Table 3 Comparison of echocardiographic parameters between cases with tamponade (group 1) and cases without (group 2)

Echocardiographic signs of tamponade n (%)

Respiratory variation of mitral inflow velocity

13 (65)

3 (19)

 < 0.001

RV diastolic collapse

11 (55)

7 (44)

0.3

RA systolic collapse

8 (40)

7 (44)

0.6

LV E/E′

10.6 ± 1

6.3 ± 0.8

 < 0.0001

RV E/E′

9.5 ± 1

6.3 ± 0.8

 < 0.0001

Effusion dimensions

19 ± 2

14 ± 3.4

 < 0.0001