If a patient presents with a large amount of pericardial effusion, surgical treatment is primarily chosen, yet the specific approach should be decided based on the patient's current condition. If the patient's symptoms of heart failure are severe, it is first necessary to actively correct the heart failure before addressing the large pericardial effusion, since a significant pericardial effusion can lead to cardiac tamponade, a very dangerous condition that requires immediate pericardiocentesis to alleviate the heart failure. Currently, symptomatic treatment is the main approach. For severe cases of extensive pericardial effusion, it is best for the patient to be hospitalized to alleviate their condition.