Assessment and Management of Abnormal Heart Sounds and Chest Pain Post-Cardiac Surgery

Initial Assessment

The American Heart Association recommends immediate evaluation with echocardiography for patients presenting with chest pain after cardiac surgery, as this may represent postpericardiotomy syndrome with tamponade or device erosion requiring urgent intervention 1, 2
A thorough cardiovascular assessment including inspection, palpation, percussion, and auscultation should be performed to detect abnormal heart sounds, with special attention to pericardial friction rubs, new murmurs, S3 gallop, and muffled heart sounds 3, 4, 1

The American College of Cardiology recommends obtaining a 12-lead ECG to assess for ischemic changes, arrhythmias, or pericarditis, and ordering cardiac biomarkers to evaluate for myocardial injury 7, 8
Echocardiography should be performed to assess pericardial effusion or tamponade, ventricular function, prosthetic valve function, and device position (if applicable) 1, 2, 4

Postpericardiotomy syndrome presents with fever, fatigue, vomiting, chest pain, or abdominal pain, and requires immediate echocardiography to rule out tamponade, with management including anti-inflammatory medications and pericardiocentesis if tamponade is present 1, 2, 4
Musculoskeletal pain is the most frequent cause of non-insertion site chest pain after CABG, and should be managed with appropriate analgesia and physical therapy 6
Graft failure presents with ischemic chest pain, with saphenous vein graft failure rates of 10-20% at 1 year and ~50% by 10 years, and internal mammary artery grafts having better longevity, with management including antiplatelet therapy, beta-blockers, and revascularization if indicated 6

The European Heart Society recommends evaluating patients before hospital discharge with clinical examination and echocardiography, and scheduling the first post-operative visit within 6 weeks of discharge if no rehabilitation program, or within 12 weeks if rehabilitation completed 4, 3
Annual clinical follow-up is recommended for patients with pulmonary arterial hypertension, atrial arrhythmias, right or left ventricular dysfunction, or coexisting valvular or other cardiac lesions, with evaluation for device complications performed 3 months to 1 year after device closure and periodically thereafter 1, 2