Dispatcher instructions for bystander cardiopulmonary resuscitation and neurologically intact survival after bystander-witnessed out-of-hospital cardiac arrests: a nationwide, population-based observational study

Critical Care

Akira Funada¹  Yumiko Goto²  Yoshikazu Goto³  Tetsuo Maeda³ 

[1] Department of Cardiology, Osaka Saiseikai Senri Hospital, Tukumodai 1-1-6, 565-0862, Suita, Japan;Department of Cardiology, Yawata Medical Center, Yawata I 12-7, 923-8551, Komatsu, Japan;Department of Emergency and Critical Care Medicine, Kanazawa University Hospital, Takaramachi 13-1, 920-8640, Kanazawa, Japan;

关键词: Out-of-hospital cardiac arrest;    Dispatcher-assisted cardiopulmonary resuscitation;    Instruction;    Outcome;    Epidemiology;   

DOI  :  10.1186/s13054-021-03825-w

来源: Springer

【 摘 要 】

BackgroundThe International Liaison Committee on Resuscitation recommends that dispatchers provide instructions to perform compression-only cardiopulmonary resuscitation (CPR) to callers responding to adults with out-of-hospital cardiac arrest (OHCA). This study aimed to determine the optimal dispatcher-assisted CPR (DA-CPR) instructions for OHCA.MethodsWe analysed the records of 24,947 adult patients (aged ≥ 18 years) who received bystander DA-CPR after bystander-witnessed OHCA. Data were obtained from a prospectively recorded Japanese nationwide Utstein-style database for a 2-year period (2016–2017). Patients were divided into compression-only DA-CPR (n = 22,778) and conventional DA-CPR (with a compression-to-ventilation ratio of 30:2, n = 2169) groups. The primary outcome measure was 1-month neurological intact survival, defined as a cerebral performance category score of 1–2 (CPC 1–2).ResultsThe 1-month CPC 1–2 rate was significantly higher in the conventional DA-CPR group than in the compression-only DA-CPR group (before propensity score (PS) matching, 7.5% [162/2169] versus 5.8% [1309/22778], p < 0.01; after PS matching, 7.5% (162/2169) versus 5.7% (123/2169), p < 0.05). Compared with compression-only DA-CPR, conventional DA-CPR was associated with increased odds of 1-month CPC 1–2 (before PS matching, adjusted odds ratio 1.39, 95% confidence interval [CI] 1.14–1.70, p < 0.01; after PS matching, adjusted odds ratio 1.34, 95% CI 1.00–1.79, p < 0.05).ConclusionWithin the limitations of this retrospective observational study, conventional DA-CPR with a compression-to-ventilation ratio of 30:2 was preferable to compression-only DA-CPR as an optimal DA-CPR instruction for coaching callers to perform bystander CPR for adult patients with bystander-witnessed OHCAs.

【 授权许可】

CC BY