PT - JOURNAL ARTICLE AU - Yaopu Shi AU - Jihong Zhang AU - Shengda Liu AU - Wei Miao AU - Qinghai Zhang TI - A case of unilateral pulmonary oedema associated with severe acute mitral regurgitation AID - 10.7861/clinmed.2021-0770 DP - 2022 Mar 01 TA - Clinical Medicine PG - 160--162 VI - 22 IP - 2 4099 - http://www.rcpjournals.org/content/22/2/160.short 4100 - http://www.rcpjournals.org/content/22/2/160.full SO - Clin Med2022 Mar 01; 22 AB - A 44-year-old woman presented to the emergency department with sudden chest tightness and breathlessness, and a chest X-ray revealed unilateral pulmonary oedema (UPO). Colour Doppler echocardiography showed that the leaflet prolapsed with severe regurgitation, and the regurgitant jet tended to blow rightward within the left atrium. With the assistance of mechanical ventilation and venoarterial extracorporeal membrane oxygenation, the patient underwent mitral valve replacement. UPO is easily misdiagnosed, which leads to delays in treatment. Therefore, accurate diagnosis and immediate treatment are crucial.