What is a common clinical feature of pericardial effusion?

A common clinical feature of pericardial effusion is chest pain. This occurs due to the accumulation of fluid in the pericardial cavity, which can put pressure on the heart and surrounding structures, leading to pain. The pain may vary in intensity and can be sharp or dull, often worsened by certain positions or deep breathing.

While hypotension might occur if the effusion leads to significant cardiac tamponade, it's not always a presenting symptom. Bradycardia and palpitations can be associated with various cardiac conditions, but they are not hallmark features of pericardial effusion. In contrast, chest pain is a more direct symptom that patients typically report, making it a key clinical feature in diagnosing pericardial effusion.