Chronic total left main coronary artery occlusion.

Area of Science:

• Cardiology
• Cardiovascular Surgery

Background:

• A 65-year-old male smoker presented with exertional dyspnea.
• Symptoms included jugular venous distension and basal crackles, responsive to diuretics and nitrates.

Observation:

• Echocardiogram revealed global left ventricular hypokinesis and severe mitral regurgitation.
• Diagnostic angiography showed a completely occluded left main coronary artery.

Findings:

• The left coronary system was supplied via collateral circulation from the right coronary artery.
• The patient required urgent combined surgical intervention.

Implications:

• This case highlights the importance of comprehensive pre-operative assessment in complex cardiac cases.
• Successful management necessitates a multi-disciplinary approach involving cardiology and cardiac surgery for optimal patient outcomes.