Correlating Simulation Training and Assessment With Clinical Performance: A Feasibility Study.

OBJECTIVE: Simulation education and assessment are increasingly used in prehospital curriculums. The objective of this study was to assess the challenges and feasibility of correlating evaluation data from an airway management simulation assessment with clinical performance. METHODS: This study was undertaken in Ontario, the most populous province in Canada, where 13 bases are distributed in geographically diverse areas, from urban to rural and remote locations. This is a retrospective cohort study of paramedics who had completed simulation education and assessment in rapid sequence intubation. Logistic regression was used to assess for correlation between assessment scores (ie, the global score and the overall score and the definitive airway sans hypoxia/hypotension on the first attempt [DASH-1A] success in the field). RESULTS: DASH-1A success when grouped by base varied from 25% to 100%. The odds of DASH-1A success increased for paramedics who had a higher overall score (odds ratio [OR]: 1.03; 95% confidence interval [CI], 0.96-1.11) and for paramedics who had a higher global rating (OR: 1.27; CI, 0.73-2.21) when accounting for base intubation frequency. The odds of DASH-1A success increased for paramedics who had a higher overall score (OR: 1.01; CI, 0.93-1.09) and decreased for paramedics who had a higher global rating (OR: 0.96; CI, 0.47-1.96) when accounting for base geography. CONCLUSION: Although this study lacked a sample size large enough to draw conclusions, it provides a foundation and areas to improve in future work exploring the relationship between simulation assessments and clinical performance.

Enhancing patient safety in trauma: Understanding adverse events, assessment tools, and the role of trauma video review.

OBJECTIVES: This study aimed to investigate adverse events (AEs) in trauma resuscitation, evaluate contributing factors, and assess methods, such as trauma video review (TVR), to mitigate AEs. BACKGROUND: Trauma remains a leading cause of global mortality and morbidity, necessitating effective trauma care. Despite progress, AEs during trauma resuscitation persist, impacting patient outcomes and the healthcare system. Identifying and analyzing AEs and their determinants are crucial for improving trauma care. METHODS: This narrative review explored the definition, identification, and assessment of AEs associated with trauma resuscitation within the trauma system. It includes various studies and assessment tools such as STAT Taxonomy and T-NOTECHs. Additionally, it assessed the role of TVR in detecting AEs and strategies to enhance patient safety. CONCLUSION: Integrated with standardized tools, TVR shows promise for identifying AEs. Challenges include ensuring reporting consistency and integrating approaches into existing protocols. Future research should prioritize linking trauma team performance to patient outcomes, and develop sustainable TVR programs to enhance patient safety.

Field trauma triage criteria associated with need for dedicated trauma center care: a single-center retrospective cohort study.

INTRODUCTION: Direct transport from the scene of injury to a trauma centre reduces saves lives. In Ontario, paramedics use the field trauma triage standard (FTTS) to determine if a patient meets trauma bypass criteria. Recent studies have questioned the efficacy of the FTTS in identifying severely injured patients. The objective of this study was to determine the predictive performance of the FTTS on the need for trauma center care in patients who were transported to a trauma center. METHODS: This was a single-center health records study of patients transported by ambulance directly to a level 1 trauma center. Hospital based trauma center need and injury severity score-based need were defined. Bivariate associations with one or more FTTS criteria were tested using the Wilcoxon two-sample test for continuous variables, and the Chi-square or Fisher's exact test for categorical indicators. The sensitivity and specificity of each category of the FTTS were calculated. RESULTS: There were 1427 patients included in the study, with 76% men, mean age of 40, and 76% had a blunt mechanism. The overall sensitivity and specificity of the FTTS was 90.9% and 20.8% for hospital-based need and 91.6% and 20.3 for injury severity need. The most sensitive variable for hospital-based need was physiologic criteria (53.7). Mechanism of injury was the most sensitive criteria for injury severity need (54.8). Physiological criteria had the highest association with hospital-based and injury severity need (adjusted odds ratios 7.5 [95% CI 5.8-9.8] and 5.1 [95% CI 3.9-6.7]). CONCLUSIONS: The FTTS has fair performance in identifying the need for hospital-based and injury severity need. Systolic blood pressure less than 90 mmHg, Glasgow Coma Scale (motor) less than 6, and falls greater than 6 m were most predictive of trauma center need. Improving prehospital trauma triage is critical to ensure timely transport to a trauma centre.

RéSUMé: INTRODUCTION: Le transport direct de la scène de la blessure à un centre de traumatologie permet de sauver des vies. En Ontario, les ambulanciers paramédicaux utilisent la norme de triage des traumatismes sur le terrain (FTTS) pour déterminer si un patient répond aux critères de pontage traumatique. Des études récentes ont remis en question l'efficacité du FTTS dans l'identification des patients gravement blessés. L'objectif de cette étude était de déterminer la performance prédictive du FTTS sur le besoin de soins en centre de traumatologie chez les patients qui ont été transportés dans un centre de traumatologie. MéTHODES: Il s'agissait d'une étude des dossiers médicaux d'un seul centre portant sur des patients transportés par ambulance directement à un centre de traumatologie de niveau 1. Les besoins des centres de traumatologie hospitaliers et les besoins basés sur le score de gravité des blessures ont été définis. Les associations bivariées avec un ou plusieurs critères FTTS ont été testées à l'aide du test à deux échantillons de Wilcoxon pour les variables continues et du test de Fisher pour les indicateurs catégoriels. La sensibilité et la spécificité de chaque catégorie du FTTS ont été calculées. RéSULTATS: Il y avait 1427 patients inclus dans l'étude, avec 76% d'hommes, âge moyen de 40, et 76% avaient un mécanisme émoussé. La sensibilité et la spécificité globales du FTTS étaient de 90,9 % et de 20,8 % pour les besoins hospitaliers et de 91,6 % et de 20,3 % pour les besoins de gravité des blessures. La variable la plus sensible pour les besoins hospitaliers était les critères physiologiques (53,7). Le mécanisme de blessure était le critère le plus sensible pour le besoin de gravité de la blessure (54,8). Les critères physiologiques étaient les plus associés aux besoins hospitaliers et aux besoins en matière de gravité des blessures (rapports de cotes ajustés de 7,5 [IC à 95 % 5,8-9,8] et 5,1 [IC à 95 % 3,9-6,7]). CONCLUSION: Le FTTS a un rendement équitable pour ce qui est de déterminer le besoin de soins hospitaliers et de gravité des blessures. La pression artérielle systolique inférieure à 90mmHg, l'échelle de coma de Glasgow (moteur) inférieure à 6 et les chutes supérieures à 6m étaient les plus prédictives des besoins du centre de traumatologie. L'amélioration du triage des traumatismes avant l'hospitalisation est essentielle pour assurer un transport rapide vers un centre de traumatologie.

Use of Fixed Wing Modified Scene Air Ambulance Responses for Injured Patients in Northern Ontario: A Pilot Study.

OBJECTIVE: Timely access to a lead trauma hospital (LTH) saves lives; however, the vast geography of Northern Ontario creates a barrier to equitable access to an LTH. Paramedics in Ontario follow the field trauma triage standard (FTTS) to identify which patients should be directly brought to an LTH. A pilot project was launched using a fixed wing modified scene response (MSR) to transport patients from Northern Ontario who met the FTTS directly to an LTH. This study aimed to 1) explore the impact of the fixed wing MSR pilot program on the time to LTH arrival for injured patients in Northern Ontario compared with the traditional interfacility transfer (IFT) process and 2) determine the frequency and specific FTTS criteria that were fulfilled. METHODS: This was a retrospective cohort study of injured patients in Northern Ontario who were emergently transported to an LTH by the provincial air ambulance service between January 2016 and October 2021. Electronic patient care records were manually reviewed, and patient cases were grouped by their sending and receiving facilities to evaluate time differences between MSR and IFT. RESULTS: For same-distance transports, the average time from injury to trauma center arrival was reduced with MSR (292.8 minutes) compared with IFT (507.8 minutes), with a mean difference of 130.3 minutes. All MSR cases and 90% of IFT cases met at least 1 FTTS criterion. CONCLUSION: Fixed wing MSR improves access to timely definitive care for injured patients in Northern Ontario, and all patients transported in this pilot project met the trauma bypass criteria.

Machine learning in the prediction of massive transfusion in trauma: a retrospective analysis as a proof-of-concept.

PURPOSE: Early administration and protocolization of massive hemorrhage protocols (MHP) has been associated with decreases in mortality, multiorgan system failure, and number of blood products used. Various prediction tools have been developed for the initiation of MHP, but no single tool has demonstrated strong prediction with early clinical data. We sought to develop a massive transfusion prediction model using machine learning and early clinical data. METHODS: Using the National Trauma Data Bank from 2013 to 2018, we included severely injured trauma patients and extracted clinical features available from the pre-hospital and emergency department. We subsequently balanced our dataset and used the Boruta algorithm to determine feature selection. Massive transfusion was defined as five units at 4 h and ten units at 24 h. Six machine learning models were trained on the balanced dataset and tested on the original. RESULTS: A total of 326,758 patients met our inclusion with 18,871 (5.8%) requiring massive transfusion. Emergency department models demonstrated strong performance characteristics with mean areas under the receiver-operating characteristic curve of 0.83. Extreme gradient boost modeling slightly outperformed and demonstrated adequate predictive performance with pre-hospital data only, as well as 4-h transfusion thresholds. CONCLUSIONS: We demonstrate the use of machine learning in developing an accurate prediction model for massive transfusion in trauma patients using early clinical data. This research demonstrates the potential utility of artificial intelligence as a clinical decision support tool.

The Role of Paramedics in Disclosure of Patient Safety Incidents: A Mixed Methods Study.

OBJECTIVE: Critical care transport is a high-risk environment ripe for patient safety incidents (PSIs). Disclosure is the process by which a PSI is communicated to a patient or substitute decision maker. Little is known on paramedic perceptions on disclosure PSIs. This study evaluated the impact of a disclosure training program on the perceptions of paramedics on disclosing PSIs. METHODS: This was a before-and-after mixed methods survey study on paramedic disclosure training at Ornge, the provincial critical care transport organization for Ontario, Canada. A paramedic disclosure training program was implemented at Ornge between 2020 and 2022. All paramedics were eligible for participation through pre- and posttraining surveys. RESULTS: In total, 54 and 69 paramedics completed the pretraining and posttraining surveys, respectively, representing 25% to 30% of all active paramedics. All of the paramedics (100%) expressed a moral and professional responsibility to disclose PSIs. All paramedics felt disclosure training was somewhat to extremely useful. After training, more paramedics felt comfortable disclosing PSIs, and more paramedics felt disclosure could occur at the time of transport. CONCLUSION: A training program on PSIs can improve paramedics' perceptions on disclosure. This study shows its feasible for paramedics to feel comfortable and participate in disclosure of PSIs within a critical care environment.

The Impact of Out-of-Hospital Time and Prehospital Intubation on Return of Spontaneous Circulation following Resuscitative Thoracotomy in Traumatic Cardiac Arrest.

INTRODUCTION: Resuscitative thoracotomy (RT) is a critical procedure performed in certain trauma patients in extremis, with extremely low survival rates. Currently, there is a paucity of data pertaining to prehospital variables and their predictive role in survival outcomes in traumatic cardiac arrest (TCA) patients requiring RT. The aim of the study was to determine the impact of prehospital intubation and out-of-hospital time (OOHT) on return of spontaneous circulation (ROSC) and survival in TCA requiring RT. METHODS: This was a retrospective cohort study of trauma patients presenting to two level-1 trauma centers, St. Michael's Hospital and Sunnybrook Health Sciences Center, in Toronto, Canada (January 1, 2005-December 31, 2020). Our exposures of interest were any prehospital intubation attempt and OOHT. Primary and secondary outcome measures were ROSC post-RT and survival to hospital discharge, respectively, and data analysis was performed using univariate logistic regression. RESULTS: A total of 195 patients were included, of which 86% were male, and the mean age was 33 years. ROSC and survival to hospital discharge were achieved in 30% and 5% of patients, respectively. Of those who survived to discharge, 89% sustained penetrating trauma. There was no association between OOHT and ROSC (OR = 1.00, 95% CI 0.97-1.03) or survival (OR = 0.99, 95% CI 0.94-1.05). The odds of ROSC were lower in penetrating trauma in the presence of any prehospital intubation attempt (OR = 0.39, 95% CI 0.19-0.82, p = 0.01). ROSC was less likely among all patients with no prehospital signs of life (SOL) compared to those who had prehospital SOL (OR = 0.30, 95% CI 0.13-0.69, p < 0.01). CONCLUSIONS: There was a significant association between prehospital intubation and lower likelihoods of ROSC in the penetrating TCA population requiring RT, as well as with the absence of prehospital SOL in all patients. OOHT did not appear to significantly impact ROSC or survival.

Reliability of the safety threats and adverse events in trauma (STAT) taxonomy using trauma video review.

PURPOSE: The STAT (Safety Threats and Adverse Events in Trauma) taxonomy was developed through expert consensus, and groups 65 identified trauma resuscitation adverse events (AEs) into nine distinct categories. It provides a framework for standardized analysis of trauma resuscitations and creates a foundation for targeted quality improvement and patient safety initiatives. This study aims to evaluate the reliability of the STAT taxonomy in identifying AEs during video-recorded trauma resuscitations. METHODS: High-definition audiovisual data from 30 trauma resuscitations were reviewed. Videos were assessed and scored by four independent reviewers (two trainees and two staff). The STAT taxonomy was used to identify AEs based on binary responses: yes and no. Inter-rater reliability was calculated using Gwet's AC1. The frequencies of AEs were tallied and reported as counts and percentages. RESULTS: The most common AEs identified in the videos were failure to measure temperature (86.7%) and inadequate personal protective equipment (86.7%), followed by inability to use closed-loop communication (76.7%). The agreement on all AEs between reviewers was 0.94 (95% CI: 0.93-0.95). The Gwet's AC1 agreement across the 9 AE categories was paramedic handover (0.82), airway and breathing (0.99), circulation (0.95), assessment of injuries (0.91), management of injuries (0.96), procedure-related (0.97), patient monitoring and IV access (0.99), disposition (0.98), team communication and dynamics (0.87). CONCLUSION: The STAT taxonomy demonstrated excellent inter-rater reliability between reviewers and can be used to identify AEs in video-recorded trauma resuscitations. These results provide a foundation for adapting video review to objectively quantify and assess AEs in the trauma bay.

A comparative analysis of current out-of-hospital transfusion protocols to expert recommendations.

Aim: This study aimed to compare current out-of-hospital transfusion (OHT) protocols in Canadian civilian critical care transport organizations (CCTO) to expert recommendations and explore the variability and potential benefits of standardizing OHT practices across Canada. Methods: A comprehensive cross-sectional study was conducted, encompassing all seven Canadian CCTOs that provide OHT. The study assessed adherence to expert recommendations and examined specific aspects of the transfusion process, such as indications for transfusion and cessation criteria. Results: The study found an 89% adherence to expert recommendations for OHT among Canadian CCTOs. It highlighted a strong alignment between current practices and recommendations, possibly attributed to collaborative frameworks like the CAN-PATT network. However, notable variability and ambiguity were observed in transfusion indications and cessation criteria. The study also emphasized the potential benefits of standardizing OHT practices, such as improved policy formulation, better interpretation of emerging literature, and evaluation of OHT efficacy. Conclusion: This cross-sectional study assessed how Canadian CCTOs implement OHT practices compared to expert-recommended practices. The findings underscore the importance of structured protocols in trauma management. Given the consistency in OHT protocol adoption and the comprehensive approach across CCTOs, there's a solid foundation for managing trauma patients in prehospital and transport settings across Canada. As OHT practices continue to evolve, sustained efforts are vital to refine, adapt, and elevate patient care standards in trauma management.

Current state of technical transfusion medicine practice for out-of-hospital blood transfusion in Canada.

BACKGROUND AND OBJECTIVES: Canadian out-of-hospital blood transfusion programmes (OHBTPs) are emerging, to improve outcomes of trauma patients by providing pre-hospital transfusion from the scene of injury, given prolonged transport times. Literature is lacking to guide its implementation. Thus, we sought to gather technical transfusion medicine (TM)-specific practices across Canadian OHBTPs. MATERIALS AND METHODS: A survey was sent to TM representatives of Canadian OHBTPs from November 2021 to March 2022. Data regarding transport, packaging, blood components and inventory management were included and reported descriptively. Only practices involving Blood on Board programme components for emergency use were included. RESULTS: OHBTPs focus on helicopter emergency medical service programmes, with some supplying fixed-wing aircraft and ground ambulances. All provide 1-3 coolers with 2 units of O RhD/Kell-negative red blood cells (RBCs) per cooler, with British Columbia trialling coolers with 2 units of pre-thawed group A plasma. Inventory exchanges are scheduled and blood components are returned to TM inventory using visual inspection and internal temperature data logger readings. Coolers are validated to storage durations ranging from 72 to 124 h. All programmes audit to manage wastage, though there is no consensus on appropriate benchmarks. All programmes have a process for documenting units issued, reconciliation after transfusion and for transfusion reaction reporting; however, training programmes vary. Common considerations included storage during extreme temperature environments, O-negative RBC stewardship, recipient notification, traceability, clinical practice guidelines co-reviewed by TM and a common audit framework. CONCLUSION: OHBTPs have many similarities throughout Canada, where harmonization may assist in further developing standards, leveraging best practice and national coordination.

Overcoming distance: an exploration of current practices of government and charity-funded critical care transport and retrieval organizations.

BACKGROUND: For critically ill and injured patients, timely access to definitive care is associated with a reduction in avoidable mortality. Access to definitive care is significantly affected by geographic remoteness. To overcome this disparity, a robust critical care transport (CCT) or retrieval system is essential to support the equity of care and overcome the tyranny of distance. While critical care transport or retrieval systems have evolved over the years, there is no universally accepted system or standard, which has led to considerable variation in practices. The objective of this mixed-methods study was to identify and explore the current clinical, operational, and educational practices of government and charity-funded critical care transport and retrieval organizations operating across access- and weather- challenged geography. METHODS: This study utilized a mixed-methods approach comprising a rapid review of the literature and semi-structured interviews with identified subject matter experts (SME). RESULTS: A total of 44 articles and 14 interviews with SMEs from six different countries, 12 different services/systems, and seven operational roles, including clinicians (physician, paramedic, and nurse), educator, quality improvement, clinical governance, clinical informatics and research, operations manager, and medical director were included in the narrative analysis. The study identified several themes including deployment, crew composition, selection and education, clinical governance, quality assurance and quality improvement and research. CONCLUSION: This mixed-methods study underscores the paucity of literature describing current clinical, operational, and educational practices of government or charity-funded CCT or retrieval programs operating across access- and weather- challenged geography. While many common themes were identified including clearly defined mission profiles, use of dedicated or specialized transport teams, central coordination, rigorous selection processes, service-sponsored graduate education, and strong clinical governance, there is little consensus and considerable variation in current practices. Further research is needed to identify and harmonize best practices within the CCT and retrieval environments.

Outcomes of Patients Transported in the Prone Position to a Regional Extracorporeal Membrane Oxygenation Center: A Retrospective Cohort Study.

Prone positioning is associated with improved mortality in patients with moderate/severe acute respiratory distress syndrome (ARDS) and has been increasingly used throughout the COVID-19 pandemic. In patients with refractory hypoxemia, transfer to an extracorporeal membrane oxygenation (ECMO) center may improve outcome but may be challenging due to severely compromised gas exchange. Transport of these patients in prone position may be advantageous; however, there is a paucity of data on their outcomes. OBJECTIVES: The primary objective of this retrospective cohort study was to describe the early outcomes of ARDS patients transported in prone position for evaluation at a regional ECMO center. A secondary objective was to examine the safety of their transport in the prone position. DESIGN: Retrospective cohort study. SETTING: This study used patient charts from Ornge and Toronto General Hospital in Ontario, Canada, between February 1, 2020, and November 31, 2021. PARTICIPANTS: Patient with ARDS transported in the prone position for ECMO evaluation to Toronto General Hospital. MAIN OUTCOMES AND MEASURES: Descriptive analysis of patients transported in the prone position and their outcomes. RESULTS: One hundred fifteen patients were included. Seventy-two received ECMO (63%) and 51 died (44%) with ARDS and sepsis as the most common listed causes of death. Patients were transported primarily for COVID-related indications (93%). Few patients required additional analgesia (8%), vasopressors (4%), or experienced clinically relevant desaturation during transport (2%). CONCLUSIONS AND RELEVANCE: This cohort of patients with severe ARDS transported in prone position had outcomes ranging from similar to better compared with existing literature. Prone transport was performed safely with few complications or escalation in treatments. Prone transport to an ECMO center should be regarded as safe and potentially beneficial for patients with ARDS and refractory hypoxemia.

Development of a national out-of-hospital transfusion protocol: a modified RAND Delphi study.

BACKGROUND: Early resuscitation with blood components or products is emerging as best practice in selected patients with trauma and medical patients; as a result, out-of-hospital transfusion (OHT) programs are being developed based on limited and often conflicting evidence. This study aimed to provide guidance to Canadian critical care transport organizations on the development of OHT protocols. METHODS: The study period was July 2021 to June 2022. We used a modified RAND Delphi process to achieve consensus on statements created by the study team guiding various aspects of OHT in the context of critical care transport. Purposive sampling ensured representative distribution of participants in regard to geography and relevant clinical specialties. We conducted 2 written survey Delphi rounds, followed by a virtual panel discussion (round 3). Consensus was defined as a median score of at least 6 on a Likert scale ranging from 1 ("Definitely should not include") to 7 ("Definitely should include"). Statements that did not achieve consensus in the first 2 rounds were discussed and voted on during the panel discussion. RESULTS: Seventeen subject experts participated in the study, all of whom completed the 3 Delphi rounds. After the study process was completed, a total of 39 statements were agreed on, covering the following domains: general oversight and clinical governance, storage and transport of blood components and products, initiation of OHT, types of blood components and products, delivery and monitoring of OHT, indications for and use of hemostatic adjuncts, and resuscitation targets of OHT. INTERPRETATION: This expert consensus document provides guidance on OHT best practices. The consensus statements should support efficient and safe OHT in national and international critical care transport programs.

The effect of a multi-faceted quality improvement program on paramedic intubation success in the critical care transport environment: a before-and-after study.

INTRODUCTION: Endotracheal intubation (ETI) is an infrequent but key component of prehospital and retrieval medicine. Common measures of quality of ETI are the first pass success rates (FPS) and ETI on the first attempt without occurrence of hypoxia or hypotension (DASH-1A). We present the results of a multi-faceted quality improvement program (QIP) on paramedic FPS and DASH-1A rates in a large regional critical care transport organization. METHODS: We conducted a retrospective database analysis, comparing FPS and DASH-1A rates before and after implementation of the QIP. We included all patients undergoing advanced airway management with a first strategy of ETI during the time period from January 2016 to December 2021. RESULTS: 484 patients met the inclusion criteria during the study period. Overall, the first pass intubation success (FPS) rate was 72% (350/484). There was an increase in FPS from the pre-intervention period (60%, 86/144) to the post-intervention period (86%, 148/173), p < 0.001. DASH-1A success rates improved from 45% (55/122) during the pre-intervention period to 55% (84/153) but this difference did not meet pre-defined statistical significance (p = 0.1). On univariate analysis, factors associated with improved FPS rates were the use of video-laryngoscope (VL), neuromuscular blockage, and intubation inside a healthcare facility. CONCLUSIONS: A multi-faceted advanced airway management QIP resulted in increased FPS intubation rates and a non-significant improvement in DASH-1A rates. A combination of modern equipment, targeted training, standardization and ongoing clinical governance is required to achieve and maintain safe intubation by paramedics in the prehospital and retrieval environment.

A descriptive analysis of the Canadian prehospital and transport transfusion (CAN-PATT) network.

Objective: Out-of-hospital blood transfusion (OHBT) is becoming increasingly common across the prehospital environment, yet there is significant variability in OHBT practices. The Canadian Prehospital and Transport Transfusion (CAN-PATT) network was established to collaborate, standardize, and evaluate the effectiveness of out-of-hospital blood transfusion (OHBT) across Canada. The objectives of this study are to describe the setting and organizational characteristics of CAN-PATT member organizations and to provide a cross-sectional examination of the current OHBT practices of CAN-PATT organizations. Methods: This was a cross-sectional examination of all six critical care transport organizations that are involved in CAN-PATT network. Surveys were sent to identified leads from each organization. The survey focused on three main areas of interest: 1) critical care transport organizational service and coverage, 2) provider, and crew configurations, and 3) OHBT transfusion practices. Results: All six surveys were completed and returned. There are a total of 30 critical care transport bases (19 rotor-wing, 20 fixed-wing and 6 land) across Canada and 11 bases have a blood-on-board program. Crew configurations very between organizations as either dual paramedic or paramedic/nurse teams. Median transport times range from 30 to 46 minutes for rotor-wing assets and 64 to 90 minutes for fixed-wing assets. Half of the CAN-PATT organizations started their out-of-hospital blood transfusion programs within the last three years. Most organizations carry at least two units of O-negative, K-negative red blood cells and some organizations also carry group A thawed plasma, fibrinogen concentrate and/or prothrombin complex concentrate. All organizations advocate for early administration of tranexamic acid for injured patients suspected of bleeding. All organizations return un-transfused blood components to their local transfusion medicine laboratory within a predefined timeframe to reduce wastage. Conclusions: Variations in OHBT practices were identified and we have suggested considerations for standardization of transfusion practices and patient care as it relates to OHBT. This standardization will also enable a robust means of data collection to study and optimize outcomes of patients receiving OHBT. A fulsome description of the participating organizations within CAN-PATT should enhance interpretation of future OHBT studies that will be conducted by this network.

A system in crisis: exploring how recent emergency department closures influence potential access to emergency care in Ontario.

OBJECTIVES: Access to emergency medical care in Ontario has been under stress, mainly due to a lack of human resources (staffing of nurses and doctors). Over the past year, several emergency departments in Ontario have closed. Some of these closures are nightly, while others have closed for weeks at a time, leaving Ontario residents without access to emergency medical care which can lead to poor or more severe outcomes. The purpose of this paper was to examine how closures of ED's in Ontario have influenced potential access to emergency medical care. METHODS: We performed population-level geographic information systems (GIS)-based analysis of potential access to ED hospitals in Ontario. The number of people with access to an ED was calculated when all ED's in Ontario were open, then recalculated with the 14 ED closures. Access was defined by ground travel with 30 min, 45 min, and 60 min travel times used for analysis. Differences in the number of people at the census block level who potentially lost access were compiled and examined by census subdivision. RESULTS: If all 14 ED's had closed at the same time, there would be 35,808 people at 30 min, 15,018 at 45 min, and 12,131 at 60 min travel times in Ontario who lost access to ED care. Certain areas of the province saw more significant decreases in ED access. At 45 min travel times, nearly 2000 people in Central Frontenac lost access (44% of population), while 7298 people in Cochrane (North Part) lost access (20% of population). CONCLUSIONS: ED closures have led to decreases in potential access to emergency care for predominantly rural populations. Health human resource recovery strategies must focus on areas where lack of overlap exists.

RéSUMé: OBJECTIFS: L'accès aux soins médicaux d'urgence en Ontario a été mis à mal, principalement en raison d'un manque de ressources humaines (dotation en personnel infirmier et en médecins). Au cours de la dernière année, plusieurs services d'urgence de l'Ontario ont fermé leurs portes. Certaines de ces fermetures ont lieu chaque nuit, tandis que d'autres sont fermées pendant des semaines, laissant les résidents de l'Ontario sans accès aux soins médicaux d'urgence, ce qui peut entraîner des résultats médiocres ou plus graves. L'objectif de ce document est d'examiner comment les fermetures de services d'urgence en Ontario ont influencé l'accès potentiel aux soins médicaux d'urgence. MéTHODES: Nous avons effectué une analyse des systèmes d'information géographique (SIG) à l'échelle de la population sur l'accès potentiel aux urgences hospitalières en Ontario. Le nombre de personnes ayant accès à un service d'urgence a été calculé lorsque tous les services d'urgence de l'Ontario étaient ouverts, puis recalculé en fonction des 14 fermetures de services d'urgence. L'accès a été défini par les déplacements terrestres, les temps de trajet de 30, 45 et 60 min étant utilisés pour l'analyse. Les différences dans le nombre de personnes au niveau de l'îlot de recensement qui ont potentiellement perdu l'accès ont été compilées et examinées par subdivision de recensement. RéSULTATS: Si les 14 urgences avaient fermé en même temps, 35 808 personnes à 30 min, 15 018 à 45 min et 12 131 à 60 min de déplacement en Ontario auraient perdu l'accès aux soins d'urgence. Certaines régions de la province ont connu des baisses plus importantes de l'accès aux urgences. À un temps de déplacement de 45 min, près de 2 000 personnes dans le centre de Frontenac ont perdu l'accès (44% de la population), tandis que 7 298 personnes à Cochrane (partie nord) ont perdu l'accès (20% de la population). CONCLUSIONS: : Les fermetures de services d'urgence ont entraîné une diminution de l'accès potentiel aux soins d'urgence pour les populations principalement rurales. Les stratégies de rétablissement des ressources humaines dans le secteur de la santé doivent se concentrer sur les domaines où il n'y a pas de chevauchement.

Predictors of Transfusion in Trauma and Their Utility in the Prehospital Environment: A Scoping Review.

Background: Hemorrhage is a leading cause of preventable mortality from trauma, necessitating resuscitation through blood product transfusions. Early and accurate identification of patients requiring transfusions in the prehospital setting may reduce delays in time to transfusion upon arrival to hospital, reducing mortality. The purpose of this study is to characterize existing literature on predictors of transfusion and analyze their utility in the prehospital context.Objectives: The objectives of this study are to characterize the existing quantity and quality of literature regarding predictor scores for transfusion in injured patients, and to analyze the utility of predictor scores for massive transfusions in the prehospital setting and identify prehospital predictor scores for future research.Methods: A search strategy was developed in consultation with information specialists. A literature search of OVID MEDLINE from 1946 to the present was conducted for primary studies evaluating the predictive ability of scoring systems or single variables in predicting transfusion in all trauma settings.Results: Of the 5,824 studies identified, 5,784 studies underwent title and abstract screening, 94 studies underwent full text review, and 72 studies were included in the final review. We identified 16 single variables and 52 scoring systems for predicting transfusion. Among single predictor variables, fluids administered and systolic blood pressure had the highest reported sensitivity (100%) and specificity (89%) for massive transfusion protocol (MTP) activation, respectively. Among scoring systems for transfusion, the Shock Index and Modified Shock Index had the highest reported sensitivity (96%), whereas the Pre-arrival Model had the highest reported specificity (95%) for MTP activation. Overall, 20 scores were identified as applicable to the prehospital setting, 25 scores were identified as potentially applicable, and 7 scores were identified as not applicable.Conclusions: We identified an extensive list of predictive single variables, validated scoring systems, and derived models for massive transfusion, presented their properties, and identified those with potential utility in the prehospital setting. By further validating applicable scoring tools in the prehospital setting, we may begin to administer more timely transfusions in the trauma population.

Potential Access to Emergency General Surgical Care in Ontario.

Limited access to timely emergency general surgery (EGS) care is a probable driver of increased mortality and morbidity. Our objective was to estimate the portion of the Ontario population with potential access to 24/7 EGS care. Geographic information system-based network-analysis was used to model 15-, 30-, 45-, 60-, and 90-min land transport catchment areas for hospitals providing EGS care, 24/7 emergency department (ED) access, and/or 24/7 operating room (OR) access. The capabilities of hospitals to provide each service were derived from a prior survey. Population counts were based on 2016 census blocks, and the 2019 road network for Ontario was used to determine speed limits and driving restrictions. Ninety-six percent of the Ontario population (n = 12,933,892) lived within 30-min's driving time to a hospital that provides any EGS care. The availability of 24/7 EDs was somewhat more limited, with 95% (n = 12,821,747) having potential access at 30-min. Potential access to all factors, including 24/7 ORs, was only possible for 93% (n = 12,471,908) of people at 30-min. Populations with potential access were tightly clustered around metropolitan centers. Supplementation of 24/7 OR capabilities, particularly in centers with existing 24/7 ED infrastructure, is most likely to improve access without the need for new hospitals.

Canceled Air Ambulance Trauma Scene Calls: A Prospective Observational Study of Causes and Outcomes of Trauma Auto-launch Cancellations.

OBJECTIVE: Direct transport, occasionally by helicopter, to a trauma hospital for severely injured patients is associated with decreased mortality. This study sought to determine causes for air ambulance trauma response cancellations and secondarily to identify patients who underwent secondary transfer to a trauma center after a canceled air ambulance dispatch. METHODS: This prospective cohort study used administrative databases from August 2020 to August 2021 to collect data related to canceled trauma calls. Frequencies of cancellation reasons and transferred patients were summarized, and the estimated delay to trauma center arrival was calculated. Subsequent probabilistic matching was performed to identify patients who underwent secondary transfer. RESULTS: Of 3,232 trauma calls, 1,924 were canceled for reasons including the trauma bypass criteria not being met, patient brought to trauma center, and patient refused transfer. Of the 1,117 patients for whom an air ambulance was canceled because they did not meet the trauma bypass criteria, 184 (16.5%) were later transferred to a lead trauma hospital, with a median delay of 4.12 hours (interquartile range = 2.57-7.35 hours). CONCLUSIONS: Most scene call cancellations were due to patients not meeting the trauma bypass criteria; yet, 16.5% of these patients were later transported to a trauma center. Interventions are needed in education, adherence, and modification of the trauma bypass criteria.