Elevated Lipoprotein(a)-Associated Coronary Artery Disease in a 45-Year-Old Male

Area of Science:

• Cardiology
• Genetics
• Vascular Biology

Background:

• Premature coronary artery disease (CAD) in younger adults is often linked to underdiagnosed risk factors.
• Elevated lipoprotein(a) (Lp(a)) is a genetically determined lipoprotein associated with atherogenic and prothrombotic properties, contributing significantly to premature CAD.

Observation:

• A 45-year-old male with untreated hypertension, prior ischemic stroke, and tobacco use presented with exertional angina.
• Laboratory results revealed elevated low-density lipoprotein cholesterol (LDL-C), borderline low high-density lipoprotein cholesterol (HDL-C), and markedly elevated Lp(a).
• Coronary angiography showed significant coronary artery disease, including a chronic total occlusion and severe stenosis.

Findings:

• Despite financial constraints preventing revascularization, the patient was managed with high-intensity statins, dual antiplatelet therapy, beta-blockers, ACE inhibitors, and lifestyle modifications.
• Over follow-up, the patient experienced marked symptomatic improvement.
• Left ventricular ejection fraction improved, and diastolic dysfunction showed partial reversal.

Implications:

• This case underscores the critical importance of screening for elevated Lp(a) in patients with premature CAD.
• Intensive medical therapy can be a viable strategy for stabilizing high-risk CAD patients when revascularization is not feasible.
• Understanding the role of Lp(a) can lead to earlier detection and better management of premature cardiovascular disease.