Characteristics of the most severely ill and injured patients in a Norwegian helicopter emergency medical service: a retrospective cohort study

Abstract Background Physician-staffed helicopter emergency medical services (HEMS) are dispatched to a variety of incidents, ranging from less serious to life-threatening. The skillset of a physician may be important to provide appropriate care for the most critically ill and severely injured patien...

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Main Authors: Eirik Ringen, Helge Haugland, Jostein Rødseth Brede
Format: Article
Language:English
Published: BMC 2024-03-01
Series:BMC Emergency Medicine
Subjects:
Online Access:https://doi.org/10.1186/s12873-024-00954-7
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author Eirik Ringen
Helge Haugland
Jostein Rødseth Brede
author_facet Eirik Ringen
Helge Haugland
Jostein Rødseth Brede
author_sort Eirik Ringen
collection DOAJ
description Abstract Background Physician-staffed helicopter emergency medical services (HEMS) are dispatched to a variety of incidents, ranging from less serious to life-threatening. The skillset of a physician may be important to provide appropriate care for the most critically ill and severely injured patients. A better understanding of these patients may therefore be important to optimize dispatch criteria, training, and equipment setups for HEMS units. The aim of this study was to describe the characteristics of patients with the national advisory committee on aeronautics (NACA) score 5 and 6, primarily by diagnostic group and interventions performed. Methods Retrospective cohort study on aggregated data from the HEMS-base in Trondheim, Norway. All patients with NACA score 5 and 6 in the 10-year period from 2013 to 2022 were included. Patients with return of spontaneous circulation (ROSC) after successful cardiopulmonary resuscitation were described separately from non-cardiac arrest patients. Results Out of 9546 patient encounters, 2598 patients were included, with 1640 in the NACA 5 and 958 in NACA 6 group. Patient age was median 63 (interquartile range 45–74) and 64% of the patients were male. Post-ROSC patients accounted for 24% of patients. Of the non-cardiac arrest patients, the most frequent aetiology was trauma (16%), cardiac (15%), neurologic (14%) and respiratory (11%). The most common physician-requiring advanced interventions were general anaesthesia (22%), intubation (21%), invasive blood pressure monitoring (21%) and ventilator treatment (18%). The mean number of advanced interventions per mission were consistent during the study period (1,78, SD 0,25). Conclusion Twenty-seven percent of all HEMS dispatches were to NACA 5 and 6 patients. Twenty-four percent of these were post-ROSC patients. Sixty-three percent of all patients received at least one advanced physician-requiring intervention and the average number of interventions were consistent during the last 10 years. Hence, the competence a physician-staffed HEMS resource provide is utilized in a high number of critically ill and injured patients.
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spelling doaj.art-215ec78b13cb44f88d2c3343bb0ddb1b2024-03-05T17:53:25ZengBMCBMC Emergency Medicine1471-227X2024-03-012411810.1186/s12873-024-00954-7Characteristics of the most severely ill and injured patients in a Norwegian helicopter emergency medical service: a retrospective cohort studyEirik Ringen0Helge Haugland1Jostein Rødseth Brede2Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, St. Olavs HospitalDepartment of Emergency Medicine and Pre-hospital Services, St. Olavs University HospitalDepartment of Emergency Medicine and Pre-hospital Services, St. Olavs University HospitalAbstract Background Physician-staffed helicopter emergency medical services (HEMS) are dispatched to a variety of incidents, ranging from less serious to life-threatening. The skillset of a physician may be important to provide appropriate care for the most critically ill and severely injured patients. A better understanding of these patients may therefore be important to optimize dispatch criteria, training, and equipment setups for HEMS units. The aim of this study was to describe the characteristics of patients with the national advisory committee on aeronautics (NACA) score 5 and 6, primarily by diagnostic group and interventions performed. Methods Retrospective cohort study on aggregated data from the HEMS-base in Trondheim, Norway. All patients with NACA score 5 and 6 in the 10-year period from 2013 to 2022 were included. Patients with return of spontaneous circulation (ROSC) after successful cardiopulmonary resuscitation were described separately from non-cardiac arrest patients. Results Out of 9546 patient encounters, 2598 patients were included, with 1640 in the NACA 5 and 958 in NACA 6 group. Patient age was median 63 (interquartile range 45–74) and 64% of the patients were male. Post-ROSC patients accounted for 24% of patients. Of the non-cardiac arrest patients, the most frequent aetiology was trauma (16%), cardiac (15%), neurologic (14%) and respiratory (11%). The most common physician-requiring advanced interventions were general anaesthesia (22%), intubation (21%), invasive blood pressure monitoring (21%) and ventilator treatment (18%). The mean number of advanced interventions per mission were consistent during the study period (1,78, SD 0,25). Conclusion Twenty-seven percent of all HEMS dispatches were to NACA 5 and 6 patients. Twenty-four percent of these were post-ROSC patients. Sixty-three percent of all patients received at least one advanced physician-requiring intervention and the average number of interventions were consistent during the last 10 years. Hence, the competence a physician-staffed HEMS resource provide is utilized in a high number of critically ill and injured patients.https://doi.org/10.1186/s12873-024-00954-7Helicopter emergency medical service (HEMS)Return of spontaneous circulation (ROSC)National committee for aeronautics (NACA)Pre hospital interventionsCritically ill
spellingShingle Eirik Ringen
Helge Haugland
Jostein Rødseth Brede
Characteristics of the most severely ill and injured patients in a Norwegian helicopter emergency medical service: a retrospective cohort study
BMC Emergency Medicine
Helicopter emergency medical service (HEMS)
Return of spontaneous circulation (ROSC)
National committee for aeronautics (NACA)
Pre hospital interventions
Critically ill
title Characteristics of the most severely ill and injured patients in a Norwegian helicopter emergency medical service: a retrospective cohort study
title_full Characteristics of the most severely ill and injured patients in a Norwegian helicopter emergency medical service: a retrospective cohort study
title_fullStr Characteristics of the most severely ill and injured patients in a Norwegian helicopter emergency medical service: a retrospective cohort study
title_full_unstemmed Characteristics of the most severely ill and injured patients in a Norwegian helicopter emergency medical service: a retrospective cohort study
title_short Characteristics of the most severely ill and injured patients in a Norwegian helicopter emergency medical service: a retrospective cohort study
title_sort characteristics of the most severely ill and injured patients in a norwegian helicopter emergency medical service a retrospective cohort study
topic Helicopter emergency medical service (HEMS)
Return of spontaneous circulation (ROSC)
National committee for aeronautics (NACA)
Pre hospital interventions
Critically ill
url https://doi.org/10.1186/s12873-024-00954-7
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