Validity and risk factor analysis for helicopter emergency medical services in Japan: a pilot study
Dublin Core
Title
Validity and risk factor analysis for helicopter emergency medical services in Japan: a pilot study
Subject
HEMS dispatch, Prediction, Validity of dispatch
Description
Background: Some emergency departments use triage scales, such as the Canadian Triage and Acuity Scale and
Japan Urgent Stroke Triage Score, to detect life-threatening situations. However, these protocols have not been
used for aeromedical services. Therefore, we investigated the factors predicting these life-threatening situations in
aeromedical services as a pilot study for establishing the protocol.
Method: We retrospectively evaluated helicopter emergency medical service cases from 1 April 2015 to 31 March
2020 at Gifu University Hospital using the mission records. We only evaluated cases dealing with suggested internal
medicine issues. We excluded cases influenced by external factors such as trauma or cases that included hospitalto-hospital transportation, focusing only on prehospital care. We evaluated the validity of the medical emergencies
based on the needs for emergency interventions and hospital admission and of the suggested diagnoses and
associated risk factors.
Result: A total of 451 cases were suitable for inclusion in the study. In the analysis for all emergency calls, 235
(52.11%) cases needed emergency intervention and 300 (64.4%) required hospital admission. The suggested
diagnosis was valid for 261 (57.87%) cases. After the first assessment by emergency medical technicians, 75 cases
were removed. Analysis after this first assessment found that 52.31% cases required emergency intervention, 70.26%
needed admission, and the suggested diagnosis was valid for 69.41% of cases. In the analysis of emergency calls,
the multivariate analysis of some key variables identified age, playing sports, and gasping as risk factors for
emergency intervention. Hospital admission risk factors included being age only. The suggested diagnosis was valid
only for sports situations. In the analysis after the first assessment by an emergency medical technician, risk factors
for emergency intervention included being age being male, playing sports, and gasping, and those for hospital
admission was being age, being male, and experiencing stroke symptoms and/or disturbance of consciousness. The
suggested diagnosis was valid only for sports situations.
Conclusion: Some ‘second’ keywords/phrases predict medical emergencies. Therefore, the dispatch commander
should gather these keyword/phrases to assess.
Japan Urgent Stroke Triage Score, to detect life-threatening situations. However, these protocols have not been
used for aeromedical services. Therefore, we investigated the factors predicting these life-threatening situations in
aeromedical services as a pilot study for establishing the protocol.
Method: We retrospectively evaluated helicopter emergency medical service cases from 1 April 2015 to 31 March
2020 at Gifu University Hospital using the mission records. We only evaluated cases dealing with suggested internal
medicine issues. We excluded cases influenced by external factors such as trauma or cases that included hospitalto-hospital transportation, focusing only on prehospital care. We evaluated the validity of the medical emergencies
based on the needs for emergency interventions and hospital admission and of the suggested diagnoses and
associated risk factors.
Result: A total of 451 cases were suitable for inclusion in the study. In the analysis for all emergency calls, 235
(52.11%) cases needed emergency intervention and 300 (64.4%) required hospital admission. The suggested
diagnosis was valid for 261 (57.87%) cases. After the first assessment by emergency medical technicians, 75 cases
were removed. Analysis after this first assessment found that 52.31% cases required emergency intervention, 70.26%
needed admission, and the suggested diagnosis was valid for 69.41% of cases. In the analysis of emergency calls,
the multivariate analysis of some key variables identified age, playing sports, and gasping as risk factors for
emergency intervention. Hospital admission risk factors included being age only. The suggested diagnosis was valid
only for sports situations. In the analysis after the first assessment by an emergency medical technician, risk factors
for emergency intervention included being age being male, playing sports, and gasping, and those for hospital
admission was being age, being male, and experiencing stroke symptoms and/or disturbance of consciousness. The
suggested diagnosis was valid only for sports situations.
Conclusion: Some ‘second’ keywords/phrases predict medical emergencies. Therefore, the dispatch commander
should gather these keyword/phrases to assess.
Creator
Noriaki Yamada , Yuichiro Kitagawa, Takahiro Yoshida, Sho Nachi, Hideshi Okada and Shinji Ogur
Publisher
BMC Emergency Medicine
Date
(2021) 21:87
Contributor
Fajar bagus W
Format
PDF
Language
Indonesia
Type
Text
Files
Collection
Citation
Noriaki Yamada , Yuichiro Kitagawa, Takahiro Yoshida, Sho Nachi, Hideshi Okada and Shinji Ogur, “Validity and risk factor analysis for helicopter emergency medical services in Japan: a pilot study,” Repository Horizon University Indonesia, accessed November 10, 2024, https://repository.horizon.ac.id/items/show/3870.