Prophylaxis for Postpericardiotomy Syndrome
A 53-year-old man underwent sternotomy and subsequent replacement of the ascending aorta with aortic valve repair for ascending aortic aneurysm. He developed atrial fibrillation postoperatively and was started on amiodarone. A follow-up echocardiogram performed ten days later showed a small circumferential pericardial effusion with no echocardiographic evidence of tamponade (Figures 1A and 1B). He was asymptomatic with no fever, chest discomfort, shortness of breath or dizziness. Physical examination revealed normal vital signs (temperature 37.1°C, blood pressure 111/63 mmHg, heart rate 67 beats per minute, oxygen saturation of 97% on room air by pulse oximetry), normal jugular venous pressure, normal heart sounds, absence of pericardial friction rub, Kussmaul sign or lower extremity edema and a normal lung examination. Electrocardiogram and chest x-rays are shown (Figures 2 and 3). Erythrocyte sedimentation rate (ESR) was 97 mm/hour (reference range for normal, 0-15 mm/hour) and the C-reactive protein (CRP) was 4.5 mg/dL (reference range for normal, < 0.9 mg/dL).
Which of the following is true?