Telemedicine in Prehospital Acute Stroke Care

A Smart Glass Telemedicine Application for Prehospital Communication: User-Centered Design Study

BACKGROUND

Smart glasses have emerged as a promising solution for enhancing communication and care coordination among distributed medical teams. While prior research has explored the feasibility of using smart glasses to improve prehospital communication between emergency medical service (EMS) providers and remote physicians, a research gap remains in understanding the specific requirements and needs of EMS providers for smart glass implementation.

OBJECTIVE

This study aims to iteratively design and evaluate a smart glass application tailored for prehospital communication by actively involving prospective users in the system design process.

METHODS

Grounded in participatory design, the study consisted of 2 phases of design requirement gathering, rapid prototyping, usability testing, and prototype refinement. In total, 43 distinct EMS providers with diverse backgrounds participated in this 2-year long iterative design process. All qualitative data (eg, transcribed interviews and discussions) were iteratively coded and analyzed by at least 2 researchers using thematic analysis. Quantitative data, such as System Usability Scale (SUS) scores and feature ratings, were analyzed using statistical methods.

RESULTS

Our research identified challenges in 2 essential prehospital communication activities: contacting online medical control (OLMC) physicians for medical guidance and notifying receiving hospital teams of incoming patients. The iterative design process led to the identification of 5 key features that could potentially address the identified challenges: video call functionality with OLMC physicians, call priority indication for expedited OLMC contact, direct communication with receiving hospitals, multimedia patient information sharing, and touchless interaction methods for operating the smart glasses. The SUS score for our system design improved from a mean of 74.3 (SD 11.3) in the first phase (classified as good usability) to 80.3 (SD 13.1) in the second phase (classified as excellent usability). This improvement, along with consistently high ratings for other aspects (eg, willingness to use and feature design), demonstrated continuous enhancement of the system's design across the 2 phases. Additionally, significant differences in SUS scores were observed between EMS providers in urban areas (median 85, IQR 76-94) and rural areas (median 72.5, IQR 66-83; Mann-Whitney U=43; P=.17), as well as between paramedics (median 72.5, IQR 70-80) and emergency medical technicians (median 85, IQR: 74-98; Mann-Whitney U=44.5; P=.13), suggesting that EMS providers in urban settings and those with less training in treating patients in critical conditions perceived the smart glass application as more useful and user-friendly. Finally, the study also identified several concerns regarding the adoption of the smart glass application, including technical limitations, environmental constraints, and potential barriers to workflow integration.

CONCLUSIONS

Using a participatory design approach, this study provided insights into designing user-friendly smart glasses that address the current challenges EMS providers face in dynamic prehospital settings.

Evaluating the Safety and Efficacy of Telemedicine Physician Assessments on a Mobile Stroke Unit: Protocol for a Prospective Open-Label Blinded End-Point Randomized Controlled Trial

BACKGROUND

Mobile stroke units have been shown to deliver faster patient care and improve clinical outcomes. However, costs associated with staffing limit their use to densely populated cities. Using the Melbourne mobile stroke unit, we aim to evaluate the safety, timeliness, and resource efficiency of a telemedicine model, where the neurologist assesses a patient remotely, via telemedicine, compared with an onboard neurologist model. We hypothesize that, without compromising patient safety, the telemedicine model will provide timely care and superior resource efficiency.

METHODS

Using a prospective, randomized, blinded end-point controlled design, 270 participants consecutively assessed on the Melbourne mobile stroke unit over ≈12 months will be assigned into 2 arms: (1) telemedicine neurologist assessment (intervention) versus (2) onboard assessment (comparator). Enrollment is based on prospectively designated randomized days of neurologist review onboard versus telemedicine. The primary outcome will be the odds that a randomly selected participant in the telemedicine arm will have a better outcome than a randomly selected participant in the onboard arm, measured using a desirability-of-outcome ranking, an outcome measure that includes, in order of importance: (1) safety, (2) scene-to-treatment-decision time metrics, and (3) resource usage. All participants within each arm will be compared with those in the other, resulting in a "win/tie/loss" distribution for telemedicine compared with the onboard model.

CONCLUSIONS

The study will establish whether use of a telemedicine neurologist delivers superior resource efficiency without compromising patient care. This would enable the broader use of mobile stroke units, particularly relevant to regions with limited access to neurologists, thus improving equity in access to time-critical, lifesaving stroke care.

REGISTRATION

URL: clinicaltrials.gov; Unique Identifier: NCT05991310.

Effect of teleconsultation on the application of thrombolytic therapy in stroke patients in the emergency department

INTRODUCTION

Recently, telemedicine has become a widely used method worldwide for the treatment of patients with acute ischemic stroke in hospitals where neurologists are unavailable. The purpose of this study was to determine the accuracy and reliability of treatment decisions made by remote neurologists via teleconference assisted by emergency physicians in acute stroke cases and to determine whether the use of teleconsultation would lead to any delays in assessment and treatment decisions.

METHODS

This single-center and prospective study was performed with 104 patients who met the inclusion criteria. Patients were concurrently assessed by a teleneurologist (TN) experienced in stroke and an on-site neurologist (OS-N). The TN performed their assessment via teleconference and assisted by an emergency physician for test results and physical examination. NIHSS (The National Institutes of Health Stroke Scale) scores, assessment times, treatment decisions by the two neurologists, and patient outcomes were recorded separately. The TN was asked to rate the quality of communication.

RESULTS

Of the 104 patients in the study, 59.6% (n = 62) were men and the median age was 66 (interquartile range = 56-78) years. The median duration of assessment by the OS-N was 30 (18-45) min and the median duration of assessment by the TN was 6 (5-8) min; the duration of assessment by the TN was significantly shorter (6.56 min vs. 33.35 min; Z = 8.669; p < 0.001). The median rating assigned by the TN to the quality of teleconsultation was 5.0 (4.25-5.0) (Table 1). The NIHSS scores assigned by both neurologists showed significant correlation (p < 0.001). Analysis of the agreement between the OS-N and TN in their treatment decisions yielded a Kappa value of 74.3% for interrater agreement.

CONCLUSIONS

Teleconsultation was a successful and reliable strategy in assessing patients with ischemic stroke and making decisions for IV-tPA. Moreover, patient assessment via teleconsultation was less time consuming. The results of the study are promising for the use of teleconsultation in the future.

Application of Telemedicine in the Ambulance for Stroke Patients: A Systematic Review

INTRODUCTION

The use of telemedicine for the prehospital management of emergency conditions, especially stroke, is increasing day by day. Few studies have investigated the applications of telemedicine in Emergency Medical Services (EMS). A comprehensive study of the applications of this technology in stroke patients in ambulances can help to build a better understanding. Therefore, this systematic review was conducted to investigate the use of telemedicine in ambulances for stroke patients in 2023.

METHODS

A systematic search was conducted in PubMed, Cochrane, Scopus, ProQuest, Science Direct, and Web of Science from 2013 through March 1, 2023. The authors selected the articles based on keywords and criteria and reviewed them in terms of title, abstract, and full text. Finally, the articles that were related to the study aim were evaluated.

RESULTS

The initial search resulted in the extraction of 2,795 articles. After review of the articles, and applying the inclusion and exclusion criteria, seven articles were selected for the final analysis. Three (42.85%) studies were on the feasibility and intervention types. Also, randomized trials, feasibility, feasibility and prospective-observational, and feasibility and retrospective-interventional studies were each one (14.28%). Six (85.71%) of the studies were conducted in the United States. The National Institutes of Health Stroke Scale (NIHSS) and RP-Xpress were the most commonly used tools for neurological evaluations and teleconsultations.

CONCLUSION

Remote prehospital consultations, triage, and sending patient data before they go to the emergency department can be provided through telemedicine in ambulances. Neurological evaluations via telemedicine are reliable and accurate, and they are almost equal to in-person evaluations by a neurologist.

Optimizing Patient-Centered Stroke Care and Research in the Prehospital Setting

Over the past decades, continuous technological advances and the availability of novel therapies have enabled treatment of more acute medical conditions than ever before. Many of these treatments, such as intravenous thrombolysis and mechanical thrombectomy for acute ischemic stroke, are highly time sensitive. This has raised interest in shifting advanced acute care from hospitals to the prehospital setting. Key objectives of advanced prehospital stroke care may include (1) early targeted treatments in the prehospital setting, for example, intravenous thrombolysis for acute stroke, and (2) advanced prehospital diagnostics such as prehospital large vessel occlusion and intracranial hemorrhage detection, to help inform patient triage and potentially reduce subsequent workload in emergency departments. Major challenges that may hamper a swift transition to more advanced prehospital care are related to conducting clinical trials in the prehospital setting to provide sufficient evidence for emergency interventions, as well as ambulance design, infrastructure, emergency medical service personnel training and workload, and cost barriers. Utilizing new technologies such as telemedicine, mobile stroke units and portable diagnostic devices, customized software applications, and smart storage space management may help surmount these challenges and establish efficient, targeted care strategies that are achievable in the prehospital setting. In this article, we delineate the paradigm of shifting advanced stroke care to the prehospital setting and outline future directions in providing evidence-based, patient-centered prehospital care. While we use acute stroke as an illustrative example, these principles are not limited to stroke patients and can be applied to prehospital triage for any time-critical disease.

Reliability of Longshi scale with remote assessment of smartphone video calls for stroke patients' activities of daily living

OBJECTIVES

The impairment of activities of daily living (ADL) has brought a heavy burden to the life of patients after stroke. Timely and accurate assessment of patients' activities of daily living is very necessary, which determines the whole process of diagnosis, rehabilitation and prognosis of patients. However, the patients with limited mobility or transportation are difficulted to gain high quality assessment services. This study aimed to explore the reliability of remote Longshi Assessment Scale of Activities of Daily Life (Longshi Scale) with smartphone video calls by comparing the consistency of remote assessment and bedside assessment, as well as the test-retest reliability of the remote assessment. The evaluation duration of these two methods was recorded and the level of satisfaction of patients was investigated.

METHODS

In this prospective study, a total of 129 stroke survivors were recruited and accepted a bedside face-to-face assessment and a remote assessment by video calls. The Longshi Scale was used for both bedside and remote assessment and conducted with the inquiry between patients and evaluators. A satisfaction questionnaire was also launched.

RESULTS

The result of disability level evaluated from the bedside and remote assessments was highly consistent. The intraclass correlation coefficient with weighted kappa (wK) value was 0.86 (95% confidence interval, 0.80∼0.92). And test-retest of the remote assessment indicated an excellent agreement beyond chance, and its correlation coefficient with wK value was 0.96 (95% confidence interval, 0.92∼1.00). It took 74.44±55.3 s to complete the bedside assessment and 90.86±63.30 s to complete the remote assessment of Longshi Scale. There was no statistical significance in the assessment duration between these two methods (P = 0.056). Satisfaction surveys showed more than 85% of participants were satisfied or very satisfied with remote Longshi scale assessment.

CONCLUSIONS

The remote assessment of Longshi Scale with smartphone video calls is reliable and has high acceptance. This method can be readily implemented to evaluate the ADL of stroke patients to improve the capacity of rehabilitation and health services in remote areas.

[Prehospital stroke treatment in German-speaking countries]

Background

The prognosis of stroke patients can be improved by adherence to clinical guidelines.

Objective

To analyse the current state of organisation of prehospital stroke treatment in Germany, Austria and Switzerland with a focus on guideline adherence.

Materials and methods

All medical directors of emergency medical services (MDEMS) in Germany (n = 178), Austria (n = 9) and Switzerland (n = 32) were invited to complete an anonymous online survey (unipark.com, Tivian XI GmbH, Cologne, Germany) which was available for 10 weeks from April-June 2020. Participants were asked for information regarding structural organisation, clinical treatment and strategic/tactical aspects.

Results

The survey was completed 69 times and 65 datasets were analysed (4 participants without MDEMS status): 73.8% (n = 48) were MDEMS from Germany, 15.4% (n = 10) from Switzerland and 10.8% from Austria (n = 7). The survey results show relevant differences in the infrastructure of and the approach to prehospital stroke treatment. Standard operating procedures for stroke treatment were in place in 93.3% (n = 61) of the EMS areas. Furthermore, 37% (n = 24) of the EMS areas differentiated between stroke with mild and severe symptoms and 15.4% (n = 10) used specific scores for the prehospital prediction of large vessel occlusion strokes (LVOS).

Conclusions

Our data highlight the heterogeneity of prehospital stroke treatment in Germany, Austria and Switzerland. Consistent use of appropriate scores for LVOS prediction and a higher adherence to recent clinical guideline in general are measures that should be taken to optimise the prehospital treatment of stroke patients.

Interrater Reliability, Acceptability, and Practicality of Real-Time Video Pediatric Gait, Arms, Legs, and Spine for Musculoskeletal Assessment of Children During Telemedicine Visits

BACKGROUND/OBJECTIVE

With the COVID-19 (coronavirus disease 2019) pandemic, telemedicine applications gained momentum, and clinicians tried to develop various musculoskeletal examination methods to be used in telemedicine visits. The aim of this study is to investigate the interrater reliability, acceptability, and practicality of the real-time video Pediatric Gait, Arms, Legs, and Spine (v-pGALS) assessment used in the evaluation during the telemedicine visit.

METHODS

The study was designed as cross-sectional. Twenty school-aged children who presented to outpatient clinics with musculoskeletal complaints were included. For interrater reliability, the children were evaluated by face-to-face examination with v-pGALS, and then the child was reevaluated by another physiatrist with real-time evaluation (online video call) with the help of a parent. For acceptability, the time taken and the discomfort caused were evaluated by patients/parents with the smiley face visual analog scale, whereas to assess practicality, the ratio of completeness to duration of examination completion was recorded.

RESULTS

κ coefficient of the agreement was found to be 0.88 between the results of the face-to-face examination and online video examination, suggesting very good agreement between the 2 raters. Acceptability of v-pGALS by parents and patients was high; 60% of children and 80% of parents found the duration of examination acceptable, and 70% of the patients and 95% of parents reported no discomfort caused by examination. The duration of face-to-face examination was 5.75 ± 1.29 minutes, whereas the duration of online examination was 15.81 ± 4.9 minutes.

CONCLUSIONS

Video pGALS is a reliable, acceptable, and practical examination system that can be used for musculoskeletal assessment of children in telemedicine visits.

User Needs and Challenges in Information Sharing between Pre-Hospital and Hospital Emergency Care Providers

Effective communication between pre-hospital and hospital providers is a critical first step towards ensuring efficient patient care. Despite many efforts in improving the communication process, inefficiencies persist. It is critical to understand user needs, work practices, and existing barriers to inform technology design for supporting pre-hospital communication. However, existing research examining the ways in which patient information is collected and shared by pre-hospital providers in the field has been limited. We conducted a series of ethnographic studies with both prehospital and hospital care providers to examine 1) the types of information that are commonly collected and shared by the pre-hospital providers in the field; 2) the types of pre-hospital information that are needed by hospital-based teams for ensuring appropriate preparation; and 3) the challenges in the pre-hospital communication process. We conclude by discussing technology opportunities for facilitating real-time information sharing in the field.

Communication Requirements in 5G-Enabled Healthcare Applications: Review and Considerations

Fifth generation (5G) mobile communication technology can enable novel healthcare applications and augment existing ones. However, 5G-enabled healthcare applications demand diverse technical requirements for radio communication. Knowledge of these requirements is important for developers, network providers, and regulatory authorities in the healthcare sector to facilitate safe and effective healthcare. In this paper, we review, identify, describe, and compare the requirements for communication key performance indicators in relevant healthcare use cases, including remote robotic-assisted surgery, connected ambulance, wearable and implantable devices, and service robotics for assisted living, with a focus on quantitative requirements. We also compare 5G-healthcare requirements with the current state of 5G capabilities. Finally, we identify gaps in the existing literature and highlight considerations for this space.

Shifting acute stroke management to the prehospital setting

PURPOSE OF REVIEW

The earlier the treatment, the better the outcomes after acute ischemic stroke. Optimizing prehospital care bears potential to shorten treatment times. We here review the recent literature on mothership vs. drip-and-ship as well as mobile stroke unit concepts.

RECENT FINDINGS

Mobile stroke units result in the shortest onset-to-treatment times in mostly urban settings.

SUMMARY

Future research should focus on further streamlining processes around mobile stroke units, especially improving dispatch algorithms and improve referral for endovascular therapy.

Hyperacute stroke thrombolysis via telemedicine: a multicentre study of performance, safety and clinical efficacy

OBJECTIVES

Timely thrombolysis of ischaemic stroke improves functional recovery, yet its delivery nationally is challenging due to shortages in the stroke specialist workforce and large geographical areas. One solution is remote stroke specialist input to regional centres via telemedicine. This study evaluates the usage and key metrics of performance of the East of England Stroke Telemedicine Partnership-the largest telestroke service in the UK-in providing hyperacute stroke care.

DESIGN

Prospective observational study.

SETTING

The East of England Stroke Telemedicine Partnership provides a horizontal 'hubless' model of out-of-hours hyperacute stroke care to a population of 6.2 million across a 7500 square mile semirural region.

PARTICIPANTS

All (2709) telestroke consultations between 1 January 2014 and 31 December 2019.

MAIN OUTCOME MEASURES

Thrombolysis decision, pre-thrombolysis and post-thrombolysis stroke severity (National Institutes of Health Stroke Scale, NIHSS), haemorrhagic complications, and hyperacute pathway timings.

RESULTS

Over the period, 1149 (42.4%) individuals were thrombolysed. Thrombolysis rates increased from 147/379 (38.8%) in 2014 to 225/490 (45.9%) in 2019. Median (IQR) pre-thrombolysis NIHSS was 10 (6-17), reducing to 6 (2-14) 24-hour post-thrombolysis (p<0.001). Post-thrombolysis haemorrhage occurred in 27 cases (2.3%). Over the period, median (IQR) door-to-needle time reduced from 85 (65-108) min to 68 (55-97.5) min (p<0.01), driven by improved imaging-to-needle times from 52.5 (38-72.25) min to 42 (30.5-62.5) min (p<0.01). However, the same period saw an increase in median onset-to-hospital arrival time from 77.5 (60-109.25) min to 95 (70-135) min (p<0.001).

CONCLUSIONS

The results from this large hyperacute telestroke cohort indicate two important points for clinical practice. First, telemedicine via a hubless horizontal model provides a clinically effective and safe method for delivering hyperacute stroke thrombolysis. Second, improved door-to-needle times were offset by a concerning rise in prehospital timings. These findings indicate that although telemedicine may benefit in-hospital hyperacute stroke care, improvements across the whole stroke pathway are essential.

Mobile stroke care expedites intravenous thrombolysis and endovascular thrombectomy

BACKGROUND

The number of mobile stroke programmes has increased with evidence, showing they expedite intravenous thrombolysis. Outstanding questions include whether time savings extend to patients eligible for endovascular therapy and impact clinical outcomes.

OBJECTIVE

Our mobile stroke unit (MSU), based at an academic medical centre in upstate New York, launched in October 2018. We reviewed prospective observational data sets over 26 months to identify MSU and non-MSU emergency medical service (EMS) patients who underwent intravenous thrombolysis or endovascular thrombectomy for comparison of angiographic and clinical outcomes.

RESULTS

Over 568 days in service, the MSU was dispatched 1489 times (2.6/day) and transported 300 patients (20% of dispatches). Intravenous tissue plasminogen activator (tPA) was administered to 57 MSU patients and the average time from 911 call-to-tPA was 42.5 min (±9.2), while EMS transported 73 patients who received tPA at 99.4 min (±35.7) (p<0.001). Seven MSU patients (12%) received tPA from 3.5 hours to 4.5 hours since last known well and would likely have been outside the window with EMS care. Endovascular thrombectomy was performed on 21 MSU patients with an average 911 call-to-groin puncture time of 99.9 min (±18.1), while EMS transported 54 patients who underwent endovascular thrombectomy (ET) at 133.0 min (±37.0) (p=0.0002). There was no difference between MSU and traditional EMS in modified Rankin score at 90-day clinic follow-up for patients undergoing intravenous thrombolysis or endovascular thrombectomy, whether assessed as a dichotomous or ordinal variable.

CONCLUSIONS

Mobile stroke care expedited both intravenous thrombolysis and endovascular thrombectomy. There is an ongoing need to show improved functional outcomes with MSU care.

Digital health in stroke medicine: what are the opportunities for stroke patients?

PURPOSE OF REVIEW

The European Stroke Organisation published a European Stroke Action Plan (SAP-E) for the years 2018-2030. The SAP-E addresses the entire chain of care from primary prevention through to life after stroke. Within this document digital health tools are suggested for their potential to facilitate greater access to stroke care. In this review, we searched for digital health solutions for every domain of the SAP-E.

RECENT FINDINGS

Currently available digital health solutions for the cerebrovascular disease have been designed to support professionals and patients in healthcare settings at all stages. Telemedicine in acute settings has notably increased the access to tissue plasminogen activator and thrombectomy whereas in poststroke settings it has improved access to rehabilitation. Moreover, numerous applications aim to monitor vital signs and prescribed treatment adherence.

SUMMARY

SAP-E with its seven domains covers the whole continuum of stroke care, where digital health solutions have been considered to provide utility at a low cost. These technologies are progressively being used in all phases of stroke care, allowing them to overcome geographical and organizational barriers. The commercially available applications may also be used by patients and their careers in various context to facilitate accessibility to health improvement strategies.

Telehealth in US hospitals: State-level reimbursement policies no longer influence adoption rates

OBJECTIVES

Prior to COVID-19, levels of adoption of telehealth were low in the U.S., though they exploded during the pandemic. Following the pandemic, it will be critical to identify the characteristics that were associated with adoption of telehealth prior to the pandemic as key drivers of adoption and outside of a public health emergency.

MATERIALS AND METHODS

We examined three data sources: The American Telemedicine Association's 2019 state telehealth analysis, the American Hospital Association's 2018 annual survey of acute care hospitals and its Information Technology Supplement. Telehealth adoption was measured through five telehealth categories. Independent variables included seven hospital characteristics and five reimbursement policies. After bivariate comparisons, we developed a multivariable model using logistic regression to assess characteristics associated with telehealth adoption.

RESULTS

Among 2923 US hospitals, 73% had at least one telehealth capability. More than half of these hospitals invested in telehealth consultation services and stroke care. Non-profit hospitals, affiliated hospitals, major teaching hospitals, and hospitals located in micropolitan areas (those with 10-50,000 people) were more likely to adopt telehealth. In contrast, hospitals that lacked electronic clinical documentation, were unaffiliated with a hospital system, or were investor-owned had lower odds of adopting telehealth. None of the statewide policies were associated with adoption of telehealth.

CONCLUSIONS

Telehealth policy requires major revisions soon, and we suggest that these policies should be national rather than at the state level. Further steps as incentivizing rural hospitals for adopting interoperable systems and expanding RPM billing opportunities will help drive adoption, and promote equity.

Role of Telemedicine in Prehospital Stroke Care

PURPOSE OF REVIEW

To summarize evidence for the feasibility and the efficacy of mobile stroke units (MSUs) and telemedicine in the field to reduce time delays in offering acute stroke interventions.

RECENT FINDINGS

A mobile stroke unit is a modified ambulance and includes sophisticated equipment, either trained personnel on board, or connection with skilled physicians via telemedicine. Stroke assessment and treatment agreeability between the on board and remote neurologist is high in MSUs. MSUs are the promising option to reduce stroke symptom onset to treatment time; telemedicine platform has a satisfactory audiovisual quality, high inter-rater reliability for remote stroke symptom assessment, diagnosis, and decision to treat. Use of MSU also avoids the need for inter-hospital transfers. MSUs improve prehospital stroke care and reduce delays in access to intravenous thrombolytic and mechanical thrombectomy in selective markets. Advancement in telecommunication and modern technology has the potential to make MSU telemedicine-aided management more cost-effective. Further research is needed before its widespread implementation.

Stroke systems of care in high-income countries: what is optimal?

Stroke is a complex, time-sensitive, medical emergency that requires well functioning systems of care to optimise treatment and improve patient outcomes. Education and training campaigns are needed to improve both the recognition of stroke among the general public and the response of emergency medical services. Specialised stroke ambulances (mobile stroke units) have been piloted in many cities to speed up the diagnosis, triage, and emergency treatment of people with acute stroke symptoms. Hospital-based interdisciplinary stroke units remain the central feature of a modern stroke service. Many have now developed a role in the very early phase (hyperacute units) plus outreach for patients who return home (early supported discharge services). Different levels (comprehensive and primary) of stroke centre and telemedicine networks have been developed to coordinate the various service components with specialist investigations and interventions including rehabilitation. Major challenges include the harmonisation of resources for stroke across the whole patient journey (including the rapid, accurate triage of patients who require highly specialised treatment in comprehensive stroke centres) and the development of technology to improve communication across different parts of a service.

The Value of Prehospital Early Warning Scores to Predict in - Hospital Clinical Deterioration: A Multicenter, Observational Base-Ambulance Study

OBJECTIVES

Early warning scores are clinical tools capable of identifying prehospital patients with high risk of deterioration. We sought here to contrast the validity of seven early warning scores in the prehospital setting and specifically, to evaluate the predictive value of each score to determine early deterioration-risk during the hospital stay, including mortality at one, two, three and seven- days since the index event. Methods: A prospective multicenter observational based-ambulance study of patients treated by six advanced life support emergency services and transferred to five Spanish hospitals between October 1, 2018 and December 31, 2019. We collected demographic, clinical, and laboratory variables. Seven risk score were constructed based on the analysis of prehospital variables associated with death within one, two, three and seven days since the index event. The area under the receiver operating characteristics was used to determine the discriminant validity of each early warning score. Results: A total of 3,273 participants with acute diseases were accurately linked. The median age was 69 years (IQR, 54-81 years), 1,348 (41.1%) were females. The overall mortality rate for patients in the study cohort ranged from 3.5% for first-day mortality (114 cases), to 7% for seven-day mortality (228 cases). The scores with the best performances for one-day mortality were Vitalpac Early Warning Score with an area under the receiver operating characteristic (AUROC) of 0.873 (95% CI: 0.81-0.9), for two-day mortality, Triage Early Warning Score with an AUROC of 0.868 (95% CI: 0.83-0.9), for three and seven-days mortality the Modified Rapid Emergency Medicine Score with an AUROC of 0.857 (0.82-0.89) and 0.833 (95% CI: 0.8-0.86). In general, there were no significant differences between the scores analyzed. Conclusions: All the analyzed scores have a good predictive capacity for early mortality, and no statistically significant differences between them were found. The National Early Warning Score 2, at the clinical level, has certain advantages. Early warning scores are clinical tools that can help in the complex decision-making processes during critical moments, so their use should be generalized in all emergency medical services.

Bridging the gap in epilepsy care: A single-center experience of 3700 outpatient tele-epilepsy visits

We describe the largest-to-date single-center implementation of tele-epilepsy. Beginning in 2017, all patients at a single tertiary care academic epilepsy center were offered the option to complete outpatient follow-up visits via video-conferencing using personal devices. A retrospective review of all patients who self-selected virtual visits over nearly 3 years showed 2140 patients completed 3698 tele-epilepsy visits, with 41% completing more than one visit during the study period. Based on the distance from the center to the home address, 26.7% of patients were local (≤50 miles), 30.5% were near regional (51-150 miles), 20.1% were far regional (151-270 miles), and 22.7% were remote (>270 miles), from 43 different states. An estimated 928 696 miles of travel was prevented, with a median travel distance saved of 124.5 miles (interquartile range = 45.0-253.0). The mean visit time was 15.7 (±10.4) minutes. More than 90% of patients gave the visit and provider experience the maximum rating, with a nearly 60% response rate on the post-visit survey. Virtual outpatient follow-up care provides a convenient way to connect with epilepsy specialists and reduce the burden of care by cutting travel time. Our experience demonstrates that outpatient tele-epilepsy is feasible, sustainable, and scalable.

Telemedicine in Prehospital Acute Stroke Care

Background

Mobile stroke units (MSUs), equipped with an integrated computed tomography scanner, can shorten time to thrombolytic treatment and may improve outcome in patients with acute ischemic stroke. Original (German) MSUs are staffed by neurologists trained as emergency physicians, but patient assessment and treatment decisions by a remote neurologist may offer an alternative to neurologists aboard MSU.

Methods and Results

Remote neurologists examined and assessed emergency patients treated aboard the MSU in Berlin, Germany. Audiovisual quality was rated by the remote neurologist from 1 (excellent) to 6 (insufficient), and duration of video examinations was assessed. We analyzed interrater reliability of diagnoses, scores on the National Institutes of Health Stroke Scale and treatment decisions (intravenous thrombolysis) between the MSU neurologist and the remote neurologist. We included 90 of 103 emergency assessments (13 patients were excluded because of either failed connection, technical problems, clinical worsening during teleconsultation, or missing data in documentation) in this study. The remote neurologist rated audiovisual quality with a median grade for audio quality of 3 (satisfactory) and for video quality of 2 (good). Mean time for completion of teleconsultations was about 19±5 minutes. The interrater reliabilities between the onboard and remote neurologist were high for diagnoses (Cohen's κ=0.86), National Institutes of Health Stroke Scale sum scores (intraclass correlation coefficient, 0.87) and treatment decisions (16 treatment decisions agreed versus 2 disagreed; Cohen's κ=0.93).

Conclusions

Remote assessment and treatment decisions of emergency patients are technically feasible with satisfactory audiovisual quality. Agreement on diagnoses, neurological examinations, and treatment decisions between onboard and remote neurologists was high.

See Editorial by Derry et al

Telehealth dashboard: leverage reporting functionality to increase awareness of high-acuity emergency department patients across an enterprise practice

BACKGROUND

Emergency Medicine Telehealth (TeleEM) represents an opportunity to work directly with referral centres, rural facilities and underserved areas to mitigate unnecessary testing, optimise resource utilisation and facilitate patient transfers across health systems. To optimise the impact of a TeleEM programme, a tool is needed to remotely monitor patient activity in multiple emergency department facilities, concurrently.

METHODS

After identifying data sources for activation criteria put forth by the TeleEM operations group, rules were constructed within the electronic health record to facilitate data checks and ultimately produce a yes/no response if the category's conditions were met. Responses were organised into a table, with functionality allowing end users to drill into the different sites to see patient-specific information for patients meeting activation criteria.

CONCLUSIONS

The TeleEM dashboard allows for proactive engagement by the TeleEM physician and strengthens the team-based approach of critically ill.

Evaluative Research of Technologies for Prehospital Communication and Coordination: a Systematic Review

Various technologies have been designed and developed to support communication and coordination between the field and hospital during a medical emergency. The usability issues and human factors entailed in these new technologies are important to their application and effectiveness, suggesting the need to examine this information in a systematic review. The systematic review aims to synthesize the user-centered evaluative research of prehospital communication technologies. We conducted a systematic literature search in four databases (Medline, Cochrane, Embase, and Web of Science) for articles published between the years 2000 and 2019. We included articles that evaluated the technologies developed for supporting prehospital communication and collaboration, and were published in English. A total of 918 articles were retrieved and screened, with 17 articles included for in-depth analysis. Two authors conducted independent screens and reviews of the articles using a list of inclusion/exclusion criteria and defined factors. The types of technology of reviewed articles included ambulance-based telemedicine, wearable, handheld, and Internet of Things (IoT) devices. Even though these technologies have demonstrated high levels of user acceptance, the reviewed studies noted a variety of challenges faced by emergency care providers, which were grouped into three categories-technical, usability, and organizational challenges. Our review also highlighted the paucity of evaluative research of prehospital communication technologies and the lack of user engagement throughout system design process. Based on the results, we discuss the importance of adopting user-centered design approaches and accounting for three social-technical factors in designing technologies for time-critical medical settings, including cognitive and physical stressor, workflow, and context. This systematic review presents an overview of key evaluative research of prehospital communication technologies. The paucity of evaluative research in prehospital communication technology and challenges faced in adopting advanced technological solutions in emergency care highlight the need to adopt user-centered design and take into account socio-technical issues at the point of system design.

Using telerehabilitation to improve cognitive function in post-stroke survivors: is this the time for the continuity of care?

Post-stroke cognitive disorders can affect different domains, depending on typology of stroke and lesion localization, onset time, age and diagnostic tools used. In recent years, telerehabilitation using virtual reality has been used to reduce the healthcare costs encouraging continuity of care. The aim of our study is to evaluate the efficacy of a virtual reality rehabilitation system in improving cognitive function in stroke survivors. Forty patients affected by stroke were enrolled in this study and randomized into either the control or the experimental groups in order of recruitment. The study lasted 6 months, and included two phases: (1) during the first phase the experimental group underwent cognitive rehabilitation training using the Virtual Reality Rehabilitation System-Evo, whereas the control group was submitted to standard cognitive training; (2) in the second phase (after discharge), the experimental group was treated by means of virtual reality rehabilitation system Home Tablet (three sessions a week, each session lasting about 50 minutes), and the control group continued the traditional training, with the same amount of treatment. The patients underwent a neuropsychological evaluation before and at the end of the treatment. Linear mixed-effects analysis results showed that the scores of Montreal overall cognitive assessment, attentive matrices, Trail Making Test B, Phonemic Fluency, Semantic Fluency, Rey Auditory Verbal Learning Test I, Hamilton Rating Scale-Anxiety and Hamilton Rating Scale-Depression were affected by the type of the rehabilitative treatment. Our data show the effectiveness of telerehabilitation for the treatment of cognitive disorders following stroke.

Telemedicine in Prehospital Acute Stroke Care: An Expanding Infrastructure for Treatment and Research

See Article by Geisler et al.