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Miyoshi T, Endo H, Yamamoto H, Gonmori S, Miyata H, Takuma K, Sakurai A, Kitamura N, Tagami T, Nakada TA, Takeda M. An epidemiological assessment of choking-induced out-of-hospital cardiac arrest: A post hoc analysis of the SOS-KANTO 2012 study. Resuscitation 2022; 181:311-319. [PMID: 36334841 DOI: 10.1016/j.resuscitation.2022.10.022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 10/26/2022] [Accepted: 10/27/2022] [Indexed: 11/06/2022]
Abstract
OBJECTIVES The aim of this study was to reveal the neurological outcomes of choking-induced out-of-hospital cardiac arrest (OHCA) and evaluate the presence of witnesses, cardiopulmonary resuscitation (CPR) performed by a witness (bystander-witnessed CPR), and the proportion of patients with favourable neurological outcomes by the time from CPR by emergency medical services (EMS) to the return of spontaneous circulation (ROSC) (CPR-ROSC time). METHODS We retrospectively analysed the SOS-KANTO 2012 database, which included data of 16,452 OHCAs in Japan. We selected choking-induced OHCA patients aged ≥ 20 years. We evaluated the neurological outcomes at 1 month with the Cerebral Performance Category (CPC). We defined favourable neurological outcomes (CPCs: 1-2) and present the outcomes with descriptive statistics. RESULTS Of 1,045 choking-induced OHCA patients, 18 (1.7%) had a favourable neurological outcome. Of 1,045 OHCAs, 757 (72.6%) were witnessed, and 375 (36.0%) underwent bystander-witnessed CPR. Of the 18 OHCAs with favourable outcomes, 17 (94.4%) were witnessed, and 11 (61.1%) underwent bystander-witnessed CPR. With a CPR-ROSC time of 0-5 minutes, the proportion of patients with favourable neurological outcomes was 29.7%, ranging from 0% to 6% in the following time groups. CONCLUSIONS The neurological outcome of choking-induced OHCA was poor. The neurological outcomes deteriorated rapidly from 5 minutes after the initiation of CPR by EMS. The presence of witnesses and bystander-witnessed CPR may be factors that contribute to improved outcomes, but the effects were not remarkable. As another approach to reduce deaths due to choking, citizen education for the prevention of choking may be effective.
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Affiliation(s)
- Takahiro Miyoshi
- Kawasaki Municipal Hospital, Kanagawa, Japan; Department of Health Policy and Management, School of Medicine, Keio University, Tokyo, Japan
| | - Hideki Endo
- Department of Health Policy and Management, School of Medicine, Keio University, Tokyo, Japan; Department of Healthcare Quality Assessment, Graduate School of Medicine, University of Tokyo, Tokyo, Japan.
| | - Hiroyuki Yamamoto
- Department of Health Policy and Management, School of Medicine, Keio University, Tokyo, Japan; Department of Healthcare Quality Assessment, Graduate School of Medicine, University of Tokyo, Tokyo, Japan.
| | | | - Hiroaki Miyata
- Department of Health Policy and Management, School of Medicine, Keio University, Tokyo, Japan
| | | | - Atsushi Sakurai
- Division of Emergency and Critical Care Medicine, Department of Acute Medicine Nihon University School of Medicine, Tokyo, Japan
| | - Nobuya Kitamura
- Emergency and Critical Care Medicine, Kimitsu Chuo Hospital, Chiba, Japan
| | - Takashi Tagami
- Department of Emergency and Critical Care Medicine, Nippon Medical School Musashikosugi Hospital, Tokyo, Japan
| | - Taka-Aki Nakada
- Department of Emergency and Critical Care Medicine, Chiba University, Tokyo, Japan
| | - Munekazu Takeda
- Department of Critical Care and Emergency Medicine, Tokyo Women's Medical University, Tokyo, Japan
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Hsu SH, Sun JT, Huang EPC, Nishiuchi T, Song KJ, Leong B, Rahman NHNAB, Khruekarnchana P, Naroo GY, Hsieh MJ, Chang SH, Chiang WC, Huei-Ming Ma M. The predictive performance of current termination-of-resuscitation rules in patients following out-of-hospital cardiac arrest in Asian countries: A cross-sectional multicentre study. PLoS One 2022; 17:e0270986. [PMID: 35947598 PMCID: PMC9365191 DOI: 10.1371/journal.pone.0270986] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 06/21/2022] [Indexed: 11/23/2022] Open
Abstract
Background Termination-of-resuscitation rules (TORRs) in out-of-hospital cardiac arrest (OHCA) patients have been applied in western countries; in Asia, two TORRs were developed and have not been externally validated widely. We aimed to externally validate the TORRs using the registry of Pan-Asian Resuscitation Outcomes Study (PAROS). Methods PAROS enrolled 66,780 OHCA patients in seven Asian countries from 1 January 2009 to 31 December 2012. The American Heart Association-Basic Life Support and AHA-ALS (AHA-BLS), AHA-Advanced Life Support (AHA-ALS), Goto, and Shibahashi TORRs were selected. The diagnostic test characteristics and area under the receiver operating characteristic curve (AUC) were calculated. We further determined the most suitable TORR in Asia and analysed the variable differences between subgroups. Results We included 55,064 patients in the final analysis. The sensitivity, specificity, negative predictive value, positive predictive value, and AUC, respectively, for AHA-BLS, AHA-ALS, Goto, Shibashi TORRs were 79.0%, 80.0%, 19.6%, 98.5%, and 0.80; 48.6%, 88.3%, 9.8%, 98.5%, and 0.60; 53.8%, 91.4%, 11.2%, 99.0%, and 0.73; and 35.0%, 94.2%, 8.4%, 99.0%, and 0.65. In countries using the Goto TORR with PPV<99%, OHCA patients were younger, had more males, a higher rate of shockable rhythm, witnessed collapse, pre-hospital defibrillation, and survival to discharge, compared with countries using the Goto TORR with PPV ≥99%. Conclusions There was no single TORR fit for all Asian countries. The Goto TORR can be considered the most suitable; however, a high predictive performance with PPV ≥99% was not achieved in three countries using it (Korea, Malaysia, and Taiwan).
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Affiliation(s)
- Shu-Hsien Hsu
- Department of Emergency Medicine, National Taiwan University Hospital, Taipei, Taiwan
- Department of Emergency Medicine, National Taiwan University Hospital Hsin-Chu Branch, Hsin-Chu City, Taiwan
| | - Jen-Tang Sun
- Department of Emergency Medicine, Far Eastern Memorial Hospital, New Taipei City, Taiwan
| | - Edward Pei-Chuan Huang
- Department of Emergency Medicine, National Taiwan University Hospital, Taipei, Taiwan
- Department of Emergency Medicine, National Taiwan University Hospital Hsin-Chu Branch, Hsin-Chu City, Taiwan
| | - Tatsuya Nishiuchi
- Faculty of Medicine, Department of Acute Medicine, Kindai University, Osaka, Japan
| | - Kyoung Jun Song
- Department of Emergency Medicine, College of Medicine, Seoul National University, Seoul, Republic of Korea
| | - Benjamin Leong
- Emergency Medicine Department, National University Hospital, Singapore, Singapore
| | - Nik Hisamuddin Nik AB Rahman
- Department of Emergency Medicine, School of Medical Sciences, Health Campus, Universiti Sains Malaysia, Kota Bharu, Malaysia
| | | | - GY Naroo
- Department of Health & Medical Services, ED-Trauma Centre, Rashid Hospital, Dubai, United Arab Emirates
| | - Ming-Ju Hsieh
- Department of Emergency Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Shu-Hui Chang
- Institute of Epidemiology and Preventive Medicine, College of Public Health, Taipei, Taiwan
- * E-mail: (SHC); (WCC); (MHMM)
| | - Wen-Chu Chiang
- Department of Emergency Medicine, National Taiwan University Hospital, Taipei, Taiwan
- Department of Emergency Medicine, National Taiwan University Hospital Yun-Lin Branch, Douliu City, Taiwan
- * E-mail: (SHC); (WCC); (MHMM)
| | - Matthew Huei-Ming Ma
- Department of Emergency Medicine, National Taiwan University Hospital, Taipei, Taiwan
- Department of Emergency Medicine, National Taiwan University Hospital Yun-Lin Branch, Douliu City, Taiwan
- * E-mail: (SHC); (WCC); (MHMM)
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Goto Y, Funada A, Maeda T, Goto Y. Termination-of-resuscitation rule in the emergency department for patients with refractory out-of-hospital cardiac arrest: a nationwide, population-based observational study. Crit Care 2022; 26:137. [PMID: 35578295 PMCID: PMC9109290 DOI: 10.1186/s13054-022-03999-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 04/26/2022] [Indexed: 11/10/2022] Open
Abstract
Background In Japan, emergency medical service (EMS) providers are prohibited from field termination-of-resuscitation (TOR) in out-of-hospital cardiac arrest (OHCA) patients. In 2013, we developed a TOR rule for emergency department physicians (Goto’s TOR rule) immediately after hospital arrival. However, this rule is subject to flaws, and there is a need for revision owing to its relatively low specificity for predicting mortality compared with other TOR rules in the emergency department. Therefore, this study aimed to develop and validate a modified Goto’s TOR rule by considering prehospital EMS cardiopulmonary resuscitation (CPR) duration. Methods We analysed the records of 465,657 adult patients with OHCA from the All-Japan Utstein registry from 2016 to 2019 and divided them into two groups: development (n = 231,363) and validation (n = 234,294). The primary outcome measures were specificity, false-positive rate (FPR), and positive predictive value (PPV) of the revised TOR rule in the emergency department for predicting 1-month mortality. Results Recursive partitioning analysis for the development group in predicting 1-month mortality revealed that a modified Goto’s TOR rule could be defined if patients with OHCA met the following four criteria: (1) initial asystole, (2) unwitnessed arrest by any laypersons, (3) EMS-CPR duration > 20 min, and (4) no prehospital return of spontaneous circulation (ROSC). The specificity, FPR, and PPV of the rule for predicting 1-month mortality were 99.2% (95% confidence interval [CI], 99.0–99.4%), 0.8% (0.6–1.0%), and 99.8% (99.8–99.9%), respectively. The proportion of patients who fulfilled the rule and the area under the receiver operating curve (AUC) was 27.5% (95% CI 27.3–27.7%) and 0.904 (0.902–0.905), respectively. In the validation group, the specificity, FPR, PPV, proportion of patients who met the rule, and AUC were 99.1% (95% CI 98.9–99.2%), 0.9% (0.8–1.1%), 99.8% (99.8–99.8%), 27.8% (27.6–28.0%), and 0.889 (0.887–0.891), respectively. Conclusion The modified Goto’s TOR rule (which includes the following four criteria: initial asystole, unwitnessed arrest, EMS-CPR duration > 20 min, and no prehospital ROSC) with a > 99% predictor of 1-month mortality is a reliable tool for physicians treating refractory OHCAs immediately after hospital arrival. Supplementary Information The online version contains supplementary material available at 10.1186/s13054-022-03999-x.
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Affiliation(s)
- Yoshikazu Goto
- Department of Emergency and Critical Care Medicine, Kanazawa University Hospital, Takaramachi 13-1, Kanazawa, 920-8640, Japan.
| | - Akira Funada
- Department of Cardiology, Osaka Saiseikai Senri Hospital, Tukumodai 1-1-6, Suita, 565-0862, Japan
| | - Tetsuo Maeda
- Department of Emergency and Critical Care Medicine, Kanazawa University Hospital, Takaramachi 13-1, Kanazawa, 920-8640, Japan
| | - Yumiko Goto
- Department of Cardiology, Yawata Medical Center, Yawata I 12-7, Komatsu, 923-8551, Japan
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Lin YY, Lai YY, Chang HC, Lu CH, Chiu PW, Kuo YS, Huang SP, Chang YH, Lin CH. Predictive performances of ALS and BLS termination of resuscitation rules in out-of-hospital cardiac arrest for different resuscitation protocols. BMC Emerg Med 2022; 22:53. [PMID: 35346055 PMCID: PMC8958476 DOI: 10.1186/s12873-022-00606-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 03/13/2022] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Resuscitation guidance has advanced; however, the predictive performance of the termination of resuscitation (TOR) rule has not been validated for different resuscitation protocols published by the American Heart Association (AHA). METHODS A retrospective study validating the basic life support (BLS) and advanced life support (ALS) TOR rules was conducted using an Utstein-style database in Tainan city, Taiwan. Adult patients with nontraumatic out-of-hospital cardiac arrests from January 1, 2015, to December 31, 2015, (using the AHA 2010 resuscitation protocol) and from January 1, 2020, to December 31, 2020, (using the AHA 2015 resuscitation protocol) were included. The characteristics of rule performance were calculated, including sensitivity, specificity, positive predictive value (PPV) and negative predictive value. RESULTS Among 1260 eligible OHCA patients in 2015, 757 met the BLS TOR rule and 124 met the ALS TOR rule. The specificity and PPV for predicting unfavorable neurological outcomes were 61.1% and 99.0%, respectively, for the BLS TOR rule and 93.8% and 99.2%, respectively, for the ALS TOR rule. A total of 970 OHCA patients were enrolled in 2020, of whom 438 met the BLS TOR rule and 104 met the ALS TOR rule. The specificity and PPV for predicting unfavorable neurological outcomes were 85.7% and 100%, respectively, for the BLS TOR rule and 99.5% and 100%, respectively, for the ALS TOR rule. CONCLUSIONS Both the BLS and ALS TOR rules performed better when using the 2015 AHA resuscitation protocols compared to the 2010 protocols, with increased PPVs and decreased false-positive rates in predicting survival to discharge and good neurological outcomes at discharge. The BLS and ALS TOR rules can perform differently while the resuscitation protocols are updated. As the concepts and practices of resuscitation progress, the BLS and ALS TOR rules should be evaluated and validated accordingly.
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Affiliation(s)
- Yu-Yuan Lin
- Department of Emergency Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, 70403, Taiwan
| | - Yin-Yu Lai
- Department of Neurology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, 70403, Taiwan
| | - Hung-Chieh Chang
- Department of Emergency Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, 70403, Taiwan
| | - Chien-Hsin Lu
- Department of Emergency Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, 70403, Taiwan
| | - Po-Wei Chiu
- Department of Emergency Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, 70403, Taiwan
| | - Yuh-Shin Kuo
- Department of Emergency Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, 70403, Taiwan
| | - Shao-Peng Huang
- Department of Emergency Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, 70403, Taiwan
| | - Ying-Hsin Chang
- Department of Emergency Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, 70403, Taiwan
| | - Chih-Hao Lin
- Department of Emergency Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, 70403, Taiwan.
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Impact of dispatcher-assisted cardiopulmonary resuscitation on performance of termination of resuscitation criteria. Resuscitation 2022; 170:160-166. [PMID: 34871758 PMCID: PMC9272777 DOI: 10.1016/j.resuscitation.2021.11.034] [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: 09/17/2021] [Revised: 11/22/2021] [Accepted: 11/26/2021] [Indexed: 01/03/2023]
Abstract
BACKGROUND Current Advanced Life Support Termination of Resuscitation (TOR) guidelines suggest when to cease cardiopulmonary resuscitation (CPR). With the significant increase of Dispatch-Assisted CPR (DA-CPR) programs, the impact of DA-CPR on the TOR criteria performance is not clear. METHODS We conducted a secondary analysis of a prospectively collected registry, the Pan-Asian Resuscitation Outcomes Study. We included patients >15 years old with out-of-hospital cardiac arrest between 2014 and 2017 (after implementation of Singapore's DA-CPR program). We excluded patients with non-cardiac etiology, known do-not-resuscitate status, and healthcare provider bystanders. All cases were collected in accordance to Utstein standards. We evaluated the addition of DA-CPR to the diagnostic performance of TOR criteria using logistic regression modeling. The primary outcome was performance for predicting non-survival at 30 days. Sensitivity, specificity, and positive and negative predictive values were calculated. RESULTS Of the 6009 cases, 319 (5.3%) were still alive at 30 days. Patients had a mean age of 67.9 (standard deviation 15.7) years and were mostly male and Chinese. Almost half of patients had no bystander CPR. The TOR criteria differentiating DA-CPR from unassisted bystander CPR has a specificity of 94% and predictive value of death of 99%, which was not significantly different from undifferentiated CPR criteria. There were differences in adjusted association with survival between unassisted and DA-CPR. CONCLUSION Advanced life support TOR criteria retain high specificity and predictive value of death in the context of DA-CPR. Further research should explore the differences between unassisted CPR and DA-CPR to understand differential survival outcomes.
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Lee MJ, Shin TY, Lee CH, Moon JD, Roh SG, Kim CW, Park HE, Woo SH, Lee SJ, Shin SL, Oh YT, Lim YS, Choe JY, Na SH, Hwang SO. 2020 Korean Guidelines for Cardiopulmonary Resuscitation. Part 9. Education and system implementation for enhanced chain of survival. Clin Exp Emerg Med 2021; 8:S116-S124. [PMID: 34034453 PMCID: PMC8171173 DOI: 10.15441/ceem.21.029] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Accepted: 03/28/2021] [Indexed: 02/07/2023] Open
Affiliation(s)
- Mi Jin Lee
- Department of Emergency Medicine, Kyungpook National University School of Medicine, Daegu, Korea
| | - Tae-Yong Shin
- Department of Emergency Medicine, Asan Chungmu General Hospital, Asan, Korea
| | - Chang Hee Lee
- Department of Emergency Medical Technician, Namseoul University, Cheonan, Korea
| | - Jun Dong Moon
- Department of Emergency Medical Service, College of Health & Nursing, Kongju National University, Gongju, Korea
| | - Sang Gyun Roh
- Department of Emergency Medical Services, Sun Moon University, Asan, Korea
| | - Chan Woong Kim
- Department of Emergency Medicine, Chung-Ang University College of Medicine, Seoul, Korea
| | - Hyo Eun Park
- Division of Cardiology, Department of Internal Medicine, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Seon Hee Woo
- Department of Emergency Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Seung Joon Lee
- National Medical Emergency Center, National Medical Center, Seoul, Korea
| | - Seung Lyul Shin
- Department of Emergency Medicine, Inha University College of Medicine, Incheon, Korea
| | - Young Taeck Oh
- Department of Emergency Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Yong Su Lim
- Department of Emergency Medicine, Gachon University College of Medicine, Incheon, Korea
| | - Jae Young Choe
- Department of Emergency Medicine, Kyungpook National University School of Medicine, Daegu, Korea
| | - Sang-Hoon Na
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Sung Oh Hwang
- Department of Emergency Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
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Onoe A, Kajino K, Daya MR, Ong MEH, Nakamura F, Nakajima M, Takahashi H, Kishimoto M, Sakuramoto K, Muroya T, Ikegawa H, Kuwagata Y. Outcomes of patients with OHCA of presumed cardiac etiology that did not achieve prehospital restoration of spontaneous circulation: The All-Japan Utstein Registry experience. Resuscitation 2021; 162:245-250. [PMID: 33766662 DOI: 10.1016/j.resuscitation.2021.03.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 12/18/2020] [Accepted: 03/08/2021] [Indexed: 11/16/2022]
Abstract
BACKGROUND Correct identification of futile prehospital resuscitation for out-of-hospital cardiac arrest (OHCA) may reduce unnecessary transports. Prehospital return of spontaneous circulation (ROSC) is considered by many to be an important predictor of outcome. The purpose of this study was to evaluate OHCA victims without prehospital ROSC characteristics and their outcomes in relation to the universal Termination of Resuscitation (TOR) rule. METHODS A retrospective, population-based review of OHCA victims without prehospital ROSC from January 1, 2010 to December 31, 2017 in the All-Japan Utstein Registry. We compared those that met the universal TOR rule and those that did not for the primary outcome: one-month survival with neurologically favorable Cerebral Performance Category (CPC) 1 or 2. RESULTS 989,929 OHCA cases, 18 years of age or older, were registered in the All-Japan Utstein Registry and 525,801 cases were of presumed cardiac origin and had no prehospital ROSC. Of these, the one-month CPC was 1 or 2 for 3957 cases (0.8%). In the 'no ROSC' group who also met the TOR rule, the number of cases was 433,571 with a one-month survival of 0.9% (3799 cases), and the proportion with a CPC 1or 2 was 0.2% (699 cases). CONCLUSIONS Continued resuscitation and transport of cases with no field ROSC who fulfill the TOR rule is futile and could be considered for adoption in Japan.
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Affiliation(s)
- Atsunori Onoe
- Department of Emergency and Critical Care Medicine, Kansai Medical University, Hirakata, Osaka, Japan.
| | - Kentaro Kajino
- Department of Emergency and Critical Care Medicine, Kansai Medical University, Hirakata, Osaka, Japan
| | - Mohamud R Daya
- Department of Emergency Medicine, Oregon Health & Science University, Portland, OR, USA
| | - Marcus Eng Hock Ong
- Department of Emergency Medicine, Singapore General Hospital, Singapore; Health Services and Systems Research, Duke-NUS Medical School, Singapore
| | - Fumiko Nakamura
- Department of Emergency and Critical Care Medicine, Kansai Medical University, Hirakata, Osaka, Japan
| | - Mari Nakajima
- Department of Emergency and Critical Care Medicine, Kansai Medical University, Hirakata, Osaka, Japan
| | - Hiroki Takahashi
- Department of Emergency and Critical Care Medicine, Kansai Medical University, Hirakata, Osaka, Japan
| | - Masanobu Kishimoto
- Department of Emergency and Critical Care Medicine, Kansai Medical University, Hirakata, Osaka, Japan
| | - Kazuhito Sakuramoto
- Department of Emergency and Critical Care Medicine, Kansai Medical University, Hirakata, Osaka, Japan
| | - Takashi Muroya
- Department of Emergency and Critical Care Medicine, Kansai Medical University, Hirakata, Osaka, Japan
| | - Hitoshi Ikegawa
- Department of Emergency and Critical Care Medicine, Kansai Medical University, Hirakata, Osaka, Japan
| | - Yasuyuki Kuwagata
- Department of Emergency and Critical Care Medicine, Kansai Medical University, Hirakata, Osaka, Japan
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Abstract
PURPOSE OF REVIEW To describe the epidemiology, prognostication, and treatment of out- and in-hospital cardiac arrest (OHCA and IHCA) in elderly patients. RECENT FINDINGS Elderly patients undergoing cardiac arrest (CA) challenge the appropriateness of attempting cardiopulmonary resuscitation (CPR). Current literature suggests that factors traditionally associated with survival to hospital discharge and neurologically intact survival after CA cardiac arrest in general (e.g. presenting ryhthm, bystander CPR, targeted temperature management) may not be similarly favorable in elderly patients. Alternative factors meaningful for outcome in this special population include prearrest functional status, comorbidity load, the specific age subset within the elderly population, and CA location (i.e., nursing versus private home). Age should therefore not be a standalone criterion for withholding CPR. Attempts to perform CPR in an elderly patient should instead stem from a shared decision-making process. SUMMARY An appropriate CPR attempt is an attempt resulting in neurologically intact survival. Appropriate CPR in elderly patients requires better risk classification. Future research should therefore focus on the associations of specific within-elderly age subgroups, comorbidities, and functional status with neurologically intact survival. Reporting must be standardized to enable such evaluation.
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Affiliation(s)
- Sharon Einav
- anesthesiologist and intensivist, Director of Surgical Intensive Care, Shaare Zedek Medical Center and Associate Professor at the Hebrew University-Hadassah Faculty of Medicine, Ein-Kerem, Jerusalem, Israel
| | - Andrea Cortegiani
- anesthesiologist, Researcher at the Department of Surgical Oncological and Oral Science (Di.Chir.On.S.), University of Palermo; Department of Anesthesia Intensive Care and Emergency, Policlinico Paolo Giaccone, Palermo, Italy
| | - Esther-Lee Marcus
- geriatrician, head of Chronic Ventilator Dependent Division, Herzog Medical Center, and Clinical Senior Lecturer at the Hebrew University-Hadassah Faculty of Medicine, Ein-Kerem, Jerusalem, Israel
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Jung H, Lee MJ, Cho JW, Lee SH, Lee SH, Mun YH, Chung HS, Kim YH, Kim GM, Park SY, Jeon JC, Kim C. External validation of multimodal termination of resuscitation rules for out-of-hospital cardiac arrest patients in the COVID-19 era. Scand J Trauma Resusc Emerg Med 2021; 29:19. [PMID: 33504366 PMCID: PMC7838848 DOI: 10.1186/s13049-021-00834-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 01/12/2021] [Indexed: 01/23/2023] Open
Abstract
BACKGROUND Futile resuscitation for out-of-hospital cardiac arrest (OHCA) patients in the coronavirus disease (COVID)-19 era can lead to risk of disease transmission and unnecessary transport. Various existing basic or advanced life support (BLS or ALS, respectively) rules for the termination of resuscitation (TOR) have been derived and validated in North America and Asian countries. This study aimed to evaluate the external validation of these rules in predicting the survival outcomes of OHCA patients in the COVID-19 era. METHODS This was a multicenter observational study using the WinCOVID-19 Daegu registry data collected during February 18-March 31, 2020. The subjects were patients who showed cardiac arrest of presumed cardiac etiology. The outcomes of each rule were compared to the actual patient survival outcomes. The sensitivity, specificity, false positive value (FPV), and positive predictive value (PPV) of each TOR rule were evaluated. RESULTS In total, 170 of the 184 OHCA patients were eligible and evaluated. TOR was recommended for 122 patients based on the international basic life support termination of resuscitation (BLS-TOR) rule, which showed 85% specificity, 74% sensitivity, 0.8% FPV, and 99% PPV for predicting unfavorable survival outcomes. When the traditional BLS-TOR rules and KoCARC TOR rule II were applied to our registry, one patient met the TOR criteria but survived at hospital discharge. With regard to the FPV (upper limit of 95% confidence interval < 5%), specificity (100%), and PPV (> 99%) criteria, only the KoCARC TOR rule I, which included a combination of three factors including not being witnessed by emergency medical technicians, presenting with an asystole at the scene, and not experiencing prehospital shock delivery or return of spontaneous circulation, was found to be superior to all other TOR rules. CONCLUSION Among the previous nine BLS and ALS TOR rules, KoCARC TOR rule I was most suitable for predicting poor survival outcomes and showed improved diagnostic performance. Further research on variations in resources and treatment protocols among facilities, regions, and cultures will be useful in determining the feasibility of TOR rules for COVID-19 patients worldwide.
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Affiliation(s)
- Haewon Jung
- Department of Emergency Medicine, School of Medicine, Kyungpook National University, 680, Gukchaebosang-ro, Jung-gu, Daegu, 41944 Republic of Korea
| | - Mi Jin Lee
- Department of Emergency Medicine, School of Medicine, Kyungpook National University, 680, Gukchaebosang-ro, Jung-gu, Daegu, 41944 Republic of Korea
| | - Jae Wan Cho
- Department of Emergency Medicine, School of Medicine, Kyungpook National University, 680, Gukchaebosang-ro, Jung-gu, Daegu, 41944 Republic of Korea
| | - Sang Hun Lee
- Department of Emergency Medicine, Keimyung University Dongsan Hospital, Daegu, Republic of Korea
| | - Suk Hee Lee
- Department of Emergency Medicine, Catholic University of Daegu School of Medicine, Daegu, Republic of Korea
| | - You Ho Mun
- Department of Emergency Medicine, Yeungnam University College of Medicine, Daegu, Republic of Korea
| | - Han-sol Chung
- Department of Emergency Medicine, School of Medicine, Kyungpook National University, 680, Gukchaebosang-ro, Jung-gu, Daegu, 41944 Republic of Korea
- Department of Emergency Medicine, Kyungpook National University Chilgok Hospital, Daegu, Republic of Korea
| | - Yang Hun Kim
- Department of Emergency Medicine, Daegu Fatima Hospital, Daegu, Republic of Korea
| | - Gyun Moo Kim
- Department of Emergency Medicine, Catholic University of Daegu School of Medicine, Daegu, Republic of Korea
| | - Sin-youl Park
- Department of Emergency Medicine, Yeungnam University College of Medicine, Daegu, Republic of Korea
| | - Jae Cheon Jeon
- Department of Emergency Medicine, Keimyung University Dongsan Hospital, Daegu, Republic of Korea
| | - Changho Kim
- Department of Emergency Medicine, School of Medicine, Kyungpook National University, 680, Gukchaebosang-ro, Jung-gu, Daegu, 41944 Republic of Korea
- Department of Emergency Medicine, Kyungpook National University Chilgok Hospital, Daegu, Republic of Korea
| | - on behalf of the WinCOVID-19 consortium
- Department of Emergency Medicine, School of Medicine, Kyungpook National University, 680, Gukchaebosang-ro, Jung-gu, Daegu, 41944 Republic of Korea
- Department of Emergency Medicine, Keimyung University Dongsan Hospital, Daegu, Republic of Korea
- Department of Emergency Medicine, Catholic University of Daegu School of Medicine, Daegu, Republic of Korea
- Department of Emergency Medicine, Yeungnam University College of Medicine, Daegu, Republic of Korea
- Department of Emergency Medicine, Kyungpook National University Chilgok Hospital, Daegu, Republic of Korea
- Department of Emergency Medicine, Daegu Fatima Hospital, Daegu, Republic of Korea
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Greif R, Bhanji F, Bigham BL, Bray J, Breckwoldt J, Cheng A, Duff JP, Gilfoyle E, Hsieh MJ, Iwami T, Lauridsen KG, Lockey AS, Ma MHM, Monsieurs KG, Okamoto D, Pellegrino JL, Yeung J, Finn JC. Education, Implementation, and Teams: 2020 International Consensus on Cardiopulmonary Resuscitation and Emergency Cardiovascular Care Science With Treatment Recommendations. Circulation 2020; 142:S222-S283. [PMID: 33084395 DOI: 10.1161/cir.0000000000000896] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
For this 2020 International Consensus on Cardiopulmonary Resuscitation and Emergency Cardiovascular Care Science With Treatment Recommendations, the Education, Implementation, and Teams Task Force applied the population, intervention, comparator, outcome, study design, time frame format and performed 15 systematic reviews, applying the Grading of Recommendations, Assessment, Development, and Evaluation guidance. Furthermore, 4 scoping reviews and 7 evidence updates assessed any new evidence to determine if a change in any existing treatment recommendation was required. The topics covered included training for the treatment of opioid overdose; basic life support, including automated external defibrillator training; measuring implementation and performance in communities, and cardiac arrest centers; advanced life support training, including team and leadership training and rapid response teams; measuring cardiopulmonary resuscitation performance, feedback devices, and debriefing; and the use of social media to improve cardiopulmonary resuscitation application.
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11
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Greif R, Bhanji F, Bigham BL, Bray J, Breckwoldt J, Cheng A, Duff JP, Gilfoyle E, Hsieh MJ, Iwami T, Lauridsen KG, Lockey AS, Ma MHM, Monsieurs KG, Okamoto D, Pellegrino JL, Yeung J, Finn JC, Baldi E, Beck S, Beckers SK, Blewer AL, Boulton A, Cheng-Heng L, Yang CW, Coppola A, Dainty KN, Damjanovic D, Djärv T, Donoghue A, Georgiou M, Gunson I, Krob JL, Kuzovlev A, Ko YC, Leary M, Lin Y, Mancini ME, Matsuyama T, Navarro K, Nehme Z, Orkin AM, Pellis T, Pflanzl-Knizacek L, Pisapia L, Saviani M, Sawyer T, Scapigliati A, Schnaubelt S, Scholefield B, Semeraro F, Shammet S, Smyth MA, Ward A, Zace D. Education, Implementation, and Teams: 2020 International Consensus on Cardiopulmonary Resuscitation and Emergency Cardiovascular Care Science With Treatment Recommendations. Resuscitation 2020; 156:A188-A239. [PMID: 33098918 DOI: 10.1016/j.resuscitation.2020.09.014] [Citation(s) in RCA: 76] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
For this 2020 International Consensus on Cardiopulmonary Resuscitation and Emergency Cardiovascular Care Science With Treatment Recommendations, the Education, Implementation, and Teams Task Force applied the population, intervention, comparator, outcome, study design, time frame format and performed 15 systematic reviews, applying the Grading of Recommendations, Assessment, Development, and Evaluation guidance. Furthermore, 4 scoping reviews and 7 evidence updates assessed any new evidence to determine if a change in any existing treatment recommendation was required. The topics covered included training for the treatment of opioid overdose; basic life support, including automated external defibrillator training; measuring implementation and performance in communities, and cardiac arrest centers; advanced life support training, including team and leadership training and rapid response teams; measuring cardiopulmonary resuscitation performance, feedback devices, and debriefing; and the use of social media to improve cardiopulmonary resuscitation application.
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12
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Yoon JC, Kim YJ, Ahn S, Jin YH, Lee SW, Song KJ, Shin SD, Hwang SO, Kim WY. Factors for modifying the termination of resuscitation rule in out-of-hospital cardiac arrest. Am Heart J 2019; 213:73-80. [PMID: 31129440 DOI: 10.1016/j.ahj.2019.04.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Accepted: 04/03/2019] [Indexed: 10/26/2022]
Abstract
BACKGROUND False positive rate (FPR) of the current basic life support (BLS) termination of resuscitation (TOR) rule in out-of-hospital cardiac arrest (OHCA) patients (not witnessed; no return of spontaneous circulation prior to transport; and no shocks were delivered) has been ethically challenging. We validated the current BLS TOR rule with using nationwide Korean Cardiac Arrest Research Consortium (KoCARC) registry and identified the factors for modifying the rules. METHODS This prospective, multicenter, registry-based study was performed using the nontraumatic OHCA registry data between October 2015 and June 2017. Independent factors associated with poor neurologic outcome were identified to propose new KoCARC TOR rules by using multivariable analysis. The diagnostic performances of the TOR rules were calculated respectively. RESULTS Among 4,360 OHCA patients, 2,801 (64.2%) satisfied all 3 criteria of the BLS TOR rule. The FPR and positive predictive value of the BLS TOR rule were 5.9% and 99.3%. Asystole as initial rhythm and age > 60 years were found as new factors for modifying the TOR rule. New KoCARC TOR rules, combination of asystole and age > 60 years with current TOR rule, showed lower FPR (0.3%-2.1%) and higher positive predictive value (99.7%-99.9%) for predicting poor neurologic outcome at discharge. CONCLUSIONS In this recent nationwide cohort, the current BLS TOR rule showed high FPR (5.9%) for predicting poor neurologic outcome. We anticipate that our new KoCARC TOR rules, application of 2 new factors (asystole as initial rhythm and age > 60 years) with BLS TOR rule, could reduce unwarranted death.
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Lee DE, Lee MJ, Ahn JY, Ryoo HW, Park J, Kim WY, Shin SD, Hwang SO. New Termination-of-Resuscitation Models and Prognostication in Out-of-Hospital Cardiac Arrest Using Electrocardiogram Rhythms Documented in the Field and the Emergency Department. J Korean Med Sci 2019; 34:e134. [PMID: 31050224 PMCID: PMC6497980 DOI: 10.3346/jkms.2019.34.e134] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2019] [Accepted: 04/17/2019] [Indexed: 01/23/2023] Open
Abstract
BACKGROUND Electrocardiogram (ECG) rhythms, particularly shockable rhythms, are crucial for planning cardiac arrest treatment. There are varying opinions regarding treatment guidelines depending on ECG rhythm types and documentation times within pre-hospital settings or after hospital arrivals. We aimed to determine survival and neurologic outcomes based on ECG rhythm types and documentation times. METHODS This prospective observational study of 64 emergency medical centers was performed using non-traumatic out-of-hospital cardiac arrest registry data between October 2015 and June 2017. From among 4,608 adult participants, 4,219 patients with pre-hospital and hospital ECG rhythm data were enrolled. Patients were divided into 3 groups: those with initial-shockable, converted-shockable, and never-shockable rhythms. Patient characteristics and survival outcomes were compared between groups. Further, termination of resuscitation (TOR) validation was performed for 6 combinations of TOR criteria confirmed in previous studies, including 2 rules developed in the present study. RESULTS Total survival to discharge after cardiac arrest was 11.7%, and discharge with good neurologic outcomes was 7.9%. Survival to discharge rates and favorable neurologic outcome rates for the initial-shockable group were the highest at 35.3% and 30.2%, respectively. There were no differences in survival to discharge rates and favorable neurologic outcome rates between the converted-shockable (4.2% and 2.0%, respectively) and never-shockable groups (5.7% and 1.9%, respectively). Irrespective of rhythm changes before and after hospital arrival, TOR criteria inclusive of unwitnessed events, no pre-hospital return of spontaneous circulation, and asystole in the emergency department best predicted poor neurologic outcomes (area under the receiver operating characteristic curve of 0.911) with no patients classified as Cerebral Performance Category 1 or 2 (specificity = 1.000). CONCLUSION Survival outcomes and TOR predictions varied depending on ECG rhythm types and documentation times within pre-hospital filed or emergency department and should, in the future, be considered in treatment algorithms and prognostications of patients with out-of-hospital cardiac arrest. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT03222999.
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Affiliation(s)
- Dong Eun Lee
- Department of Emergency Medicine, Kyungpook National University Chilgok Hospital, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Mi Jin Lee
- Department of Emergency Medicine, Kyungpook National University Hospital, School of Medicine, Kyungpook National University, Daegu, Korea.
| | - Jae Yun Ahn
- Department of Emergency Medicine, Kyungpook National University Hospital, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Hyun Wook Ryoo
- Department of Emergency Medicine, Kyungpook National University Hospital, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Jungbae Park
- Department of Emergency Medicine, Kyungpook National University Hospital, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Won Young Kim
- Department of Emergency Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Sang Do Shin
- Department of Emergency Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Sung Oh Hwang
- Department of Emergency Medicine, Wonju Severance Christian Hospital, Wonju College of Medicine, Yonsei University, Wonju, Korea
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Shih HM, Chen YC, Chen CY, Huang FW, Chang SS, Yu SH, Wu SY, Chen WK. Derivation and Validation of the SWAP Score for Very Early Prediction of Neurologic Outcome in Patients With Out-of-Hospital Cardiac Arrest. Ann Emerg Med 2019; 73:578-588. [PMID: 30819521 DOI: 10.1016/j.annemergmed.2019.01.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 12/19/2018] [Accepted: 01/04/2019] [Indexed: 02/07/2023]
Abstract
STUDY OBJECTIVE For patients with out-of-hospital cardiac arrest who receive cardiopulmonary resuscitation in an emergency department (ED), the early evaluation of their neurologic prognosis is essential for emergency physicians. The aim of this study is to establish a simple and useful assessment tool for rapidly estimating the prognosis of patients with out-of-hospital cardiac arrest after their arrival at an ED. METHODS A total of 852 patients admitted from January 1, 2015, to June 30, 2017, were prospectively registered and enrolled in the derivation cohort. Multivariate logistic regression on this cohort identified 4 independent factors associated with unfavorable outcomes: initial nonshockable rhythm (odds ratio [OR] 3.40; 95% confidence interval [CI] 1.58 to 7.32), no witness of collapse (OR 3.19; 95% CI 1.51 to 6.75), older than 60 years (OR 3.65; 95% CI 1.64 to 8.09), and pH less than or equal to 7.00 (OR 3.27; 95% CI 1.42 to 7.54). The shockable rhythm-witness-age-pH (SWAP) score was developed and 1 point was assigned to each predictor. RESULTS For a SWAP score of 4, the specificity was 97.14% (95% CI 91.62% to 100%) for unfavorable outcomes in the derivation cohort. For validation, we retrospectively collected data for 859 patients with out-of-hospital cardiac arrest from January 1, 2012, to December 31, 2014. A SWAP score of 4 was 100% specific (95% CI 99.9% to 100%) for unfavorable outcomes in the validation cohort. CONCLUSION The SWAP score is a simple and useful predictive model that may provide information for the very early estimation of prognosis for patients with out-of-hospital cardiac arrest. Further research is required to integrate ultrasonographic findings and validate the SWAP score's application in other populations.
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Affiliation(s)
- Hong-Mo Shih
- Department of Emergency Medicine, China Medical University Hospital, Taichung City, Taiwan; School of Medicine, College of Medicine, China Medical University, Taichung City, Taiwan
| | - Yi-Chuan Chen
- Department of Emergency Medicine, Chang Gung Memorial Hospital, Chiayi, Puzi City, Taiwan; Department of Nursing, Chang Gung University of Science and Technology, Chiayi Campus, Puzi City, Taiwan
| | - Chih-Yu Chen
- Department of Emergency Medicine, China Medical University Hospital, Taichung City, Taiwan; School of Medicine, College of Medicine, China Medical University, Taichung City, Taiwan
| | - Fen-Wei Huang
- Emergency and Critical Care Foundation, Taipei, Taiwan
| | - Shih-Sheng Chang
- Division of Cardiovascular Medicine, Department of Internal Medicine, China Medical University Hospital, Taichung City, Taiwan; School of Medicine, College of Medicine, China Medical University, Taichung City, Taiwan
| | - Shao-Hua Yu
- Department of Emergency Medicine, China Medical University Hospital, Taichung City, Taiwan; School of Medicine, College of Medicine, China Medical University, Taichung City, Taiwan; Graduate Institute of Biomedical Sciences, China Medical University, Taichung City, Taiwan
| | - Shih-Yun Wu
- Department of Emergency Medicine, China Medical University Hospital, Taichung City, Taiwan; School of Medicine, College of Medicine, China Medical University, Taichung City, Taiwan
| | - Wei-Kung Chen
- Department of Emergency Medicine, China Medical University Hospital, Taichung City, Taiwan; School of Medicine, College of Medicine, China Medical University, Taichung City, Taiwan.
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Goto Y, Funada A, Maeda T, Okada H, Goto Y. Field termination-of-resuscitation rule for refractory out-of-hospital cardiac arrests in Japan. J Cardiol 2018; 73:240-246. [PMID: 30580892 DOI: 10.1016/j.jjcc.2018.12.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 11/30/2018] [Accepted: 12/08/2018] [Indexed: 11/18/2022]
Abstract
BACKGROUND Guidelines for cardiopulmonary resuscitation (CPR) recommend using the universal termination-of-resuscitation (TOR) rule to identify out-of-hospital cardiac arrest (OHCA) patients eligible for field termination of resuscitation, thus avoiding medically futile transportation to the hospital. However, in Japan, emergency medical services (EMS) personnel are forbidden from terminating CPR in the field and transport almost all patients with OHCA to hospitals. We aimed to develop and validate a novel TOR rule to identify patients eligible for field termination of CPR. METHODS We analyzed 540,478 patients with OHCA from 2011 to 2015 using a Japanese registry. Main outcome measures were specificity and positive predictive value (PPV) of the newly developed TOR rule in predicting 1-month mortality after OHCA. RESULTS Recursive partitioning analysis in the development group (n=434,208) showed that EMS personnel could consider TOR if patients with OHCA met all of the following five criteria: (1) initial asystole, (2) arrest unwitnessed by a bystander, (3) age ≥81 years, (4) no bystander-administered CPR or automated external defibrillator use before EMS arrival, and (5) no return of spontaneous circulation after EMS-initiated CPR for 14min. For patients meeting these criteria, specificity and PPV for predicting 1-month mortality were 99.2% [95% confidence interval (CI), 99.0-99.3%] and 99.7% (95% CI, 99.6-99.7%), respectively, for the development group and were 99.5% (95% CI, 99.3-99.7%) and 99.8% (95% CI, 99.7-99.9%), respectively, for the validation group. Implementation of this novel rule would reduce patient transports to hospitals by 10.6% in the development group and 10.4% in the validation group. CONCLUSIONS Having both high specificity and PPV of >99% for predicting 1-month mortality, our developed TOR rule may be applied in the field for Japanese patients with OHCA who meet all five criteria. Prospective validation studies and establishment of prehospital EMS protocol are required before implementing this rule.
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Affiliation(s)
- Yoshikazu Goto
- Department of Emergency and Critical Care Medicine, Kanazawa University Hospital, Kanazawa, Japan.
| | - Akira Funada
- Department of Emergency and Critical Care Medicine, Kanazawa University Hospital, Kanazawa, Japan
| | - Tetsuo Maeda
- Department of Emergency and Critical Care Medicine, Kanazawa University Hospital, Kanazawa, Japan
| | - Hirofumi Okada
- Department of Emergency and Critical Care Medicine, Kanazawa University Hospital, Kanazawa, Japan
| | - Yumiko Goto
- Department of Cardiology, Yawata Medical Center, Komatsu, Japan
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The prognostic significance of repeated prehospital shocks for out-of-hospital cardiac arrest survival. CAN J EMERG MED 2018; 21:330-338. [PMID: 30404678 DOI: 10.1017/cem.2018.437] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
OBJECTIVES Patients suffering from an out-of-hospital cardiac arrest (OHCA) associated with an initial shockable rhythm have a better prognosis than their counterparts. The implications of recurrent or refractory malignant arrhythmia in such context remain unclear. The objective of this study is to evaluate the association between the number of prehospital shocks delivered and survival to hospital discharge among patients in OHCA. METHODS This cohort study included adult patients with an initial shockable rhythm over a 5-year period from a registry of OHCA in Montreal, Canada. The relationship between the number of prehospital shocks delivered and survival to discharge was described using dynamic probabilities. The association between the number of prehospital shocks delivered and survival to discharge was assessed using multivariable logistic regression. RESULTS A total of 1,788 patients (78% male with a mean age of 64 years) were included in this analysis, of whom 536 (30%) received treatments from an advanced care paramedic. A third of the cohort (583 patients, 33%) survived to hospital discharge. The probability of survival was highest with the first shock (33% [95% confidence interval 30%-35%]), but decreased to 8% (95% confidence interval 4%-13%) following nine shocks. A higher number of prehospital shocks was independently associated with lower odds of survival (adjusted odds ratio=0.88 [95% confidence interval 0.85-0.92], p < 0.001). CONCLUSION Survival remains possible even after a high number of shocks for patients suffering from an OHCA with an initial shockable rhythm. However, requiring more shocks is independently associated with worse survival.
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Rzońca P, Gałązkowski R, Panczyk M, Gotlib J. Polish Helicopter Emergency Medical Service (HEMS) Response to Out-of-Hospital Cardiac Arrest (OHCA): A Retrospective Study. Med Sci Monit 2018; 24:6053-6058. [PMID: 30166502 PMCID: PMC6130224 DOI: 10.12659/msm.908962] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
BACKGROUND Out-of-hospital cardiac arrest (OHCA) is a significant clinical challenge for emergency medical systems worldwide. The first step towards ensuring patient survival is achieving return of spontaneous circulation (ROSC). The purpose of the study was to analyze the cases of OHCA to which HEMS teams were dispatched. MATERIAL AND METHODS We performed a retrospective analysis of all HEMS calls in Poland for cases of OHCA between 1 January 2011 and 31 December 2016. Data were obtained from medical records maintained by the Polish HEMS. RESULTS The total number of responses to cases of OHCA was 2447. Of this total, 308 cases were excluded from the study as the patient was found not to have cardiac arrest or was confirmed dead. ROSC was achieved in 1119 cases, including 335 cases where ROSC occurred before the arrival of the HEMS team. In the group studied, ROSC was achieved more commonly in women, in patients younger than age 40 years, in CA cases of cardiac origin, and in cases with shockable rhythms (p<0.05). CONCLUSIONS The study results are consistent with global trends in terms of OHCA incidence and the effectiveness of CPR performed on scene. The study also demonstrates that HEMS dispatch to OHCA cases is justified both as a means of providing assistance to EMS teams on scene and as the first choice.
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Affiliation(s)
- Patryk Rzońca
- Department of Emergency Medicine, Faculty of Health Sciences, Medical University of Lublin, Lublin, Poland
| | - Robert Gałązkowski
- Department of Emergency Medical Services, Faculty of Health Science, Medical University of Warsaw, Warsaw, Poland.,Polish Medical Air Rescue, Warsaw, Poland
| | - Mariusz Panczyk
- Division of Teaching and Outcomes of Education, Faculty of Health Science, Medical University of Warsaw, Warsaw, Poland
| | - Joanna Gotlib
- Division of Teaching and Outcomes of Education, aculty of Health Science, Medical University of Warsaw, Warsaw, Poland
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