Martins, Sara RaquelNogué, Ramon2022-07-142022-07-142020Martins SR, Nogué R. Vertical displacement of pleura: a new method for bronchospasm evaluation?. Ultrasound J. 2020;12(1):42. doi:10.1186/s13089-020-00184-52524-8987http://hdl.handle.net/10400.16/2728Background: Lung ultrasonography has been increasingly recognized has a valuable diagnostic tool. In adult patients with asthma/chronic obstructive pulmonary disease and wheezing, LUS usually presents as an A/nude profile (normal profile, with sliding and A-lines, and without any abnormal findings) or at most reveals a decrease/absence of lung sliding. Therefore, until now simple point-of-care ultrasonography appeared to be unable to assess the severity of airflow limitation. Case presentation: We report the case of a woman presenting to the emergency department with an asthma exacerbation. Bedside ultrasound showed the usual A/normal profile, but also an associated vertical pleural displacement, probably secondary to hyperinflation and accessory muscle recruitment. We evaluated the described movement with M-mode and established a comparison index between end-inspiration and end-expiration, using the skin as reference. This index showed improvement and complete normalization during treatment. Conclusions: Pleural vertical displacement appears to be a sonographic alteration associated to bronchospasm and accessory muscle recruitment. It is easily identifiable and measurable on LUS, thus possibly representing a new method to evaluate bronchospasm and monitoring treatment response. Further research is needed to confirm or refute this finding.engAsthma/COPDBronchospasmDiagnostic imagingEmergency medicineLung ultrasonographyPoint-of-care ultrasonographyjournal article10.1186/s13089-020-00184-5