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Ventilation practices and preparedness of healthcare providers in term newborn resuscitation: A comprehensive survey study in Austrian hospitals 新生儿期复苏中医护人员的通气方法和准备情况:奥地利医院综合调查研究
IF 2.1 Q3 CRITICAL CARE MEDICINE Pub Date : 2024-11-07 DOI: 10.1016/j.resplu.2024.100817
Eva M. Schwindt , Reinhold Stockenhuber , Jens Christian Schwindt

Aim of the study

Although neonatal resuscitation is rare, and high-risk births usually occur in specialised centres, unexpected resuscitation measures may be necessary during births that are initially considered low-risk. This survey assessed the practices of healthcare providers in Austrian hospitals for postnatal resuscitation and evaluated their self-assessed airway management skills for newborns.

Methods

An online survey was distributed to all staff members responsible for the postnatal care of newborns in hospitals with obstetrics in Austria through the heads of departments (paediatrics, obstetrics, and anaesthesiology). The results are presented in terms of hospital care level and birth volume.

Results

In total, 79.5 % of all hospitals with maternity units in Austria participated in the survey. Preparedness was found to be improved with the level of care provided by the hospital. Overall, 50.4 % of the respondents did not feel adequately prepared for neonatal emergencies, and 35.0 % rated their face mask ventilation skills as insufficient. According to the survey results in 61.3 % of included hospitals or 52.5 % of births in Austria, safe endotracheal intubation cannot be provided.

Conclusion

A significant proportion of healthcare workers in Austria responsible for postnatal newborn care do not feel adequately prepared for newborn emergencies.
研究目的虽然新生儿复苏很少见,而且高风险分娩通常发生在专业中心,但在最初被认为是低风险的分娩过程中,可能需要采取意想不到的复苏措施。这项调查评估了奥地利医院医护人员在产后复苏方面的做法,并对他们对新生儿气道管理技能的自我评估进行了评估。方法通过科室负责人(儿科、产科和麻醉科)向奥地利产科医院所有负责新生儿产后护理的工作人员发放了一份在线调查问卷。调查结果按医院护理水平和出生人数列出。调查发现,随着医院护理水平的提高,准备工作也有所改善。总体而言,50.4% 的受访者认为自己没有为新生儿紧急情况做好充分准备,35.0% 的受访者认为自己的面罩通气技能不足。根据调查结果,奥地利 61.3% 的医院或 52.5% 的新生儿无法进行安全的气管插管。
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引用次数: 0
Feasibility of real-time compression frequency and compression depth assessment in CPR using a “machine-learning” artificial intelligence tool 使用 "机器学习 "人工智能工具在心肺复苏术中实时评估按压频率和按压深度的可行性
IF 2.1 Q3 CRITICAL CARE MEDICINE Pub Date : 2024-11-05 DOI: 10.1016/j.resplu.2024.100825
Hannes Ecker , Niels-Benjamin Adams , Michael Schmitz , Wolfgang A. Wetsch

Background

Video assisted cardiopulmonary resuscitation (V-CPR) has demonstrated to be efficient in improving CPR quality and patient outcomes, as Emergency Medical Service (EMS) dispatchers can use the video stream of a caller for diagnostic purposes and give instructions in a CPR scenario. However, the new challenges faced by EMS dispatchers during video-guided CPR (V-CPR)—such as analyzing the video stream, providing feedback to the caller, and managing stress—demand innovative solutions. This study explores the feasibility of incorporating an open-source “machine-learning” tool (artificial intelligence – AI), to evaluate the feasibility and accuracy in correctly detecting the actual compression frequency and compression depth in video footage of a simulated CPR.

Design

MediaPipe Pose Landmark Detection (Google LLC, Mountain View, CA, USA), an open-source AI software using “machine-learning” models to detect human bodies in images and videos, was programmed to assess compression frequency an depth in nine videos, showing CPR on a resuscitation manikin. Compression frequency and depth were assessed from compression to compression with AI software and were compared to the manikin’s internal software (QCPR, Laerdal, Stavanger, Norway). After testing for Gaussian distribution, means of non-gaussian data were compared using Wilcoxon matched-pairs signed rank test and the Bland Altman method.

Main results

MediaPipe Pose Landmark Detection successfully identified and tracked the person performing CPR in all nine video sequences. There were high levels of agreement between compression frequencies derived from AI and manikin’s software. However, the precision of compression depth showed major inaccuracies and was overall not accurate.

Conclusions

This feasibility study demonstrates the potential of open-source “machine-learning” tools in providing real-time feedback on V-CPR video sequences. In this pilot study, an open-source landmark detection AI software was able to assess CPR compression frequency with high agreement to actual frequency derived from the CPR manikin. For compression depth, its performance was not accurate, suggesting the need for adjustment. Since the software used is currently not intended for medical use, further development is necessary before the technology can be evaluated in real CPR.
背景视频辅助心肺复苏(V-CPR)已被证明能有效提高心肺复苏的质量和患者的预后,因为紧急医疗服务(EMS)调度员可以利用呼叫者的视频流进行诊断,并在心肺复苏场景中进行指导。然而,紧急医疗服务调度员在视频指导心肺复苏术(V-CPR)过程中面临着新的挑战,如分析视频流、向呼叫者提供反馈以及管理压力等,这就需要创新的解决方案。本研究探讨了结合开源 "机器学习 "工具(人工智能)的可行性,以评估在模拟心肺复苏视频片段中正确检测实际压缩频率和压缩深度的可行性和准确性。设计媒体管道姿势地标检测(谷歌有限责任公司,美国加利福尼亚州山景城)是一款开源人工智能软件,使用 "机器学习 "模型来检测图像和视频中的人体。人工智能软件评估了从按压到按压的按压频率和深度,并与人体模型的内部软件(QCPR,Laerdal,挪威斯塔万格)进行了比较。在对高斯分布进行测试后,使用 Wilcoxon 配对符号秩检验和 Bland Altman 方法对非高斯数据的均值进行比较。人工智能和人体模型软件得出的压缩频率具有很高的一致性。结论这项可行性研究证明了开源 "机器学习 "工具在为 V-CPR 视频序列提供实时反馈方面的潜力。在这项试验性研究中,一款开源的地标检测人工智能软件能够评估心肺复苏的按压频率,并与心肺复苏模拟人的实际频率高度一致。但在压缩深度方面,该软件的表现并不准确,表明需要进行调整。由于所使用的软件目前尚未用于医疗用途,因此在对该技术进行实际心肺复苏评估之前,有必要对其进行进一步开发。
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引用次数: 0
Glucagon-like peptide-1 receptor agonist use is associated with reduced risk of out-of-hospital cardiac arrest in women with type 2 diabetes: A nationwide nested case-control study 使用胰高血糖素样肽-1 受体激动剂可降低 2 型糖尿病女性患者院外心脏骤停的风险:一项全国性巢式病例对照研究
IF 2.1 Q3 CRITICAL CARE MEDICINE Pub Date : 2024-11-05 DOI: 10.1016/j.resplu.2024.100821
Talip E. Eroglu , Ruben Coronel , Fredrik Folke , Gunnar Gislason

Objective

Glucagon-like peptide-1 receptor agonists (GLP-1 RAs) improve cardiovascular outcomes in patients with type 2 diabetes, but few studies have studied the risk of out-of-hospital cardiac arrest (OHCA). We investigated whether GLP-1 RA use reduce OHCA risk in type 2 diabetes when compared to dipeptidyl peptidase-4 inhibitor (DPP-4i) use.

Methods

We identified all patients having a redeemed prescription of a glucose-lowering drug between 1995 and 2019 and excluded patients with a first-time redeemed prescription consisting of insulin. Within this cohort, we nested a case-control population comprising all OHCA-cases from presumed cardiac causes between 2013 and 2019. OHCA-cases were matched 1:5 to non-OHCA controls of the same sex and age on the date of OHCA. The odds ratios (ORs) and corresponding 95% confidence intervals (95%-CIs) of OHCA were reported comparing GLP-1 RAs versus DPP-4is.

Results

We identified 3,618 OHCA-cases from presumed cardiac causes and matched them to 18,090 non-OHCA controls. GLP-1 RAs were used by 269 (7.44%) cases and 1297 (7.17%) controls, and conferred no increase in the overall odds of OHCA compared with DPP-4i use (OR:0.89, 95%-CI 0.74–1.07). However, stratification according to sex revealed that OHCA risk was significantly reduced in women (OR:0.59, 95%-CI 0.40–0.86) but not in men (OR:1.01, 95%-CI 0.82–1.26, P-value interaction:0.0093). The OR of OHCA did not vary significantly when stratifying for age, duration of diabetes, chronic kidney disease, or presence of cardiovascular disease.

Conclusion

Our findings indicate that GLP-1 RA use is not associated with a reduced risk of OHCA in Danish individuals with type 2 diabetes when compared to DPP-4is.
目的胰高血糖素样肽-1 受体激动剂(GLP-1 RA)可改善 2 型糖尿病患者的心血管预后,但很少有研究探讨院外心脏骤停(OHCA)的风险。我们研究了与使用二肽基肽酶-4 抑制剂(DPP-4i)相比,使用 GLP-1 RA 是否会降低 2 型糖尿病患者的 OHCA 风险。在这一队列中,我们嵌套了一个病例对照人群,该人群包括 2013 年至 2019 年间所有推测为心脏原因导致的 OHCA 病例。OHCA病例与OHCA发生当日相同性别和年龄的非OHCA对照组进行1:5配对。报告了 GLP-1 RAs 与 DPP-4is 相比的 OHCA 的几率比(ORs)和相应的 95% 置信区间(95%-CIs)。269例(7.44%)病例和1297例(7.17%)对照者使用了GLP-1 RAs,与使用DPP-4i相比,OHCA的总几率没有增加(OR:0.89, 95%-CI 0.74-1.07)。然而,根据性别进行分层后发现,女性的 OHCA 风险显著降低(OR:0.59,95%-CI 0.40-0.86),而男性则没有显著降低(OR:1.01,95%-CI 0.82-1.26,P 值交互作用:0.0093)。结论我们的研究结果表明,与 DPP-4is 相比,在丹麦 2 型糖尿病患者中使用 GLP-1 RA 与降低 OHCA 风险无关。
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引用次数: 0
Impact of video-assisted neonatal resuscitation on newborns and resuscitators: A feasibility study 视频辅助新生儿复苏对新生儿和复苏者的影响:可行性研究
IF 2.1 Q3 CRITICAL CARE MEDICINE Pub Date : 2024-11-02 DOI: 10.1016/j.resplu.2024.100811
Hiroki Otsuka , Eiji Hirakawa , Asataro Yara , Daisuke Saito , Takuya Tokuhisa

Aim

High-risk deliveries are still common due to the increased use of assisted reproductive technologies. In Japan, despite centralization of labor, about half of all deliveries are still carried out in obstetric clinics. Telemedicine support is important for neonatal resuscitation involving urgent, life-altering professional judgment in local deliveries. This feasibility study examined the effects of using medical communication software on the quality of neonatal resuscitation, and the physiological parameters of the newborn and stress of the resuscitators.

Methods

This observational study included cesarean births with ≥ 36 weeks gestational age at Kagoshima City Hospital between January 1, 2023 and 2024. A camera on the neonatal resuscitation table allowed a neonatologist to observe the resuscitation through a medical communication software and give instructions to the resuscitators. The midwife performing the resuscitation wore a communication microphone to interact with the neonatologist. Details of the neonatal resuscitation procedures, newborn physical findings, and neonatal intensive care unit (NICU) admission rates were collected from medical records. A midwife questionnaire was also administered. The primary endpoints were resuscitation findings, and the secondary endpoint was resuscitator stress before and after implementing the software.

Results

The intervention had no major adverse effects and no change in NICU admission rates; however, there were increases in post-resuscitation temperature and suctioning frequency. While the intervention caused stress to the resuscitators, it also contributed to an increased sense of security and learning.

Conclusion

Telemedicine support in neonatal resuscitation can be introduced without significant adverse effects.
目的由于辅助生殖技术的使用越来越多,高危分娩仍然很常见。在日本,尽管实行了集中分娩,但仍有大约一半的分娩是在产科诊所进行的。在本地分娩中,远程医疗支持对于新生儿复苏非常重要,因为这涉及到紧急的、改变生命的专业判断。这项可行性研究探讨了使用医疗通信软件对新生儿复苏质量、新生儿生理参数和复苏人员压力的影响。方法这项观察性研究包括 2023 年 1 月 1 日至 2024 年 1 月 1 日期间鹿儿岛市立医院胎龄≥36 周的剖宫产产妇。新生儿复苏台上装有摄像头,新生儿科医生可通过医疗通信软件观察复苏过程,并向复苏人员发出指示。进行复苏的助产士佩戴着通讯麦克风,与新生儿科医生进行互动。从医疗记录中收集了新生儿复苏程序、新生儿身体检查结果和新生儿重症监护室入院率的详细信息。此外,还进行了助产士问卷调查。主要终点是复苏结果,次要终点是实施软件前后复苏人员的压力。结果干预没有产生重大不良影响,新生儿重症监护室的入院率也没有变化;但是,复苏后体温和吸痰频率有所增加。结论在新生儿复苏中引入远程医疗支持不会产生明显的不良影响。
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引用次数: 0
Association of white blood cell count with one-year mortality after cardiac arrest 白细胞计数与心脏骤停后一年死亡率的关系
IF 2.1 Q3 CRITICAL CARE MEDICINE Pub Date : 2024-11-02 DOI: 10.1016/j.resplu.2024.100816
Asser M.J. Seppä , Markus B. Skrifvars , Heidi Vuopio , Rahul Raj , Matti Reinikainen , Pirkka T. Pekkarinen

Introduction

Post-resuscitation care of cardiac arrest patients may be complicated by systemic inflammation elicited in response to whole-body ischaemia–reperfusion injury. We assessed the association between early WBC with one-year mortality in a large, unselected population of cardiac arrest patients.

Methods

We collected a retrospective multicentre cohort of ICU-treated CA patients from the Finnish national ICU registry. We used locally estimated scatterplot smoothing (LOESS) curve to assess the association between the most abnormal WBC of the first 24 h in the ICU with the likelihood of death within a year. Multivariable logistic regression analyses were performed to assess the independent association between WBC and one-year mortality. In nested cohort analysis, we tested the association of delay from collapse to return of spontaneous circulation (ROSC) with WBC in linear regression models.

Results

The LOESS curve was U-shaped, with the lowest predicted mortality at 7.5 109/L WBC. Based on this cut-off value, patients were divided into high (≥ 7.5 109/L) and low (< 7.5 109/L) WBC groups. In 4229 patients with high WBC, higher WBC was independently associated with increased one-year mortality (adjusted odds ratio (OR) 1.03 per 109/L, 95 % confidence interval (CI) 1.02–1.04, p < 0.001). In 776 patients with low WBC, lower WBC was independently associated with increased one-year mortality (adjusted OR 0.88 per 109/L, 95 % CI 0.80–0.96, p < 0.001). In a nested cohort analysis, longer ROSC-delay was associated with higher WBC in patients with a shockable rhythm (β = 0.10, R2 = 0.04, p < 0.001).

Conclusions

In this large retrospective cohort, WBC was independently associated with one-year mortality after CA. Mortality was lowest in patients with WBC close to the upper limit of the normal reference range. Although WBC is not useful for outcome prognostication in individual patients, our results support the concept of excess inflammation being a harmful component of the post-cardiac arrest syndrome.
导言 心脏骤停患者复苏后的护理可能会因全身缺血再灌注损伤引起的全身炎症而变得复杂。我们评估了大量未经筛选的心脏骤停患者中早期白细胞与一年死亡率之间的关系。我们使用局部估计散点图平滑(LOESS)曲线来评估重症监护室头 24 小时白细胞最异常与一年内死亡可能性之间的关联。为评估白细胞与一年内死亡率之间的独立关联,进行了多变量逻辑回归分析。在嵌套队列分析中,我们在线性回归模型中检验了从昏迷到恢复自主循环(ROSC)的延迟与白细胞的关系。结果LOESS曲线呈U形,白细胞为7.5 109/L 时预测死亡率最低。根据这一临界值,患者被分为高白细胞组(≥ 7.5 109/L)和低白细胞组(< 7.5 109/L)。在 4229 例高白细胞患者中,白细胞越高,一年死亡率越高(调整后的几率比(OR)为 1.03 per 109/L,95 % 置信区间(CI)为 1.02-1.04,p < 0.001)。在 776 例白细胞较低的患者中,白细胞较低与一年期死亡率的增加独立相关(调整后 OR 为 0.88 per 109/L,95 % 置信区间 (CI) 为 0.80-0.96,p <0.001)。结论在这一大型回顾性队列中,WBC 与 CA 后的一年死亡率密切相关。白细胞接近正常参考范围上限的患者死亡率最低。虽然白细胞对个别患者的预后没有帮助,但我们的结果支持了炎症过多是心脏骤停后综合征的有害因素这一概念。
{"title":"Association of white blood cell count with one-year mortality after cardiac arrest","authors":"Asser M.J. Seppä ,&nbsp;Markus B. Skrifvars ,&nbsp;Heidi Vuopio ,&nbsp;Rahul Raj ,&nbsp;Matti Reinikainen ,&nbsp;Pirkka T. Pekkarinen","doi":"10.1016/j.resplu.2024.100816","DOIUrl":"10.1016/j.resplu.2024.100816","url":null,"abstract":"<div><h3>Introduction</h3><div>Post-resuscitation care of cardiac arrest patients may be complicated by systemic inflammation elicited in response to whole-body ischaemia–reperfusion injury. We assessed the association between early WBC with one-year mortality in a large, unselected population of cardiac arrest patients.</div></div><div><h3>Methods</h3><div>We collected a retrospective multicentre cohort of ICU-treated CA patients from the Finnish national ICU registry. We used locally estimated scatterplot smoothing (LOESS) curve to assess the association between the most abnormal WBC of the first 24 h in the ICU with the likelihood of death within a year. Multivariable logistic regression analyses were performed to assess the independent association between WBC and one-year mortality. In nested cohort analysis, we tested the association of delay from collapse to return of spontaneous circulation (ROSC) with WBC in linear regression models.</div></div><div><h3>Results</h3><div>The LOESS curve was U-shaped, with the lowest predicted mortality at 7.5 10<sup>9</sup>/L WBC. Based on this cut-off value, patients were divided into high (≥ 7.5 10<sup>9</sup>/L) and low (&lt; 7.5 10<sup>9</sup>/L) WBC groups. In 4229 patients with high WBC, higher WBC was independently associated with increased one-year mortality (adjusted odds ratio (OR) 1.03 per 10<sup>9</sup>/L, 95 % confidence interval (CI) 1.02–1.04, p &lt; 0.001). In 776 patients with low WBC, lower WBC was independently associated with increased one-year mortality (adjusted OR 0.88 per 10<sup>9</sup>/L, 95 % CI 0.80–0.96, p &lt; 0.001). In a nested cohort analysis, longer ROSC-delay was associated with higher WBC in patients with a shockable rhythm (β = 0.10, R<sup>2</sup> = 0.04, p &lt; 0.001).</div></div><div><h3>Conclusions</h3><div>In this large retrospective cohort, WBC was independently associated with one-year mortality after CA. Mortality was lowest in patients with WBC close to the upper limit of the normal reference range. Although WBC is not useful for outcome prognostication in individual patients, our results support the concept of excess inflammation being a harmful component of the post-cardiac arrest syndrome.</div></div>","PeriodicalId":94192,"journal":{"name":"Resuscitation plus","volume":"20 ","pages":"Article 100816"},"PeriodicalIF":2.1,"publicationDate":"2024-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142578625","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Spatio-temporal distribution, prediction and relationship of three major acute cardiovascular events: Out-of-hospital cardiac arrest, ST-elevation myocardial infarction and stroke 三种主要急性心血管事件的时空分布、预测和关系:院外心脏骤停、ST 段抬高心肌梗死和中风
IF 2.1 Q3 CRITICAL CARE MEDICINE Pub Date : 2024-10-30 DOI: 10.1016/j.resplu.2024.100810
Angelo Auricchio , Tommaso Scquizzato , Federico Ravenda , Ruggero Cresta , Stefano Peluso , Maria Luce Caputo , Stefano Tonazzi , Claudio Benvenuti , Antonietta Mira

Background

Predicting the incidence of time-sensitive cardiovascular diseases like out-of-hospital cardiac arrest (OHCA), ST-elevation myocardial infarction (STEMI), and stroke can reduce time to treatment and improve outcomes. This study analysed the spatio-temporal distribution of OHCAs, STEMIs, and strokes, their spatio-temporal correlation, and the performance of different prediction algorithms.

Methods

Adults who experienced an OHCA, STEMI, or stroke in Canton Ticino, Switzerland from 2005 to 2022 were included. Datasets were divided into training and validation samples. To estimate and predict the yearly per-capita population incidences of OHCA, STEMI, and stroke, the integrated nested Laplace approximation (INLA), machine learning meta model (MLMM), the Naïve prediction method, and the exponential moving average were employed and compared. The relationship between OHCA, STEMI, and stroke was assessed by predicting the incidence of one condition, considering the lagged incidence of the other two as explanatory variables.

Results

We included 3,906 OHCAs, 2,162 STEMIs, and 2,536 stroke patients. INLA and MLMM yearly predicted incidence OHCA, STEMI, and stroke at municipality level with very high accuracy, outperforming the Naïve forecasting and the exponential moving average. INLA exhibited errors of zero or one event in 82%, 87%, and 72% of municipalities for OHCA, STEMI, and stroke, respectively, whereas ML had errors in 81%, 89%, and 71% of municipalities for the same conditions. INLA had a prediction error of 0.87, 0.77, and 1.50 events per year per municipality for OHCA, STEMI and stroke, whereas MLMM of 0.70, 0.74, and 1.09 events, respectively. Including in the INLA model the lagged absolute values of the other conditions as covariates improved the prediction of OHCA and stroke but not STEMI. MLMM predictions were consistently the most accurate and did not benefit from the inclusion of the other conditions as covariates. All the three diseases showed a similar spatial pattern.

Conclusions

Prediction of incidence of OHCA, STEMI, and stroke is possible with very high accuracy using INLA and MLMM models. A robust spatio-temporal correlation between the 3 pathologies exists. Widespread implementation in clinical practice of prediction algorithms may allow to improve resource allocation, reduce treatment delays, and improve outcomes.
背景预测院外心脏骤停(OHCA)、ST段抬高型心肌梗死(STEMI)和脑卒中等时间敏感性心血管疾病的发病率可缩短治疗时间并改善预后。本研究分析了院外心脏骤停、STEMI 和中风的时空分布、它们的时空相关性以及不同预测算法的性能。数据集分为训练样本和验证样本。为了估算和预测每年OHCA、STEMI和中风的人均发病率,我们采用了集成嵌套拉普拉斯近似法(INLA)、机器学习元模型(MLMM)、奈夫预测法和指数移动平均法,并进行了比较。结果我们纳入了 3906 例 OHCA、2162 例 STEMI 和 2536 例中风患者。INLA 和 MLMM 以极高的准确率预测了市级的 OHCA、STEMI 和中风发病率,优于 Naïve 预测和指数移动平均法。在 OHCA、STEMI 和中风方面,INLA 分别在 82%、87% 和 72% 的城市中显示出误差为零或一个事件,而 ML 在相同情况下分别在 81%、89% 和 71% 的城市中显示出误差。INLA 对 OHCA、STEMI 和中风的预测误差分别为每个城市每年 0.87、0.77 和 1.50 例,而 MLMM 分别为 0.70、0.74 和 1.09 例。在 INLA 模型中加入其他病症的滞后绝对值作为协变量,可以改善对 OHCA 和中风的预测,但不能改善对 STEMI 的预测。MLMM 预测一直是最准确的,并没有从将其他病症作为协变量中获益。结论使用 INLA 和 MLMM 模型可以非常准确地预测 OHCA、STEMI 和中风的发病率。这三种病症之间存在着稳健的时空相关性。在临床实践中广泛应用预测算法可以改善资源分配、减少治疗延迟并改善预后。
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引用次数: 0
Evaluation of fatigue, load and the quality of chest compressions by bystanders in hot and humid environments 对湿热环境中旁观者胸外按压的疲劳、负荷和质量进行评估
IF 2.1 Q3 CRITICAL CARE MEDICINE Pub Date : 2024-10-30 DOI: 10.1016/j.resplu.2024.100818
Haruka Takahashi , Kensuke Suzuki , Yohei Okada , Satoshi Harada , Hiroyuki Yokota , Marcus Eng Hock Ong , Satoo Ogawa

Background

This study aimed to investigate the physiological load on bystanders during cardiopulmonary resuscitation (CPR) and the quality of chest compressions in hot and humid environments.

Methods

This prospective experimental study compared the physical load and quality of chest compressions among healthy volunteers who performed 10 min chest compression in a climate chamber under normal conditions (for Tokyo) (Wet Bulb Globe Temperature [WBGT] 21 °C) and hot and humid conditions (WBGT 31 °C). The primary outcome was the depth of chest compressions over a 10-minute period. Secondary outcomes included the volunteer’s heart rate (HR), core body temperature (BT), Borg scale for assessing fatigue, and blood lactate levels. Data were analyzed using two-way repeated measures analysis of variance (ANOVA) and paired t-tests.

Results

Out of 31 participants, 29 participants (mean [SD] age: 21[0.7], male: 21 [70.5 %]) were included in the analysis. For WBGT 21 °C and 31 °C, the mean chest compression depth at 10 min was not statistically difference (the depth of chest compression: 52.2 mm and 51.5 mm (p = 0.52)). At 10 min, heart rate and core temperature were 126 vs. 143 bpm, and 37.4℃ vs. 37.5℃ for WBGT 21℃ vs. WBGT 31℃ (mean differences: 17 bpm [95 % CI: 7.7–26.3], 0.1℃ [95 % CI: −0.1–0.3]). At the end, Borg scale was 16 vs. 18 and lactate levels were 3.9 vs. 5.1 mmol/L (mean differences: 2 [95 % CI: 1–3], 1.2 mmol/L [95 % CI: 0.1–2.3]).

Conclusion

there was no significant difference in the depth of chest compression of paramedic students under the conditions between WBGT 31℃ and WBGT 21℃. For secondary outcomes, the lactate and fatigue of bystanders increased under WBGT 31℃ compared to WBGT 21℃. Further research is needed on CPR in hot and humid environments.
这项前瞻性实验研究比较了在正常条件(东京)(湿球温度 [WBGT] 21 °C)和湿热条件(WBGT 31 °C)下,健康志愿者在气候箱中进行 10 分钟胸外按压时的生理负荷和胸外按压的质量。主要结果是 10 分钟内胸外按压的深度。次要结果包括志愿者的心率(HR)、核心体温(BT)、用于评估疲劳的博格量表以及血液乳酸水平。采用双向重复测量方差分析(ANOVA)和配对 t 检验对数据进行了分析。WBGT 21 °C 和 31 °C 时,10 分钟的平均胸外按压深度没有统计学差异(胸外按压深度:52.2 mm 和 51.5 mm (p = 0.52))。10 分钟时,WBGT 21℃ 与 WBGT 31℃ 的心率和核心温度分别为 126 bpm 与 143 bpm,37.4℃ 与 37.5℃(平均差异:17 bpm [95 % CI:7.7-26.3],0.1℃ [95 % CI:-0.1-0.3])。结论:在 WBGT 31℃和 WBGT 21℃条件下,护理专业学生的胸外按压深度没有显著差异。在次要结果方面,与 WBGT 21℃相比,WBGT 31℃条件下旁观者的乳酸和疲劳程度有所增加。在湿热环境中进行心肺复苏还需要进一步研究。
{"title":"Evaluation of fatigue, load and the quality of chest compressions by bystanders in hot and humid environments","authors":"Haruka Takahashi ,&nbsp;Kensuke Suzuki ,&nbsp;Yohei Okada ,&nbsp;Satoshi Harada ,&nbsp;Hiroyuki Yokota ,&nbsp;Marcus Eng Hock Ong ,&nbsp;Satoo Ogawa","doi":"10.1016/j.resplu.2024.100818","DOIUrl":"10.1016/j.resplu.2024.100818","url":null,"abstract":"<div><h3>Background</h3><div>This study aimed to investigate the physiological load on bystanders during cardiopulmonary resuscitation (CPR) and the quality of chest compressions in hot and humid environments.</div></div><div><h3>Methods</h3><div>This prospective experimental study compared the physical load and quality of chest compressions among healthy volunteers who performed 10 min chest compression in a climate chamber under normal conditions (for Tokyo) (Wet Bulb Globe Temperature [WBGT] 21 °C) and hot and humid conditions (WBGT 31 °C). The primary outcome was the depth of chest compressions over a 10-minute period. Secondary outcomes included the volunteer’s heart rate (HR), core body temperature (BT), Borg scale for assessing fatigue, and blood lactate levels. Data were analyzed using two-way repeated measures analysis of variance (ANOVA) and paired t-tests.</div></div><div><h3>Results</h3><div>Out of 31 participants, 29 participants (mean [SD] age: 21[0.7], male: 21 [70.5 %]) were included in the analysis. For WBGT 21 °C and 31 °C, the mean chest compression depth at 10 min was not statistically difference (the depth of chest compression: 52.2 mm and 51.5 mm (p = 0.52)). At 10 min, heart rate and core temperature were 126 vs. 143 bpm, and 37.4℃ vs. 37.5℃ for WBGT 21℃ vs. WBGT 31℃ (mean differences: 17 bpm [95 % CI: 7.7–26.3], 0.1℃ [95 % CI: −0.1–0.3]). At the end, Borg scale was 16 vs. 18 and lactate levels were 3.9 vs. 5.1 mmol/L (mean differences: 2 [95 % CI: 1–3], 1.2 mmol/L [95 % CI: 0.1–2.3]).</div></div><div><h3>Conclusion</h3><div>there was no significant difference in the depth of chest compression of paramedic students under the conditions between WBGT 31℃ and WBGT 21℃. For secondary outcomes, the lactate and fatigue of bystanders increased under WBGT 31℃ compared to WBGT 21℃. Further research is needed on CPR in hot and humid environments.</div></div>","PeriodicalId":94192,"journal":{"name":"Resuscitation plus","volume":"20 ","pages":"Article 100818"},"PeriodicalIF":2.1,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142552864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mirror, mirror, on the wall, who’s the fairest of them all? 墙上的镜子,镜子,谁最美?
IF 2.1 Q3 CRITICAL CARE MEDICINE Pub Date : 2024-10-29 DOI: 10.1016/j.resplu.2024.100812
Uri Adrian Prync Flato , Ricardo Ferreira Mendes de Oliveira , Lucas Kallas-Silva , Maria Fernanda Dias Azevedo
{"title":"Mirror, mirror, on the wall, who’s the fairest of them all?","authors":"Uri Adrian Prync Flato ,&nbsp;Ricardo Ferreira Mendes de Oliveira ,&nbsp;Lucas Kallas-Silva ,&nbsp;Maria Fernanda Dias Azevedo","doi":"10.1016/j.resplu.2024.100812","DOIUrl":"10.1016/j.resplu.2024.100812","url":null,"abstract":"","PeriodicalId":94192,"journal":{"name":"Resuscitation plus","volume":"20 ","pages":"Article 100812"},"PeriodicalIF":2.1,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142552866","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Influence of rescuer position and arm angle on chest compression quality: An international multicentric randomized crossover simulation trial 施救者位置和手臂角度对胸外按压质量的影响:国际多中心随机交叉模拟试验
IF 2.1 Q3 CRITICAL CARE MEDICINE Pub Date : 2024-10-29 DOI: 10.1016/j.resplu.2024.100815
Abel Nicolau , Ingrid Bispo , Marc Lazarovici , Christoffer Ericsson , Pedro Sa-Couto , Inês Jorge , Pedro Vieira-Marques , Carla Sa-Couto

Background

Success in resuscitation depends not only on the timeliness of the maneuvers but also on the quality of chest compressions. Factors such as the rescuer position and arm angle can significantly impact compression quality.

Aim

This study explores the influence of rescuer positioning and arm angle on the quality of chest compressions among healthcare professionals experienced in cardiopulmonary resuscitation.

Methods

In this international, multicentric, randomized crossover simulation trial with independent groups, healthcare professionals were assigned to one of four positions: kneeling on the floor, standing, standing on a step stool, and kneeling on the bed. Participants performed two 3-minute trials of uninterrupted chest compressions at arm angles of 90° and 105°. Compression quality was assessed, using manikin derived data.

Results

A total of 76 participants entered the study. Those using a 90° arm angle exhibited higher compression scores than those at a 105° angle. Rescuers standing on a step stool maintained higher scores over time when compared to other groups. In contrast, rescuers kneeling on the bed consistently scored below 75% throughout the trial, with particularly low scores at the 105° angle.

Conclusion

Rescuer position and arm angle significantly influence CPR quality, with a 90° arm angle and elevated positioning optimizing compression depth and effectiveness. The results recommend against kneeling on the bed due to its negative impact on chest compression quality.
背景复苏的成功不仅取决于操作的及时性,还取决于胸外按压的质量。方法在这项国际性、多中心、随机交叉模拟试验中,医护人员被分配到四种姿势之一:跪在地上、站立、站在阶梯凳上和跪在床上。参与者以 90° 和 105° 的手臂角度进行了两次 3 分钟的不间断胸外按压试验。使用人体模型得出的数据对按压质量进行了评估。与 105° 角度的参与者相比,90° 角度的参与者的按压得分更高。与其他组别相比,站在阶梯凳上的救援人员随着时间的推移得分更高。相比之下,跪在床上的施救者在整个试验过程中的得分始终低于 75%,尤其是 105° 角的施救者得分更低。结果建议不要跪在床上,因为这会对胸外按压质量产生负面影响。
{"title":"Influence of rescuer position and arm angle on chest compression quality: An international multicentric randomized crossover simulation trial","authors":"Abel Nicolau ,&nbsp;Ingrid Bispo ,&nbsp;Marc Lazarovici ,&nbsp;Christoffer Ericsson ,&nbsp;Pedro Sa-Couto ,&nbsp;Inês Jorge ,&nbsp;Pedro Vieira-Marques ,&nbsp;Carla Sa-Couto","doi":"10.1016/j.resplu.2024.100815","DOIUrl":"10.1016/j.resplu.2024.100815","url":null,"abstract":"<div><h3>Background</h3><div>Success in resuscitation depends not only on the timeliness of the maneuvers but also on the quality of chest compressions. Factors such as the rescuer position and arm angle can significantly impact compression quality.</div></div><div><h3>Aim</h3><div>This study explores the influence of rescuer positioning and arm angle on the quality of chest compressions among healthcare professionals experienced in cardiopulmonary resuscitation.</div></div><div><h3>Methods</h3><div>In this international, multicentric, randomized crossover simulation trial with independent groups, healthcare professionals were assigned to one of four positions: kneeling on the floor, standing, standing on a step stool, and kneeling on the bed. Participants performed two 3-minute trials of uninterrupted chest compressions at arm angles of 90° and 105°. Compression quality was assessed, using manikin derived data.</div></div><div><h3>Results</h3><div>A total of 76 participants entered the study. Those using a 90° arm angle exhibited higher compression scores than those at a 105° angle. Rescuers standing on a step stool maintained higher scores over time when compared to other groups. In contrast, rescuers kneeling on the bed consistently scored below 75% throughout the trial, with particularly low scores at the 105° angle.</div></div><div><h3>Conclusion</h3><div>Rescuer position and arm angle significantly influence CPR quality, with a 90° arm angle and elevated positioning optimizing compression depth and effectiveness. The results recommend against kneeling on the bed due to its negative impact on chest compression quality.</div></div>","PeriodicalId":94192,"journal":{"name":"Resuscitation plus","volume":"20 ","pages":"Article 100815"},"PeriodicalIF":2.1,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142552865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Impact of endotracheal intubation versus laryngeal tube on gasometry and lactate at emergency department admission after out-of-hospital cardiac arrest 院外心脏骤停后急诊科入院时气管插管与喉管插管对气体测量和乳酸的影响
IF 2.1 Q3 CRITICAL CARE MEDICINE Pub Date : 2024-10-28 DOI: 10.1016/j.resplu.2024.100813
Olaf Aretz , Jana Vienna Rödler , Athina Gavriil , Marc Deussen , Emmanuel Chorianopoulos , Sebastian Bergrath

Aim

Guidelines recommend supraglottic airways (e.g. laryngeal tube, LT) for out-of-hospital cardiac arrest (OHCA) if providers are not skilled in endotracheal intubation (ETI). In prolonged cardiopulmonary resuscitation (CPR) LT led to asphyxial physiology. Therefore we evaluated the impact of LT vs. ETI on gasometry and lactate at admission.

Methods

All patients from 1 January 2020 to 30 April 2023 with return of spontaneous circulation (ROSC) or ongoing CPR (no ROSC) were included in this retrospective cohort study.
Continuous data were analysed using the Mann-Whitney-U-Test.

Results

Overall, 147 patients were included: ETI, n = 104; LT, n = 33; other airways, n = 10. ROSC, n = 86; no ROSC, n = 61. ETI vs. LT (median) for all patients showed: arterial blood gas analyses (BGA) (n = 62 vs. n = 20): pH 7.01 vs. 7.07, p = 0.83; pCO2 64.5 vs. 66.6 mmHg, p = 0.62; lactate 10.1 vs. 9.5 mmol/l, p = 0.68. Venous BGA (n = 37 vs. n = 11): pH 6.91 vs. 7.12, p = 0.15; pCO2 77.4 vs. 66.0 mmHg, p = 0.19; lactate 11.5 vs. 8.6 mmol/l, p = 0.24. ROSC, arterial BGA (n = 39 vs. n = 12): pH 7.09 vs. 7.14, p = 0.36; pCO2 60.3 vs. 56.4 mmHg, p = 0.84; lactate 8.95 vs. 7.0 mmol/l, p = 0.35. No ROSC, arterial BGA (n = 23 vs. n = 8): pH 6.9 vs. 6.8, p = 0.03; pCO2 80.7 vs. 85.6 mmHg, p = 0.64; lactate 13.0 vs. 14.6 mmol/l, p = 0.62.

Conclusion

The prehospital airway strategy had no impact on gasometry in this OHCA collective except a better pH with ETI in no ROSC. Due to small numbers and non-existent data about the exact prehospital ventilation parameters, further prospective studies are needed to evaluate this question.
如果医护人员不熟练气管插管 (ETI),《指南》建议对院外心脏骤停 (OHCA) 采用声门上气道(如喉导管,LT)。在长时间的心肺复苏(CPR)中,喉管插管会导致窒息生理。这项回顾性队列研究纳入了 2020 年 1 月 1 日至 2023 年 4 月 30 日期间自发循环恢复(ROSC)或正在进行心肺复苏(无 ROSC)的所有患者:ETI,104 人;LT,33 人;其他气道,10 人。ROSC:86人;无ROSC:61人。所有患者的 ETI 与 LT(中位数)对比显示:动脉血气分析(BGA)(n = 62 vs. n = 20):pH 7.01 vs. 7.07,p = 0.83;pCO2 64.5 vs. 66.6 mmHg,p = 0.62;乳酸 10.1 vs. 9.5 mmol/l,p = 0.68。静脉 BGA(n = 37 vs. n = 11):pH 6.91 vs. 7.12,p = 0.15;pCO2 77.4 vs. 66.0 mmHg,p = 0.19;乳酸 11.5 vs. 8.6 mmol/l,p = 0.24。ROSC,动脉 BGA(n = 39 vs. n = 12):pH 7.09 vs. 7.14,p = 0.36;pCO2 60.3 vs. 56.4 mmHg,p = 0.84;乳酸 8.95 vs. 7.0 mmol/l,p = 0.35。无 ROSC,动脉 BGA(n = 23 vs. n = 8):pH 6.9 vs. 6.8,p = 0.03;pCO2 80.7 vs. 85.6 mmHg,p = 0.64;乳酸 13.0 vs. 14.6 mmol/l,p = 0.62。由于院前通气参数的确切数据较少且不存在,因此需要进一步的前瞻性研究来评估这一问题。
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引用次数: 0
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Resuscitation plus
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