Pub Date : 2025-09-29DOI: 10.1016/j.resplu.2025.101119
Laura Faiver , Patrick J. Coppler , Jonathan Tam , Cecelia R. Ratay , Byron C. Drumheller , Nicholas Case , Jonathan Elmer
Purpose
Jugular bulb venous oxygen saturation (SjvO2) reflects the balance between cerebral oxygen supply and consumption. Clinically distinct phenotypes of hypoxic ischemic brain injury (HIBI) may have different trajectories of SjvO2 over time. We aimed to identify trajectories of SjvO2 over time and explore the relationship between SjvO2 and potential physiological confounders.
Methods
We conducted a single center retrospective study including comatose survivors of cardiac arrest who underwent SjvO2 monitoring. We used group-based trajectory modeling to identify distinct trajectories of SjvO2. We assessed the association between trajectory group and time-varying covariates, mean arterial pressure (MAP) and the partial pressures of oxygen (PaO2) and carbon dioxide (PaCO2).
Results
Among 109 patients, we identified two SjvO2 trajectories. Trajectory Group 1 comprised 57 % of the population and had normal SjvO2 that increased modestly over time. Group 2 comprised 43 % of the population and was characterized by persistent pathologically elevated SjvO2. Increasing PaO2, PaCO2, and MAP were all associated with trajectory shape in Group 1, while PaO2 and MAP, but not PaCO2 were associated with Group 2 SjvO2 trajectory. Trajectory Group 2 had evidence of more severe neurologic injury at presentation and worse outcomes.
Conclusion
We identified two distinct trajectories of SjvO2 after cardiac arrest. We found evidence of heterogeneity in the pathophysiology of HIBI between groups, suggesting distinct phenotypes of HIBI.
{"title":"Trajectories of jugular bulb venous oxygen saturation after cardiac arrest are associated with distinct patterns of cerebral pathophysiology","authors":"Laura Faiver , Patrick J. Coppler , Jonathan Tam , Cecelia R. Ratay , Byron C. Drumheller , Nicholas Case , Jonathan Elmer","doi":"10.1016/j.resplu.2025.101119","DOIUrl":"10.1016/j.resplu.2025.101119","url":null,"abstract":"<div><h3>Purpose</h3><div>Jugular bulb venous oxygen saturation (SjvO<sub>2</sub>) reflects the balance between cerebral oxygen supply and consumption. Clinically distinct phenotypes of hypoxic ischemic brain injury (HIBI) may have different trajectories of SjvO<sub>2</sub> over time. We aimed to identify trajectories of SjvO<sub>2</sub> over time and explore the relationship between SjvO<sub>2</sub> and potential physiological confounders.</div></div><div><h3>Methods</h3><div>We conducted a single center retrospective study including comatose survivors of cardiac arrest who underwent SjvO<sub>2</sub> monitoring. We used group-based trajectory modeling to identify distinct trajectories of SjvO<sub>2</sub>. We assessed the association between trajectory group and time-varying covariates, mean arterial pressure (MAP) and the partial pressures of oxygen (PaO<sub>2</sub>) and carbon dioxide (PaCO<sub>2</sub>).</div></div><div><h3>Results</h3><div>Among 109 patients, we identified two SjvO<sub>2</sub> trajectories. Trajectory Group 1 comprised 57 % of the population and had normal SjvO<sub>2</sub> that increased modestly over time. Group 2 comprised 43 % of the population and was characterized by persistent pathologically elevated SjvO<sub>2</sub>. Increasing PaO<sub>2</sub>, PaCO<sub>2</sub>, and MAP were all associated with trajectory shape in Group 1, while PaO<sub>2</sub> and MAP, but not PaCO<sub>2</sub> were associated with Group 2 SjvO<sub>2</sub> trajectory. Trajectory Group 2 had evidence of more severe neurologic injury at presentation and worse outcomes.</div></div><div><h3>Conclusion</h3><div>We identified two distinct trajectories of SjvO<sub>2</sub> after cardiac arrest. We found evidence of heterogeneity in the pathophysiology of HIBI between groups, suggesting distinct phenotypes of HIBI.</div></div>","PeriodicalId":94192,"journal":{"name":"Resuscitation plus","volume":"26 ","pages":"Article 101119"},"PeriodicalIF":2.4,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145332514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-09-26DOI: 10.1016/j.resplu.2025.101115
Xiaohua Lou , Bingwen Zhang , Miaomiao Jin , Yuan Fang , Daoyuan Jin , Hao Zhou
Objective
Cardiac arrest is the most serious complication of endotracheal intubation in the emergency department (ED). The aim of this study was to develop and validate a nomogram model for predicting post-intubation cardiac arrest (PICA) in ED setting.
Methods
We conducted a retrospective study of patients who underwent endotracheal intubation in the ED between October 2022 and March 2024. Data collected including patient demographics, diagnosis, pre-induction, and post-intubation clinical parameters. PICA was defined as cardiac arrest occurred within 60 min of endotracheal intubation. Least absolute shrinkage and selection operator (LASSO) regression was utilized to identify potential predictor variables. Multivariable logistic regression was used to develop a nomogram risk prediction model. Internal validation was performed by bootstrap method. Receiver operating characteristic (ROC) curves, calibration curves, and decision curves were used to assess the performance of the nomogram.
Results
A total of 241,840 patients visited the ED during this period, of whom 1591 underwent tracheal intubation, corresponding to an intubation rate in the ED of 6.8 per 1,000 patient visits. Of the 1167 cases included in the study, 32 (2.7 %) experienced cardiac arrest within 60 min after endotracheal intubation. The LASSO identified five non-zero coefficient variables (systolic blood pressure, heart rate, percutaneous arterial oxygen saturation <90 %, intubation within 5 min of ED arrival, and absence of induction). These variables were used to build a predictive nomogram model. The area under the curve (AUC) of nomogram was 0.834 (95 %CI: 0.738–0.931), it had a sensitivity of 0.781 and specificity of 0.850. The C-index of the model was 0.835, and internal validation showed a corrected C-index of 0.819. Decision curve analysis demonstrated the clinical utility of the model.
Conclusions
Our nomogram model, based on systolic blood pressure, heart rate, percutaneous arterial oxygen saturation <90 %, intubation within 5 min of ED arrival, and absence of induction, effectively predicted PICA in ED. This model may serve as a valuable tool for clinicians to identify high-risk emergency patients and optimize airway management strategies.
{"title":"Nomogram model for predicting post-intubation cardiac arrest in the emergency department: a retrospective study","authors":"Xiaohua Lou , Bingwen Zhang , Miaomiao Jin , Yuan Fang , Daoyuan Jin , Hao Zhou","doi":"10.1016/j.resplu.2025.101115","DOIUrl":"10.1016/j.resplu.2025.101115","url":null,"abstract":"<div><h3>Objective</h3><div>Cardiac arrest is the most serious complication of endotracheal intubation in the emergency department (ED). The aim of this study was to develop and validate a nomogram model for predicting post-intubation cardiac arrest (PICA) in ED setting.</div></div><div><h3>Methods</h3><div>We conducted a retrospective study of patients who underwent endotracheal intubation in the ED between October 2022 and March 2024. Data collected including patient demographics, diagnosis, pre-induction, and post-intubation clinical parameters. PICA was defined as cardiac arrest occurred within 60 min of endotracheal intubation. Least absolute shrinkage and selection operator (LASSO) regression was utilized to identify potential predictor variables. Multivariable logistic regression was used to develop a nomogram risk prediction model. Internal validation was performed by bootstrap method. Receiver operating characteristic (ROC) curves, calibration curves, and decision curves were used to assess the performance of the nomogram.</div></div><div><h3>Results</h3><div>A total of 241,840 patients visited the ED during this period, of whom 1591 underwent tracheal intubation, corresponding to an intubation rate in the ED of 6.8 per 1,000 patient visits. Of the 1167 cases included in the study, 32 (2.7 %) experienced cardiac arrest within 60 min after endotracheal intubation. The LASSO identified five non-zero coefficient variables (systolic blood pressure, heart rate, percutaneous arterial oxygen saturation <90 %, intubation within 5 min of ED arrival, and absence of induction). These variables were used to build a predictive nomogram model. The area under the curve (AUC) of nomogram was 0.834 (95 %CI: 0.738–0.931), it had a sensitivity of 0.781 and specificity of 0.850. The C-index of the model was 0.835, and internal validation showed a corrected C-index of 0.819. Decision curve analysis demonstrated the clinical utility of the model.</div></div><div><h3>Conclusions</h3><div>Our nomogram model, based on systolic blood pressure, heart rate, percutaneous arterial oxygen saturation <90 %, intubation within 5 min of ED arrival, and absence of induction, effectively predicted PICA in ED. This model may serve as a valuable tool for clinicians to identify high-risk emergency patients and optimize airway management strategies.</div></div>","PeriodicalId":94192,"journal":{"name":"Resuscitation plus","volume":"26 ","pages":"Article 101115"},"PeriodicalIF":2.4,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145266560","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-09-26DOI: 10.1016/j.resplu.2025.101112
Munekazu Takeda, Ryokan Ikebe, Takuya Oshiro, Mizuho Namiki, Shimpei Asada, Shusuke Mori, SOS-KANTO 2017 Study Group
Background
In Japan, emergency medical services (EMS) routinely record pupillary size and pupillary light reflex (PLR) during prehospital care for out-of-hospital cardiac arrest (OHCA). While hospital-based studies have established the prognostic value of pupillary findings, the significance of prehospital pupillary diameter remains uncertain.
Objective
To examine whether pupillary diameter at EMS contact predicts prehospital return of spontaneous circulation (ROSC) and 30-day neurological outcomes.
Methods
This retrospective cohort study analyzed SOS-KANTO 2017, a prospective multicenter OHCA registry. Of 9909 adults, 8494 were eligible after excluding those not in arrest at EMS contact or with missing data. EMS personnel, trained in neurological assessment, documented pupillary diameter using standardized visual charts (0.5-mm increments) but recorded registry values in 1-mm categories (1–8 mm). The primary outcome was prehospital return of spontaneous circulation (ROSC), and the secondary outcome was 30-day favorable neurological status (CPC 1–2). Multivariable logistic regression adjusted for demographics, resuscitation factors, and Utstein variables. Receiver operating characteristic (ROC) analyses, treating failure to achieve ROSC as the positive condition, were performed to assess sensitivity, specificity, and false positive rate (FPR) for futility thresholds.
Results
Larger pupillary diameter was independently associated with reduced odds of favorable 30-day outcome (odds ratio [OR] per 1-mm increase, 0.73; 95 % CI 0.61–0.86; p < 0.001). Pupillary diameter was also inversely associated with achieving ROSC (OR per 1-mm increase, 0.694; 95 % CI 0.644–0.748; p < 0.001). Thresholds of ≥7–8 mm predicted failure to achieve ROSC with high specificity (0.93–0.99) but poor sensitivity.
Conclusions
Prehospital pupillary diameter is independently associated with both ROSC and 30-day neurological outcome. Although extreme dilation (≥7–8 mm) provides a highly specific marker of futility, low sensitivity precludes its use as a stand-alone criterion. Pupillary assessment may nonetheless contribute, in combination with other prehospital indicators, to a multimodal framework for early decision-making.
在日本,急诊医疗服务(EMS)在院前护理院外心脏骤停(OHCA)时常规记录瞳孔大小和瞳孔光反射(PLR)。虽然以医院为基础的研究已经确立了瞳孔检查结果的预后价值,但院前瞳孔直径的意义仍然不确定。目的探讨急诊接触时瞳孔直径是否能预测院前自发循环(ROSC)恢复和30天神经系统预后。方法本回顾性队列研究分析了前瞻性多中心OHCA登记系统SOS-KANTO 2017。在9909名成年人中,剔除那些在EMS联系时没有被捕或数据缺失的人后,有8494人符合条件。EMS人员经过神经学评估方面的培训,使用标准化视觉图表记录瞳孔直径(增量为0.5毫米),但记录1毫米类别(1-8毫米)的注册值。主要终点是院前自发循环恢复(ROSC),次要终点是30天良好的神经系统状态(CPC 1-2)。多变量logistic回归校正了人口统计学、复苏因素和Utstein变量。将未达到ROSC作为阳性条件,进行受试者工作特征(ROC)分析,以评估无效阈值的敏感性、特异性和假阳性率(FPR)。瞳孔直径增大与30天预后良好的几率降低独立相关(每增加1毫米的优势比[OR]为0.73;95% CI为0.61-0.86;p < 0.001)。瞳孔直径也与ROSC的实现呈负相关(OR每增加1毫米,0.694;95% CI 0.644-0.748; p < 0.001)。阈值≥7-8 mm预测无法实现ROSC,特异性高(0.93-0.99),但敏感性差。结论院前瞳孔直径与ROSC和30天神经预后独立相关。虽然极度扩张(≥7 - 8mm)是一个高度特异性的无效标志,但低敏感性使其无法作为单独的标准。然而,瞳孔评估与其他院前指标相结合,可能有助于形成早期决策的多模式框架。
{"title":"Association of prehospital pupillary diameter with return of spontaneous circulation and neurological outcome after out-of-hospital cardiac arrest: A multicenter retrospective analysis","authors":"Munekazu Takeda, Ryokan Ikebe, Takuya Oshiro, Mizuho Namiki, Shimpei Asada, Shusuke Mori, SOS-KANTO 2017 Study Group","doi":"10.1016/j.resplu.2025.101112","DOIUrl":"10.1016/j.resplu.2025.101112","url":null,"abstract":"<div><h3>Background</h3><div>In Japan, emergency medical services (EMS) routinely record pupillary size and pupillary light reflex (PLR) during prehospital care for out-of-hospital cardiac arrest (OHCA). While hospital-based studies have established the prognostic value of pupillary findings, the significance of prehospital pupillary diameter remains uncertain.</div></div><div><h3>Objective</h3><div>To examine whether pupillary diameter at EMS contact predicts prehospital return of spontaneous circulation (ROSC) and 30-day neurological outcomes.</div></div><div><h3>Methods</h3><div>This retrospective cohort study analyzed SOS-KANTO 2017, a prospective multicenter OHCA registry. Of 9909 adults, 8494 were eligible after excluding those not in arrest at EMS contact or with missing data. EMS personnel, trained in neurological assessment, documented pupillary diameter using standardized visual charts (0.5-mm increments) but recorded registry values in 1-mm categories (1–8 mm). The primary outcome was prehospital return of spontaneous circulation (ROSC), and the secondary outcome was 30-day favorable neurological status (CPC 1–2). Multivariable logistic regression adjusted for demographics, resuscitation factors, and Utstein variables. Receiver operating characteristic (ROC) analyses, treating failure to achieve ROSC as the positive condition, were performed to assess sensitivity, specificity, and false positive rate (FPR) for futility thresholds.</div></div><div><h3>Results</h3><div>Larger pupillary diameter was independently associated with reduced odds of favorable 30-day outcome (odds ratio [OR] per 1-mm increase, 0.73; 95 % CI 0.61–0.86; <em>p</em> < 0.001). Pupillary diameter was also inversely associated with achieving ROSC (OR per 1-mm increase, 0.694; 95 % CI 0.644–0.748; <em>p</em> < 0.001). Thresholds of ≥7–8 mm predicted failure to achieve ROSC with high specificity (0.93–0.99) but poor sensitivity.</div></div><div><h3>Conclusions</h3><div>Prehospital pupillary diameter is independently associated with both ROSC and 30-day neurological outcome. Although extreme dilation (≥7–8 mm) provides a highly specific marker of futility, low sensitivity precludes its use as a stand-alone criterion. Pupillary assessment may nonetheless contribute, in combination with other prehospital indicators, to a multimodal framework for early decision-making.</div></div>","PeriodicalId":94192,"journal":{"name":"Resuscitation plus","volume":"26 ","pages":"Article 101112"},"PeriodicalIF":2.4,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145266371","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-09-26DOI: 10.1016/j.resplu.2025.101113
Mariju Baluyot , Jackson Hamersly , Matthew Hays , Ryan Stambro , Rachell Laughlin , Benjamin Nti
Background
Ventilation using bag-valve-mask (BVM) resuscitators is commonly associated with excessive ventilation volumes and rates, even among trained providers. This can lead to volutrauma, particularly in pediatric patients as lung volumes vary by age and weight. The Butterfly BVM is a novel, adjustable device designed to regulate volume, rate, and peak inspiratory pressure to promote safer ventilation.
Objective
To compare minute ventilation (MV) and tidal volume (Vt) delivery using the Butterfly BVM versus a traditional BVM (Ambu Spur II) among interprofessional teams during simulated pediatric resuscitations.
Methods
In this prospective simulation-based study, 42 participants (physicians, nurses, EMTs) provided manual ventilation to infant and adolescent mannequins using a traditional and Butterfly BVM. Primary outcome was MV delivery; secondary outcomes included Vt delivery and user feedback. Data were analyzed using generalized linear mixed models.
Results
Participants were significantly more likely to deliver MV within target range using the Butterfly BVM (73.8 %) versus the traditional BVM (32.1 %; OR = 10.5, 95 % CI: 4.1–26.5; p < 0.0001). The Butterfly BVM also resulted in significantly lower average Vt (LSMean = –164.3 mL; p < 0.0001). Users found the device easy to use (69.0 %) and intuitive (73.8 %), citing its ability to decrease cognitive load and risk of overventilation.
Conclusion
The Butterfly BVM significantly improves delivery of MV and Vt during simulated pediatric resuscitations compared to a traditional BVM. Its adjustable controls for respiratory parameters offer a promising solution to prevent volutrauma during pediatric ventilation. Further studies are warranted to validate these findings in real-world settings.
使用气囊-阀-面罩(BVM)复苏器进行通气通常与过度的通气量和通气量有关,即使在训练有素的医护人员中也是如此。这可能导致肺容量创伤,特别是在儿科患者中,因为肺容量因年龄和体重而异。蝶式呼吸机是一种新颖的、可调节的装置,旨在调节容积、速率和峰值吸气压力,以促进更安全的通气。目的比较跨专业团队在模拟儿科复苏过程中使用蝶式BVM和传统BVM (Ambu Spur II)的分分钟通气(MV)和潮气量(Vt)。方法在这项基于前瞻性模拟的研究中,42名参与者(医生、护士、急救医生)分别使用传统和蝶式BVM为婴儿和青少年人体模型提供人工通气。主要结局是MV分娩;次要结果包括静脉输送和用户反馈。数据分析采用广义线性混合模型。结果:与传统BVM相比,使用Butterfly BVM(73.8%)的参与者更有可能在目标范围内传递MV (32.1%; OR = 10.5, 95% CI: 4.1-26.5; p < 0.0001)。蝴蝶BVM也显著降低了平均Vt (LSMean = -164.3 mL; p < 0.0001)。用户认为该设备易于使用(69.0%)和直观(73.8%),理由是它能够降低认知负荷和过度通风的风险。结论与传统的BVM相比,蝶式BVM可显著改善模拟儿科复苏时的MV和Vt输出。它的可调节控制呼吸参数提供了一个有前途的解决方案,以防止儿科通气期间的容量创伤。进一步的研究需要在现实环境中验证这些发现。
{"title":"Measuring ventilation in pediatric simulations using a novel adjustable bag-valve-mask resuscitator: a comparative study with the Butterfly BVM and the traditional Ambu bag","authors":"Mariju Baluyot , Jackson Hamersly , Matthew Hays , Ryan Stambro , Rachell Laughlin , Benjamin Nti","doi":"10.1016/j.resplu.2025.101113","DOIUrl":"10.1016/j.resplu.2025.101113","url":null,"abstract":"<div><h3>Background</h3><div>Ventilation using bag-valve-mask (BVM) resuscitators is commonly associated with excessive ventilation volumes and rates, even among trained providers. This can lead to volutrauma, particularly in pediatric patients as lung volumes vary by age and weight. The Butterfly BVM is a novel, adjustable device designed to regulate volume, rate, and peak inspiratory pressure to promote safer ventilation.</div></div><div><h3>Objective</h3><div>To compare minute ventilation (MV) and tidal volume (Vt) delivery using the Butterfly BVM versus a traditional BVM (Ambu Spur II) among interprofessional teams during simulated pediatric resuscitations.</div></div><div><h3>Methods</h3><div>In this prospective simulation-based study, 42 participants (physicians, nurses, EMTs) provided manual ventilation to infant and adolescent mannequins using a traditional and Butterfly BVM. Primary outcome was MV delivery; secondary outcomes included Vt delivery and user feedback. Data were analyzed using generalized linear mixed models.</div></div><div><h3>Results</h3><div>Participants were significantly more likely to deliver MV within target range using the Butterfly BVM (73.8 %) versus the traditional BVM (32.1 %; OR = 10.5, 95 % CI: 4.1–26.5; p < 0.0001). The Butterfly BVM also resulted in significantly lower average Vt (LSMean = –164.3 mL; p < 0.0001). Users found the device easy to use (69.0 %) and intuitive (73.8 %), citing its ability to decrease cognitive load and risk of overventilation.</div></div><div><h3>Conclusion</h3><div>The Butterfly BVM significantly improves delivery of MV and Vt during simulated pediatric resuscitations compared to a traditional BVM. Its adjustable controls for respiratory parameters offer a promising solution to prevent volutrauma during pediatric ventilation. Further studies are warranted to validate these findings in real-world settings.</div></div>","PeriodicalId":94192,"journal":{"name":"Resuscitation plus","volume":"26 ","pages":"Article 101113"},"PeriodicalIF":2.4,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145332604","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-09-23DOI: 10.1016/j.resplu.2025.101103
Laith Alhuneafat , Thomas A Murray , Nicholas J Johnson , Cindy Hsu , Brian Grunau , Tamas Alexy , Demetris Yannopoulos , Jason Bartos , Joseph E. Tonna
Background
Percutaneous coronary intervention (PCI) improves survival in acute coronary syndromes and has been used in recent randomized trials of extracorporeal cardiopulmonary resuscitation (ECPR). However, the role of PCI during ECPR for out-of-hospital cardiac arrest (OHCA) remains uncertain.
Methods
We analyzed adult patients with OHCA from the Extracorporeal Life Support Organization (ELSO) Registry from January 2020 to December 2022 who underwent ECPR at high-volume centers. Patients were stratified by PCI receipt. We applied propensity-score weighting to balance covariates predicting the probability of receipt of PCI including year, age, sex, race, quantitative burden of comorbidities, CPR duration prior to ECMO flow start, initial cardiac arrest rhythm, and center-level case volume. The primary outcome was survival to hospital discharge. We estimated adjusted odds ratios (aORs) using multivariable logistic regression and inverse probability weighting (IPW).
Results
Among 576 adult OHCA patients who received ECPR, 138 (24.3 %) received PCI. PCI patients were more likely to arrest at home (59.4 % vs. 46.1 %; p = 0.049) and have higher a greater initial incidence rates of ventricular fibrillation (VF) as the first detected rhythm (68.1 % vs. 48.9 %; p < 0.001). Survival to hospital discharge was similar between groups (PCI: 18.1 %, non-PCI: 20.1 %). Adjusted causal inference analyses, including multivariable logistic regression (OR 0.99, 95 % CI: 0.56–1.75, p = 0.98), inverse probability weighting (OR 1.03, 95 % CI: 0.58–1.82, p = 0.93), and augmented IPW models (OR 1.06, 95 % CI: 0.58–1.93, p = 0.85), showed no statistically significant association between PCI and survival to hospital discharge.
Conclusions
PCI was not associated with improved survival in adult ECPR patients. These findings highlight the need for further prospective studies to clarify the role of PCI in ECPR and identify patient populations that may benefit from this intervention.
背景:经皮冠状动脉介入治疗(PCI)可提高急性冠状动脉综合征患者的生存率,并已在近期的体外心肺复苏(ECPR)随机试验中得到应用。然而,PCI在院外心脏骤停(OHCA)的ECPR中的作用仍不确定。方法:我们分析了2020年1月至2022年12月在高容量中心接受ECPR的体外生命支持组织(ELSO)登记的成年OHCA患者。根据PCI接受情况对患者进行分层。我们应用倾向评分加权来平衡预测接受PCI的概率的协变量,包括年份、年龄、性别、种族、合并症的定量负担、ECMO血流开始前的CPR持续时间、初始心脏骤停节律和中心水平的病例量。主要终点是存活至出院。我们使用多变量逻辑回归和逆概率加权(IPW)估计校正优势比(aORs)。结果576例行ECPR的成年OHCA患者中,有138例(24.3%)行PCI。PCI患者更有可能在家中骤停(59.4%对46.1%,p = 0.049),并且作为首次检测到的心律,心室颤动(VF)的初始发病率更高(68.1%对48.9%,p < 0.001)。两组之间的生存率相似(PCI: 18.1%,非PCI: 20.1%)。校正后的因果推理分析,包括多变量logistic回归(OR 0.99, 95% CI: 0.56-1.75, p = 0.98)、逆概率加权(OR 1.03, 95% CI: 0.58-1.82, p = 0.93)和增强IPW模型(OR 1.06, 95% CI: 0.58-1.93, p = 0.85),均显示PCI与生存至出院之间无统计学意义的关联。结论spci与成人ECPR患者的生存率无相关性。这些发现强调需要进一步的前瞻性研究来阐明PCI在ECPR中的作用,并确定可能从这种干预中受益的患者群体。
{"title":"The effect of percutaneous coronary intervention after extracorporeal cardiopulmonary resuscitation on survival for out of hospital cardiac arrest: a causal inference analysis","authors":"Laith Alhuneafat , Thomas A Murray , Nicholas J Johnson , Cindy Hsu , Brian Grunau , Tamas Alexy , Demetris Yannopoulos , Jason Bartos , Joseph E. Tonna","doi":"10.1016/j.resplu.2025.101103","DOIUrl":"10.1016/j.resplu.2025.101103","url":null,"abstract":"<div><h3>Background</h3><div>Percutaneous coronary intervention (PCI) improves survival in acute coronary syndromes and has been used in recent randomized trials of extracorporeal cardiopulmonary resuscitation (ECPR). However, the role of PCI during ECPR for out-of-hospital cardiac arrest (OHCA) remains uncertain.</div></div><div><h3>Methods</h3><div>We analyzed adult patients with OHCA from the Extracorporeal Life Support Organization (ELSO) Registry from January 2020 to December 2022 who underwent ECPR at high-volume centers. Patients were stratified by PCI receipt. We applied propensity-score weighting to balance covariates predicting the probability of receipt of PCI including year, age, sex, race, quantitative burden of comorbidities, CPR duration prior to ECMO flow start, initial cardiac arrest rhythm, and center-level case volume. The primary outcome was survival to hospital discharge. We estimated adjusted odds ratios (aORs) using multivariable logistic regression and inverse probability weighting (IPW).</div></div><div><h3>Results</h3><div>Among 576 adult OHCA patients who received ECPR, 138 (24.3 %) received PCI. PCI patients were more likely to arrest at home (59.4 % vs. 46.1 %; <em>p</em> = 0.049) and have higher a greater initial incidence rates of ventricular fibrillation (VF) as the first detected rhythm (68.1 % vs. 48.9 %; <em>p</em> < 0.001). Survival to hospital discharge was similar between groups (PCI: 18.1 %, non-PCI: 20.1 %). Adjusted causal inference analyses, including multivariable logistic regression (OR 0.99, 95 % CI: 0.56–1.75, <em>p</em> = 0.98), inverse probability weighting (OR 1.03, 95 % CI: 0.58–1.82, <em>p</em> = 0.93), and augmented IPW models (OR 1.06, 95 % CI: 0.58–1.93, <em>p</em> = 0.85), showed no statistically significant association between PCI and survival to hospital discharge.</div></div><div><h3>Conclusions</h3><div>PCI was not associated with improved survival in adult ECPR patients. These findings highlight the need for further prospective studies to clarify the role of PCI in ECPR and identify patient populations that may benefit from this intervention.</div></div>","PeriodicalId":94192,"journal":{"name":"Resuscitation plus","volume":"26 ","pages":"Article 101103"},"PeriodicalIF":2.4,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145266372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-09-23DOI: 10.1016/j.resplu.2025.101109
Chelsea Morin , Kashmala Yousafzai , Brenda Hiu Yan Law , Georg M. Schmölzer
Objective
To compare mask positive pressure ventilation (PPV) provided by pressure guided devices (i.e., T-Piece) with or without a respiratory function monitor (RFM) with ventilator-based volume-targeted ventilation (VTV) using a VN500 Draeger ventilator or the NextStepTM, a novel ventilation device designed for the delivery room.
Methods
Prospective, randomized, crossover, simulation study. Following orientation to ventilation devices, participants were randomized to order of four ventilation devices (NextStepTM, VN500 Draeger ventilator, T-piece PPV with RFM visible, and T-piece PPV with RFM masked) and order of four simulation scenarios. The study was performed in a neonatal resuscitation room within a level 3 neonatal intensive care unit. Participants were trained neonatal resuscitation providers or instructors with experience as team leader. Semi-automated, ventilator-based volume-targeted mask PPV (VTV-PPV) (NextStepTM or Draeger Ventilator) was compared to manual PPV via a T-piece device (RFM either visible or masked). Primary outcome was reduction in mask leak with the NextStepTM compared to the other devices.
Results
Thirty-two healthcare professionals [25 (78.1 %) were female and 7 (21.9 %) were male] participated. The median (interquartile range) mask leak was significantly lower with VTV-PPV with NextStepTM [6 (1–12) %] compared to the Draeger Ventilator [24 (25–38)%, p = 0.01], T-Piece with RFM [18 (9–33) %, p = 0.0088], and T-Piece without RFM [32 (12–57)%, p = >0.0001]. The median (IQR) delivered tidal volume was not different between groups, although the NextStepTM had less tidal volume variation compared to all other groups and peak inflation pressure was significantly lower with VTV-PPV with NextStepTM compared to all other groups.
Conclusion
In a neonatal manikin model, VTV-PPV with the NextStepTM using a two-hand hold reduced mask leak compared to the T-piece without RFM guidance.
目的比较有或无呼吸功能监测仪(RFM)的压力引导装置(即T-Piece)提供的面罩正压通气(PPV)与使用VN500 Draeger呼吸机或为产房设计的新型通气装置NextStepTM的基于呼吸机的容积定向通气(VTV)。方法前瞻性、随机、交叉、模拟研究。在对通风设备进行定向后,参与者被随机分配到四种通风设备(NextStepTM、VN500 Draeger呼吸机、可见RFM的t片式PPV和屏蔽RFM的t片式PPV)的顺序和四种模拟场景的顺序。研究是在三级新生儿重症监护病房的新生儿复苏室进行的。参与者接受过新生儿复苏提供者或具有团队领导经验的指导员的培训。将半自动、基于呼吸机的容积定向面罩PPV (VTV-PPV) (NextStepTM或Draeger呼吸机)与通过t型装置(RFM可见或遮罩)进行的手动PPV进行比较。主要结果是与其他设备相比,NextStepTM减少了掩膜泄漏。结果32名医护人员参与调查,其中女性25人(78.1%),男性7人(21.9%)。与Draeger呼吸机[24 (25-38)%,p = 0.01],带RFM的T-Piece [18 (9-33)%, p = 0.0088]和不带RFM的T-Piece [32 (12-57)%, p = >;0.0001]相比,带NextStepTM的VTV-PPV的面罩泄漏中位数(四分位数范围)显著降低[6(1-12)%]。虽然与其他所有组相比,NextStepTM的潮汐量变化较小,并且与所有其他组相比,使用NextStepTM的VTV-PPV的峰值通货膨胀压力显着降低,但两组之间的中位数(IQR)交付潮汐量没有差异。结论在新生儿模型中,与没有RFM引导的T-piece相比,使用双手握住的NextStepTM的VTV-PPV减少了面罩泄漏。
{"title":"Volume targeted mask ventilation during simulated neonatal resuscitation – A randomized crossover manikin study","authors":"Chelsea Morin , Kashmala Yousafzai , Brenda Hiu Yan Law , Georg M. Schmölzer","doi":"10.1016/j.resplu.2025.101109","DOIUrl":"10.1016/j.resplu.2025.101109","url":null,"abstract":"<div><h3>Objective</h3><div>To compare mask positive pressure ventilation (PPV) provided by pressure guided devices (i.e., T-Piece) with or without a respiratory function monitor (RFM) with ventilator-based volume-targeted ventilation (VTV) using a VN500 Draeger ventilator or the NextStep<sup>TM</sup>, a novel ventilation device designed for the delivery room.</div></div><div><h3>Methods</h3><div>Prospective, randomized, crossover, simulation study. Following orientation to ventilation devices, participants were randomized to order of four ventilation devices (NextStep<sup>TM</sup>, VN500 Draeger ventilator, T-piece PPV with RFM visible, and T-piece PPV with RFM masked) and order of four simulation scenarios. The study was performed in a neonatal resuscitation room within a level 3 neonatal intensive care unit. Participants were trained neonatal resuscitation providers or instructors with experience as team leader. <strong>Semi-automated, ventilator-based volume-targeted mask PPV (VTV-PPV) (NextStep<sup>TM</sup> or Draeger Ventilator) was compared to manual PPV via a T-piece device (RFM either visible or masked).</strong> Primary outcome was reduction in mask leak with the NextStep<sup>TM</sup> compared to the other devices.</div></div><div><h3>Results</h3><div>Thirty-two healthcare professionals [25 (78.1 %) were female and 7 (21.9 %) were male] participated. The median (interquartile range) mask leak was significantly lower with VTV-PPV with NextStep<sup>TM</sup> [6 (1–12) %] compared to the Draeger Ventilator [24 (25–38)%, p = 0.01], T-Piece with RFM [18 (9–33) %, p = 0.0088], and T-Piece without RFM [32 (12–57)%, p = >0.0001]. The median (IQR) delivered tidal volume was not different between groups, although the NextStep<sup>TM</sup> had less tidal volume variation compared to all other groups and peak inflation pressure was significantly lower with VTV-PPV with NextStep<sup>TM</sup> compared to all other groups.</div></div><div><h3>Conclusion</h3><div>In a neonatal manikin model, VTV-PPV with the NextStep<sup>TM</sup> using a two-hand hold reduced mask leak compared to the T-piece without RFM guidance.</div></div>","PeriodicalId":94192,"journal":{"name":"Resuscitation plus","volume":"26 ","pages":"Article 101109"},"PeriodicalIF":2.4,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145266376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-09-23DOI: 10.1016/j.resplu.2025.101111
Ana Belen Ocampo Cervantes , Carmen Amalia Lopez Lopez , Robert Greif , Federico Semeraro , Manuel Pardo Rios , Nino Fijačko
Background
Virtual reality (VR) is emerging in adult Basic Life Support (BLS) training, but its acceptance among older adults has not been fully studied. This study aimed to develop expert-informed BLS content for both VR and laptop formats, and to evaluate the feasibility, usability, knowledge acquisition, satisfaction, and cybersickness of these platforms among older adult learners.
Methods
A two-phase mixed-methods study was conducted. Five experts co-developed and validated a VR/laptop-compatible adult BLS scenario based on the 2021 European Resuscitation Council guidelines. This scenario was then tested by older adults who voluntarily participated in either VR- or laptop-based training at a public technology event in Spain. Post-training, we measured knowledge acquisition, usability, satisfaction, user experience, and cybersickness. Comparative statistics and regression analyses were performed to evaluate learning outcomes and predictors.
Results
Five experts developed a consensus-based adult BLS decision tree with 10 scenes and six questions. A total of 583 adults (mean age 72.3 ± 4.8 years) took part in the BLS training evaluation. Those in the VR group (n = 415) outperformed those in the laptop group (n = 168) in key steps, including initiating CPR (58 % vs 41 %, p < 0.001) and using an AED (49 % vs 23 %, p < 0.001). VR participants rated usability of VR-training as excellent (73.8 ± 4.2), expressed high satisfaction and realism. Cybersickness was low (13.1 %). VR training predicted higher knowledge scores (β = 5.8, p < 0.001), and increased scores by 5.8 points over laptop training. VR participants were 2.3 times more likely to answer BLS questions correctly (OR = 2.3, 95 % CI: 1.6–3.2, p < 0.001)
Conclusion
VR could improve adult BLS knowledge in older adults, with high levels of acceptance and positive user experience. Future work should enhance accessibility and reduce discomfort.
{"title":"Acceptance and feasibility of virtual reality for teaching adult basic life support in older populations","authors":"Ana Belen Ocampo Cervantes , Carmen Amalia Lopez Lopez , Robert Greif , Federico Semeraro , Manuel Pardo Rios , Nino Fijačko","doi":"10.1016/j.resplu.2025.101111","DOIUrl":"10.1016/j.resplu.2025.101111","url":null,"abstract":"<div><h3>Background</h3><div>Virtual reality (VR) is emerging in adult Basic Life Support (BLS) training, but its acceptance among older adults has not been fully studied. This study aimed to develop expert-informed BLS content for both VR and laptop formats, and to evaluate the feasibility, usability, knowledge acquisition, satisfaction, and cybersickness of these platforms among older adult learners.</div></div><div><h3>Methods</h3><div>A two-phase mixed-methods study was conducted. Five experts co-developed and validated a VR/laptop-compatible adult BLS scenario based on the 2021 European Resuscitation Council guidelines. This scenario was then tested by older adults who voluntarily participated in either VR- or laptop-based training at a public technology event in Spain. Post-training, we measured knowledge acquisition, usability, satisfaction, user experience, and cybersickness. Comparative statistics and regression analyses were performed to evaluate learning outcomes and predictors.</div></div><div><h3>Results</h3><div>Five experts developed a consensus-based adult BLS decision tree with 10 scenes and six questions. A total of 583 adults (mean age 72.3 ± 4.8 years) took part in the BLS training evaluation. Those in the VR group (n = 415) outperformed those in the laptop group (n = 168) in key steps, including initiating CPR (58 % vs 41 %, p < 0.001) and using an AED (49 % vs 23 %, p < 0.001). VR participants rated usability of VR-training as excellent (73.8 ± 4.2), expressed high satisfaction and realism. Cybersickness was low (13.1 %). VR training predicted higher knowledge scores (β = 5.8, p < 0.001), and increased scores by 5.8 points over laptop training. VR participants were 2.3 times more likely to answer BLS questions correctly (OR = 2.3, 95 % CI: 1.6–3.2, p < 0.001)</div></div><div><h3>Conclusion</h3><div>VR could improve adult BLS knowledge in older adults, with high levels of acceptance and positive user experience. Future work should enhance accessibility and reduce discomfort.</div></div>","PeriodicalId":94192,"journal":{"name":"Resuscitation plus","volume":"26 ","pages":"Article 101111"},"PeriodicalIF":2.4,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145266375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-09-23DOI: 10.1016/j.resplu.2025.101110
Nathan Charlton , David C. Berry , Vijay Kannan , Ryan Yee , Jestin N. Carlson , Aaron M. Orkin
Introduction
First aid providers may encounter life-threatening conditions requiring treatment with medications. Given that resuscitation medications in first aid kits may be administered infrequently, first aid providers may face situations where only expired medications are available.
Objective
This systematic search with a narrative review aims to evaluate the efficacy and safety of expired life-saving medications commonly used in first aid.
Methods
We conducted a search of PubMed, EMBASE, Web of Science, CINAHL, and Cochrane Library (inception–April 2025) for studies regarding expired albuterol, epinephrine, aspirin, or naloxone. Two reviewers independently screened titles and abstracts, followed by full-text reviews to determine eligibility. We included randomized controlled trials (RCTs), clinical trials, systematic reviews, meta-analyses, and observational studies evaluating expired medications’ potency and safety. Data extraction focused on study design, population, interventions, comparators, outcomes, and key findings.
Results
After deduplication, 1398 records were screened, and 17 studies met inclusion criteria: albuterol (n = 2), aspirin (n = 4), epinephrine (n = 8), and naloxone (n = 3). Albuterol (salbutamol) retained 98 % active drug 20–30 years past expiration. Aspirin (acetylsalicylic acid) could retain active drug for up to 40 years after expiration. Epinephrine autoinjectors could retain epinephrine for at least 36 months after expiration. Naloxone retained active drug for at least 19 months after expiration. There was minimal evidence of harmful degradation products.
Conclusions
Under individual study conditions, the evaluated expired first aid medications maintained active drug and were largely free of harmful byproducts beyond their labeled expiration dates. Scientific and ethical principles may suggest possible benefits from expired medications in emergency settings when alternatives are unavailable.
{"title":"The use of expired resuscitation medications for life-threatening first aid conditions: a systematic search and narrative review","authors":"Nathan Charlton , David C. Berry , Vijay Kannan , Ryan Yee , Jestin N. Carlson , Aaron M. Orkin","doi":"10.1016/j.resplu.2025.101110","DOIUrl":"10.1016/j.resplu.2025.101110","url":null,"abstract":"<div><h3>Introduction</h3><div>First aid providers may encounter life-threatening conditions requiring treatment with medications. Given that resuscitation medications in first aid kits may be administered infrequently, first aid providers may face situations where only expired medications are available.</div></div><div><h3>Objective</h3><div>This systematic search with a narrative review aims to evaluate the efficacy and safety of expired life-saving medications commonly used in first aid.</div></div><div><h3>Methods</h3><div>We conducted a search of PubMed, EMBASE, Web of Science, CINAHL, and Cochrane Library (inception–April 2025) for studies regarding expired albuterol, epinephrine, aspirin, or naloxone. Two reviewers independently screened titles and abstracts, followed by full-text reviews to determine eligibility. We included randomized controlled trials (RCTs), clinical trials, systematic reviews, meta-analyses, and observational studies evaluating expired medications’ potency and safety. Data extraction focused on study design, population, interventions, comparators, outcomes, and key findings.</div></div><div><h3>Results</h3><div>After deduplication, 1398 records were screened, and 17 studies met inclusion criteria: albuterol (<em>n</em> = 2), aspirin (<em>n</em> = 4), epinephrine (<em>n</em> = 8), and naloxone (<em>n</em> = 3). Albuterol (salbutamol) retained 98 % active drug 20–30 years past expiration. Aspirin (acetylsalicylic acid) could retain active drug for up to 40 years after expiration. Epinephrine autoinjectors could retain epinephrine for at least 36 months after expiration. Naloxone retained active drug for at least 19 months after expiration. There was minimal evidence of harmful degradation products.</div></div><div><h3>Conclusions</h3><div>Under individual study conditions, the evaluated expired first aid medications maintained active drug and were largely free of harmful byproducts beyond their labeled expiration dates. Scientific and ethical principles may suggest possible benefits from expired medications in emergency settings when alternatives are unavailable.</div></div>","PeriodicalId":94192,"journal":{"name":"Resuscitation plus","volume":"26 ","pages":"Article 101110"},"PeriodicalIF":2.4,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145266561","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-09-23DOI: 10.1016/j.resplu.2025.101108
Ádám Pál-Jakab , Bettina Nagy , Boldizsár Kiss , György Pápai , Nora Boussoussou , Béla Merkely , Miklós Constantinovits , Gábor Csató , Péter Sótonyi , Brigitta Szilágyi , Endre Zima
Background
Out-of-hospital cardiac arrest (OHCA) outcomes often differ between urban and rural settings, but comprehensive nationwide data from Central-Eastern Europe using uniform data collection and modern confounding control remain limited. We investigated urban–rural disparities in OHCA outcomes in Hungary.
Methods
We analysed 130,258 OHCA cases (2018–2023) from the Hungarian National Ambulance Service registry, classified as urban (70.1 %) or rural (29.9 %) using national administrative categories. The primary outcome was on-scene return of spontaneous circulation (ROSC). We performed univariable and multivariable logistic regression, propensity score matching (PSM) and continuous response-time modeling using natural cubic splines.
Results
The overall ROSC rate was 9.1 % (urban: 9.4 %, rural: 8.3 %, p < 0.001). After PSM, urban location remained significantly associated with higher survival (OR = 1.26, 95 % CI 1.20–1.32, p < 0.001). EMS response times were significantly longer in rural areas (median 14.9 vs 9.8 min, p < 0.001). Urban survival advantage was most pronounced in cases with shockable rhythms (OR = 1.57, 95 % CI 1.43–1.72), medical-witnessed arrests (OR = 1.31, 95 % CI 1.20–1.42), and response times ≤8 min (OR = 1.59, 95 % CI 1.44–1.76).
Conclusions
Significant urban–rural disparities in OHCA on-scene ROSC persist even after accounting for patient and arrest characteristics. These findings highlight the need for targeted interventions to strengthen the Chain of Survival in rural communities.
院外心脏骤停(OHCA)的结果往往在城市和农村环境中有所不同,但使用统一数据收集和现代混杂控制的来自中东欧的综合全国数据仍然有限。我们调查了匈牙利OHCA结果的城乡差异。方法:我们分析了匈牙利国家救护车服务登记处的130,258例OHCA病例(2018-2023),根据国家行政类别将其分类为城市(70.1%)或农村(29.9%)。主要结果是现场自发循环恢复(ROSC)。我们使用自然三次样条进行单变量和多变量逻辑回归、倾向得分匹配(PSM)和连续响应时间建模。结果总ROSC率为9.1%(城镇9.4%,农村8.3%,p < 0.001)。PSM后,城市位置仍然与较高的生存率显著相关(OR = 1.26, 95% CI 1.20-1.32, p < 0.001)。农村地区EMS反应时间明显更长(中位数14.9 vs 9.8分钟,p < 0.001)。城市生存优势在休克节律(OR = 1.57, 95% CI 1.43-1.72)、医学见证的骤停(OR = 1.31, 95% CI 1.20-1.42)和反应时间≤8分钟(OR = 1.59, 95% CI 1.44-1.76)的病例中最为明显。结论:即使在考虑了患者和骤停特征后,OHCA现场ROSC的显著城乡差异仍然存在。这些发现突出表明,需要采取有针对性的干预措施,加强农村社区的生存链。
{"title":"Urban-rural disparities in out-of-hospital cardiac arrest outcomes: a nationwide Hungarian study","authors":"Ádám Pál-Jakab , Bettina Nagy , Boldizsár Kiss , György Pápai , Nora Boussoussou , Béla Merkely , Miklós Constantinovits , Gábor Csató , Péter Sótonyi , Brigitta Szilágyi , Endre Zima","doi":"10.1016/j.resplu.2025.101108","DOIUrl":"10.1016/j.resplu.2025.101108","url":null,"abstract":"<div><h3>Background</h3><div>Out-of-hospital cardiac arrest (OHCA) outcomes often differ between urban and rural settings, but comprehensive nationwide data from Central-Eastern Europe using uniform data collection and modern confounding control remain limited. We investigated urban–rural disparities in OHCA outcomes in Hungary.</div></div><div><h3>Methods</h3><div>We analysed 130,258 OHCA cases (2018–2023) from the Hungarian National Ambulance Service registry, classified as urban (70.1 %) or rural (29.9 %) using national administrative categories. The primary outcome was on-scene return of spontaneous circulation (ROSC). We performed univariable and multivariable logistic regression, propensity score matching (PSM) and continuous response-time modeling using natural cubic splines.</div></div><div><h3>Results</h3><div>The overall ROSC rate was 9.1 % (urban: 9.4 %, rural: 8.3 %, p < 0.001). After PSM, urban location remained significantly associated with higher survival (OR = 1.26, 95 % CI 1.20–1.32, p < 0.001). EMS response times were significantly longer in rural areas (median 14.9 vs 9.8 min, p < 0.001). Urban survival advantage was most pronounced in cases with shockable rhythms (OR = 1.57, 95 % CI 1.43–1.72), medical-witnessed arrests (OR = 1.31, 95 % CI 1.20–1.42), and response times ≤8 min (OR = 1.59, 95 % CI 1.44–1.76).</div></div><div><h3>Conclusions</h3><div>Significant urban–rural disparities in OHCA on-scene ROSC persist even after accounting for patient and arrest characteristics. These findings highlight the need for targeted interventions to strengthen the Chain of Survival in rural communities.</div></div>","PeriodicalId":94192,"journal":{"name":"Resuscitation plus","volume":"26 ","pages":"Article 101108"},"PeriodicalIF":2.4,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145266559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
To evaluate the impact of physician staff turnover on outcomes of out-of-hospital cardiac arrest (OHCA) patients, with a particular focus on those treated with extracorporeal cardiopulmonary resuscitation (ECPR).
Methods
We conducted a nationwide retrospective cohort study using data from the Japanese Association for Acute Medicine OHCA Registry (2014–2022). Adult patients with cardiac arrest upon hospital arrival, including those who received ECPR, were analyzed. Patients were categorized by admission period: late March (18–31 March) and early April (1–14 April), corresponding to the annual physician turnover period in Japan. The primary outcome was 30-day survival. Multivariable logistic regression analysis was performed for both the overall OHCA cohort and the ECPR-treated cohort, adjusting for age, bystander CPR, initial rhythm at hospital arrival, and time from emergency call to hospital arrival.
Results
The final cohort comprised 6036 OHCA patients, of whom 187 received ECPR. In the overall OHCA cohort, no significant difference in 30-day survival was observed between early April and late March. However, among ECPR patients, the 30-day survival rate was significantly higher in early April (36.1 %) than in late March (21.2 %) (p = 0.035), with an adjusted odds ratio of 2.28 (95 % confidence interval: 1.03–5.16; p = 0.044).
Conclusions
While the physician turnover period had no discernible impact on outcomes in the overall OHCA population, it was significantly associated with improved survival among ECPR-treated patients. These findings suggest that ECPR may benefit from institutional preparedness during staff transition, but should be interpreted cautiously given the study limitations.
{"title":"Impact of staff turnover on extracorporeal cardiopulmonary resuscitation in out-of-hospital cardiac arrest patients: a nationwide registry-based analysis in Japan","authors":"Kazuya Kikutani, Mitsuaki Nishikimi, Shinichiro Ohshimo, Nobuaki Shime","doi":"10.1016/j.resplu.2025.101107","DOIUrl":"10.1016/j.resplu.2025.101107","url":null,"abstract":"<div><h3>Aim</h3><div>To evaluate the impact of physician staff turnover on outcomes of out-of-hospital cardiac arrest (OHCA) patients, with a particular focus on those treated with extracorporeal cardiopulmonary resuscitation (ECPR).</div></div><div><h3>Methods</h3><div>We conducted a nationwide retrospective cohort study using data from the Japanese Association for Acute Medicine OHCA Registry (2014–2022). Adult patients with cardiac arrest upon hospital arrival, including those who received ECPR, were analyzed. Patients were categorized by admission period: late March (18–31 March) and early April (1–14 April), corresponding to the annual physician turnover period in Japan. The primary outcome was 30-day survival. Multivariable logistic regression analysis was performed for both the overall OHCA cohort and the ECPR-treated cohort, adjusting for age, bystander CPR, initial rhythm at hospital arrival, and time from emergency call to hospital arrival.</div></div><div><h3>Results</h3><div>The final cohort comprised 6036 OHCA patients, of whom 187 received ECPR. In the overall OHCA cohort, no significant difference in 30-day survival was observed between early April and late March. However, among ECPR patients, the 30-day survival rate was significantly higher in early April (36.1 %) than in late March (21.2 %) (p = 0.035), with an adjusted odds ratio of 2.28 (95 % confidence interval: 1.03–5.16; p = 0.044).</div></div><div><h3>Conclusions</h3><div>While the physician turnover period had no discernible impact on outcomes in the overall OHCA population, it was significantly associated with improved survival among ECPR-treated patients. These findings suggest that ECPR may benefit from institutional preparedness during staff transition, but should be interpreted cautiously given the study limitations.</div></div>","PeriodicalId":94192,"journal":{"name":"Resuscitation plus","volume":"26 ","pages":"Article 101107"},"PeriodicalIF":2.4,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145227044","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}