Access to automated external defibrillators and first responders: Associations with socioeconomic factors and income inequality at small spatial scales.

Aim: The 2021 European Resuscitation Council (ERC) guidelines recommend two automated external defibrillators (AEDs)/km2 and at least 10 first responders/km2. We examined 1) access to AEDs and volunteer first responders in line with these guidelines and 2) its associations with socioeconomic factors and income inequality, focusing on small spatial scales. Method: We considered data on 776 AEDs in February 2022 and 1,173 out-of-hospital cardiac arrests (OHCAs) including 713 OHCA with app-alerted volunteer first responders from February to September 2022 in Berlin. We fit multilevel models to analyse AED area coverage and Poisson models to examine first responder availability across 12 districts and 536 neighbourhoods. Results: Median AED area coverage according to the 2021 ERC guidelines was 43.1% (interquartile range (IQR) 2.3-87.2) at the neighbourhood level and median number of available first responders per OHCA case was one (IQR 0.0-1.0). AED area coverage showed a positive association with average income tax per capita, with better coverage in the highest compared to the lowest quartile neighbourhoods (coefficient: 0.13, 95% confidence interval (CI): 0.01-0.25). First responder availability was not associated with income tax. AED area coverage and first responder availability were positively associated with income inequality, with better coverage (coefficient: 0.13, 95% CI: 0.04-0.23) and availability (rate ratio: 1.31, 95% CI: 1.03-1.67) in quartiles of highest as compared to lowest inequality. Conclusion: Access to resuscitation resources is neither equitable nor in accordance with the 2021 ERC guidelines. Ensuring better access necessitates understanding of socioeconomic factors and income inequality at small spatial scales.

Increasing emergency number utilisation is not driven by low-acuity calls: an observational study of 1.5 million emergency calls (2018-2021) from Berlin.

BACKGROUND: The Emergency Medical Service (EMS) in Germany is increasingly challenged by strongly rising demand. Speculations about a greater utilisation for minor cases have led to intensive media coverage, but empirical evidence is lacking. We investigated the development of low-acuity calls from 2018 to 2021 in the federal state of Berlin and its correlations with sociodemographic characteristics. METHODS: We analysed over 1.5 million call documentations including medical dispatch codes, age, location and time using descriptive and inferential statistics and multivariate binary logistic regression. We defined a code list to classify low-acuity calls and merged the dataset with sociodemographic indicators and data on population density. RESULTS: The number of emergency calls (phone number 112 in Germany) increased by 9.1% from 2018 to 2021; however, the proportion of low-acuity calls did not increase. The regression model shows higher odds of low-acuity for young to medium age groups (especially for age 0-9, OR 1.50 [95% CI 1.45-1.55]; age 10-19, OR 1.77 [95% CI 1.71-1.83]; age 20-29, OR 1.64 [95% CI 1.59-1.68] and age 30-39, OR 1.40 [95% CI 1.37-1.44]; p < 0.001, reference group 80-89) and for females (OR 1.12 [95% CI 1.1-1.13], p < 0.001). Odds were slightly higher for calls from a neighbourhood with lower social status (OR 1.01 per index unit increase [95% CI 1.0-1.01], p < 0.05) and at the weekend (OR 1.02 [95% CI 1.0-1.04, p < 0.05]). No significant association of the call volume with population density was detected. CONCLUSIONS: This analysis provides valuable new insights into pre-hospital emergency care. Low-acuity calls were not the primary driver of increased EMS utilisation in Berlin. Younger age is the strongest predictor for low-acuity calls in the model. The association with female gender is significant, while socially deprived neighbourhoods play a minor role. No statistically significant differences in call volume between densely and less densely populated regions were detected. The results can inform the EMS in future resource planning.

[Pre-emptive emergency service-Preventive missions and promotion of health literacy at the intersections with emergency medical services]. / Vorbeugender Rettungsdienst ­ präventive Ansätze und Förderung von Gesundheitskompetenz an den Schnittstellen zur Notfallrettung.

In the Emergency Medical Service Acts of the Federal States, the statements in these Acts have so far essentially been limited to the implementation of measures to maintain the health of emergency patients and to transport them to a suitable hospital. Preventive fire protection, on the other hand, is regulated in the Fire Brigade Acts or by statutory ordinances. Increasing numbers of emergency service missions and a lack of facilities for alternative care justify the need for a preventive emergency service. This includes all measures that take place before an event occurs in order to prevent emergencies from occurring. As a result, the risk of an emergency event leading to the emergency call 112 should be reduced or delayed. The preventive rescue service should also help to improve the outcome of medical care for patients. Furthermore, it should be made possible to provide those seeking help with a suitable form of care at an early stage.

[Prehospital perimortem cesarean section during cardiopulmonary resuscitation for traumatic cardiac arrest : Case report and lessons learned]. / Präklinische perimortale Crash-Sectio im Rahmen einer Traumareanimation : Fallbericht mit Darstellung gewonnener Erkenntnisse.

The following case report discusses the resuscitation of a pregnant woman in traumatic cardiac arrest after a fall from a height with consecutive resuscitative hysterotomy for maternal and fetal salvage. The report illustrates all lessons learned from critical appraisal amid new guideline recommendations and gives an overview of the published literature on the matter. Despite extensive resuscitation efforts, ultimately both the mother and the newborn were pronounced life extinct at the scene. Prehospital treatment of (traumatic) cardiac arrest in a pregnant patient as well as performing a perimortem cesarean section remain infrequent but challenging scenarios.

[Quo vadis joint emergency dispatch system?] / Quo vadis, gemeinsames Notfallleitsystem?: Standardisierte Notrufabfrage in der Berliner Leitstelle.

The call volume in emergency medical service (EMS) dispatch centers has seen a drastic increase for many years now, especially looking at urban regions of Germany. In this context, the control mechanisms of the EMS dispatch center can be utilized to break new ground regarding the handling of emergency calls and dispatch practice in order to manage incoming calls as efficiently as possible. This article clearly explains standardized protocol-based emergency medical call taking, internal structuring of control centers and pathways, also during the COVID-19 pandemic, using the Berlin EMS dispatch center as an example. The terms structured and standardized protocol-based emergency medical call taking should be differentiated, whereby the standardized call taking process is more binding and based on international standards with high reliability. Quality management measures ensure that the protocol is applied in accordance with the regulations. Improved collaboration and automated transfer of data between EMS dispatch centers and the control centers for non-life-threatening physician on-call services enable low-priority calls to be forwarded on a regular basis. Interprofessional teams in EMS can improve the care of specific patient groups in a targeted manner and avoid transport to emergency departments. Standardized protocol-based and software-based emergency call taking currently represents best practice according to medical science, supporting a nationwide implementation. Furthermore, an intensive collaboration between EMS control centers and control centers for non-life-threatening physician on-call services is recommended as well as the introduction of specialized EMS resources and app-based alerting of first responders.

Public Access Defibrillators and Socioeconomic Factors on the Small­Scale Spatial Level in Berlin­a Cross-Sectional Analysis

BACKGROUND: The use of a public access defibrillator (PAD) increases the probability of surviving an out-of-hospital cardiac arrest (OHCA). No strategies exist, however, for the optimal distribution of PADs in an urban area in order to meet existing needs and ensure equal access for all potential users. It thus seems likely that the accessibility of PADs on the spatial level varies widely as a function of living circumstances. METHODS: This cross-sectional study is based on registry data concerning PAD (2022, n = 776) and OHCA (2018-2020, n = 4051), along with data on socioeconomic factors on the spatial level in Berlin (12 districts and 137 subdistricts). Associations of socioeconomic factors with the number of PADs per 10 000 inhabitants and the PAD coverage rate of sites of previous OHCAs were investigated. RESULTS: The median number of PADs per 10 000 inhabitants ranged from 0.46 to 2.67 at the district level, and only five districts had a median PAD coverage rate of sites of previous OHCAs above 0%, after aggregation of the analyses at the subdistrict level. Subdistricts with a more favorable economic status and a greater income disparity had a higher PAD density. Socially disadvantaged subdistricts had no association with PAD density. CONCLUSION: There are large deficits in the distribution of PADs at the small-scale spatial level in Berlin with respect to the goals of meeting existing needs and ensuring equal access for all potential users. The findings presented here will be of importance for the planning of future PAD programs so that the distributional efficiency and fairness of PAD in urban areas can be improved.

[Knowledge gained from a 31-h power outage in Berlin Köpenick-medical problems and challenges]. / Erkenntnisse aus 31 Stunden Stromausfall in Berlin Köpenick ­ medizinische Schwerpunkte und Herausforderungen.

On 19 February 2019 the severance of a 110kW cable caused an extensive electrical power cut in the Treptow-Köpenick district of Berlin. Subsequently, ca. 30,000 households were without electricity and ca. 70,000 people were affected. The power cut lasted more than 24h and all those involved were faced with a multitude of challenges. An operational command post was set up in which medical problems had to be continuously identified and re-evaluated. These included the identification of patients particularly at risk, such as home-ventilated patients and patients with artificial hearts. Furthermore, individual nursing homes had to be evacuated. During the procedure it was necessary to evacuate an intensive care ward or intermediate care ward with 23 patients due to the loss of power supply in the affected area. Hospitals must be prepared for such scenarios within the framework of preliminary planning. Furthermore, preliminary planning containing the special needs of vulnerable groups must be carried out on the part of the responsible authorities.

[COVID-19 Stress test for ensuring emergency healthcare: strategy and response of emergency medical services in Berlin]. / COVID-19-Stresstest für die Sicherstellung der Notfallversorgung: Strategie und Maßnahmen der Notfallrettung in Berlin.

BACKGROUND: The COVID-19 pandemic represents an unprecedented severe test for emergency medicine in Germany. In addition to in-hospital emergency medicine, prehospital emergency medicine has the decisive task of fully guaranteeing emergency medical healthcare. In this article the Berlin Fire Brigade shows new ways for emergency medical services to fulfil these increased responsibilities during the pandemic in prehospital emergency medicine in the State of Berlin. METHODS: A systematic presentation of the challenges and conceptional responses of preclinical emergency medicine to the COVID-19 pandemic was carried out using the example of the emergency medical services in the State of Berlin. RESULTS: The Berlin Fire Brigade has a dispatch center that coordinates all requests for assistance in the State of Berlin over the emergency telephone number 112. On average a total of 2565 emergency calls are received every 24 h, from which 1271 missions are generated. During the pandemic there was a striking increase in missions to patients with acute respiratory diseases (ARD). Of the missions 11% were carried out to patients with the suspicion of COVID-19. The duration of the emergency calls was extended on average by 1:36 min due to the additional questions in the pandemic protocol and the duration of the mission by an average of 17 min with the additional alarm keyword acute respiratory disease (ARD). CONCLUSION: The continuing pandemic reveals that tasks and responsibilities of public services in emergency rescue go far beyond the immediate medical prevention of danger to life and limb. In addition to the controller and triage functions in the integrated dispatch center of the Berlin Fire Brigade (112), the emergency and healthcare measures could be ensured. This was accomplished by comprehensive measures for situation control, situation reports and mastering situations despite the lack of alternative outpatient care options, especially in the areas of general practitioner, public health care and medical specialist practices.

The Emergency Medical Care of Patients With Acute Myocardial Infarction.

BACKGROUND: Optimizing the emergency medical care chain might shorten the time to treatment of patients with ST-elevation myocardial infarction (STEMI). The initial care by a physician, and, in particular, correct ECG interpretation, are critically important factors. METHODS: From 1999 onward, data on the care of patients with myocardial infarction have been recorded and analyzed in the Berlin Myocardial Infarction Registry. In the First Medical Contact Study, data on initial emergency medical care were obtained on 1038 patients who had been initially treated by emergency physicians in 2012. Their pre-hospital ECGs were re-evaluated in a blinded fashion according to the criteria of the European Society of Cardiology. RESULTS: The retrospective re-evaluation of pre-hospital ECGs revealed that 756 of the 1038 patients had sustained a STEMI. The emergency physicians had correctly diagnosed STEMI in 472 patients (62.4%), and they had correctly diagnosed ventricular fibrillation in 85 patients (11.2%); in 199 patients (26.3%), the ECG interpretation was unclear. The pre-hospital ECG interpretation was significantly associated with the site of initial hospitalization and the ensuing times to treatment. In particular, the time from hospital admission to cardiac catheterization was longer in patients with an unclear initial ECG interpretation than in those with correctly diagnosed STEMI (121 [54; 705] vs. 36 [19; 60] minutes, p <0.001). After multivariate adjustment, this corresponded to a hazard ratio* of 2.67 [2.21; 3.24]. CONCLUSION: Pre-hospital ECG interpretation in patients with STEMI was a trigger factor with a major influence on the time to treatment in the hospital. The considerable percentage of pre-hospital ECGs whose interpretation was unclear implies that there is much room for improvement.

Results of in-hospital triage in 17 mass casualty trainings: underestimation of life-threatening injuries and need for re-triage.

BACKGROUND: In-hospital triage is the key factor for successful management of an overwhelming number of patients in lack of treatment capacity. The main goal of in-hospital triage is to identify casualties with life-threatening injuries and to allocate immediate medical aid. For the first time, we evaluate the quality of in-hospital triage in the German capital Berlin. METHODS: In this prospective observational study of 17 unheralded external mass casualty trainings for Berlin disaster hospitals in 2010/2011, we analyzed the in-hospital triage of 601 rouged casualty actors. Evaluation was performed by structured external survey and interview of the casualty actors after the disaster training. In 93 percent (n = 558), complete data were available and suitable for statistical analysis. RESULTS: The primary triage category was allocated correctly to 61 percent (n = 338) of the simulated injury severity. The following measurements were performed: anamnesis in 77 percent, physical examination 71 percent, blood pressure in 68 percent, heart rate in 61 percent, and oxygen saturation in 25 percent. Additive radiological diagnostics were used: 38 percent X-ray, 16 percent computer tomography, and 7 percent ultrasound. On an average, 1.6 ± 1.2 diagnostic tools were used to allocate injury severity to rouged casualties. Of all the rouged casualties, 24 percent overtriage and 16 percent undertriage were observed. Overtriage was significantly infrequent in level I trauma centers (p = 0.03). Of the patients with life-threatening injuries, 18 percent was undertriaged. Of the 62 percent with secondary right allocation to triage category, re-triage was only used in 4 percent. CONCLUSION: The accuracy of in-hospital triage is low (61 percent). Predominately, the problem of overtriage (24 percent) due to insufficient triage training in contrast to undertriage (16 percent) occurs. The diagnostic triage adjuncts, ultrasound and re-triage, should be routinely used to lower the rate of undetected life threat in mass casualty incidents. Furthermore, a standardized training program and triage algorithm for in-hospital triage should be established.