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Li S, Qin C, Zhang H, Maimaitiming M, Shi J, Feng Y, Huang K, Bi Y, Wang M, Zhou Q, Jin Y, Zheng ZJ. Survival After Out-of-Hospital Cardiac Arrest Before and After Legislation for Bystander CPR. JAMA Netw Open 2024; 7:e247909. [PMID: 38669021 PMCID: PMC11053379 DOI: 10.1001/jamanetworkopen.2024.7909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Accepted: 02/23/2024] [Indexed: 04/29/2024] Open
Abstract
Importance The lack of evidence-based implementation strategies is a major contributor to increasing mortality due to out-of-hospital cardiac arrest (OHCA) in developing countries with limited resources. Objective To evaluate whether the implementation of legislation is associated with increased bystander cardiopulmonary resuscitation (CPR) and automated external defibrillator (AED) use and improved clinical outcomes for patients experiencing OHCA and to provide policy implications for low-income and middle-income settings. Design, Setting, and Participants This observational cohort study analyzed a prospective city registry of patients with bystander-witnessed OHCA between January 1, 2010, and December 31, 2022. The Emergency Medical Aid Act was implemented in Shenzhen, China, on October 1, 2018. An interrupted time-series analysis was used to assess changes in outcomes before and after the law. Data analysis was performed from May to October 2023. Exposure The Emergency Medical Aid Act stipulated the use of AEDs and CPR training for the public and provided clear legal guidance for OHCA rescuing. Main Outcomes and Measures The primary outcomes were rates of bystander-initiated CPR and use of AEDs. Secondary outcomes were rates of prehospital return of spontaneous circulation (ROSC), survival to arrival at the hospital, and survival at discharge. Results A total of 13 751 patients with OHCA (median [IQR] age, 59 [43-76] years; 10 011 men [72.83%]) were included, with 7858 OHCAs occurring during the prelegislation period (January 1, 2010, to September 30, 2018) and 5893 OHCAs occurring during the postlegislation period (October 1, 2018, to December 31, 2022). The rates of bystander-initiated CPR (320 patients [4.10%] vs 1103 patients [18.73%]) and AED use (214 patients [4.12%] vs 182 patients [5.29%]) increased significantly after legislation implementation vs rates before the legislation. Rates of prehospital ROSC (72 patients [0.92%] vs 425 patients [7.21%]), survival to arrival at the hospital (68 patients [0.87%] vs 321 patients [5.45%]), and survival at discharge (44 patients [0.56%] vs 165 patients [2.80%]) were significantly increased during the postlegislation period. Interrupted time-series models demonstrated a significant slope change in the rates of all outcomes. Conclusions and Relevance These findings suggest that implementation of the Emergency Medical Aid Act in China was associated with increased rates of CPR and public AED use and improved survival of patients with OHCA. The use of a systemwide approach to enact resuscitation initiatives and provide legal support may reduce the burden of OHCA in low-income and middle-income settings.
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Affiliation(s)
- Siwen Li
- Shenzhen Center for Prehospital Care, Futian District, Shenzhen, China
- Department of Global Health, School of Public Health, Peking University, Beijing, China
- Institute for Global Health and Development, Peking University, Beijing, China
| | - Chongzhen Qin
- Shenzhen Center for Prehospital Care, Futian District, Shenzhen, China
| | - Hongjuan Zhang
- Shenzhen Center for Prehospital Care, Futian District, Shenzhen, China
| | - Mailikezhati Maimaitiming
- Department of Global Health, School of Public Health, Peking University, Beijing, China
- Institute for Global Health and Development, Peking University, Beijing, China
| | - Junyi Shi
- Department of Global Health, School of Public Health, Peking University, Beijing, China
- Institute for Global Health and Development, Peking University, Beijing, China
| | - YiKai Feng
- Department of Global Health, School of Public Health, Peking University, Beijing, China
- Institute for Global Health and Development, Peking University, Beijing, China
| | - Kepei Huang
- Department of Global Health, School of Public Health, Peking University, Beijing, China
- Institute for Global Health and Development, Peking University, Beijing, China
| | - Yanxin Bi
- Department of Global Health, School of Public Health, Peking University, Beijing, China
- Institute for Global Health and Development, Peking University, Beijing, China
| | - Minmin Wang
- Department of Global Health, School of Public Health, Peking University, Beijing, China
- Institute for Global Health and Development, Peking University, Beijing, China
| | - Qiang Zhou
- Shenzhen Center for Prehospital Care, Futian District, Shenzhen, China
| | - Yinzi Jin
- Department of Global Health, School of Public Health, Peking University, Beijing, China
- Institute for Global Health and Development, Peking University, Beijing, China
| | - Zhi-Jie Zheng
- Department of Global Health, School of Public Health, Peking University, Beijing, China
- Institute for Global Health and Development, Peking University, Beijing, China
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Aslanlar E, Alharach CK, Kara İ, Onal O, Aslanlar DA. The Use of End-Tidal CO 2 and Integrated Pulmonary Index to Predict Postspinal Hypotension in Cesarean Section. J Clin Med 2023; 13:85. [PMID: 38202092 PMCID: PMC10779670 DOI: 10.3390/jcm13010085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 12/11/2023] [Accepted: 12/19/2023] [Indexed: 01/12/2024] Open
Abstract
Early diagnosis and treatment of postspinal hypotension (PSH) in obstetric anaesthesia reduces the risk of maternofetal complications. In this study, the effect of EtCO2 and the integrated pulmonary index (IPI) in predicting PSH was investigated. Patients scheduled for cesarean section under spinal anaesthesia were included. The Capnostream 35 respiratory monitor (Medtronic, Inc., Dublin, Ireland) was used for EtCO2 and IPI. PSH developed in 52 (63.4%) of the 82 patients. EtCO2 and IPI values decreased significantly compared with baseline values in patients who developed PSH. There were statistically significant differences in EtCO2 (p = 0.001) and the IPI change (p = 0.045) in patients who developed PSH compared with those who did not. It was found that the EtCO2 difference had an independent effect on predicting PSH (p < 0.05), whereas the IPI difference did not (p > 0.05). One unit decrease in EtCO2 from the baseline increased the risk of PSH by 3.3 times. ROC curve analysis showed that the magnitude of change in EtCO2 was diagnostic for predicting PSH (AUC: 0.90 (0.83-0.97; p < 0.001)). IPI showed no predictive value for postspinal hypotension in cesarean section. However, EtCO2 monitoring, which is non-invasive and real-time monitoring, can be used to predict postspinal hypotension.
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Affiliation(s)
- Emine Aslanlar
- Department of Anesthesiology, Medicine Faculty, Selcuk University, Ardıçlı, Akademi, Celal Bayar St. No. 313, Konya 42250, Turkey; (İ.K.); (O.O.)
| | - Camille Kamel Alharach
- Department of Anesthesiology, Medicine Faculty, Başkent University, Hocacihan Mahallesi Saray Caddesi No. 1, Konya 42080, Turkey;
| | - İnci Kara
- Department of Anesthesiology, Medicine Faculty, Selcuk University, Ardıçlı, Akademi, Celal Bayar St. No. 313, Konya 42250, Turkey; (İ.K.); (O.O.)
| | - Ozkan Onal
- Department of Anesthesiology, Medicine Faculty, Selcuk University, Ardıçlı, Akademi, Celal Bayar St. No. 313, Konya 42250, Turkey; (İ.K.); (O.O.)
| | - Durmuş Ali Aslanlar
- Meram State Hospital, Hacışaban, Yeni Meram St. No. 97, Konya 42090, Turkey;
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