32 and 18 cases, respectively). Regarding location, 26 fatal accidents occurred on slopes, and 58 occurred out of slopes (skiers, 11 and 37 cases; snowboarders, 15 and 21 cases, respectively). Among skiers, head and neck trauma accounted for the cause of death in 13 cases (27.1%) and asphyxiation in 11 cases (22.9%). Among snowboarders, head and neck trauma accounted for the cause of death in 14 cases (38.9%) and asphyxiation in 14 cases (38.9%). Conclusions: Males, particularly those aged ≥50 among skiers and 20-35 among snowboarders, should be wary of the potential for injuries to the head, neck, and airway when skiing or snowboarding. In this study, traumatic deaths from crashing into trees and asphyxiation from deep snow immersion accidents accounted for approximately half of fatal ski accidents in Japan.
MeSH term(s)	Male ; Humans ; Japan/epidemiology ; Retrospective Studies ; Accidents ; Asphyxia/epidemiology ; Asphyxia/etiology ; Research Design
Language	English
Publishing date	2024-02-11
Publishing country	United States
Document type	Journal Article
ZDB-ID	1238909-2
ISSN	1545-1534 ; 1080-6032
ISSN (online)	1545-1534
ISSN	1080-6032
DOI	10.1177/10806032241226680
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Article ; Online: Sport level and sex differences in sport-related concussion among Japanese collegiate athletes: Epidemiology, knowledge, reporting behaviors, and reported symptoms.

Tanaka, Shota / Sagisaka, Ryo / Sone, Etsuko / Tanaka, Hideharu

Sports medicine and health science

2023 Volume 5, Issue 3, Page(s) 229–238

Abstract: 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 ... ...

Abstract	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. The prevalence of SRC during the academic year 2016-2017 was 2.68 (95% confidence interval [
Language	English
Publishing date	2023-07-07
Publishing country	Netherlands
Document type	Journal Article
ISSN	2666-3376
ISSN (online)	2666-3376
DOI	10.1016/j.smhs.2023.07.002
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Article: [Present status of intoxication education on Emergency Life Saving Technician].

Tanaka, Hideharu

Chudoku kenkyu : Chudoku Kenkyukai jun kikanshi = The Japanese journal of toxicology

2015 Volume 28, Issue 1, Page(s) 17–21

MeSH term(s)	Education, Medical ; Emergency Medical Services ; Toxicology/education
Language	Japanese
Publishing date	2015-03
Publishing country	Japan
Document type	Journal Article
ZDB-ID	1154823-x
ISSN	0914-3777
ISSN	0914-3777
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Article ; Online: 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.

Miyako, Joji / Nakagawa, Koshi / Sagisaka, Ryo / Tanaka, Shota / Takeuchi, Hidekazu / Takyu, Hiroshi / Tanaka, Hideharu

Resuscitation plus

2023 Volume 15, Page(s) 100438

Abstract: 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 ... ...

Abstract	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). Survival at 1-month post-OHCA and the percentage of favourable neurological function in each ROSC phase were analysed. In addition, factors associated with Pre-EMS-arrival-ROSC were identified using multivariable logistic regression analysis. The time of occurrence of OHCA was classified into four-time categories as follows. Rush hour on morning [7:00-9:00], Rush hour on evening [17:00-21:00], Daytime [9:00-17:00], and Night or Early morning [21:00-7:00]. Results: Among the 63,089 OHCA in the dataset, 702 were analysed. At 1-month after OHCA occurrence, Pre-EMS-arrival ROSC had higher survival rates than post-EMS-arrival ROSC (86.8% vs. 54.1%) and CPC1-2 rates (73.6% vs. 38.5%). Pre-EMS-arrival ROSC was associated (adjusted odds ratio [95% confidence interval]) with non-older-adult patients (1.59 [1.05-2.43]), witnessed OHCA (1.82 [1.03-3.31]), evening rush-hour (17:00-21:00; 2.08 [1.05-4.11]), conventional CPR (33.42 [7.82-868.44]), hands-only CPR (17.06 [4.30-436.48]), bystander defibrillation performed once (3.31 [1.59-6.99]). Conclusions: In an OHCA at a station in Tokyo, ROSC achieved with bystander treatment alone had a better outcome at 1-month compared to ROSC with EMS intervention.
Language	English
Publishing date	2023-08-09
Publishing country	Netherlands
Document type	Journal Article
ISSN	2666-5204
ISSN (online)	2666-5204
DOI	10.1016/j.resplu.2023.100438
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Article ; Online: Increasing the shockable rhythm and survival rate by dispatcher-assisted cardiopulmonary resuscitation in Japan.

Kayanuma, Minoru / Sagisaka, Ryo / Tanaka, Hideharu / Tanaka, Shota

Resuscitation plus

2021 Volume 6, Page(s) 100122

Abstract: 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 ... ...

Abstract	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.The primary outcome was good brain function prognosis after 1 month, while the secondary outcome was the rate of shockable rhythm on ECG at the time of EMS arrival.EMS arrival time at the site was stratified into 7 min, 8-10 min, and 11-20 min using tertiles. Adjusted odds ratios (AORs) and 95% confidence intervals (95% CIs) were estimated using multivariate logistic regression analysis to assess the association between DA-BCPR and outcomes in each tertile. Results: There were 37,269 (35%), 18,109 (17%), and 52,291 (49%) patients in the DA-BCPR, Only-BCPR, and no-BCPR groups, respectively. Compared to No-BCPR, DA-BCPR was associated with favourable neurological outcomes regardless of the time from 119 call to EMS contact (AOR, 1.56, 2.01, 1.82; 95% CI, 1.43-1.71, 1.80-2.24, 1.52-2.19; ≤7 min, 8-10 min, and 11-20 min, respectively). DA-BCPR showed association with the shockable rhythm rate upon EMS arrival regardless of the time 119 call to EMS contact (AOR, 1.30, 1.60, 1.90; 95% CI, 1.23-1.38, 1.51-1.70, 1.75-2.06; ≤7 min, 8-10 min, and 11-20 min, respectively). Conclusion: Providing dispatcher assistance with CPR to 119 callers improves the long-term outcome regardless of the patient's age and EMS response time. Thus, encouraging dispatchers to promote BCPR is important for increasing the shockable rhythm rate and improving the brain function prognosis.
Language	English
Publishing date	2021-04-24
Publishing country	Netherlands
Document type	Journal Article
ISSN	2666-5204
ISSN (online)	2666-5204
DOI	10.1016/j.resplu.2021.100122
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Article: Right paraduodenal hernia presenting with strangulated obstruction with intestinal malrotation: a case report.

Tanaka, Hideharu / Mitsutomoe, Saki / Nagao, Narutoshi / Komori, Shuji / Suetsugu, Tomonari / Iwata, Yoshinori / Watanabe, Taku / Tanaka, Chihiro / Kawai, Masahiko

Journal of surgical case reports

2024 Volume 2024, Issue 5, Page(s) rjae311

Abstract: A paraduodenal hernia is a rare cause of an internal hernia that may require massive bowel resection; prompt diagnosis and surgical treatment are essential. In cases of malrotation, strangulation may occur both inside and outside the hernial sac. ... ...

Abstract	A paraduodenal hernia is a rare cause of an internal hernia that may require massive bowel resection; prompt diagnosis and surgical treatment are essential. In cases of malrotation, strangulation may occur both inside and outside the hernial sac. Strangulation outside the hernial sac makes the preoperative diagnosis more difficult. Herein, we report a patient with a right paraduodenal hernia, intestinal malrotation, and strangulation outside the hernia. An 86-year-old woman was admitted to our hospital with abdominal pain. Enhanced computed tomography showed a closed-loop obstruction of the hypo-enhancing small bowel and absence of a horizontal duodenal leg. The patient underwent an emergency laparotomy and was diagnosed with strangulated bowel obstruction due to a right paraduodenal hernia and malrotation. The patient underwent resection of the ischemic ileum, closure of the hernial orifice, and repositioning of the intestine. The postoperative course was uneventful. The patient reported no abdominal discomfort after 7 months of follow-up.
Language	English
Publishing date	2024-05-18
Publishing country	England
Document type	Case Reports
ZDB-ID	2580919-2
ISSN	2042-8812
ISSN	2042-8812
DOI	10.1093/jscr/rjae311
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Article ; Online: Early endotracheal intubation improves neurological outcome following witnessed out-of-hospital cardiac arrest in Japan: a population-based observational study.

Nakagawa, Koshi / Sagisaka, Ryo / Tanaka, Shota / Takyu, Hiroshi / Tanaka, Hideharu

Acute medicine & surgery

2021 Volume 8, Issue 1, Page(s) e650

Abstract: 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 ... ...

Abstract	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. We included 14,969 witnessed and intubated adult out-of-hospital cardiac arrest cases. Patients were divided into Shockable ( Results: The logistic curve for CPC 1 or 2 showed similar shapes and indicated a decreasing outcome over time. From the results of multivariable logistic regression, in the Shockable cohort, endotracheal intubation time delay was correlated with decreasing favorable outcomes: CPC 1 or 2 (adjusted odds ratio, 0.89; 95% confidence interval, 0.82-0.87). Results were the same for the Non-shockable cohort: CPC 1 or 2 (adjusted odds ratio, 0.94; 95% confidence interval, 0.89-0.99). Conclusion: Early endotracheal intubation was correlated with favorable neurological outcome. Training for intubation skills and improving protocols are needed for carrying out early endotracheal intubation.
Language	English
Publishing date	2021-05-01
Publishing country	United States
Document type	Journal Article
ZDB-ID	2751184-4
ISSN	2052-8817 ; 2052-8817
ISSN (online)	2052-8817
ISSN	2052-8817
DOI	10.1002/ams2.650
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Article ; Online: The association of delayed advanced airway management and neurological outcome after out-of-hospital cardiac arrest in Japan.

Nakagawa, Koshi / Sagisaka, Ryo / Morioka, Daigo / Tanaka, Shota / Takyu, Hiroshi / Tanaka, Hideharu

The American journal of emergency medicine

2022 Volume 62, Page(s) 89–95

Abstract: 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 ... ...

Abstract	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. We included patients aged ≥8 years with OHCA for whom AAM (i.e., supraglottic airway or endotracheal intubation) was performed in a prehospital setting (n = 182,913). We divided the patients into shockable (n = 11,740) and non-shockable (n = 171,173) cohorts based on the initial electrocardiogram rhythm. Multilevel logistic regression analysis estimated the association between AAM time (patient contact-to-AAM performance interval) at the patient level (1-min unit increments), prefecture level (> 9.2 min vs. ≤ 9.2 min) and CPC 1-2. Results: A delay in AAM time was negatively associated with CPC 1-2 (adjusted odds ratio [AOR], 0.92, 0.96; 95% confidence interval [CI], 0.90-0.93, 0.95-0.97, respectively), regardless of initial rhythm. At the prefecture level, a delay in AAM time was negatively associated with CPC 1-2 (AOR, 0.77, 0.68; 95% CI, 0.58-1.04, 0.50-0.94, respectively) only in the non-shockable cohort. Conclusion: A delay in AAM performance was negatively associated with CPC 1-2 in both shockable and non-shockable cohorts. Moreover, a delay in AAM performance at the prefecture level was negatively associated with CPC 1-2 in the non-shockable cohort.
MeSH term(s)	Humans ; Out-of-Hospital Cardiac Arrest/therapy ; Out-of-Hospital Cardiac Arrest/complications ; Cardiopulmonary Resuscitation ; Japan/epidemiology ; Retrospective Studies ; Emergency Medical Services ; Airway Management ; Registries
Language	English
Publishing date	2022-10-13
Publishing country	United States
Document type	Journal Article
ZDB-ID	605890-5
ISSN	1532-8171 ; 0735-6757
ISSN (online)	1532-8171
ISSN	0735-6757
DOI	10.1016/j.ajem.2022.10.010
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Book: Shōbō soshiki ni okeru shōgai kyōiku to igakuteki chishiki

Tanaka, Hideharu

(Purehosupitaru mook = : Prehospital ; 8)

2009

Author's details	kanshū Ishihara Shin, Mashiko Kunihiro ; henshū Tanaka Hideharu
Series title	Purehosupitaru mook = : Prehospital ; 8
MeSH term(s)	Firefighters/education ; Emergency Medical Technicians/education ; Emergency Medical Services
Keywords	Japan
Language	Japanese
Size	iv, 153, ii p. :, ill. ;, 30 cm.
Edition	Dai 1-han.
Publisher	Nagai Shoten
Publishing place	Ōsaka
Document type	Book
ISBN	9784815918453 ; 4815918457
Database	Catalogue of the US National Library of Medicine (NLM)

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Article ; Online: Overview and future prospects of out-of-hospital cardiac arrest registries in Japan.

Okada, Yohei / Nakagawa, Koshi / Tanaka, Hideharu / Takahashi, Haruka / Kitamura, Tetsuhisa / Kiguchi, Takeyuki / Nishioka, Norihiro / Kitamura, Nobuya / Tagami, Takashi / Inoue, Akihiko / Hifumi, Toru / Sakamoto, Tetsuya / Kuroda, Yasuhiro / Iwami, Taku

Resuscitation plus

2024 Volume 17, Page(s) 100578

Abstract: Aim: Out-of-hospital cardiac arrest (OHCA) is a life-threatening emergency with high mortality. The "chain of survival" is critical to improving patient outcomes. To develop and enhance this chain of survival, measuring and monitoring the resuscitation ... ...

Abstract	Aim: Out-of-hospital cardiac arrest (OHCA) is a life-threatening emergency with high mortality. The "chain of survival" is critical to improving patient outcomes. To develop and enhance this chain of survival, measuring and monitoring the resuscitation processes and outcomes are essential for quality assurance. In Japan, several OHCA registries have successfully been implemented at both local and national levels. We aimed to review and summarise the conception, strengths, and challenges of OHCA registries in Japan. Method and results: The following representing registries in Japan were reviewed: the All-Japan Utstein registry, the Utstein Osaka Project/the Osaka-CRITICAL study, the SOS-KANTO study, the JAAM-OHCA study, and the SAVE-J II study. The All-Japan Utstein registry, operated by the Fire and Disaster Management Agency of Japan and one of the largest nationwide population-based registries in the world, collects data concerning all patients with OHCA in Japan, excluding in-hospital data. Other research- and hospital-based registries collect detailed out-of-hospital and in-hospital data. The Osaka-CRITICAL study and the SOS-KANTO study are organized at regional levels, and hospitals in the Osaka prefecture and in the Kanto area participate in these registries. The JAAM-OHCA study is managed by the Japanese Association of Acute Medicine and includes 107 hospitals throughout Japan. The Save-J II study focuses on patients with OHCA treated with extracorporeal cardiopulmonary resuscitation. Conclusion: Each OHCA registry has its own philosophy, strengths, perspectives, and challenges; however, all have been successful in contributing to the improvement of emergency medical service (EMS) systems through the quality improvement process. These registries are expected to be further utilized to enhance EMS systems and improve outcomes for patients with OHCA, while also contributing to the field of resuscitation science.
Language	English
Publishing date	2024-02-10
Publishing country	Netherlands
Document type	Journal Article ; Review
ISSN	2666-5204
ISSN (online)	2666-5204
DOI	10.1016/j.resplu.2024.100578
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