Pericardial effusion primarily manifests as palpitations, chest tightness, and difficulty breathing. Sometimes, pericardial effusion can exacerbate heart failure. Once heart failure is alleviated, these symptoms can also subside.

Currently, it appears that pericardial effusion mainly presents as palpitations, chest tightness, and difficulty breathing, which are related to diet and fatigue, especially after exercise. This increase in myocardial oxygen consumption can lead to heart failure, resulting in difficulty breathing, particularly exertional dyspnea. At this point, it is necessary to provide low-flow oxygen inhalation and improve the patient's cardiopulmonary function, which is also helpful.

It is still necessary to actively treat pericardial effusion. The treatment mainly involves diagnostic aspiration of the fluid. If the pericardial effusion is caused by inflammation, it can be treated with antibiotics.