Potential association of bystander-patient relationship with bystander response and patient survival in daytime out-of-hospital cardiac arrest

RESUSCITATION

卷:86

Article

Tanaka, Yoshio^1,2  Maeda, Tetsuo¹  Kamikura, Takahisa¹  Nishi, Taiki¹  Omi, Wataru³  Hashimoto, Masaaki⁴  Sakagami, Satoru³  Inaba, Hideo¹ 

[1] Kanazawa Univ, Grad Sch Med, Dept Emergency Med Sci, Kanazawa, Ishikawa 9208641, Japan

[2] Shin Kyotominami Hosp, Dept Surg, Shimogyo Ku, Kyoto 6008861, Japan

[3] Kanazawa Med Ctr, Dept Cardiol, Kanazawa, Ishikawa 9208650, Japan

[4] Noto Gen Hosp, Ctr Emergency Med, Nanao, Ishikawa 9260816, Japan

关键词: Cardiopulmonary resuscitation;    Out-of-hospital cardiac arrest;    Patient survival;    Bystander-patient relationship;    Time of day;   

DOI  :  10.1016/j.resuscitation.2014.11.004

来源: Elsevier

【 摘 要 】

Aim: To investigate whether the bystander-patient relationship affects bystander response to out-of-hospital cardiac arrest (OHCA) and patient outcomes depending on the time of day. Methods: This population-based observational study in Japan involving 139,265 bystander-witnessed OHCAs (90,426 family members, 10,479 friends/colleagues, and 38,360 others) without prehospital physician involvement was conducted from 2005 to 2009. Factors associated with better bystander response [early emergency call and bystander cardiopulmonary resuscitation (BCPR)] and 1-month neurologically favourable survival were assessed. Results: The rates of dispatcher-assisted CPR during daytime (7:00-18:59) and nighttime (19:00-6:59) were highest in family members (45.6% and 46.1%, respectively, for family members; 28.7% and 29.2%, respectively, for friends/colleagues; and 28.1% and 25.3%, respectively, for others). However, the BCPR rates were lowest in family members (35.5% and 37.8%, respectively, for family members; 43.7% and 37.8%, respectively, for friends/colleagues; and 59.3% and 50.0%, respectively, for others). Large delays (>= 5 min) in placing emergency calls and initiating BCPR were most frequent in family members. The overall survival rate was lowest (2.7%) for family members and highest (9.1%) for friends/colleagues during daytime. Logistic regression analysis revealed that the effect of bystander relationship on survival was significant only during daytime [adjusted odds ratios (95% CI) for survival from daytime OHCAs with family as reference were 1.51 (1.36-1.68) for friends/colleagues and 1.23 (1.13-1.34) for others]. Conclusions: Family members are least likely to perform BCPR and OHCAs witnessed by family members are least likely to survive during daytime. Different strategies are required for family-witnessed OHCAs. (C) 2014 Elsevier Ireland Ltd. All rights reserved.

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