PMC9149543_01
Image from the patient's TTE during cough maneuver demonstrating opacified RA and RV, and lack of bubbles in the LV, ruling out an intracardiac shunt. RA, right atrium; RV, right ventricle; LV, left ventricle.
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F1
Transthoracic echocardiogram (TTE) with saline contrast and bubble study revealed lack of bubbles in the left ventricle after cough and the presence of bubbles after 7 heartbeats, suggestive of a transpulmonary shunt (as shown in Fig. 1, 2).
Image from the patient's TTE after 7 beats during cough maneuver demonstrating the presence of bubbles in the LV, suggestive of an intrathoracic shunt.
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F2
Transthoracic echocardiogram (TTE) with saline contrast and bubble study revealed lack of bubbles in the left ventricle after cough and the presence of bubbles after 7 heartbeats, suggestive of a transpulmonary shunt (as shown in Fig. 1, 2).