RT Journal Article SR Electronic T1 Prone positioning in patients treated with non-invasive ventilation for COVID-19 pneumonia in an Italian emergency department JF Emergency Medicine Journal JO Emerg Med J FD BMJ Publishing Group Ltd and the British Association for Accident & Emergency Medicine SP 565 OP 566 DO 10.1136/emermed-2020-209744 VO 37 IS 9 A1 Davide Bastoni A1 Erika Poggiali A1 Andrea Vercelli A1 Elena Demichele A1 Valentina Tinelli A1 Teresa Iannicelli A1 Andrea Magnacavallo YR 2020 UL http://emj.bmj.com/content/37/9/565.abstract AB We report the experience of prone ventilation in selected patients treated with helmet non-invasive ventilation (NIV) continuous positive airway pressure (CPAP) for acute respiratory failure in COVID-19 pneumonia. Preliminary results showed an improvement in the PaO2 value and PaO2/FiO2 ratio after 1 hour of prone ventilation. No variation of the lung ultrasound pattern before and after prone ventilation has been detected. At the time of writing, we attempted proning with helmet NIV CPAP in 10 patients. In 4 out of 10 patients, the attempt failed due to lack of compliance of the patient, scarce pain control even with ongoing treatment and refusal by the patient to prone positioning.