A pressure measurement can be described as either static or dynamic. The pressure in cases with no motion is static pressure. Examples of static pressure include the pressure of the air inside a balloon or water inside a basin. Often, the motion of a fluid changes the force applied to its surroundings. For example, say the pressure of water in a hose with the nozzle closed is 40 pounds per square inch (force per unit area).
If the valves are damaged there is a growing risk of heart failure. Arrhythmia is another complication, because the heart's rhythms may be affected by endocarditis. As endocarditis is an infection, the infection itself can spread within the heart and to other parts of the body, such as the kidneys, lungs and the brain.
Signs and symptoms. An acute exacerbation of COPD is associated with increased frequency and severity of coughing. It is often accompanied by worsened chest congestion and discomfort. Shortness of breath and wheezing are present in many cases.