Hong Kong Journal of Emergency Medicine最新文献

{"title":"Telemedicine communication using instant messaging technology improves pre-hospital triage in high mountain train disasters","authors":"Chia-Hsi Chen, Tak-Yee Wong, Hsiu-Chun Chen, Jui-Fang Huang, Chung-jing Wang","doi":"10.1177/1024907920966530","DOIUrl":"https://doi.org/10.1177/1024907920966530","url":null,"abstract":"Background: Differences between pre-hospital triage by an emergency medical technician and Simple Triage and Rapid Treatment triage (START) by emergency staffs often affect manpower management and aggravate the chaos condition of emergency room. Objectives: Under the assistance of instant messaging, the authors aimed to identify ways of improving triage differences between emergency medical technician triage grading and Simple Triage and Rapid Treatment triage grading by emergency staffs. Methods: Recorded photographs of all patients were reviewed by a smartphone. We categorized patients according to three triage conditions: group 1, accident scene on-site or instantaneous Simple Triage and Rapid Treatment triage by the emergency medical technician; group 2, triage under Simple Triage and Rapid Treatment grading by emergency staffs; group 3, re-triage with START grading using recorded photographs, Glasgow Coma Scale, and vital signs when these patients were arrived in emergency room. The Wilcoxon Signed-Rank test, Spearman rank correlations, and Kruskal–Wallis test are employed to test differences among the groups. We used risk estimates with odds ratios and the chi-square test to statistically analyze the differences in triage grading. Results: Statistical analysis found conflicting results among Wilcoxon Signed-Rank test, Spearman rank correlations, and Kruskal–Wallis test. The difference in triage grading between groups 2 and 1 was greater than that between groups 2 and 3 (odds ratio, 6.473; 95% confidence interval, 1.693–24.470; p-value < 0.05). Conclusion: Transferred photographs combined with Glasgow Coma Scale and vital signs can help us to understand the real situations of patients. With instant messaging applications, it is possible to make more precise pre-hospital or instantaneous triage.","PeriodicalId":50401,"journal":{"name":"Hong Kong Journal of Emergency Medicine","volume":"29 1","pages":"51 - 55"},"PeriodicalIF":0.6,"publicationDate":"2020-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/1024907920966530","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48143829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Strategies for prevention of SARS-CoV-2 infection in a rural Emergency Department","authors":"M. Monti, P. D. L’Angiocola, R. Marchetti, F. Paciullo, F. Borgognoni","doi":"10.1177/1024907920965851","DOIUrl":"https://doi.org/10.1177/1024907920965851","url":null,"abstract":"Attribution-NonCommercial 4.0 License (http://www.creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage). https://doi.org/10.1177/1024907920965851 Hong Kong Journal of Emergency Medicine 2021, Vol. 28(2) 114–116 © The Author(s) 2020 Article reuse guidelines: sagepub.com/journals-permissions DOI: 10.1177/1024907920965851 journals.sagepub.com/home/hkj","PeriodicalId":50401,"journal":{"name":"Hong Kong Journal of Emergency Medicine","volume":"28 1","pages":"114 - 116"},"PeriodicalIF":0.6,"publicationDate":"2020-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/1024907920965851","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44085447","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact of aerosol enclosure barrier to videolaryngoscopic oro-tracheal intubation: A pilot manikin study","authors":"Chun-fai. Hui, Alex Li, C. Wong","doi":"10.1177/1024907920965309","DOIUrl":"https://doi.org/10.1177/1024907920965309","url":null,"abstract":"Background: Personal protective equipment used for protection of healthcare workers in the combat against Severe Acute Respiratory Syndrome Coronavirus 2 pandemic is in limited supply worldwide at present – 2020. Use of barrier enclosure during endotracheal intubation can potentially act as a cost-effective adjunct to minimize risks of transmitting the infection to healthcare workers. However, there is concern that the enclosure itself will act as a barrier to the intubation procedure in the emergency settings. Objective: To evaluate the negative effect of barrier enclosure (an aerosol box) on the performance of video-assisted intubation in a manikin Methods: A total of 41 Emergency Department doctors from a local hospital were recruited to perform intubation in a manikin simulating normal and more difficult airways (Cormack-Lehane grades I and IIb) with and without the box. The primary outcome was time of successful intubation. The secondary outcomes were first-attempt success rate, number of successful attempts, need of adjuncts, dental injury and ease of intubation as perceived by the participants. Results: The aerosol box had no significant negative effect on the time of successful intubation (p = 0.630 (Grade I airway) and p = 0.436 (Grade IIb airway)), first-attempt success rate, number of successful attempts, need of adjuncts or dental injury. Participants subjectively reported extra yet minor challenges during intubation in the presence of the box. Conclusion: Within limits of the pilot study, the aerosol box had no statistical significant difference but an increasing trend of prolonged endotracheal intubation interval in the Grade IIb airway and negative impact on first-pass success, and could potentially be used to protect healthcare workers during the aerosol-generating intubation procedure.","PeriodicalId":50401,"journal":{"name":"Hong Kong Journal of Emergency Medicine","volume":"28 1","pages":"3 - 7"},"PeriodicalIF":0.6,"publicationDate":"2020-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/1024907920965309","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48408843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Single-day and cumulative effects of ambient particulate matter exposure on emergency department visits for respiratory disease in South Korea","authors":"Hakjung Kim, Woosung Yu","doi":"10.1177/1024907920965305","DOIUrl":"https://doi.org/10.1177/1024907920965305","url":null,"abstract":"Background: Along with the industrialization, the air pollutants have gained more attention and studies especially about respiratory diseases were conducted. Emergency visit reflects acute aggravation of disease rather than chronic exacerbation. Objectives: The objective of this study was to evaluate the relationship between the ambient particulate matter and the emergency visits with respiratory disease in South Korea. Methods: Patients diagnosed with respiratory disease in the emergency department in 2018 were enrolled. The data of meteorological factors and air pollutants between 4 December 2017 and 31 December 2018 were acquired. Poisson regression was used with daily emergency visits as the response variable and single-day particulate matter concentration as the explanatory variable. Results: A total of 4207 patients were enrolled. In Poisson regression analysis of all respiratory diseases, the effects of P M 10 and P M 2 . 5 were strongest at day before 8 and 26. Age older than 65 group and chronic respiratory disease group had earlier lag effect than the all-diseases group. Cumulative effect was peaked at 14 lag day. The split point of prediction was 87 µg/m3 before 3 days for P M 10 and 37 µg/m3 before 8 days for P M 2 . 5 . Conclusion: The results can be used to predict the increase of emergency visits and need for medical resources when the ambient particulate matter concentration rises.","PeriodicalId":50401,"journal":{"name":"Hong Kong Journal of Emergency Medicine","volume":"29 1","pages":"17 - 23"},"PeriodicalIF":0.6,"publicationDate":"2020-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/1024907920965305","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44584914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An extremely rare phenomenon: Angina bullosa hemorrhagica","authors":"M. Demir, Ilter Ağaçkiran","doi":"10.1177/1024907920964811","DOIUrl":"https://doi.org/10.1177/1024907920964811","url":null,"abstract":"Introduction: Angina bullosa hemorrhagica is a disease without a concomitant hematological or vesiculobullous disorder characterized by painless hemorrhagic bullae in the oral mucosa; it is rarely seen and has a good course. Case presentation: A 45-year-old female patient was admitted to the emergency department with a painless hemorrhagic bulla that suddenly appeared on the soft palate. A blister, 2 cm in diameter and dark red in color, was seen extending from the hard palate’s posterior to the soft palate. Nasolaryngoscopic evaluation was performed, and no additional hemorrhagic bulla was detected. She was discharged with the recommendation of oral mouthwash. Discussion: Solitary hemorrhagic bulla, suddenly occurring on the soft palate, is diagnostic for angina bullosa hemorrhagica. Some authors have reported that blisters in the posterior pharynx may progress to acute upper airway obstruction. Conclusion: Early nasolaryngoscopic evaluation in angina bullosa hemorrhagica is an excellent option to be considered by the emergency physician to prevent life-threatening situations.","PeriodicalId":50401,"journal":{"name":"Hong Kong Journal of Emergency Medicine","volume":"30 1","pages":"5S - 8S"},"PeriodicalIF":0.6,"publicationDate":"2020-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/1024907920964811","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45020102","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Return of spontaneous circulation in patients with out-of-hospital cardiac arrest caused by pulmonary embolism using early point-of-care ultrasound and timely thrombolytic agent application: Two case reports","authors":"S. Pyo, G. Park, Sang Chul Kim, Hoon Kim, Suk-Woo Lee, Ji Han Lee","doi":"10.1177/1024907920964136","DOIUrl":"https://doi.org/10.1177/1024907920964136","url":null,"abstract":"Introduction: Acute pulmonary embolism is a confirmed cause of up to 5% of out-of-hospital cardiac arrest and 5%–13% of unexplained cardiac arrest in patients. However, the true incidence may be much higher, as pulmonary embolism is often clinically underdiagnosed. Thrombolytic therapy is a recognized therapy for pulmonary embolism–associated cardiac arrest but is not routinely recommended during cardiopulmonary resuscitation. Therefore, clinicians should attempt to identify patients with suspected pulmonary embolism. Many point-of care ultrasound protocols suggest diagnosis of pulmonary embolism for cardiac arrest patients. Case presentation: We describe two male patients (60 years and 66 years, respectively) who presented to the emergency department with cardiac arrest within a period of 1 week. With administration of point-of care ultrasound during the ongoing cardiopulmonary resuscitation in both patients, fibrinolytic therapy was initiated under suspicion of cardiac arrest caused by pulmonary embolism. Both patients had return of spontaneous circulation; however, only the second patient, who received fibrinolytic therapy relatively early, was discharged with a good outcome. In this report, we discussed how to diagnose and manage patients with cardiac arrest–associated pulmonary embolism with the help of point-of care ultrasound. We also discuss the different clinical outcomes of the two patients based on the experience of the clinicians and the timing of thrombolytic agent application. Conclusions: If acute pulmonary embolism is suspected in patients with out-of-hospital cardiac arrest, we recommend prompt point-of care ultrasound examination. Point-of care ultrasound may help identify patients with pulmonary embolism during cardiopulmonary resuscitation, leading to immediate treatment, although the clinical outcomes may vary.","PeriodicalId":50401,"journal":{"name":"Hong Kong Journal of Emergency Medicine","volume":"30 1","pages":"31S - 38S"},"PeriodicalIF":0.6,"publicationDate":"2020-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/1024907920964136","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48395398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Association between the frequency of admission for pneumonia and the incidence of in-hospital cardiac arrest: A population-based case–control study","authors":"Yu-Rung Hsu, I. Tsai, Wei-Kung Chen, Kuan-Ho Lin","doi":"10.1177/1024907920964091","DOIUrl":"https://doi.org/10.1177/1024907920964091","url":null,"abstract":"Objective: To examine the association between the frequency of admission for pneumonia and the incidence of in-hospital cardiac arrest. Methods: We enrolled 1739 patients with in-hospital cardiac arrest and 6956 randomly selected age- and sex-matched control patients using a longitudinal claims sub-dataset from 1996 to 2011 for 1 million people randomly selected from the population covered by the Taiwan National Health Insurance program. The odds ratio of in-hospital cardiac arrest associated with the number of hospital admissions for pneumonia was calculated. Results: During the 15-year study period, the in-hospital cardiac arrest group had a higher frequency (28.4% vs 8.1%, p < 0.0001) of admission for pneumonia compared to the control group. The comorbidities of heart failure, chronic pulmonary disease, diabetes, renal failure, liver disease, lymphoma, alcohol abuse, and drug abuse were higher in the in-hospital cardiac arrest group than in the control group. In addition, the risk of in-hospital cardiac arrest was 3.37 for the patients admitted for pneumonia, and the risk of in-hospital cardiac arrest increased for patients with multiple admissions for pneumonia (once, 3.03; two times, 3.44; and three times, 4.42). In cross-analysis, the more admissions for pneumonia and the greater the number of comorbidities, the higher the risk of in-hospital cardiac arrest (odds ratio = 21.37, 95% confidence interval = 13.6–33.9 for patients with more than three admissions for pneumonia and more than three comorbidities). Conclusion: Higher admission frequency for pneumonia was associated with a higher risk of in-hospital cardiac arrest. Awareness of this risk factor may help clinicians provide early prevention or detection for patients with potential in-hospital cardiac arrest risks immediately after admission.","PeriodicalId":50401,"journal":{"name":"Hong Kong Journal of Emergency Medicine","volume":"30 1","pages":"146 - 151"},"PeriodicalIF":0.6,"publicationDate":"2020-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/1024907920964091","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41540235","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Timing of inducing therapeutic hypothermia in patients successfully resuscitated after out-of-hospital cardiac arrest","authors":"Doo-Youp Kim, J. Park, Sun Hak Lee, J. Choe, Jinhee Ahn, H. Lee, Jun-Hyok Oh, J. Choi, H. Lee, K. Cha, T. Hong","doi":"10.1177/1024907920958566","DOIUrl":"https://doi.org/10.1177/1024907920958566","url":null,"abstract":"Background: Therapeutic hypothermia can improve neurological status in cardiac arrest survivors. Objectives: We investigated the association between the timing of inducing therapeutic hypothermia and neurological outcomes in patients who experienced out-of-hospital cardiac arrest. Methods: We evaluated data from 116 patients who were comatose after return of spontaneous circulation and those who received therapeutic hypothermia between January 2013 and April 2017. The primary endpoint was good neurological outcomes during index hospitalization, defined as a cerebral performance category score of 1 or 2. Therapeutic hypothermia timing was defined as the duration from the return of spontaneous circulation to hypothermia initiation. We analyzed the effect of early hypothermia induction on neurological results. Results: In total, 112 patients were enrolled. The median duration to hypothermia initiation was 284 min (25th–75th percentile, 171–418 min). Eighty-two (69.5%) patients underwent hypothermia within 6 h, and 30 (25.4%) had good neurological outcomes. The rates of good neurological outcomes by hypothermia initiation time quartile (shortest to longest) were 28.3%, 34.5%, 14.8%, and 28.6% (p = 0.401). The good neurologic outcomes did not differ between hypothermia patients within 6 h or after (26.5% vs 26.7%, p = 0.986). Short low-flow time and bystander resuscitation were associated with good neurological outcomes (p = 0.044, confidence interval: 0.027–0.955), but the timing of hypothermia initiation was not (p = 0.602, confidence interval: 0.622–1.317). Conclusion: A shorter low-flow time was associated with good neurological outcomes in out-of-hospital cardiac arrest patients who experienced hypothermia. However, inducing hypothermia sooner, even within 6 h, did not improve the neurological outcomes. Thus, as current guidelines recommend, initiating hypothermia within 6 h of recovery of spontaneous circulation is reasonable.","PeriodicalId":50401,"journal":{"name":"Hong Kong Journal of Emergency Medicine","volume":"28 1","pages":"43 - 50"},"PeriodicalIF":0.6,"publicationDate":"2020-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/1024907920958566","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46553059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"History of anticoagulant and antiplatelet therapy as a predictive factor for transfusion requirement in elderly trauma patients in intensive care: A retrospective registry–based cohort analysis","authors":"Se Heon Kim, Y. Sul, Jin Young Lee, J. Ye, Jin Suk Lee, Hong Rye Kim, S. Yoon, Joong Suck Kim","doi":"10.1177/1024907920961271","DOIUrl":"https://doi.org/10.1177/1024907920961271","url":null,"abstract":"Introduction: With increased life expectancy, the proportion of elderly trauma admissions has increased. Elderly patients frequently have underlying diseases necessitating anticoagulant/antiplatelet medication, which worsens coagulopathy. We ascertained the relationship between preinjury anticoagulants/antiplatelet medication use and transfusion requirements in patients older than 65 years. Methods: This retrospective study enrolled patients admitted to the trauma intensive care unit of Chungbuk National University Hospital during January 2016 to June 2019. Data on medication history, clinical features, and component transfusions were analyzed with the chi-square test, independent t-test, one-way analysis of variance, and analysis of covariance. Results: Overall, 142 and 324 (overall 466) patients did and did not receive anticoagulant/antiplatelet medication, respectively. Falls were more frequent (p < 0.001) in the medicated group (n = 36; 25.4% vs n = 25; 7.7%). Head and neck injuries were more frequent among patients in the medicated group (58.5% vs 46.6%, p = 0.02), and they had a lower Injury Severity Score (ISS; 18.2 vs 20.2, p = 0.03), with no difference in serum hemoglobin level and coagulation function. The non-medicated group received more red blood cell transfusions within 4 h of arrival (2.24 vs 1.42 units, p = 0.03). Post hoc analysis revealed differences in red blood cell transfusions within 4 h of arrival between the non-medicated and warfarin groups (2.24 vs 0.33 units). Patients with head and neck injuries received less red blood cells than patients with other injuries (head and neck 1.07; chest and abdomen 2.73; pelvic and extremity 3.34 units, p < 0.001). On linear regression analysis, the Injury Severity Score and Glasgow Coma Scale score influenced the transfusion volume. Multivariate analysis controlled for Injury Severity Score, Glasgow Coma Scale score, and main injury site showed no intergroup differences in transfusion requirements. Conclusion: Preinjury anticoagulant/antiplatelet medication use was not significantly associated with transfusion amounts in patients older than 65 years.","PeriodicalId":50401,"journal":{"name":"Hong Kong Journal of Emergency Medicine","volume":"28 1","pages":"104 - 113"},"PeriodicalIF":0.6,"publicationDate":"2020-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/1024907920961271","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48798400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparison of cardiopulmonary resuscitation that applied synchronous 30 compressions–2 ventilations with that applied asynchronous 110/min compression–10/min ventilation: A mannequin study","authors":"Kadir Küçükceran, M. Ayranci, Z. D. Dündar","doi":"10.1177/1024907920958861","DOIUrl":"https://doi.org/10.1177/1024907920958861","url":null,"abstract":"Background: CPR model of a resuscitation to be ventilated with a bag valve mask constitutes a discussion when evaluated with the current guidance. Objective: This study aims to compare the synchronous (30–2) ventilation–compression method with asynchronous 110/min compression–10/min ventilation in cardiac arrests where an advanced airway management is not applied and where ventilation is provided by a bag valve mask on a mannequin. Methods: This simulation trial was performed using two clinical cardiopulmonary resuscitation scenarios: an asynchronous scenario with 10 ventilations per minute asynchronously when compression is applied as 110 compression per minute and a synchronous scenario in which 30 compressions:2 ventilations were performed synchronously. A total of 100 people in 50 groups applied these two scenarios on mannequin. Ventilation and compression data of both scenarios were recorded. Results: Evaluating the compression criteria in both the scenarios performed by 50 groups in total, in terms of all criteria except compression fraction, there was no statistically difference between the two scenarios (p > 0.05). Compression fraction values in the asynchronous scenario were found to be statistically significantly higher than the synchronous scenario (96.02 ± 2.35, 81.34 ± 4.42, p < 0.001). Evaluating the ventilation criteria in both the scenarios performed by 50 groups in total; there was a statistically significant difference in all criteria. Mean ventilation rate of the asynchronous scenario was statistically higher than the synchronous scenario (7.22 ± 2.42, 5.08 ± 0.75, p < 0.001). Mean ventilation volume of the synchronous scenario was statistically higher than the asynchronous scenario (353.24 ± 45.46, 527.40 ± 96.60, p < 0.001). Ventilation ratio in sufficient volume of the synchronous scenario was statistically higher than the asynchronous scenario (36.84 ± 14.47, 75.00 ± 21.24, p < 0.001). Ventilation ratio below the minimum volume limit of the asynchronous scenario was statistically higher than the synchronous scenario (62.48 ± 14.72, 17.86 ± 19.50, p < 0.001). Conclusion: In our study, we concluded that the cardiopulmonary resuscitation applied by the synchronous method reached better ventilation volumes. Evaluating together with any interruption in compression, comprehensive studies are needed to reveal which patients would benefit from this result.","PeriodicalId":50401,"journal":{"name":"Hong Kong Journal of Emergency Medicine","volume":"30 1","pages":"139 - 145"},"PeriodicalIF":0.6,"publicationDate":"2020-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/1024907920958861","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47038878","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}