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.
Fluid around the heart can cause enlargement of the veins in the neck, low blood pressure and edema -- swelling and fluid accumulation -- in other areas of the body such as the ankles. In later stages, the pericardium may place so much pressure on the chest that the chambers of the heart collapse.