The aim of the study is, on the one hand, to objectively investigate the patient-oriented benefits of prehospital point-of-care ultrasound (POCUS) examinations under the conditions of the helicopter emergency medical services (HEMS) in Switzerland. On the other hand, the study will show what the diagnostic quality of prehospital POCUS examinations is and how emergency medical teams can be trained to use POCUS in the future. HEMS crew members will answer a short online questionaire about how findings of their POCUS examination has influenced their medical treatment, diagnosis and selection of target hospital for the patient (primary outcome parameters). In addition, a study nurse will query the findings of the in-hospital diagnostic tests and compare them with the findings of the pre-hospital POCUS examination. This will enable the investigators to evaluate the diagnostic quality of the prehospital POCUS examination and to identify which findings are often not recognised in the POCUS. The subjective satisfaction and assessment of the benefit of the POCUS examination by the respective users will also be recorded (secondary outcome parameters).
Study Type
OBSERVATIONAL
Enrollment
1,000
We are investigating the extent to which pre-hospital point-of-care ultrasound examination influences the further deployment tactics, medical treatment and choice of destination hospital for patients.
Swiss Air Rescue Rega
Zurich, Canton of Zurich, Switzerland
RECRUITINGDiagnosis
Number of patients and clinical pictures/injuries of patients in whom the findings of prehospital POCUS influenced the further course of action with regard to diagnosis?
Time frame: During HEMS mission, estimated to be on average of 30-60 minutes
Therapeutic interventions
Number of patients and clinical pictures/injuries of patients in whom the findings of prehospital POCUS influenced the further course of action with regard to therapeutic interventions (e.g. pleural decompression, fluid therapy, medication)?
Time frame: During HEMS mission, estimated to be on average 30-60 minutes
Transportation target
Number of patients and clinical pictures/injuries of patients in whom the findings of prehospital POCUS influenced the further course of action with regard to selection of the target hospital
Time frame: During HEMS mission, estimated to be on average 30-60 minutes
Missed findings
Number of findings and which findings are missed during prehospital POCUS?
Time frame: 1 day
Users' subjective assessment
Personal assessment of the users with regard to the benefit for the patient and the applicability of prehospital POCUS on a numeric rating scale from 1 to 10 (1=no benefit, 10=maximum benefit)
Time frame: 1 day
Diagnostic quality
Interrater reliability analysis with the target size Cohen\'s kappa between POCUS findings and findings of in-hospital imaging (ultrasound, conventional X-ray, computed tomography)?
Time frame: 1 day
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