Live Stream of Prehospital Emergency Ultrasound in Patients With Acute Dyspnoea

Background: Acute dyspnoea is a common symptom in prehospital emergency medicine. As ultrasound gained in importance for diagnosis in patients with acute respiratory distress, it plays even a role in the prehospital setting. However, prehospital emergency ultrasound (PEU) remains challenging and requires knowledge and skills. New prehospital ultrasound devices offer the possibility for tele-supervision. The impact of tele-supervision of PEU in patients with acute dyspnoea is unclear. Objective: This prospective observational study aims to evaluate the effect of PEU with tele-supervision on diagnosis, treatment strategies and cognitive load in comparison to PEU without tele-supervision in patients with acute dyspnoea. Methods: In total 350 prehospital emergency patients with acute dyspnoea will be included in this study. Patients will be observed in two groups. In group 1 PEU will be performed with tele-supervision, whereas in group 2 PEU will be performed without tele-supervision (tele-supervision not available).

Inclusion Criteria: Patients will be included, if they suffer from acute dyspnoea and at least one of the two following signs of respiratory failure: * Respiratory rate \>20 breaths per minute * Peripheral oxygen saturation without oxygen supplementation \<90% Exclusion Criteria: * under the age of 18 * if PEU will lead to a delay of live-saving treatment or transportation * if patient rejects the PEU, the patient will be excluded