[Focusing on intersectorality-strategies and current research projects for the care of geriatric people]. / Intersektoralität im Fokus ­ Strategien und aktuelle Forschungsprojekte zur Versorgung geriatrischer Personen.

In view of the demographic change, the need for intersectoral care of the aging population has already been identified. The strategies for implementation are diverse and address different approaches, each of which requires different sectors to overlap. This article provides an overview of already completed and ongoing projects for the care of geriatric patients. It becomes apparent that the development of networks as an indispensable basis for intersectoral care cannot be measured in terms of direct intervention effects and therefore makes it difficult to prove the cost-benefit. It is also evident that some research projects fail to be implemented into standard care due to financial and staff shortages.Do we need a rethinking in Germany or less innovation-related funding lines for better implementation and research of existing concepts? International role models such as Japan show that cost reduction for the care of the aging population should be considered in the long term, which requires increased financial volumes in the short term. For a sustainable implementation of cross-sectoral approaches into everyday life, research should therefore reorganize tight and/or entrenched structures, processes, and financing. By linking the countless existing projects and integrating ideas from different sectors, future demands of intersectoral geriatric care may be achieved.

[Thrombotic thrombocytopenic purpura-a differential diagnostic challenge in an emergency]. / Thrombotisch-thrombozytopenische Purpura ­ eine differenzialdiagnostische Herausforderung im Notfall.

Thrombotic thrombocytopenic purpura (TTP), which comprises thrombocytopenia, elevated lactate dehydrogenase levels, and anemia in the combination of organ involvement, is a rare but life-threatening condition associated with an extremely high lethality in the acute phase if left untreated. Using the example of a 49-year-old woman admitted to the hospital with unexplained abdominal symptoms and subfebrile temperatures, recommendations for the emergency situation are presented. Increased awareness of the disease and targeted further diagnostics with determination of the PLASMIC score or ADAMTS13 activity may lead directly to diagnosis of TTP; delayed diagnosis is usually associated with secondary complications.

Optimal@NRW: optimized acute care of nursing home residents using an intersectoral telemedical cooperation network - study protocol for a stepped-wedge trial.

BACKGROUND: Increasing life expectancy is associated with a growing number of people living in nursing homes, while the availability of outpatient medical care, especially from family doctors, is stagnating in this sector. Consequently, numerous and often avoidable, low-threshold hospitalizations of nursing home residents are observed. This results in unnecessary use of resources such as emergency services and emergency rooms as well as in potential health risks to the nursing home residents related to hospitalization. This study aims to improve this healthcare gap by implementing an intersectoral telemedicine approach. METHODS: Twenty-five nursing homes are participating and provided with telemedical equipment to perform teleconsultations. Additionally, an early warning system and a digital patient record system are implemented. Telephysicians based at RWTH Aachen University Hospital are ready to support the nursing homes around the clock if the family doctor or an emergency service practice is not available in time. Mobile non-physician practice assistants from the telemedicine centre can be dispatched to perform delegable medical activities. General practitioners and the medical emergency practices also have access to the telemedical infrastructure and the non-physician practice assistants. DISCUSSION: Optimal@NRW adds a telemedicine component to standard care - combining elements of outpatient and inpatient health care as well as emergency service practices - to enable timely medical consultation for nursing home residents in case of the development of an acute medical condition. In addition to optimized medical care, the goal is to reduce unnecessary hospital admissions. The intersectoral approach allows for the appropriate use of resources to match the individually needed medical treatment. TRIAL REGISTRATION: ClinicalTrials.gov NCT04879537 . Registered on May 10, 2021.

[Structure and Organization of an Emergency Department]. / Struktur und Organisation einer zentralen Notaufnahme.

The more diverse the German hospital landscape, the more important it is to define tasks and processes in order to ensure a uniform standard of care at the highest level for the population. With the introduction of additional training in clinical acute and emergency medicine and specifications for inpatient emergency care, important foundations for the necessary structure of emergency rooms have been given.

Possible Alterations of Imaging Patterns in Computed Tomography for Delta-VOC of SARS-CoV-2.

BACKGROUND: So far, typical findings for COVID-19 in computed tomography (CT) have been described as bilateral, multifocal ground glass opacities (GGOs) and consolidations, as well as intralobular and interlobular septal thickening. On the contrary, round consolidations with the halo sign are considered uncommon and are typically found in fungal infections, such as invasive pulmonary aspergillosis. The authors recently observed several patients with COVID-19 pneumonia presenting with round, multifocal consolidations accompanied by a halo sign. As this may indicate alterations of CT morphology based on the virus variant, the aim of this study was to investigate this matter in more detail. METHODS: 161 CT scans of patients with confirmed SARS-CoV-2 infection (RT-PCR within 2 days of CT) examined between January 2021 and September 15, 2021 were included. Follow-up examinations, patients with invasive ventilation at the time of CT, and patients with insufficient virus typing for variants of concern (VOC) were excluded. CT scans were assessed for vertical and axial distribution of pulmonary patterns, degree of involvement, uni- vs. bilaterality, reticulations, and other common findings. The mean density of representative lesions was assessed in Hounsfield units. Results were compared using Mann-Whitney U-tests, Student's t-rests, descriptive statistics, and Fisher's exact tests. RESULTS: 75 patients did not meet the inclusion criteria. Therefore, 86/161 CT scans of unique patients were analyzed. PCR VOC testing confirmed manifestation of the Delta-VOC SARS-CoV-2 in 22 patients, 39 patients with Alpha-VOC and the remaining 25 patients with Non-VOC SARS-CoV-2 infections. Three patients with the Delta-VOC demonstrated multiple pulmonary masses or nodules with surrounding halo sign, whereas no patients with either Alpha-VOC (p = 0.043) or non-VOC (p = 0.095) demonstrated these findings. All three patients were admitted to normal wards and had no suspicion of a pulmonary co-infection. Patients with Delta-VOC were less likely to have ground glass opacities compared to Alpha-VOC (7/22 or 31.8 % vs. 4/39 or 10.3 %; p < 0.001), whereas a significant difference has not been observed between Delta-VOC and non-VOC (5/25 or 20 %; p = 0.348). The mean representative density of lesions did not show significant differences between the studied cohorts. CONCLUSION: In this study 3 out of 22 patients (13.6 %) with Delta-VOC presented with bilateral round pulmonary masses or nodules with surrounding halo signs, which has not been established as a notable imaging pattern in COVID-19 pneumonia yet. Compared to the other cohorts, a lesser percentage of patients with Delta-VOC presented with ground glass opacities. Based on these results Delta-VOC might cause a divergence in CT-morphologic phenotype. KEY POINTS: · Until recently, CT-morphologic signs of COVID-19 pneumonia have been presumed to be uncontroversially understood. Yet, recently the authors observed diverging pulmonary alterations in patients infected with Delta-VOC.. · These imaging alterations included round pulmonary masses or nodules with surrounding halo sign.. · These imaging alterations have not yet been established as typical for COVID-19 pneumonia, yet.. · Based on these results, Delta-VOC could impose a divergence of CT-morphologic phenotype.. CITATION FORMAT: · Yüksel C, Sähn M, Kleines M et al. Possible Alterations of Imaging Patterns in Computed Tomography for Delta-VOC of SARS-CoV-2 . Fortschr Röntgenstr 2022; 194: 1229 - 1241.

The WHO High 5s project: medication reconciliation in a German university hospital. A prospective observational cohort study.

BACKGROUND: Ensuring medication accuracy during transitions in care is one of the five highly prevalent patient safety problems focused on within the World Health Organization High 5s Project. Medication reconciliation is a standardized patient care process that can be used to address this problem. The aim of the current study is to implement medication reconciliation in a German university hospital. METHODS: The study was conducted at the Emergency Department of the University Hospital Aachen, Germany. All discrepancies between the Best Possible Medication History and the Admission Medication Order were documented and classified as documentation errors or medication errors. The type of error was also recorded. A negative binomial regression model was used to test several factors influencing the number of discrepancies. RESULTS: The medications of 105 patients were reconciled. The mean number of discrepancies per patient was 4.6± 3.6, with a total of 298 medication errors and 189 documentation errors. The most common type of medication error was the omission of a drug (n=208; 69.8 %). In the negative binomial regression analysis, the care status (p=0.0015) as well as the number of preadmission drugs (p=0.0007) were significantly associated with medication errors. DISCUSSION: A high number of discrepancies was detected and analysed. Patients admitted from nursing homes were less likely to have discrepancies in their medication reconciliation, perhaps because a structured documentation system for medications is already in place at nursing homes including error prone products (special dosage forms or food supplements). CONCLUSIONS: In this study, medication reconciliation was implemented at a German full-care university hospital. The actual number of discrepancies observed strongly indicates the need for medication reconciliation at hospital admission.

Implementation of a full-scale prehospital telemedicine system: evaluation of the process and systemic effects in a pre-post intervention study.

OBJECTIVES: To review the implementation strategy from a research project towards routine care of a comprehensive mobile physician-staffed prehospital telemedicine system. The objective is to evaluate the implementation process and systemic influences on emergency medical service (EMS) resource utilisation. DESIGN: Retrospective pre-post implementation study. SETTING: Two interdisciplinary projects and the EMS of a German urban region. INTERVENTIONS: Implementation of a full-scale prehospital telemedicine system. ENDPOINTS: Descriptive evaluation of the implementation strategy. Primary endpoint: ground-based and helicopter-based physician staffed emergency missions before and after implementation. RESULTS: The first research project revealed positive effects on guideline adherence and patient safety in two simulation studies, with feasibility demonstrated in a clinical study. After technical optimisation, safety and positive effects were demonstrated in a multicentre trial. Routine care in the city of Aachen, Germany was conducted stepwise from April 2014 to March 2015, including modified dispatch criteria. Systemic parameters of all EMS assignments between pre-implementation (April 2013 to March 2014) and post implementation (April 2015 to March 2016): on-scene EMS physician operations decreased from 7882/25 187 missions (31.3%) to 6360/26 462 (24.0%), p<0.0001. The need for neighbouring physician-staffed units dropped from 234/25 187 (0.93%) to 119/26 462 (0.45%), p<0.0001, and the need for helicopter EMS from 198/25 187 (0.79%) to 100/26 462 (0.38%), p<0.0001. In the post implementation period 2347 telemedical interventions were conducted, with 26 462 emergency missions (8.87%). CONCLUSION: A stepwise implementation strategy allowed transfer from the project phase to routine care. We detected a reduced need for conventional on-scene physician care by ground-based and helicopter-based EMS, but cannot exclude unrecognised confounders, including modified dispatch criteria and possible learning effects. This creates the potential for increased availability of EMS physicians for life-threatening emergencies by shifting physician interventions from conventional to telemedical care. TRIAL REGISTRATION NUMBER: NCT04127565.

Accuracy of Chest CT for Differentiating COVID-19 from COVID-19 Mimics.

PURPOSE: To determine the performance of radiologists with different levels of expertise regarding the differentiation of COVID-19 from other atypical pneumonias. Chest CT to identify patients suffering from COVID-19 has been reported to be limited by its low specificity for distinguishing COVID-19 from other atypical pneumonias ("COVID-19 mimics"). Meanwhile, the understanding of the morphologic patterns of COVID-19 has improved and they appear to be fairly specific. MATERIALS AND METHODS: Between 02/2020 and 04/2020, 60 patients with COVID-19 pneumonia underwent chest CT in our department. Cases were matched with a comparable control group of 60 patients of similar age, sex, and comorbidities, who underwent chest CT prior to 01/2020 for atypical pneumonia caused by other pathogens. Included were other viral, fungal, and bacterial pathogens. All 120 cases were blinded to patient history and were reviewed independently by two radiologists and two radiology residents. Readers rated the probability of COVID-19 pneumonia according to the COV-RADS classification system. Results were analyzed using Clopper-Pearson 95 % confidence intervals, Youden's Index for test quality criteria, and Fleiss' kappa statistics. RESULTS: Overall, readers were able to correctly identify the presence of COVID-19 pneumonia in 219/240 (sensitivity: 91 %; 95 %-CI; 86.9 %-94.5 %), and to correctly attribute CT findings to COVID-19 mimics in 159/240 ratings (specificity: 66.3 %; 59.9 %-72.2 %), yielding an overall diagnostic accuracy of 78.8 % (378/480; 74.8 %-82.3 %). Individual reader accuracy ranged from 74.2 % (89/120) to 84.2 % (101/120) and did not correlate significantly with reader expertise. Youden's Index was 0.57. Between-reader agreement was moderate (κ = 0.53). CONCLUSION: In this enriched cohort, radiologists were able to distinguish COVID-19 from "COVID-19 mimics" with moderate diagnostic accuracy. Accuracy did not correlate with reader expertise. KEY POINTS: · In a scenario of direct comparison (no negative findings), CT allows the differentiation of COVID-19 from other atypical pneumonias ("COVID mimics") with moderate accuracy.. · Reader expertise did not significantly influence these results.. · Despite similar patterns and distributions of pulmonary findings, radiologists were able to estimate the probability of COVID-19 pneumonia using the COV-RADS classification in a standardized manner in the larger proportion of cases.. CITATION FORMAT: · Sähn M, Yüksel C, Keil S et al. Accuracy of Chest CT for Differentiating COVID-19 from COVID-19 Mimics. Fortschr Röntgenstr 2021; 193: 1081 - 1091.

Helicopter Emergency Medical Service and Hospital Treatment Levels Affect Survival in Pediatric Trauma Patients.

(1) Background: Data on the effects of helicopter emergency medical service (HEMS) transport and treatment on the survival of severely injured pediatric patients in high-level trauma centers remain unclear. (2) Methods: A national dataset from the TraumaRegister DGU® was used to retrospectively compare the mortality rates among severely injured pediatric patients (1-15 years) who were transported by HEMS to those transported by ground emergency medical service (GEMS) and treated at trauma centers of different treatment levels (levels I-III). (3) Results: In total, 2755 pediatric trauma patients (age: 9.0 ± 4.8 years) were included in this study over five years. Transportation by HEMS resulted in a significant survival benefit compared to GEMS (odds ratio (OR) 0.489; 95% confidence interval (CI): 0.282-0.850). Pediatric trauma patients treated in level II or III trauma centers showed 34% and fourfold higher in-hospital mortality risk than those in level I trauma centers (level II: OR 1.34, 95% CI: 0.70-2.56; level III: OR 4.63, 95% CI: 1.33-16.09). (4) Conclusions: In our national pediatric trauma cohort, both HEMS transportation and treatment in level I trauma centers were independent factors of improved survival in pediatric trauma patients.

The Characteristics of 50 Hospitalized COVID-19 Patients With and Without ARDS.

BACKGROUND: The type of pneumonia (coronavirus disease 2019, COVID-19) that is caused by the new coronavirus (severe acute respiratory syndrome coronavirus 2, SARS-CoV-2) is now spreading across the world in a pandemic. Many patients with COVID-19 were admitted to the University Hospital Aachen during an outbreak that first struck the Heinsberg district in February 2020. METHODS: A comparative presentation of the clinical features of the first 50 COVID-19 patients with and without acute respiratory distress syndrome (ARDS) who were hospitalized in the University Hospital Aachen. RESULTS: 24 intubated patients were treated in the intensive care unit for ARDS of varying degrees of severity, while 26 patients who were breathing spontaneously without ARDS, but nevertheless needed supplemental oxygen, were treated in a separate isolation ward. The median age of the patients was 65 (IQR 58-76). The median latency from symptom onset to hospitalization was four days (IQR 1-8). Patients with ARDS had preexisting respiratory diseases more commonly than patients without ARDS (58% [95% confidence interval: 39; 76] versus 42% [26; 61]) and were more commonly overweight or obese (83% [64; 93] versus 42% [26; 61]). The two groups did not differ in viral burden but displayed significant differences in laboratory findings: ARDS patients had persistently elevated values for leukocytes, interleukin-6, lactate dehydrogenase, creatine kinase, and D-dimers over the period of observation. Patients without ARDS had persistently elevated inflammatory parameters and fever for at least one week, with an accompanying need for supplemental oxygen. Three of the patients with ARDS died of multiorgan failure, while four in the non-ARDS group died of respiratory insufficiency. CONCLUSION: This initial description of a cohort of COVID-19 patients with and without ARDS in Germany reveals that those with ARDS more commonly have preexisting respiratory diseases and obesity, as well as persistently elevated inflammatory markers. COVID-19 patients without ARDS may likewise require prolonged hospitalization because of persistently elevated inflammatory values with a simultaneous need for supplemental oxygen.

The assessment of dermatological emergencies in the emergency department via telemedicine is safe: a prospective pilot study.

The aim of the study was to examine the feasibility and safety of telemedicine for dermatological emergency patients in the emergency department. This observational study was monocentric, open, prospective and two-arm randomized [control group (n = 50) and teledermatology group (n = 50)]. The control group was conventionally recruited directly by a dermatologist. In the teledermatology group patients, images of the skin lesions and clinical parameters were transferred to a tablet PC (personal computer) by an emergency physician and telemedically assessed by a dermatologist without patient contact. Subsequently, the dermatologist, who was previously telemedically contacted, then personally examined the patient in the emergency department. The treatment time between the control group and the teledermatology group was also recorded and compared. The agreement in suspected diagnosis between teledermatological evaluation and clinical evaluation of the same physician in the teledermatology group was 100%. The treatment time [mean (minutes) ± standard deviation] of the control group was 151 ± 71, that of the teledermatology group was 43 ± 38 (p < 0.001). The use of emergency telemedicine is safe and effective and provides a viable alternative for clinical care of emergency patients.

Utilization, Safety, and Technical Performance of a Telemedicine System for Prehospital Emergency Care: Observational Study.

BACKGROUND: As a consequence of increasing emergency medical service (EMS) missions requiring an EMS physician on site, we had implemented a unique prehospital telemedical emergency service as a new structural component to the conventional physician-based EMS in Germany. OBJECTIVE: We sought to assess the utilization, safety, and technical performance of this telemedical emergency service. METHODS: We conducted a retrospective analysis of all primary emergency missions with telemedical consultation of an EMS physician in the City of Aachen (250,000 inhabitants) during the first 3 operational years of our tele-EMS system. Main outcome measures were the number of teleconsultations, number of complications, and number of transmission malfunctions during teleconsultations. RESULTS: The data of 6265 patients were analyzed. The number of teleconsultations increased during the run-in period of four quarters toward full routine operation from 152 to 420 missions per quarter. When fully operational, around the clock, and providing teleconsultations to 11 mobile ambulances, the number of teleconsultations further increased by 25.9 per quarter (95% CI 9.1-42.6; P=.009). Only 6 of 6265 patients (0.10%; 95% CI 0.04%-0.21%) experienced adverse events, all of them not inherent in the system of teleconsultations. Technical malfunctions of single transmission components occurred from as low as 0.3% (95% CI 0.2%-0.5%) during two-way voice communications to as high as 1.9% (95% CI 1.6%-2.3%) during real-time vital data transmissions. Complete system failures occurred in only 0.3% (95% CI 0.2%-0.6%) of all teleconsultations. CONCLUSIONS: The Aachen prehospital EMS is a frequently used, safe, and technically reliable system to provide medical care for emergency patients without an EMS physician physically present. Noninferiority of the tele-EMS physician compared with an on-site EMS physician needs to be demonstrated in a randomized trial.

Telemedical support for prehospital Emergency Medical Service (TEMS trial): study protocol for a randomized controlled trial.

BACKGROUND: Increasing numbers of emergency calls, shortages of Emergency Medical Service (EMS), physicians, prolonged emergency response times and regionally different quality of treatment by EMS physicians require improvement of this system. Telemedical solutions have been shown to be beneficial in different emergency projects, focused on specific disease patterns. Our previous pilot studies have shown that the implementation of a holistic prehospital EMS teleconsultation system, between paramedics and experienced tele-EMS physicians, is safe and feasible in different emergency situations. We aim to extend the clinical indications for this teleconsultation system. We hypothesize that the use of a tele-EMS physician is noninferior regarding the occurrence of system-induced patient adverse events and superior regarding secondary outcome parameters, such as the quality of guideline-conforming treatment and documentation, when compared to conventional EMS-physician treatment. METHODS/DESIGN: Three thousand and ten patients will be included in this single-center, open-label, randomized controlled, noninferiority trial with two parallel arms. According to the inclusion criteria, all emergency cases involving adult patients who require EMS-physician treatment, excluding life-threatening cases, will be randomly assigned by the EMS dispatching center into two groups. One thousand five hundred and five patients in the control group will be treated by a conventional EMS physician on scene, and 1505 patients in the intervention group will be treated by paramedics who are concurrently instructed by the tele-EMS physicians at the teleconsultation center. The primary outcome measure will include the rate of treatment-specific adverse events in relation to the kind of EMS physician used. The secondary outcome measures will record the specific treatment-associated quality indicators. DISCUSSION: The evidence underlines the better quality of service using telemedicine networks between medical personnel and medical experts in prehospital emergency care, as well as in other medical areas. The worldwide unique EMS teleconsultation system in Aachen has been optimized and evaluated in pilot studies and subsequently integrated into routine use for a broad spectrum of indications. It has enabled prompt, safe and efficient patient treatment with optimized use of the "resource" EMS physician. There is, however, a lack of evidence as to whether the advantages of the teleconsultation system can be replicated in wider-ranging EMS-physician indications (excluding life-threatening emergency calls). TRIAL REGISTRATION: ClinicalTrials.gov, identifier: NCT02617875 . Registered on 24 November 2015.

Adult "termination-of-resuscitation" (TOR)-criteria may not be suitable for children - a retrospective analysis.

BACKGROUND: Only a small number of patients survive out-of-hospital-cardiac-arrest (OHCA). The duration of CPR varies considerably and transportation of patients under CPR is often unsuccessful. Termination-of-resuscitation (TOR)-criteria aim to preclude futile resuscitation efforts. Our goal was to find out to which extent existing TOR-criteria can be transferred to paediatric OHCA-patients with special regard to their prognostic value. METHODS: We performed a retrospective analysis of an eleven-year single centre patient cohort. 43 paediatric patients admitted to our institution after emergency-medical-system (EMS)-confirmed OHCA from 2003 to 2013 were included. Morrison's BLS- and ALS-TOR-rules as well as the Trauma-TOR-criteria by the American Association of EMS Physicians were evaluated for application in children, by calculating sensitivity, specificity, negative and positive predictive value for death-, as well as survival-prediction in our cohort. RESULTS: 26 patients achieved ROSC and 14 were discharged alive (n = 7 PCPC 1/2, n = 7 PCPC 5). Sensitivity for BLS-TOR-criteria predicting death was 48.3%, specificity 92.9%, the PPV 93.3% and the NPV 46.4%. ALS-TOR-criteria for death had a sensitivity of 10.3%, specificity of 100%, a PPV of 100% and an NPV of 35%. CONCLUSION: Retrospective application of the BLS-TOR-rule in our patient cohort identified the resuscitation of one later survivor as futile. ALS-TOR-criteria did not give false predictions of death. The proportion of CPRs that could have been abandoned is 48.2% for the BLS-TOR and only 10.3% for the ALS-TOR-rule. Both rules therefore appear not to be transferable to a paediatric population.

[Tele-cooperation for innovative care using the example of the University Hospital Aachen. Telematics in intensive care medicine, emergency medicine, and telemedical intersectoral rehabilitation planning in geriatric trauma]. / Telekooperation für die innovative Versorgung am Beispiel des Universitätsklinikums Aachen : Telematik in der Intensivmedizin (TIM), Telenotarzt und Telemedizinische intersektorale Rehabilitationsplanung in der Alterstraumatologie (TIRA).

The demographic challenge of the ageing society is associated with increasing comorbidity. On the other hand, there will be an ageing workforce in medicine, resulting in an imbalance between the demand and supply of medical care in the near future. In rural areas in particular, this imbalance is already present today. Based on three best practice projects carried out by our telemedical center in Aachen, including emergency medicine, intensive care medicine, and the rehabilitation planning of geriatric trauma care, some experience and the potential of the intersectoral provision of care, supported by telemedicine, are demonstrated. Telemedicine is the provision of medical services over a geographical distance by using tele-communication and data transfer. It has been proven to ensure a constant quality of health care. Telemedical support enables shared expertise independent of time and space, and allows efficient allocation of resources. A review of international experience supports this notion.

Improving hand hygiene compliance in the emergency department: getting to the point.

BACKGROUND: The emergency department (ED) represents an environment with a high density of invasive, and thus, infection-prone procedures. The two primary goals of this study were (1) to define the number of hand-rubs needed for an individual patient care at the ED and (2) to optimize hand hygiene (HH) compliance without increasing workload. METHODS: Prospective tri-phase (6-week observation phases interrupted by two 6-week interventions) before after study to determine opportunities for and compliance with HH (WHO definition). Standard operating procedures (SOPs) were optimized for invasive procedures during two predefined intervention periods (phases I and II) to improve workflow practices and thus compliance with HH. RESULTS: 378 patient cases were evaluated with 5674 opportunities for hand rubs (HR) and 1664 HR performed. Compliance significantly increased from 21% (545/2603) to 29% (467/1607), and finally 45% (652/1464; all p<0.001) in phases 1, 2, and 3, respectively. The number of HR needed for one patient care significantly decreased from 22 to 13 for the non-surgical and from 13 to 7 for the surgical patients (both p<0.001) due to improved workflow practices after implementing SOPs. In parallel, the number of HR performed increased from 3 to 5 for non-surgical (p<0.001) and from 2 to 3 for surgical patients (p=0.317). Avoidable opportunities as well as glove usage instead of HR significantly decreased by 70% and 73%, respectively. CONCLUSIONS: Our study provides the first detailed data on HH in an ED setting. Importantly, HH compliance improved significantly without increasing workload.

Implementation phase of a multicentre prehospital telemedicine system to support paramedics: feasibility and possible limitations.

BACKGROUND: Legal regulations often limit the medical care that paramedics can provide. Telemedical solutions could overcome these limitations by remotely providing expert support. Therefore, a mobile telemedicine system to support paramedics was developed. During the implementation phase of this system in four German emergency medical services (EMS), the feasibility and possible limitations of this system were evaluated. METHODS: After obtaining ethical approval and providing a structured training program for all medical professionals, the system was implemented on three paramedic-staffed ambulances on August 1st, 2012. Two more ambulances were included subsequently during this month. The paramedics could initiate a consultation with EMS physicians at a teleconsultation centre. Telemedical functionalities included audio communication, real-time vital data transmission, 12-lead electrocardiogram, picture transmission on demand, and video streaming from a camera embedded into the ceiling of each ambulance. After each consultation, telephone-based debriefings were conducted. Data were retrieved from the documentation protocols of the teleconsultation centre and the EMS. RESULTS: During a one month period, teleconsultations were conducted during 35 (11.8%) of 296 emergency missions with a mean duration of 24.9 min (SD 12.5). Trauma, acute coronary syndromes, and circulatory emergencies represented 20 (57%) of the consultation cases. Diagnostic support was provided in 34 (97%) cases, and the administration of 50 individual medications, including opioids, was delegated by the teleconsultation centre to the paramedics in 21 (60%) missions (range: 1-7 per mission). No medical complications or negative interpersonal effects were reported. All applications functioned as expected except in one case in which the connection failed due to the lack of a viable mobile network. CONCLUSION: The feasibility of the telemedical approach was demonstrated. Teleconsultation enabled early initiation of treatments by paramedics operating under the real-time medical direction. Teleconsultation can be used to provide advanced care until the patient is under a physician's care; moreover, it can be used to support the paramedics who work alone to provide treatment in non-life-threatening cases. Non-availability of mobile networks may be a relevant limitation. A larger prospective controlled trial is needed to evaluate the rate of complications and outcome effects.

Is paper-based documentation in an emergency medical service adequate for retrospective scientific analysis? An evaluation of a physician-run service.

OBJECTIVE: To investigate if paper-based documentation in the authors' emergency medical service (EMS) satisfies scientific requirements. METHODS: From 1 July 2007 to 28 February 2008, data from all paper-based protocols of a physician-run EMS in Aachen, Germany, were transferred to a SQL database (n=4815). Database queries were conducted after personal data had been anonymised. Documentation ratios of 11 individual parameters were analysed at two points in time (T1, scene; T2, arrival in emergency department). The calculability of the Mainz Emergency Evaluation Score (MEES, embracing seven vital parameters) was investigated. The calculability of the Revised Trauma Score (RTS) was also determined for all trauma patients (n=408). Fisher's exact test was used to compare differences in ratios at T1 versus T2. RESULTS: The documentation ratios of vital parameters ranged from 99.33% (Glasgow Coma Scale, T1) to 40.31% (respiratory rate, T2). The calculability of the MEES was poor (all missions: 28.31%, T1; 22.40%, T2; p<0.001). In missions that required cardiopulmonary resuscitation (n=87), the MEES was calculable in 9.20% of patients at T1 and 29.89% at T2 (p<0.001). In trauma missions, the RTS was calculable in 37.26% at T1 and 27.70% at T2 (p=0.004). CONCLUSIONS: Documentation of vital parameters is carried out incompletely, and documentation of respiratory rate is particularly poor, making calculation of accepted emergency scores infeasible for a significant fraction of a given test population. The suitability of paper-based documentation is therefore limited. Electronic documentation that includes real-time plausibility checks might improve data quality. Further research is warranted.