Analysis of the characteristics of brain resuscitation in patients with out-of-hospital cardiac arrest after resuscitation
10.3760/cma.j.issn.1671-0282.2024.01.006
- VernacularTitle:院外心脏骤停复苏后实现心肺脑复苏患者特征分析探讨
- Author:
Jinshan WU
1
;
Xiaofan ZHANG
;
Lin JIANG
Author Information
1. 无锡市急救中心急救科，无锡 214023
- Keywords:
Out-of-hospital cardiac arrest;
Cardiopulmonary and cerebral resuscitation;
Pre-hospital care;
Pre-hospital survival;
First medical contact
- From:
Chinese Journal of Emergency Medicine
2024;33(1):33-38
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To analyze and discuss the characteristics of cardiopulmonary and cerebral resuscitation (CPCR) in patients after out-of-hospital cardiac arrest (OHCA).Methods:The data of OHCA patients admitted to the directly-managed branch of the Wuxi Emergency Medical Center, covering the period from December 26, 2016, at 7:45 to August 26, 2022, at 7:45. The analysis included the first electrocardiogram (ECG), clinical characteristics, pre-hospital emergency measures, and follow-up conditions in the hospital. Based on the Glasgow-Pittsburgh cerebral function grading at discharge, patients were divided into a CPCR group (grades 1-2) and a non-CPCR group (grades 3-5). The study compared the basic conditions, resuscitation times, and vital signs after resuscitation between the two groups to evaluate the factors affecting CPCR.Results:A total of 6 040 OHCA cases were treated, 3 002 cases received pre-hospital resuscitation. The initial ECG indicated a shockable rhythm in 185 cases, with a shockable rhythm rate of 6.16%. There were 293 pre-hospital survivors, with a pre-hospital survival rate of 9.76%. 170 cases survived to be discharged, with a discharge survival rate of 5.66%. Ultimately, 44 cases achieved CPCR, accounting for 25.88% of the cases that survived to discharge. There were statistically significant differences in terms of first-witness treatment, defibrillable rhythm ratio, defibrillation, response to pain stimulation after return of spontaneous circulation (ROSC), spontaneous breathing, light reflex, pulse oxygenation, and blood pressure between the CPCR and non-CPCR groups (all P<0.05). The CPCR group showed significantly higher proportions than the non-CPCR group in the defibrillatable rhythm (75.00% vs. 10.44%), undergoing defibrillation (70.46% vs. 9.24%), having spontaneous breathing after ROSC (86.36% vs. 17.27%), and having oxygen saturation >92% with systolic blood pressure >90 mmHg (86.36% vs. 39.76%).There were statistically significant differences between the CPCR and non-CPCR groups in the time from cardiac arrest (CA) to doctor reception, CA to first defibrillation, CA to ROSC, and CA to discharge or in-hospital death (all P<0.05). Conclusions:The patients with successful pre-hospital resuscitation and finally cerebral resuscitation were characterized by short times from OHCA to first medical contact (FMC) and from FMC to ROSC, appropriate pre-hospital vital sign management accompanied by partial neurological recovery, and comprehensive in-hospital neurological prognosis assessment.
