Table 2

CMR abnormalities in long Covid at 6 and 12 months postinfection

6 months12 months
CMR abnormalities n=102No CMR abnormalities n=424P valueCMR abnormalities and hospitalised,
n=19		CMR abnormalities not hospitalised,
n=83		P valueOngoing CMR abnormalities n=41Resolved CMR abnormalities n=30P value
Elevated T146 (45%)0 (0%)<0.00113 (68%)33 (40%)0.0213 (32%)0 (0%)<0.001
Left ventricle
 High end diastolic volume4 (3.9%)0 (0%)0.0011 (5.3%)3 (3.6%)0.62 (4.9%)0 (0%)0.32
 High end systolic volume6 (5.9%)4 (0.9%)0.0051 (5.3%)5 (6.0%)13 (7.3%)0 (0%)0.15
 Low ejection fraction21 (21%)0 (0%)<0.0015 (26%)16 (19%)0.59 (22%)0 (0%)0.008
 High stroke volume1 (1.0%)3 (0.7%)0.580 (0%)1 (1.2%)10 (0%)0 (0%)1
 High ventricular muscle mass6 (5.9%)18 (4.2%)0.442 (11%)4 (4.8%)0.32 (4.9%)2 (6.7%)0.60
 High ventricular maximum wall thickness11 (11%)26 (6.1%)0.093 (17%)8 (9.6%)0.44 (9.8%)4 (13%)0.23
 Low global circumferential strain11 (11%)13 (3.1%)0.0022 (11%)9 (11%)16 (15%)1 (3.3%)0.17
 Low global longitudinal strain21 (21%)0 (0%)<0.0011 (5.6%)20 (25%)0.17 (17%)0 (0%)0.02
Right ventricle
 High end diastolic volume6 (5.9%)0 (0%)<0.0012 (11%)4 (4.8%)0.33 (7.3%)0 (0%)0.15
 High end systolic volume7 (6.9%)2 (0.5%)<0.0013 (16%)4 (4.8%)0.13 (7.3%)2 (6.7%)0.79
 Low ejection fraction21 (21%)0 (0%)<0.0014 (21%)17 (20%)112 (29%)0 (0%)<0.001
 High stroke volume4 (3.9%)0 (0%)0.0011 (5.3%)3 (3.6%)0.62 (4.9%)0 (0%)0.32

  • Prevalence of abnormal CMR findings at 6 and 12 months in individuals with Long Covid.

  • p ≤0.05 are in bold.

  • CMR, cardiac MR.