RT Journal Article SR Electronic T1 Seronegative immune-mediated necrotising myopathy complicated by fulminant myocarditis resulting in cardiogenic shock and cardiac arrest JF BMJ Case Reports JO BMJ Case Reports FD BMJ Publishing Group Ltd SP e248535 DO 10.1136/bcr-2021-248535 VO 15 IS 4 A1 Tsang, Darren A1 Malladi, Chaitanya Lakshmidhar A1 Patel, Komal A1 Bajaj, Puneet YR 2022 UL http://casereports.bmj.com/content/15/4/e248535.abstract AB A woman in her late 30s recently diagnosed with viral myopericarditis presented with 1 month of worsening fatigue, diffuse myalgias and chest pain radiating to her back. While undergoing work-up for chest wall myositis, she rapidly decompensated, developing heart failure and acute hypoxaemic respiratory failure. Her clinical course was complicated by cardiac arrest and severe cardiogenic shock requiring intra-aortic balloon pump support.