Angelo Auricchio1, Lorenzo Gianquintieri2, Roman Burkart3, Claudio Benvenuti3, Sandro Muschietti4, Stefano Peluso5, Antonietta Mira6, Tiziano Moccetti7, Maria Luce Caputo8. 1. Cardiocentro Ticino, Lugano, Switzerland; Fondazione Ticino Cuore, Breganzona, Switzerland. Electronic address: angelo.auricchio@cardiocentro.org. 2. Fondazione Ticino Cuore, Breganzona, Switzerland; Department of Electronics, Information and Bioengineering, Politecnico di Milano, Milan, Italy. 3. Fondazione Ticino Cuore, Breganzona, Switzerland. 4. Federazione Cantonale Ticinese Servizi Autoambulanze, Lugano, Switzerland. 5. Data Science Lab, Institute of Computational Science, Università della Svizzera Italiana, Lugano, Switzerland; Department of Statistical Sciences, Università Cattolica del Sacro Cuore, Milan, Italy. 6. Data Science Lab, Institute of Computational Science, Università della Svizzera Italiana, Lugano, Switzerland; Department of Science and High Technology, Università dell'Insubria, Italy. 7. Cardiocentro Ticino, Lugano, Switzerland; Fondazione Ticino Cuore, Breganzona, Switzerland. 8. Cardiocentro Ticino, Lugano, Switzerland; Department of Molecular Medicine, University of Pavia, Coronary Care Unit and Cardiovascular Clinical Research Center, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy.
Abstract
AIM OF THE STUDY: To investigate the distance covered by lay first responders (LFR) alerted for an out-of- hospital cardiac arrest (OHCA), evaluate the time elapsed between mission acceptance and arrival at the OHCA site, as well as the distance between the LFRs to the closest automatic external defibrillator (AED). METHODS: The LFR route, thus time, distance information, and the average speed of each responder were estimated. The same methodology was used to calculate the distance between the closest AED and the LFRs, as well as the distance between the AED and OHCA site. RESULTS: Between June 1st, 2014 and December 31st, 2017, the LFR network was activated in occasion of 484 suspected OHCAs. 710 LFRs were automatically selected by the application and accepted the mission. On average 1.5 LFRs arrived at the OHCA site. LFRs covered a distance of 1196 m (IQR 596-2314) at a median speed of 6.9 m/s (IQR 4.5-9.8) or 24.8 Km/h. In 4.4% of the cases the speed of the LFRs was compatible with a brisk walk activity (<1.5 m/sec). The total intervention time of an LFR, who first retrieved an AED and then went to the OHCA site, was longer (275 s, IQR: 184 s-414 s) compared to the total intervention time of a LFR (197 s, IQR: 120 s-306 s; p < 0.001), who went to the OHCA site directly without retrieving an AED. CONCLUSIONS: The dispatch of LFRs directly to the OHCA site instead of first retrieving the AED, significantly decreases the time to CPR initiation. More studies are needed to assess the prognostic implications on survival and neurological outcome.
AIM OF THE STUDY: To investigate the distance covered by lay first responders (LFR) alerted for an out-of- hospital cardiac arrest (OHCA), evaluate the time elapsed between mission acceptance and arrival at the OHCA site, as well as the distance between the LFRs to the closest automatic external defibrillator (AED). METHODS: The LFR route, thus time, distance information, and the average speed of each responder were estimated. The same methodology was used to calculate the distance between the closest AED and the LFRs, as well as the distance between the AED and OHCA site. RESULTS: Between June 1st, 2014 and December 31st, 2017, the LFR network was activated in occasion of 484 suspected OHCAs. 710 LFRs were automatically selected by the application and accepted the mission. On average 1.5 LFRs arrived at the OHCA site. LFRs covered a distance of 1196 m (IQR 596-2314) at a median speed of 6.9 m/s (IQR 4.5-9.8) or 24.8 Km/h. In 4.4% of the cases the speed of the LFRs was compatible with a brisk walk activity (<1.5 m/sec). The total intervention time of an LFR, who first retrieved an AED and then went to the OHCA site, was longer (275 s, IQR: 184 s-414 s) compared to the total intervention time of a LFR (197 s, IQR: 120 s-306 s; p < 0.001), who went to the OHCA site directly without retrieving an AED. CONCLUSIONS: The dispatch of LFRs directly to the OHCA site instead of first retrieving the AED, significantly decreases the time to CPR initiation. More studies are needed to assess the prognostic implications on survival and neurological outcome.
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Authors: Angelo Auricchio; Maria Luce Caputo; Enrico Baldi; Catherine Klersy; Claudio Benvenuti; Roberto Cianella; Gaetano Maria De Ferrari; Tiziano Moccetti Journal: Resusc Plus Date: 2020-11-05