CT can detect the presence of a pericardial effusion; however, it is not accurate to estimate size. The 12-lead ECG may show low voltage, pericarditis (if present) or electrical alternans.

This ECG occurred in the setting of a large pericardial effusion causing cardiac tamponade. The pericardial effusion dampens the electrical signal on the ECG causing low voltage to be present (see ...

ECG and echocardiography was done at admission ... Prolonged QTc interval, pericardial effusion and diastolic dysfunction are associated with higher mortality.

In conclusion, QTc prolongation, diastolic dysfunction and pericardial effusion are associated with higher mortality as well as complicated clinical course of the disease and hence can be used to ...