Unusual suspect-coronary subclavian steal syndrome caused severe myocardial ischemia

Area of Science:

• Cardiovascular Surgery
• Vascular Surgery
• Interventional Cardiology

Background:

• Coronary artery bypass graft (CABG) surgery is a common procedure for coronary heart disease.
• Coronary-subclavian steal syndrome (CSSS) is a rare complication following CABG.
• CSSS involves reversed blood flow in the left internal mammary artery (LIMA).

Observation:

• A 72-year-old male presented with severe anginal and neurological symptoms.
• These symptoms emerged three years post-CABG surgery.
• The patient's presentation suggests a potential complication related to the LIMA graft or surrounding vasculature.

Findings:

• The abstract describes a case of CSSS, a condition where blood flow in the LIMA reverses.
• Atherosclerotic disease in the subclavian artery is identified as the primary cause of CSSS.
• The patient's delayed onset of symptoms post-CABG is a key feature of this case.

Implications:

• This case underscores the importance of considering CSSS in patients with delayed symptoms after CABG.
• Early diagnosis and management of CSSS are crucial to prevent adverse cardiovascular and neurological events.
• Further research may elucidate risk factors and optimal surveillance strategies for CSSS post-CABG.