Point-of-care Ultrasound in Prehospital Dyspnea

Study Overview
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Brief Summary
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Point-of-care ultrasound in patients with dyspnoea has been shown to alter patient treatment and the time to correct treatment when performed in emergency departments. In Denmark, physician-staffed ambulances are sent to citizens with severe ABCD symptoms including dyspnoea. Hence, there is a potential for correct diagnostics and appropriate treatment already in the citizens' own home or en route to the hospital. This study aims to evaluate the clinical performance of prehospital point-of-care ultrasound in patients with dyspnoea.

Official Title
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Point-of-care Ultrasound in Prehospital Dyspnea: Game-changer or Gaming-gadgets?

Conditions
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Dyspnea

Intervention / Treatment
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* Diagnostic Test: Point-of-care ultrasound


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: age >/= 18 years dyspnea as a dominating complaint At least one of respiratory frequency >25/minute oxygen saturation < 95% oxygen therapy initiated Exclusion Criteria: trama patients prior enrollment

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Intervention/Treatment |
| --- |
|Diagnostic Test: Point-of-care ultrasound|Focused ultrasound of the heart, lungs and pleurae|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Sensitivity for diagnosing heart failure | Change in sensitivity for diagnosing heart failure when adding point-of-care ultrasound to the clinical examination | From initial citizen contact to end of ultrasound examination within 15 minutes | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Sensitivity, clinical exam | Sensitivity of clinical examination for for diagnosing heart failure. Held up against a post-hoc expert panel statement. | From initial citizen contact and within a time-span of 15 minutes | 
| Sensitivity, Ultrasound examination | Sensitivity of clinical examination supplemented with ultrasound scan for diagnosing heart failure. Held up against a post-hoc expert panel statement. | From initial citizen contact and within a time-span of 15 minutes | 
| Treatment changes in medicine caused by ultrasound examination | Changes in medical treatment including diuretics, nitric oxide, bronkodilation and steroids caused by the addition of an ultrasound scan | From initial citizen contact and within a time-span of 15 minutes | 
| Treatment changes in ventilation caused by ultrasound examination | Treatment changes ventilatory strategy including nasal cannula oxygen therapi, face mask or non-invasive positive pressure ventilation caused by the addition of an ultrasound scan | From initial citizen contact and within a time-span of 15 minutes | 
| Triage changes caused by ultrasound examination | Change in the department or hospital that the patient is sent to as a cause of an ultrasound scan | From initial citizen contact and within a time-span of 60 minutes |