A pericardial effusion occurs when a significant amount ... Pulsus paradoxus also occurs in severe asthma or COPD exacerbations. Many pericardial effusions do not require any therapy.

Pulsus paradoxus also occurs in severe asthma or COPD exacerbations ... This hemodynamic effect of a large pericardial effusion causing cardiac tamponade is referred to as “pulsus paradoxus.” ...