Re-admission
The incidence of re-admission for pericardial effusion was 3.1% (n=12) at a median of 11 days(IQR: 7.5-99). All the patients expect four (NOACs=3, 27%; Warfarin=1, 9%), underwent surgical drainage. Four of those patients were discharged on NOACs (Apixaban=2, 25%, Rivaroxaban=2, 25%).
In the NOACs group the median effusion drained was 650mls (IQR: 525-775). In the Warfarin group, the median INR was 2.2 (IQR: 1.7-3.4). Also, in this case, a higher INR was associated with a bigger effusion (median:800mls, IQR: 750-1100), but this was not statistically significant (r =0.8, R2=0.65 p =.192, n=4).