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論文

論文
Takei, Yutaka ; Inaba, Hideo ; Yachida, Takahiro ; Enami, Miki ; Goto, Yoshikazu ; Ohta, Keisuke
出版情報: Resuscitation.  81  pp.1492-1498,  2010-11-01.  Elsevier
URL: http://hdl.handle.net/2297/30223
概要: Review: The interval between collapse and emergency call influences the prognosis of out-of-hospital cardiac arrest (OHCA). To reduce the interval, it is essential to identify the causes of delay. Methods: Basal data were collected prospectively by fire departments from 3746 OHCAs witnessed or recognised by citizens and in which resuscitation was attempted by emergency medical technicians (EMTs) between 1 April 2003 and 31 March 2008. EMTs identified the reasons for call delay by interview. Results: The delay, defined as an interval exceeding 2 min (median value), was less frequent in the urban region, public places and for witnessed OHCAs. Delay was more frequent in care facilities and for elderly patients and OHCAs with longer response times. Multiple logistic regression analysis indicated that urban regions, care facilities and arrest witnesses are independent factors associated with delay. The ratio of correctable causes (human factors) was high at care facilities and at home, compared with other places. Calling others was a major reason for delay in all places. Performing cardiopulmonary resuscitation (CPR) and other treatments was another major reason at care facilities. Large delay, defined as an interval exceeding 5 min (upper-quartile value), was an independent factor associated with a low 1-year survival rate. Conclusion: The incidence of correctable causes of delay is high in the community. Correction of emergency call manuals in care facilities and public relation efforts to facilitate an early emergency call may be necessary. Basic life support (BLS) education should be modified to minimise delays related to making an emergency call. © 2010 Elsevier Ireland Ltd. 続きを見る
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論文

論文
Maeda, Tetsuo ; Yamashita, Akira ; Myojo, Yasuhiro ; Wato, Yukihiro ; Inaba, Hideo
出版情報: Resuscitation.  107  pp.80-87,  2016-10-01.  Elsevier Ireland Ltd
URL: http://hdl.handle.net/2297/46172
概要: Purpose To investigate the impacts of emergency calls made using mobile phones on the quality of dispatcher-assisted cardiopulmonary resuscitation (DA-CPR) and survival from out-of-hospital cardiac arrests (OHCAs) that were not witnessed by emergency medical service (EMS). Methods In this prospective study, we collected data for 2530 DA-CPR-attempted medical emergency cases (517 using mobile phones and 2013 using landline phones) and 2980 non-EMS-witnessed OHCAs (600 using mobile phones and 2380 using landline phones). Time factors and quality of DA-CPR, backgrounds of callers and outcomes of OHCAs were compared between mobile and landline phone groups. Results Emergency calls are much more frequently placed beside the arrest victim in mobile phone group (52.7% vs. 17.2%). The positive predictive value and acceptance rate of DA-CPR in mobile phone group (84.7% and 80.6%, respectively) were significantly higher than those in landline group (79.2% and 70.9%). The proportion of good-quality bystander CPR in mobile phone group was significantly higher than that in landline group (53.5% vs. 45.0%). When analysed for all non-EMS-witnessed OHCAs, rates of 1-month survival and 1-year neurologically favourable survival in mobile phone group (7.8% and 3.5%, respectively) were higher than those in landline phone group (4.6% and 1.9%; p < 0.05). Multiple logistic regression analysis, including other backgrounds, revealed that mobile phone calls were associated with increased 1-month survival in the subgroup of OHCAs receiving bystander CPR (adjusted odds ratio, 1.84; 95% CI, 1.15–2.92). Conclusion Emergency calls made using mobile phones are likely to augment the survival from OHCAs by improving DA-CPR. © 2016 Elsevier Ireland Ltd<br />Embargo Period 12 months 続きを見る
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論文

論文
Hirose, Keiko ; Enami, Miki ; Matsubara, Hiroki ; Kamikura, Takahisa ; Takei, Yutaka ; Inaba, Hideo
出版情報: Journal of Intensive Care.  2  pp.28-,  2014-04-24.  BioMed Central Ltd.
URL: http://hdl.handle.net/2297/46173
概要: Background: The aim of this study was to investigate effects of basic life support (BLS) training on willingness of single rescuers to make emergency calls during out-of-hospital cardiac arrests (OHCAs) with no available help from others.Methods: A cross-over questionnaire survey was conducted with two questionnaires. Questionnaires were administered before and after two BLS courses in fire departments. One questionnaire included two scenarios which simulate OHCAs occurring in situations where help from other rescuers is available (Scenario-M) and not available (Scenario-S). The conventional BLS course was designed for multiple rescuers (Course-M), and the other was designed for single rescuers (Course-S).Results: Of 2,312 respondents, 2,218 (95.9%) answered all questions and were included in the analysis. Although both Course-M and Course-S significantly augmented willingness to make early emergency calls not only in Scenario-M but also in Scenario-S, the willingness for Scenario-M after training course was significantly higher in respondents of Course-S than in those of Course-M (odds ratio 1.706, 95% confidential interval 1.301-2.237). Multiple logistic regression analysis for Scenario-M disclosed that post training (adjusted odds ratio 11.6, 95% confidence interval 7.84-18.0), age (0.99, 0.98-0.99), male gender (1.77, 1.39-2.24), prior BLS experience of at least three times (1.46, 1.25-2.59), and time passed since most recent training during 3 years or less (1.80, 1.25-2.59) were independently associated with willingness to make early emergency calls and that type of BLS course was not independently associated with willingness. Therefore, both Course-M and Course-S similarly augmented willingness in Scenario-M. However, in multiple logistic regression analyses for Scenario-S, Course-S was independently associated with willingness to make early emergency calls in Scenario-S (1.26, 1.00-1.57), indicating that Course-S more efficiently augmented willingness. Moreover, post training (2.30, 1.86-2.83) and male gender (1.26, 1.02-1.57) were other independent factors associated with willingness in Scenario-S.Conclusions: BLS courses designed for single rescuers with no help available from others are likely to augment willingness to make early emergency calls more efficiently than conventional BLS courses designed for multiple rescuers. © 2014 Hirose et al. 続きを見る