Contemporary Examples. 1  Biden is such a straight shooter that pundits say he needs a muzzle. 2  Suddenly, the darkness came alive with muzzle flashes and tracer rounds. 3  The result of the back-and-forth was guaranteed national publicity for the very ideas the politicians wanted to muzzle.
Early symptoms of fluid around the heart include feeling out of breath, even when lying down. Breathing often becomes easier when you sit up or lean forward. Other signs include feeling lightheaded or dizzy, chest pain that is sharp and stabbing, chest tightness and a dry, chronic cough.
A pericardial effusion is an abnormal amount of fluid between the heart and the pericardium, which is the sac surrounding the heart. Pericardial effusions are associated with many different medical conditions.n people with a pericardial effusion that's not due to pericarditis, there are often no symptoms. Large, serious pericardial effusions may cause symptoms including: 1  Shortness of breath. 2  Palpitations (sensation that the heart is pounding or beating fast). 3  Light-headedness or passing out. 4  Cool, clammy skin.