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Effect of introduction of a rapid response system and increasing Medical Emergency Team (MET) activity on mortality over a 20-year period in a paediatric specialist hospital 一家儿科专科医院在 20 年内引入快速反应系统和增加医疗急救队活动对死亡率的影响
IF 2.1 Q3 CRITICAL CARE MEDICINE Pub Date : 2024-11-16 DOI: 10.1016/j.resplu.2024.100823
Jason Acworth , Connor Ryan , Elliott Acworth , Syeda Farah Zahir

Background

Rapid Response Systems are hospital-wide patient-focused systems aiming to improve recognition of acute deterioration in patients and trigger a rapid response aimed at preventing potentially avoidable adverse events such as cardiac arrest and death. In 1994, the Royal Children’s Hospital in Brisbane, Australia, was one of the first institutions to adopt a paediatric rapid response system (RRS). The purpose of this study was to investigate the impacts of both introduction of a paediatric RRS and increasing RRS activations (MET dose) on hospital mortality.

Methods

Prospectively collected data from institutional databases at a specialist paediatric hospital was used to determine hospital mortality rate pre- and post- implementation of the RRS. An interrupted time series model using segmented regression was utilised to assess the pre-intervention trend, as well as immediate and sustained effects of RRS implementation on hospital mortality. Univariate linear regression examined potential effects of MET dose on mortality.

Results

Hospital mortality rate did not change significantly over 15 years before RRS implementation. In the first year after implementation, mortality rate fell significantly (−1.4; 95 %CI −2.27 to −0.52; p = 0.0027). For each year that passed after the intervention, there was no significant change in hospital mortality rate (Estimate: −0.08; 95 %CI −0.17 to 0.02; p = 0.11). Univariate linear regression modelling showed that with every unit increase in MET Dose, hospital mortality rate decreased by −0.13 (95 % CI: −0.27 to 0; p = 0.05).

Conclusions

Utilising data from one of the earliest and longest duration single-centre cohort of paediatric MET events, this study reaffirms the association between implementation of a paediatric RRS and decreased hospital mortality. The study also provides novel evidence of the impact of MET dose on patient outcome in the paediatric population. It is recommended that factors influencing the benefit of rapid response systems in paediatric populations are further identified so that this life saving initiative can be optimised.
背景快速反应系统是一种以病人为中心的全院系统,旨在提高对病人急性病情恶化的识别能力,并触发快速反应,以防止可能避免的不良事件,如心脏骤停和死亡。1994 年,澳大利亚布里斯班皇家儿童医院成为首批采用儿科快速反应系统(RRS)的机构之一。本研究的目的是调查引入儿科快速反应系统和增加快速反应系统启动次数(MET 剂量)对医院死亡率的影响。研究方法通过从一家儿科专科医院的机构数据库中收集的数据,确定实施快速反应系统前后的医院死亡率。采用分段回归的间断时间序列模型来评估干预前的趋势,以及实施 RRS 对医院死亡率的直接和持续影响。单变量线性回归检验了 MET 剂量对死亡率的潜在影响。实施 RRS 后的第一年,死亡率明显下降(-1.4;95 %CI -2.27 至 -0.52;p = 0.0027)。干预后每过一年,住院死亡率都没有明显变化(估计值:-0.08;95 %CI -0.17 至 0.02;p = 0.11)。单变量线性回归模型显示,MET 剂量每增加一个单位,住院死亡率就会下降 -0.13 (95 % CI: -0.27 to 0; p = 0.05)。结论利用最早、持续时间最长的儿科 MET 事件单中心队列的数据,本研究再次证实了儿科 RRS 的实施与住院死亡率下降之间的关系。这项研究还提供了新的证据,证明了 MET 剂量对儿科患者预后的影响。建议进一步确定影响快速反应系统在儿科人群中的益处的因素,以便优化这一挽救生命的举措。
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引用次数: 0
Prehospital ventilation strategies in out-of-hospital cardiac arrest: A protocol for a randomized controlled trial (PIVOT trial) 院外心脏骤停患者的院前通气策略:随机对照试验(PIVOT 试验)方案
IF 2.1 Q3 CRITICAL CARE MEDICINE Pub Date : 2024-11-16 DOI: 10.1016/j.resplu.2024.100827
Cheng-Yi Fan , Sih-Shiang Huang , Chi-Hsin Chen , Chih-Wei Sung , Chin-Hao Chang , Tung-Hsiu Hung , Yen-Chen Liu , Edward Pei-Chuan Huang

Aims

The PIVOT trial evaluates the clinical outcomes and ventilatory quality of an automatic pneumatic ventilation method compared to a bag-valve-mask ventilation method in patients who have experienced out-of-hospital cardiac arrest and have had an advanced airway placed.

Methods

The PIVOT trial is a pragmatic, open-label, multicenter randomized controlled trial. It aims to recruit 514 patients in Hsinchu County, Taiwan. Adult, non-trauma patients who experience out-of-hospital cardiac arrest, are treated by emergency medical services, and have an advanced airway in place will be randomized. Biweekly cluster randomization will assign EMS teams to either the automatic pneumatic ventilation group or the bag-valve-mask group. Informed consent is waived. The primary outcome is the return of spontaneous circulation, either prehospital or in-hospital. Secondary outcomes include survival to discharge, neurological outcomes, prehospital ventilatory quality, and the content of prehospital resuscitation. Participants will be followed until they pass away or are discharged from the hospital.

Conclusion

The PIVOT trial will provide new insight on the clinical effectiveness of automatic pneumatic ventilation in patients experienced out-of-hospital cardiac arrest.
Trial number: NCT06067204 in clinicaltrial.gov
目的 PIVOT 试验评估了自动气动通气方法与袋-阀-面罩通气方法相比,对经历院外心脏骤停并放置了高级气道的患者的临床效果和通气质量。该试验旨在招募台湾新竹县的 514 名患者。院外心脏骤停、接受急诊治疗且已安置高级气道的非外伤成年患者将被随机分配。每两周进行一次分组随机,将急救小组分配到自动气动通气组或气囊-阀门-面罩组。无需知情同意。主要结果是院前或院内自主循环的恢复。次要结果包括出院后存活率、神经系统结果、院前通气质量和院前复苏内容。结论PIVOT试验将为院外心脏骤停患者自动气动通气的临床效果提供新的见解:NCT06067204 in clinicaltrial.gov
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引用次数: 0
Cardiopulmonary resuscitation in obese patients: A scoping review 肥胖患者的心肺复苏:范围审查
IF 2.1 Q3 CRITICAL CARE MEDICINE Pub Date : 2024-11-15 DOI: 10.1016/j.resplu.2024.100820
Julie Considine , Keith Couper , Robert Greif , Gene Yong-Kwang Ong , Michael A. Smyth , Kee Chong Ng , Tracy Kidd , Theresa Mariero Olasveengen , Janet Bray , on behalf of the International Liaison Committee on Resuscitation (ILCOR) Basic Life Support (BLS), Advanced Life Support (ALS), Paediatric Life Support (PLS), and Education, Implementation, Teams (EIT) Task Forces

Background

Given the increasing global prevalence of obesity, the International Liaison Committee on Resuscitation (ILCOR) commissioned this scoping review to explore current evidence underpinning treatment and outcomes of obese patients (adult and children) in cardiac arrest.

Methods

This scoping review, conducted using Arksey and O’Malley’s framework and reported according to PRISMA-ScR guidelines, included studies of CPR in obese patients. ‘Obese’ was defined according to each individual study. Medline, EMBASE and Cochrane were searched from inception to 1 October 2024. Narrative synthesis was guided by Synthesis Without Meta-Analysis (SWiM) reporting guidelines.

Results

36 studies were included: 2 paediatric and 34 adult studies. Fourteen studies reported on out-of-hospital cardiac arrest (OHCA), 12 on in-hospital cardiac arrest (IHCA), eight on both OHCA and IHCA: cardiac arrest location was not reported in two studies. The most common outcomes were survival (n = 29), neurological outcome (n = 17) and ROSC (n = 7). In adults there were variable results in neurological outcome, survival to hospital discharge, longer term survival (months to years), and ROSC. In children, there were two studies suggesting that obese children had worse neurological outcomes, lower survival and lower ROSC than normal weight children. Few studies reported resuscitation quality indicators or techniques, and no studies reported adjustments to CPR techniques.

Conclusion

The variability in results does not suggest an urgent need to deviate from standard CPR protocols, however there was some evidence that CPR duration may be longer in obese adults, which may have staffing and resource implications.
背景鉴于肥胖症在全球的发病率越来越高,国际复苏联络委员会(ILCOR)委托进行了这项范围界定综述,以探讨当前对心脏骤停的肥胖患者(成人和儿童)的治疗和结果所依据的证据。方法这项范围界定综述采用 Arksey 和 O'Malley 的框架进行,并根据 PRISMA-ScR 指南进行报告,包括对肥胖患者进行心肺复苏的研究。肥胖 "的定义取决于每项研究。对 Medline、EMBASE 和 Cochrane 进行了检索,检索时间从开始到 2024 年 10 月 1 日。叙述性综述以无 Meta 分析综述 (SWiM) 报告指南为指导:共纳入 36 项研究:2 项儿科研究和 34 项成人研究。14 项研究报告了院外心脏骤停 (OHCA),12 项研究报告了院内心脏骤停 (IHCA),8 项研究报告了 OHCA 和 IHCA:2 项研究未报告心脏骤停的地点。最常见的结果是存活(29 例)、神经系统结果(17 例)和 ROSC(7 例)。成人的神经系统结果、出院存活率、长期存活率(数月至数年)和 ROSC 的结果各不相同。在儿童方面,有两项研究表明,与体重正常的儿童相比,肥胖儿童的神经功能预后更差,存活率更低,ROSC 更低。很少有研究报告了复苏质量指标或技术,也没有研究报告对心肺复苏技术进行了调整。结论结果的差异并不表明急需偏离标准心肺复苏方案,但有证据表明肥胖成人的心肺复苏持续时间可能更长,这可能会对人员和资源产生影响。
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引用次数: 0
Effect of chest compressions in addition to extracorporeal life support on carotid flow in an experimental model of refractory cardiac arrest in pigs 在猪难治性心脏骤停实验模型中,除体外生命支持外,胸外按压对颈动脉血流的影响
IF 2.1 Q3 CRITICAL CARE MEDICINE Pub Date : 2024-11-09 DOI: 10.1016/j.resplu.2024.100826
Sergey Gurevich , Rajat Kalra , Marinos Kosmopoulos , Alexandra M Marquez , Deborah Jaeger , Mitchell Bemenderfer , Danielle Burroughs , Jason A Bartos , Demetris Yannopoulos , Sebastian Voicu

Background

Extracorporeal life support (ECLS) provides organ perfusion in refractory cardiac arrest but during the initiation of ECLS mean arterial pressure (MAP) and carotid flow may be suboptimal due to hypotension and/or insufficient flow. We hypothesized that cardiopulmonary resuscitation (CPR) in addition to ECLS may increase carotid flow and MAP compared to ECLS alone.

Methods

Observational pilot study comparing hemodynamic parameters before and after CPR cessation in pigs supported by ECLS for experimental refractory cardiac arrest. Pigs were anesthetized, ventricular fibrillation was induced for 3 min, automated CPR performed for 30 min, ECLS was initiated then CPR stopped.
Variables averaged over 3 s were compared between the last 3 s of CPR + ECLS and 3, 6, 30 s, and 5 and 10 min of ECLS alone. Data are expressed as medians (25–75 interquartile range) and compared using paired samples Wilcoxon test.

Results

Nine pigs were included, ECLS was initiated at 2.7 (2.3–2.8) L/min. MAP during CPR + ECLS was 56(53.0–59.2) mmHg, versus 50(45–57)mmHg, 52(46–59)mmHg, 61(50–63)mmHg, 57 (54–66)mmHg, 54 (47–58)mmHg of ECLS alone, p = 0.50, 0.61, 0.70, 0.44, 0.73 respectively. Carotid flow was 113(78–119) ml/min during CPR + ECLS versus 99(79–110)ml/min, 100(81–110)ml/min, 96(60–122)ml/min, 118 (101–130)ml/min, 124 (110–141)ml/min, p = 0.41, 0.52, 0.73, 0.33, 0.20 respectively. When ECLS was initiated at lower flow, 1.5 L/min (one pig), MAP decreased from 59 to 45 mmHg, and carotid flow from 78.2 to 32.5 ml/min after 3 s of ECLS alone.

Conclusion

Stopping CPR after effective ECLS initiation does not decrease MAP or carotid flow. Future studies may evaluate augmenting low flow ECLS with CPR.
背景体外生命支持(ECLS)可为难治性心脏骤停患者提供器官灌注,但在启动 ECLS 期间,平均动脉压(MAP)和颈动脉血流可能会因低血压和/或血流不足而达不到最佳状态。我们假设,与单独使用 ECLS 相比,在使用 ECLS 的同时使用心肺复苏术(CPR)可能会增加颈动脉血流量和 MAP。对猪进行麻醉,诱导室颤 3 分钟,自动心肺复苏 30 分钟,启动 ECLS,然后停止心肺复苏。比较心肺复苏 + ECLS 最后 3 秒钟与单独 ECLS 的 3、6、30 秒钟以及 5 和 10 分钟之间 3 秒钟的平均变量。数据以中位数(25-75 四分位数间距)表示,并使用配对样本 Wilcoxon 检验进行比较。心肺复苏+ECLS时的血压为56(53.0-59.2)毫米汞柱,而单独使用ECLS时分别为50(45-57)毫米汞柱、52(46-59)毫米汞柱、61(50-63)毫米汞柱、57(54-66)毫米汞柱、54(47-58)毫米汞柱,P分别为0.50、0.61、0.70、0.44、0.73。心肺复苏+ECLS时的颈动脉血流量为113(78-119)毫升/分钟,而单用ECLS时分别为99(79-110)毫升/分钟、100(81-110)毫升/分钟、96(60-122)毫升/分钟、118(101-130)毫升/分钟、124(110-141)毫升/分钟,p分别为0.41、0.52、0.73、0.33、0.20。结论在有效启动 ECLS 后停止 CPR 不会降低 MAP 或颈动脉血流量。未来的研究可能会评估用心肺复苏增强低流量 ECLS 的效果。
{"title":"Effect of chest compressions in addition to extracorporeal life support on carotid flow in an experimental model of refractory cardiac arrest in pigs","authors":"Sergey Gurevich ,&nbsp;Rajat Kalra ,&nbsp;Marinos Kosmopoulos ,&nbsp;Alexandra M Marquez ,&nbsp;Deborah Jaeger ,&nbsp;Mitchell Bemenderfer ,&nbsp;Danielle Burroughs ,&nbsp;Jason A Bartos ,&nbsp;Demetris Yannopoulos ,&nbsp;Sebastian Voicu","doi":"10.1016/j.resplu.2024.100826","DOIUrl":"10.1016/j.resplu.2024.100826","url":null,"abstract":"<div><h3>Background</h3><div>Extracorporeal life support (ECLS) provides organ perfusion in refractory cardiac arrest but during the initiation of ECLS mean arterial pressure (MAP) and carotid flow may be suboptimal due to hypotension and/or insufficient flow. We hypothesized that cardiopulmonary resuscitation (CPR) in addition to ECLS may increase carotid flow and MAP compared to ECLS alone.</div></div><div><h3>Methods</h3><div>Observational pilot study comparing hemodynamic parameters before and after CPR cessation in pigs supported by ECLS for experimental refractory cardiac arrest. Pigs were anesthetized, ventricular fibrillation was induced for 3 min, automated CPR performed for 30 min, ECLS was initiated then CPR stopped.</div><div>Variables averaged over 3 s were compared between the last 3 s of CPR + ECLS and 3, 6, 30 s, and 5 and 10 min of ECLS alone. Data are expressed as medians (25–75 interquartile range) and compared using paired samples Wilcoxon test.</div></div><div><h3>Results</h3><div>Nine pigs were included, ECLS was initiated at 2.7 (2.3–2.8) L/min. MAP during CPR + ECLS was 56(53.0–59.2) mmHg, <em>versus</em> 50(45–57)mmHg, 52(46–59)mmHg, 61(50–63)mmHg, 57 (54–66)mmHg, 54 (47–58)mmHg of ECLS alone, p = 0.50, 0.61, 0.70, 0.44, 0.73 respectively. Carotid flow was 113(78–119) ml/min during CPR + ECLS <em>versus</em> 99(79–110)ml/min, 100(81–110)ml/min, 96(60–122)ml/min, 118 (101–130)ml/min, 124 (110–141)ml/min, p = 0.41, 0.52, 0.73, 0.33, 0.20 respectively. When ECLS was initiated at lower flow, 1.5 L/min (one pig), MAP decreased from 59 to 45 mmHg, and carotid flow from 78.2 to 32.5 ml/min after 3 s of ECLS alone.</div></div><div><h3>Conclusion</h3><div>Stopping CPR after effective ECLS initiation does not decrease MAP or carotid flow. Future studies may evaluate augmenting low flow ECLS with CPR.</div></div>","PeriodicalId":94192,"journal":{"name":"Resuscitation plus","volume":"20 ","pages":"Article 100826"},"PeriodicalIF":2.1,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142659590","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
Monocyte programmed death-ligand 1 upregulation in early post-out-of-hospital cardiac arrest is associated with increased risk of acute respiratory distress syndrome 院外心脏骤停后早期单核细胞程序性死亡配体 1 上调与急性呼吸窘迫综合征风险增加有关
IF 2.1 Q3 CRITICAL CARE MEDICINE Pub Date : 2024-11-07 DOI: 10.1016/j.resplu.2024.100822
Le An , Rui Shao , Chenchen Hang , Xingsheng Wang , Luying Zhang , Hao Cui , Jingfei Yu , Zhenyu Shan , Ziren Tang

Background

Out-of-hospital cardiac arrest (OHCA) is a major public health problem. Acute respiratory distress syndrome (ARDS) is a common condition in OHCA patients. We investigated the relationship between the expression of programmed death-1 (PD-1) related molecules and the development and prognosis of ARDS.

Methods

Between January 2021 and December 2023, post-resuscitated patients were screened for eligibility in the study. PD-1 related molecules expression was measured by flow cytometry at 48 h of admission in patients with OHCA. The prognostic variables were the development of ARDS during hospitalization and the 28-day patient mortality rate. We analyzed the relationship between the expression of PD-1-related molecules and the development of secondary ARDS in OHCA patients, and assessed the correlation of this expression with the prognosis of ARDS patients.

Results

In total, 107 consecutive OHCA patients were enrolled in this study. The median age of the enrolled patients was 60 years, with an age range of 53 to 67 years, and 71 % were male. Among the cardiac arrest patients, 44.8 % had a cardiac etiology, 30.8 % were witnessed, 17.8 % received bystander CPR, and 66.4 % had an initial rhythm of asystole. Our results showed that only monocyte ligand programmed death ligand-1 (PD-L1) expression was significantly elevated in the ARDS group of OHCA patients (P < 0.001). Among patients with ARDS, the expression of PD-L1 on monocytes in non-survivors was significantly higher than in survivors (P < 0.05). The Receiver operating characteristic curves analysis demonstrates that monocyte PD-L1 expression has predictive potential for the development and prognosis of ARDS. Multivariate logistic regression analysis showed that monocyte PD-L1 expression was an independent predictor of mortality in OHCA patients with ARDS.

Conclusions

This study indicates that patients with increased PD-L1 on monocytes after OHCA may be more likely to develop ARDS. The expression of PD-L1 on monocytes was an independent predictive factor for the incidence of ARDS and mortality rate in OHCA patients.
背景院外心脏骤停(OHCA)是一个重大的公共卫生问题。急性呼吸窘迫综合征(ARDS)是院外心脏骤停患者的常见病。我们研究了程序性死亡-1(PD-1)相关分子的表达与 ARDS 的发生和预后之间的关系。在 OHCA 患者入院 48 小时后,通过流式细胞术测量 PD-1 相关分子的表达。预后变量为住院期间出现的 ARDS 和 28 天的患者死亡率。我们分析了 PD-1 相关分子的表达与 OHCA 患者继发性 ARDS 发生之间的关系,并评估了该表达与 ARDS 患者预后的相关性。中位年龄为 60 岁,年龄范围在 53 岁至 67 岁之间,71% 为男性。在心脏骤停患者中,44.8%有心脏病病因,30.8%有目击者,17.8%接受了旁观者心肺复苏术,66.4%的患者初始心律为晕厥。我们的研究结果表明,在 OHCA 患者的 ARDS 组中,只有单核细胞配体程序性死亡配体-1(PD-L1)的表达明显升高(P <0.001)。在 ARDS 患者中,非存活者单核细胞上的 PD-L1 表达明显高于存活者(P <0.05)。接收者操作特征曲线分析表明,单核细胞 PD-L1 表达对 ARDS 的发生和预后具有预测潜力。多变量逻辑回归分析表明,单核细胞 PD-L1 表达是预测 OHCA 患者 ARDS 死亡率的独立指标。单核细胞上 PD-L1 的表达是预测 OHCA 患者 ARDS 发生率和死亡率的独立因素。
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引用次数: 0
Hemoglobin vesicles improve neurological outcomes after cardiac arrest in rats 血红蛋白囊泡可改善大鼠心脏骤停后的神经功能预后
IF 2.1 Q3 CRITICAL CARE MEDICINE Pub Date : 2024-11-07 DOI: 10.1016/j.resplu.2024.100819
Keisuke Tsuruta , Hidetada Fukushima , Hiromi Sakai

Aim

To investigate the effects of hemoglobin vesicles (HbVs) in preventing hypoxic brain injury after cardiac arrest in a rat model of asphyxia-related cardiac arrest.

Methods

Male Wistar rats were divided into three groups: HbVs (n = 18), control (n = 29), and sham (n = 7). Respiratory arrest was induced using muscle relaxants under ventilation. Cardiac arrest occurred 3–4 min later. After 8 min, HbVs or saline (5 ml/kg), adrenaline, and sodium bicarbonate were administered, followed by chest compressions and ventilation. Resuscitation was deemed successful with a mean arterial pressure > 60 mmHg sustained for at least 5 min. Behavioral and histopathological evaluations were performed 7 days later.

Results

Survival rates were 39 % and 24 % in the HbVs and control groups, respectively (P = 0.308). Motor activity scores and spatial memory were significantly higher in the HbVs group (P < 0.001). Hippocampal CA1 region staining indicated significantly less neuropathy in the HbVs group (P < 0.001).

Conclusion

The administration of HbVs during resuscitation was effective in mitigating brain damage after whole-brain ischemia in rats, as demonstrated by improved histopathological and neurological outcomes. This suggests potential neurological benefits for patients during resuscitation, although further research in larger animal models is required to validate these findings.
目的研究血红蛋白囊(HbVs)在大鼠窒息相关心脏骤停模型中预防心脏骤停后缺氧性脑损伤的效果。方法将雄性 Wistar 大鼠分为三组:HbVs 组(n = 18)、对照组(n = 29)和假组(n = 7)。在通气条件下使用肌肉松弛剂诱导呼吸停止。3-4 分钟后心跳停止。8 分钟后,注射 HbVs 或生理盐水(5 毫升/千克)、肾上腺素和碳酸氢钠,然后进行胸外按压和通气。平均动脉压达到 60 mmHg 并持续至少 5 分钟,即认为复苏成功。结果HbVs组和对照组的存活率分别为39%和24%(P = 0.308)。HbVs 组的运动活动评分和空间记忆力明显高于对照组(P = 0.001)。结论复苏期间给予 HbVs 能有效减轻大鼠全脑缺血后的脑损伤,组织病理学和神经学结果均有所改善。这表明患者在复苏期间可能会对神经系统产生益处,但还需要在更大的动物模型中进行进一步研究,以验证这些发现。
{"title":"Hemoglobin vesicles improve neurological outcomes after cardiac arrest in rats","authors":"Keisuke Tsuruta ,&nbsp;Hidetada Fukushima ,&nbsp;Hiromi Sakai","doi":"10.1016/j.resplu.2024.100819","DOIUrl":"10.1016/j.resplu.2024.100819","url":null,"abstract":"<div><h3>Aim</h3><div>To investigate the effects of hemoglobin vesicles (HbVs) in preventing hypoxic brain injury after cardiac arrest in a rat model of asphyxia-related cardiac arrest.</div></div><div><h3>Methods</h3><div>Male Wistar rats were divided into three groups: HbVs (n = 18), control (n = 29), and sham (n = 7). Respiratory arrest was induced using muscle relaxants under ventilation. Cardiac arrest occurred 3–4 min later. After 8 min, HbVs or saline (5 ml/kg), adrenaline, and sodium bicarbonate were administered, followed by chest compressions and ventilation. Resuscitation was deemed successful with a mean arterial pressure &gt; 60 mmHg sustained for at least 5 min. Behavioral and histopathological evaluations were performed 7 days later.</div></div><div><h3>Results</h3><div>Survival rates were 39 % and 24 % in the HbVs and control groups, respectively (P = 0.308). Motor activity scores and spatial memory were significantly higher in the HbVs group (P &lt; 0.001). Hippocampal CA1 region staining indicated significantly less neuropathy in the HbVs group (P &lt; 0.001).</div></div><div><h3>Conclusion</h3><div>The administration of HbVs during resuscitation was effective in mitigating brain damage after whole-brain ischemia in rats, as demonstrated by improved histopathological and neurological outcomes. This suggests potential neurological benefits for patients during resuscitation, although further research in larger animal models is required to validate these findings.</div></div>","PeriodicalId":94192,"journal":{"name":"Resuscitation plus","volume":"20 ","pages":"Article 100819"},"PeriodicalIF":2.1,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142659649","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
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。
{"title":"Feasibility of real-time compression frequency and compression depth assessment in CPR using a “machine-learning” artificial intelligence tool","authors":"Hannes Ecker ,&nbsp;Niels-Benjamin Adams ,&nbsp;Michael Schmitz ,&nbsp;Wolfgang A. Wetsch","doi":"10.1016/j.resplu.2024.100825","DOIUrl":"10.1016/j.resplu.2024.100825","url":null,"abstract":"<div><h3>Background</h3><div>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.</div></div><div><h3>Design</h3><div>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.</div></div><div><h3>Main results</h3><div>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.</div></div><div><h3>Conclusions</h3><div>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.</div></div>","PeriodicalId":94192,"journal":{"name":"Resuscitation plus","volume":"20 ","pages":"Article 100825"},"PeriodicalIF":2.1,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142587356","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
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。
{"title":"Impact of video-assisted neonatal resuscitation on newborns and resuscitators: A feasibility study","authors":"Hiroki Otsuka ,&nbsp;Eiji Hirakawa ,&nbsp;Asataro Yara ,&nbsp;Daisuke Saito ,&nbsp;Takuya Tokuhisa","doi":"10.1016/j.resplu.2024.100811","DOIUrl":"10.1016/j.resplu.2024.100811","url":null,"abstract":"<div><h3>Aim</h3><div>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.</div></div><div><h3>Methods</h3><div>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.</div></div><div><h3>Results</h3><div>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.</div></div><div><h3>Conclusion</h3><div>Telemedicine support in neonatal resuscitation can be introduced without significant adverse effects.</div></div>","PeriodicalId":94192,"journal":{"name":"Resuscitation plus","volume":"20 ","pages":"Article 100811"},"PeriodicalIF":2.1,"publicationDate":"2024-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142578624","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
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Resuscitation plus
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