[Heat-related morbidity: real-time surveillance via rescue service operations data from the interdisciplinary care capacity proof system (IVENA)]. / Hitzeassoziierte Morbidität: Surveillance in Echtzeit mittels rettungsdienstlicher Daten aus dem Interdisziplinären Versorgungsnachweis (IVENA).

BACKGROUND: In addition to mortality data, hospital admission, emergency department visits, and emergency service calls data are used for the surveillance of heat-related morbidity. We report on heat-associated morbidity in Frankfurt am Main from 2014-2018 using the web-based care capacity proof system (IVENA) of the rescue service operations. MATERIAL AND METHODS: In the web-based IVENA system, all patients with prehospital emergency care are recorded in real time. The rescue service operations were evaluated in the summer months (June-August) from 2014-2018 in Frankfurt am Main as a whole and separately according to various heat-related diagnoses. The current temperature data of the Frankfurt East measuring station were obtained online as hourly values from the website of the Hessian Institute for Nature Conservation, Environment and Geology ( www.hlnug.de ). Temperature maxima ≥32 ℃ for at least 5 days were defined as a "heatwave." RESULTS: From 2014-2018, three heatwaves occurred according to the definition above: in 2015, 2016, and 2018, with an extremely long heat period in 2018 (17 days). During the heatwave in 2015, the highest excess morbidity was noted: +17% total ambulance service operations and +198% emergency service operations due to heat-related disease disorders. The evaluation of the long heat period in 2018 showed that with increasing duration of the heat period, the emergency rescue service operations due to total heat-associated morbidity remained high with increasing emergency service operations due to exsiccosis and unclear fever. CONCLUSION: The data obtained by the IVENA system enable a current and complete assessment of severe acute diseases in the city or in the respective rescue service area in real time. Health effects of heat events can thus be investigated in real time and the system can be used as an early warning system for prevention.

[Health Impact of the Heatwave of 2015: Hospital Admissions in Frankfurt/Main, Germany]. / Morbidität durch Hitze ­ eine Analyse der Krankenhauseinweisungen per Rettungseinsatz während einer Hitzewelle 2015 in Frankfurt/Main.

Heatwaves are gaining in importance due to increasing climatic changes. They can impair health and increase mortality. A comparison of studies is difficult because of differences in the definition of a heatwave used and/or different populations studied. In this study, morbidity data were collected using the web-based IVENA system. This system registers hospital admissions with diagnosis by the emergency medical services. We analysed hospital admissions in Frankfurt/Main during June-August of 2014-2016. These periods included a heatwave in July 2015 (per definition>32°C for at least 5 days/more than 4 days). On days with "heatwave", there was a 22% increase in hospital admissions of patients brought in by the emergency services (excess morbidity). Considering only "heat-related diagnosis", the increase was 300%. In addition to the increase in hospital admissions on "heatwave" days, there was also a direct correlation between temperature and hospital admissions over the summer days. Using the data on hospital admission of patients brought in by the emergency services turned out to be a valid marker for "heat morbidity".