Prehospital Patient Care Research Articles

Prehospital Care and In-hospital Mortality of Trauma Patients in Iran.

The aim of this study was to determine the effect of prehospital time and advanced trauma life support interventions for trauma patients transported to an Iranian Trauma Center. This study was a retrospective study of trauma victims presenting to a trauma center in central Iran by Emergency Medical Services (EMS) and hospitalized more than 24 hours. Demographic and injury characteristics were obtained, including accident location, damaged organs, injury mechanism, injury severity score, prehospital times (response, scene, and transport), interventions and in-hospital outcome. Two thousand patients were studied with an average age of 36.3 (SD = 20.8) years; 83.1% were male. One hundred twenty patients (6.1%) died during hospitalization. The mean response time, at scene time and transport time were 6.6 (SD = 3), 11.1 (SD = 5.2) and 12.8 (SD = 9.4), respectively. There was a significant association of longer transport time to worse outcome (P = .02). There was a trend for patients with transport times >10 minutes to die (OR: 0.8; 95% CI, 0.1-6.59). Advanced Life Support (ALS) interventions were applied for patients with severe injuries (Revised Trauma Score ⩽7) and ALS intervention was associated with more time on scene. There was a positive association of survival with ALS interventions applied in suburban areas (P = .001). In-hospital trauma mortality was more common for patients with severe injuries and long prehospital transport times. While more severely injured patients received ALS interventions and died, these interventions were associated with positive survival trends when conducted in suburban and out-of-city road locations with long transport times.

Identifying barriers and facilitators to ambulance service assessment and treatment of acute asthma: a focus group study.

BackgroundAcute asthma is a common reason for patients to seek care from ambulance services. Although better care of acute asthma can prevent avoidable morbidity and deaths, there has been little research into ambulance clinicians’ adherence to national guidelines for asthma assessment and management and how this might be improved. Our research aim was to explore paramedics’ attitudes, perceptions and beliefs about prehospital management of asthma, to identify barriers and facilitators to guideline adherence.MethodsWe conducted three focus group interviews of paramedics in a regional UK ambulance trust. We used framework analysis supported by NVivo 8 to code and analyse the data.ResultsSeventeen participants, including paramedics, advanced paramedics or paramedic operational managers at three geographical sites, contributed to the interviews. Analysis led to five themes: (1) guidelines should be made more relevant to ambulance service care; (2) there were barriers to assessment; (3) the approach needed to address conflicts between clinicians’ and patients’ expectations; (4) the complexity of ambulance service processes and equipment needed to be taken into account; (5) and finally there were opportunities for improved prehospital education, information, communication, support and care pathways for asthma.ConclusionsThis qualitative study provides insight into paramedics’ perceptions of the assessment and management of asthma, including why paramedics may not always follow guidelines for assessment or management of asthma. These findings provide opportunities to strengthen clinical support, patient communication, information transfer between professionals and pathways for prehospital care of patients with asthma.

Efficacy of prehospital spine and limb immobilization in multiple trauma patients.

Background:Injuries are a major cause of mortality and disability worldwide and are estimated to become the third leading cause of death by 2020. Most traffic deaths occur during the prehospital phase; consequently, prehospital trauma care has received considerable attention during the past decade. However, there is no study on the prehospital immobilization of spine and limbs in patients with multiple trauma in Iran.Objectives:This study aimed to investigate the epidemiology of trauma and the quality of limb and spine immobilization in patients with multiple trauma transferred to Shahid Beheshti Medical Center via emergency medical services (EMS).Patients and Methods:This cross-sectional study was conducted in 2013. The study population consisted of all patients with multiple trauma who had been transferred by EMS to the Central Trauma Department of the Shahid Beheshti Medical Center, Kashan, Iran. The study used a checklist and we recruited a convenience sample of 400 patients with multiple trauma. Data were described by using frequency tables, central tendency measures, and variability indices. Moreover, we analyzed data using SPSS.Results:The study sample consisted of 301 (75.2%) males and 99 (24.8%) females. The most common mechanism of trauma was traffic injuries (87.25%). Motorcyclists constituted 52.25% of the road traffic injuries victims. Overall, the quality of immobilization was at an undesirable level in 95.8% of patients with spine and limbs injuries. A significant association was observed between the quality of spine and limbs immobilization and the EMS workers’ education level (P = 0.005).Conclusions:The quality of spine and limb immobilizations was undesirable in more than 90% of cases. Due to the importance of good spine and limb immobilization in patients with multiple trauma, prehospital EMS technicians should be retrained for proper immobilization in patients suspected of spine or limb injuries. Developing evidence-based protocols and strengthening the regulatory and supervisory system to improve quality of prehospital emergency care in patients with multiple trauma is recommended.

The use of telemedicine technology to support in pre-hospital patient care

Lack of accurate clinical information and availability to expertise at the incident scene can affect patient safety and outcome. The use of technology to capture, transmit and assess patient data and information can be used to ensure better patient outcome and more efficient use of resources. Telemedicine can also be of benefit for ED doctors to discuss emergency situations with paramedics, providing advice in terms of treatment, triage and referral to alternative medical facilities.

Effects of a standard operating procedure on prehospital emergency care of patients presenting with symptoms of the acute coronary syndrome

To determine whether a standard operating procedure (SOP) for prehospital management of patients with the acute coronary syndrome (ACS) improves the quality of patient care in terms of adherence to treatment guidelines of the European Society of Cardiology. Among a total of 1025 patient medical records collected from a period before and after the introduction of the SOP, 269 records included the working diagnosis of ACS and were then reviewed for guideline adherence. Most aspects of patient evaluation, monitoring, treatment, and hospital allocation were fairly guideline adherent (>70%) before the SOP was introduced and were not affected by the SOP. The percentage of cases in whom sublingual nitrate (55.2 vs. 66.7%) or intravenous morphine (26.9 vs. 43.0%) was administered without contraindications was higher after the SOP had been introduced. Therefore, the use of an SOP in prehospital emergency medicine can partly improve the adherence to guideline recommendations for the treatment of patients with ACS.

Paramedics Accurately Apply the Pediatric Assessment Triangle to Drive Management

Objective. To provide an evaluation of the Pediatric Assessment Triangle (PAT) as an assessment tool for use by paramedic providers in the prehospital care of pediatric patients. Methods. Paramedics from Los Angeles Fire Department (LAFD) received training in the Pediatric Education for Prehospital Professionals (PEPP) course, PAT study procedures, and completed training in applying the PAT to assess children 0–14 years of age. A convenience sample of LAFD paramedic assessments of the pediatric patients transported to 29 participating institutions, over an 18-month period ending July 2010, were eligible for inclusion. Patients who were not transported were excluded from the study, as were the assessments of children with special health-care needs (CSHCN). PAT Study Forms, emergency medical services (EMS) report forms, and emergency department (ED) and hospital charts were entered into a secure database. Two study investigators, blinded to paramedic PAT assessment, reviewed hospital charts and determined the category of illness or injury. Results. A total of 1,552 PAT Study Forms were collected. Overall, 1,168 of the patient (75%) assessments met inclusion criteria, were transported, and had all three data points (PAT Study Form, paramedic EMS report form, and ED/hospital chart) available for analysis. When paramedics used the PAT to identify abnormalities in the three arms of the triangle (PAT Paramedic Pattern) and applied that pattern to form a general impression (PAT Paramedic Impression), the agreement resulted in a κ coefficient of 0.93 [95% CI: 0.91–0.95]. The PAT paramedic impression was congruent with field management, as the majority of patients received consistent interventions with local EMS protocols. The PAT Paramedic Impression for instability demonstrated a sensitivity of 77.4% [95% CI: 72.6–81.5%], a specificity of 90.0% [95% CI: 87.1–91.5%] with a positive likelihood ratio (LR+) of 7.7 [95% CI: 5.9–9.1] and a negative likelihood ratio (LR-) of 0.3 [95% CI: 0.2–0.3]. Conclusion. The PAT is a rapid assessment tool that can be readily and reliably used by paramedics in the prehospital setting. The PAT should be used in conjunction with other assessments but can safely drive initial field management.

Epinephrine during cardiac arrest may worsen the outcome of resuscitated patients

Background: Epinephrine is widely used during pre-hospital care for out-of hospital cardiac arrest patients (OHCA). Although epinephrine can increase the likelihood of achieving successful return of spontaneous circulation (ROSC), the influence of this drug on recovery during the post-resuscitation phase is debatable. To address this question, we investigate the relationship between prehospital epinephrine use and functional survival among OHCA patients who achieved successful ROSC.

External validation of termination of resuscitation guidelines in the setting of intra-arrest cold saline, mechanical CPR, and comprehensive post resuscitation care

BackgroundThe development of advanced life support (ALS) termination of resuscitation (TOR) guidelines for out-of-hospital cardiac arrest (OHCA) seeks to improve the efficiency of scarce pre-hospital resources. However, as pre-hospital treatment for OHCA evolves and survival improves, these TOR guidelines must be reevaluated in the contemporary context of emergency medical services (EMS) providing access to advanced resuscitation care. MethodsRetrospective review of all adult (>18 years old), non-traumatic, OHCA patients (defined as patients with absence of pulse who received either CPR and/or defibrillation) treated by EMS in Richmond, VA, from January 1, 2009 to December 31, 2010. In addition to standard ALS, intra-arrest cold saline, mechanical CPR, and transportation to a comprehensive post-resuscitation center (CPRC) was provided. Patient treatment and outcomes were recorded via prehospital patient care reports and data were evaluated against previously established criteria for termination of resuscitation in an ALS EMS system. According to the aforementioned previously described criteria for TOR, patients meeting a single criterion for transport are recommended to be transported emergently to a comprehensive post-resuscitation care facility. Conversely, patients failing to meet any of the TOR criteria can be presumed to be expired without exception. Survival at 180 days was presumed when death could not be verified from publically reportable sources. ResultsOf the 322 OHCA patients enrolled, the majority were male (59%), unwitnessed (52%), received no bystander CPR (67%), and presented in a non-shockable initial rhythm (79%), with an average age of 62.5 years. Overall survival was 17%, 14%, 12%, and 11% at 7, 14, 30, and 180 days, respectively. Of the 75 patients for which TOR guidelines recommended termination, none survived yielding both 100% specificity (95% CI 100–92.8%) and positive predictive value (95% CI 100–94.1%). However, TOR guidelines recommended transport of 208 of the 283 patients who died within 30 days, resulting in a sensitivity of 26.5% (95% CI 34.5–23.4%). ConclusionThe TOR guidelines continue to have a reliable positive predictive value for death even in the setting of advanced EMS resuscitation methods and access to a CPRC. However, as the potential for survival from OHCA improves, the efficiency gained from their use is impacted greatly.

The effect of paramedic training on pre-hospital trauma care (EPPTC-study): a study protocol for a prospective semi-qualitative observational trial

BackgroundAccidents are the leading cause of death in adults prior to middle age. The care of severely injured patients is an interdisciplinary challenge. Limited evidence is available concerning pre-hospital trauma care training programs and the advantage of such programs for trauma patients. The effect on trauma care procedures or on the safety of emergency crews on the scene is limited; however, there is a high level of experience and expert opinion.MethodsI – Video-recorded case studies are the basis of an assessment tool and checklist being developed to verify the results of programs to train participants in the care of seriously injured patients, also known as “objective structured clinical examination” (OSCE). The timing, completeness and quality of the individual measures are assessed using appropriate scales. The evaluation of team communication and interaction will be analyzed with qualitative methods and quantified and verified by existing instruments (e.g. the Clinical Team Scale). The developed assessment tool is validated by several experts in the fields of trauma care, trauma research and medical education. II a) In a German emergency medical service, the subjective assessment of paramedics of their pre-hospital care of trauma patients is evaluated at three time points, namely before, immediately after and one year after training. b) The effect of a standardized course concept on the quality of documentation in actual field operations is determined based on three items relevant to patient safety before and after the course. c) The assessment tool will be used to assess the effect of a standardized course concept on procedures and team communication in pre-hospital trauma care using scenario-based case studies.DiscussionThis study explores the effect of training on paramedics. After successful study completion, further multicenter studies are conceivable, which would evaluate emergency-physician staffed teams. The influence on the patients and prehospital measures should be assessed based on a retrospective analysis of the emergency room data.Trials registrationGerman Clinical Trials Register, ID DRKS00004713.

Prehospital emergency care for patients with suspected hip fractures after falling – older patients' experiences

To describe and explain older patients' lived experiences of prehospital emergency care in cases of suspected hip fractures after falling. Falls among the elderly is an issue internationally and a public health problem that seems to be on the increase. In the emergency medical services, older people are frequent patients after having suffered a fall, but there is little information on how older patients experience prehospital emergency care in cases of suspected hip fractures after falling. Qualitative interview study. Ten older patients were interviewed. These depth interviews were tape-recorded, transcribed verbatim and analysed for meanings. The comprehensive understanding of the phenomenon is: 'Glad to have been rescued, despite bad experiences as well as good'. The older patient is offered care in an open and friendly atmosphere concurrently with feeling anxiety about the treatment. Intervention with streamlined care and treatment can thus simultaneously be beneficial as well as doing harm. Patients experience confusion and the need to ask questions about what really happened in the ambulance. Bad experiences remain unexplained. These findings are based on three themes with relevant subthemes: efficiency, concerned encounters and suffering from care. Our study shows that prehospital emergency care when hip fracture is suspected - from patients' point of view - is insufficient and unsatisfying. Prehospital emergency care for these vulnerable patients could be improved through more compassion being shown towards older patients' existential needs and their increased participation. Furthermore, alternative methods of prehospital pain relief need to be developed. Responsibility for patients' safety regarding pain relief is emphasised. Pain relief in the emergency medical services should be individualised. This development should focus on care that is already good and gradually eradicate compassionless care.

Improving Bariatric Patient Transport and Care with Simulation

IntroductionObesity is prevalent in the United States. Obese patients have physiologic differences from non-obese individuals. Not only does transport and maintenance of these patients require use of specialized equipment, but it also requires a distinct skill set and knowledge base. To date, there is no literature investigating simulation as a model for educating pre-hospital providers in the care of bariatric patients. The purpose of this study was to determine if a 3-hour educational course with simulation could improve paramedics’ knowledge and confidence of bariatric procedures and transport. This study also examined if prior experience with bariatric transport affected training outcomes.MethodsOur study took place in August 2012 during paramedic training sessions. Paramedics completed a pre- and post-test that assessed confidence and knowledge and provided information on previous experience. They had a 30-minute didactic and participated in 2 20-minute hands-on skills portions that reviewed procedural issues in bariatric patients, including airway procedures, peripheral venous and intraosseous access, and cardiopulmonary resuscitation. Study participants took part in one of two simulated patient encounters. Paramedics were challenged with treating emergent traumatic and/or medical conditions, as well as extricating and transporting bariatric patients. Each group underwent a debriefing of the scenario immediately following their case. We measured confidence using a 5-point Likert-type response scale ranging from 1 (strongly disagree) to 5 (strongly agree) on a 7-item questionnaire. We assessed knowledge with 12 multiple choice questions. Paired-sample t-tests were used to compare pre- and post-simulation confidence and knowledge with a significance level of p≤0.05. We used analysis of covariance to examine the effect of previous experiences on pre-and post-educational activity confidence and knowledge with a significance level of p ≤0.05. Proportions and 95% confidence intervals are presented as appropriate. We determined the magnitude of significant pre-post differences with Cohen’s d. We assessed scale reliability using Cronbach’s alpha and was found to be reliable with scores of 0.83 and 0.88 across pre- and post-test responses, respectively.ResultsParticipants exhibited a significant increase in confidence in performing procedures (p<0.01) and knowledge of bariatric patient management (p<0.001) after the simulation. The current study also found an increase in knowledge of transport, vascular access/circulation and airway management (p<0.001). Participant background showed no effects on these changes.ConclusionThis study suggests that simulation paired with a didactic is an effective method of education for paramedics caring for and transporting bariatric patients. The data show a significant increase in knowledge and confidence with a 3-hour training session, irrespective of previous training or experience with bariatric patients. This is the first study of its kind to apply simulation training for the pre-hospital care of bariatric patients.

Triage in the Tower of Babel

Minority pediatric populations have higher rates of emergency medical services use than the general pediatric population, and prior studies have documented that limited-English proficiency patients are more likely to undergo invasive procedures, require more resources, and be admitted once they arrive in the emergency department. Furthermore, limited-English proficiency patients may be particularly vulnerable because of immigration or political concerns. In this case report, we describe an infant with breath-holding spells for whom a language barrier in the prehospital setting resulted in an escalation of care to the highest level of trauma team activation. This infant underwent unnecessary, costly, and harmful interventions because of a lack of interpreter services. In a discussion of the legal, ethical, and medical implications of this case, we conclude that further investigation into prehospital strategies for overcoming language barriers is required to provide optimal prehospital care for pediatric patients.

Organization of prehospital medical care for patients with cerebral stroke

The main tasks of prehospital medical care are to make a correct diagnosis of stroke and to minimize patient transportation delays. Stroke is a medical emergency so all patients with suspected stroke must be admitted by a first arrived ambulance team to a specialized neurology unit for stroke patients. Most rapidly transporting the patient to hospital, as well as reducing the time of examination to verify the pattern of stroke are a guarantee of successful thrombolytic therapy that is the most effective treatment for ischemic stroke. Substantially reducing the time of in-hospital transfers (the so-called door-to-needle time) allows stroke patients to be directly admitted to the around the clock computed tomography room, without being sent to the admission unit. Prehospital stroke treatment policy (basic therapy) is to correct the body’s vital functions and to maintain respiration, hemodynamics, and water-electrolyte balance and it can be performed without neuroimaging verification of the pattern of stroke. The application of current organizational, methodical, and educational approaches is useful in improving the quality of medical care for stroke patients, in enhancing the continuity between prehospital and hospital cares, and in promoting new effective technologies in stroke therapy.

Analysis of Management of Noninvasive Ventilation Support in Prehospital Care for COPD Patients and Short-term Outcome

SESSION TITLE: Respiratory Support Posters

Diagnosis of Stroke by Emergency Medical Dispatchers and Its Impact on the Prehospital Care of Patients

Emergency medical dispatchers represent the first line of communication with a patient, and their decision plays an important role in the prehospital care of stroke. We evaluated the rate and accuracy of stroke diagnosis by dispatchers and its influence in the prehospital care of potential stroke patients. We analyzed the 2009 National Emergency Medical Services Information System. Study population was based on the diagnosis of stroke made by emergency medical technicians (EMT). This was then divided in those coded as stroke/cerebrovascular accident versus others reported by dispatchers and compared with each other. In all, 67,844 cases were identified as stroke by EMT, but transportation time was available for 52,282 cases that represented the final cohort. Cases identified as stroke by dispatchers were 27,566 (52.7%). When this group compared with stroke cases not identified by dispatchers, we found that the mean age was significantly higher (71.2 versus 68.6 years, P<.0001); advanced life support was dispatched more frequently (84% versus 72.8%, P<.0001), dispatchers offered help and instructions to the caller more frequently, and they arrived at a facility at a shorter time (41.8 versus 49.8 minutes, P<0001). Sensitivity and specificity for the diagnosis of stroke by dispatchers were 34.61 and 99.46, respectively. Recognition of symptoms and diagnosis of a potential stroke by dispatchers positively affect the care of patients by decreasing the arrival time to a hospital and providing the highest level of prehospital care possible. Education is needed to increase dispatcher's detection of stroke cases.

Pre-hospital care of urban gunshot wound patients: a tale of two cities

Pre-hospital care of urban gunshot wound patients: a tale of two cities

진통 분만, 질출혈과 성폭행 환자에 대한 119구급대원의 병원전 응급처치 분석

Purpose: The purpose of this study is to provide basic data to improve prehospital emergency care for patients with labor pain, vaginal bleeding and rape experience by analyzing the reports of 119 emergency medical technicians. Methods: Data were prehospital reports of 190 patients having chief complaints of labor pain, vaginal bleeding and rape in Chungcheongnam-do from January 1, 2012 to December 31, 2012. Data were analyzed using SPSS 21.0 descriptive statistics and <TEX>$x^2$</TEX>-test. Results: From the 190 cases of labor pain, vaginal bleeding and rape, labor pain accounted for 57.9% including 75.5% of normal delivery; vaginal bleeding accounted for 35.8% including 26.5% of postpartum hemorrhage; and rape victims accounted for 6.3%. Cases with more than one vital sign accounted for 94.2%, but cases without primary assessment of the obstetrics and gynaecology accounted for 38.4% from gestation weeks, 78.0% from parity, and 87.4% from history taking relating to event. Patient care including emotional support was the first priority care accounted for 78.4% and 60% of care was keeping the patients warm. Conclusion : In order to handle various emergency situations properly, the records must be supplemented by obstetrical and gynaecological rape checklist and rape victims supporting system should be established.

Implementation of a Mechanical Chest Compression Device as Standard Equipment in a Large Metropolitan Ambulance Service

BackgroundWe will describe the implementation of the LUCAS™1 chest compression device as standard equipment in the treatment of cardiac arrest across a large ambulance service and provide descriptive data on device-treated arrests and provider experience during the initial 2 years of use. MethodsProvider training and deployment of 38 devices occurred in our 70-vehicle, 400-provider ambulance service within 3 months. A retrospective case series of device-eligible out-of-hospital cardiac arrests occurring between May 2008 and June 2010 was analyzed. Clinical data were extracted from an electronic prehospital patient care record and information on provider experience with the device was collected via online survey. ResultsLUCAS™1 was used in 79% of resuscitation attempts (498 of 631). Primary reasons for nonuse were resuscitation of limited duration and extreme body size. Return of spontaneous circulation (ROSC) was documented in 35% and 41% of device- and non-device-treated arrests, respectively (p = 0.31), but among arrests where time from arrival at patient to discontinuation of cardiopulmonary resuscitation was >5 min, the rates were 26% and 24%, respectively (p = 0.78). ConclusionsA large ambulance service in the United States initiated standard use of a mechanical compression device within 3 months. In an applied setting, the LUCAS™1 device fits most patients and was well received by prehospital providers. Resuscitation of limited duration due to early death or early ROSC frequently precludes device use, and this has important implications for evaluating the association between device use and ROSC in observational settings.

Developing a decision support system for geriatric patients in prehospital care

To develop a feasible and safe prehospital decision support system (DSS) for the emergency medical services (EMS), facilitating safe steering of geriatric patients to an optimal level of healthcare. The development process involves four consecutive steps. The first step was gathering data from patients transported by EMS, with the electronic patient care record, to retrospectively identify appropriate patient categories for steering. The second step was to allow a group of medical experts to give advice and suggestions for further development of the DSS. The third step was validation of the decision support tool and the fourth step was validation of the entire prehospital DSS in a pilot study. The patient categories relevant to steering were those medical conditions that the geriatric clinicians felt confident in receiving from the EMS. A prehospital DSS was then developed for these 11 medical conditions. The evaluation and validation of the DSS showed a high degree of compliance with the patients' final level of healthcare. The pilot study included 110 randomized patients; 33.9% were triaged to an alternative level of healthcare, that is geriatric care or primary care. No medical inaccuracies or secondary transports from alternative care to the hospital emergency department were identified. Using this prehospital DSS - developed for 11 medical conditions - the Swedish prehospital nurse can safely decide on the level of healthcare to which an elderly patient can be steered.

Update on prehospital emergency care of severe trauma patients

The prognosis of severe trauma patients is determined by the ability of a healthcare system to provide high intensity therapeutic treatment on the field and to transport patients as quickly as possible to the structure best suited to their condition. Direct admission to a specialized center (“trauma center”) reduces the mortality of the most severe trauma at 30 days and one year. Triage in a non-specialized hospital is a major risk of loss of chance and should be avoided whenever possible. Medical dispatching plays a major role in determining patient care. The establishment of a hospital care network is an important issue that is not formalized enough in France. The initial triage of severe trauma patients must be improved to avoid taking patients to hospitals that are not equipped to take care of them. For this purpose, the MGAP score can predict severity and help decide where to transport the patient. However, it does not help predict the need for urgent resuscitation procedures. Hemodynamic management is central to the care of hemorrhagic shock and severe head trauma. Transport helicopter with a physician on board has an important role to allow direct admission to a specialized center in geographical areas that are difficult to access.