Publications by authors named "Marc Felzen"

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Point-of-care ultrasound of the common carotid arteries for detection of large vessel occlusion stroke: Results of the POCUS-LVO study.
João Pinho, Anna Tyurina, Celina Hartmann, Omar Abu Audeh, Pardes Habib, Marc Felzen

Eur Stroke J· September 2025

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Influence of professional background on assessment of simulated cardiopulmonary resuscitation videos in an observational study.
Thomas Wetzel, Jan Wienstroer, Saša Sopka, Hanna Schroeder, Marc Felzen

Sci Rep· July 2025

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Critically ill patients undergoing interhospital transportation: a prospective multicentre cohort study in the Euregio Meuse-Rhine.
Micheline Christina Dionisius Maria Florack, Ulrich Strauch, Jochen Jansen, Stephan Ortmanns, Marian Ramakers-van Kuijk, Marc Felzen

BMJ Open· June 2025

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Telemedicine for prehospital respiratory emergencies in a retrospective quality analysis.
Alexander Beierle, Syrina Beierle, Mark Pitsch, Despina Panagiotidis, Jan Larmann, Marc Felzen

Sci Rep· May 2025

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Comparison of the diagnostic concordance of tele-EMS and EMS physicians in the emergency medical service-a subanalysis of the TEMS-trial.
Patrick P Hess, Michael Czaplik, Johanna Hess, Hanna Schröder, Stefan K Beckers, Marc Felzen

Front Digit Health· April 2025

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The impact of smartphone-dispatched CPR-trained volunteers on OHCA outcomes is influenced by patient age.
Johanna Fabianek, Marc Felzen, Kim R Riester, Stefan K Beckers, Rolf Rossaint

Sci Rep· November 2024

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Prehospital emergency anesthesia: A single-center retrospective analysis of guideline adherence and unexpected incidents.
Syrina Beierle, Alexander Beierle, Rolf Rossaint, Stefan K Beckers, Hanna Schröder, Marc Felzen

PLoS One· September 2024

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Long-term effects of a prehospital telemedicine system on structural and process quality indicators of an emergency medical service.
Hanna Schröder, Stefan K Beckers, Christina Borgs, Anja Sommer, Rolf Rossaint, Marc Felzen

Sci Rep· January 2024

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[Update tele-emergency medicine : Status quo and perspectives].
Hanna Schröder, Stefan K Beckers, Christina Borgs, Rolf Rossaint, Marc Felzen

Anaesthesiologie· July 2023

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Telemedical support for prehospital emergency medical service in severe emergencies: an open-label randomised non-inferiority clinical trial.
Ana Kowark, Marc Felzen, Sebastian Ziemann, Stephanie Wied, Michael Czaplik

Crit Care· June 2023

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Immobilization in Emergency Medical Service - Are CSR and NEXUS-Criteria Considered? A Matched-Pairs Analysis Between Trauma Patients Treated by Onsite EMS Physicians and Patients Treated by Tele-EMS Physicians.
Paula Hofstetter, Hanna Schröder, Stefan K Beckers, Christina Borgs, Rolf Rossaint, Marc Felzen

Open Access Emerg Med· May 2023

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[Quality of documentation and treatment in the non-physician staffed ambulance: a retrospective analysis of emergency protocols from the city of Aachen].
Maximilian Klein, Hanna Schröder, Stefan K Beckers, Christina Borgs, Rolf Rossaint, Marc Felzen

Anaesthesiologie· September 2022

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Shedding light into the black box of out-of-hospital respiratory distress-A retrospective cohort analysis of discharge diagnoses, prehospital diagnostic accuracy, and predictors of mortality.
Patrick Spörl, Stefan K Beckers, Rolf Rossaint, Marc Felzen, Hanna Schröder

PLoS One· August 2022

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Augmented Reality for Guideline Presentation in Medicine: Randomized Crossover Simulation Trial for Technically Assisted Decision-making.
Andreas Follmann, Alexander Ruhl, Michael Gösch, Marc Felzen, Rolf Rossaint

JMIR Mhealth Uhealth· October 2021

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Tele-EMS physicians improve life-threatening conditions during prehospital emergency missions.
Hanna Schröder, Stefan K Beckers, Klaudia Ogrodzki, Christina Borgs, Sebastian Ziemann, Marc Felzen

Sci Rep· July 2021

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[Evaluation of the project for the introduction of bystander resuscitation in schools in North Rhine-Westphalia].
Marc Felzen, Hanna Schröder, Stefan K Beckers, Bernd W Böttiger, Nadine Rott

Anaesthesist· May 2021

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Implementation of a full-scale prehospital telemedicine system: evaluation of the process and systemic effects in a pre-post intervention study.
Sebastian Bergrath, Jörg Christian Brokmann, Stefan Beckers, Marc Felzen, Michael Czaplik

BMJ Open· March 2021

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Comparing the diagnostic concordance of tele-EMS and on-site-EMS physicians in emergency medical services: a retrospective cohort study.
Lina T M Quadflieg, Stefan K Beckers, Sebastian Bergrath, Ann-Katrin Brockert, Hanna Schröder, Marc Felzen

Sci Rep· October 2020

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Utilization, Safety, and Technical Performance of a Telemedicine System for Prehospital Emergency Care: Observational Study.
Marc Felzen, Stefan Kurt Beckers, Felix Kork, Frederik Hirsch, Sebastian Bergrath

J Med Internet Res· October 2019

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Improved technical performance of a multifunctional prehospital telemedicine system between the research phase and the routine use phase - an observational study.
Marc Felzen, Jörg C Brokmann, Stefan K Beckers, Michael Czaplik, Frederik Hirsch

J Telemed Telecare· April 2017

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[Not Available].
Jörg C Brokmann, Marc Felzen, Stefan K Beckers, Michael Czaplik, Frederik Hirsch

Anasthesiol Intensivmed Notfallmed Schmerzther· February 2017

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Acute and sustained effects of methylphenidate on cognition and presynaptic dopamine metabolism: an [18F]FDOPA PET study.
Ina Schabram, Karsten Henkel, Siamak Mohammadkhani Shali, Claudia Dietrich, Jörn Schmaljohann, Marc Felzen

J Neurosci· October 2014

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Smartphone apps for cardiopulmonary resuscitation training and real incident support: a mixed-methods evaluation study.
Marco Kalz, Niklas Lenssen, Marc Felzen, Rolf Rossaint, Bernardo Tabuenca

J Med Internet Res· March 2014

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Remote ischaemic preconditioning for heart surgery. The study design for a multi-center randomized double-blinded controlled clinical trial--the RIPHeart-Study.
Patrick Meybohm, Kai Zacharowski, Jochen Cremer, Jan Roesner, Frank Kletzin, Marc Felzen

Eur Heart J· June 2012

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Technical and organisational feasibility of a multifunctional telemedicine system in an emergency medical service - an observational study.
Sebastian Bergrath, Daniel Rörtgen, Rolf Rossaint, Stefan K Beckers, Harold Fischermann, Marc Felzen

J Telemed Telecare· March 2012

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