Extremely high high-density lipoprotein cholesterol with coronary artery disease: Case report

Area of Science:

• Cardiology
• Lipid Metabolism
• Clinical Case Study

Background:

• High-density lipoprotein (HDL) is traditionally considered cardioprotective.
• Extremely elevated HDL levels are rare and their clinical significance is not fully understood.
• Potential causes include chronic alcohol abuse and genetic factors like cholesteryl ester transfer protein (CETP) variations.

Observation:

• A case of an individual presenting with exceptionally high serum HDL levels is described.
• The underlying cause for the elevated HDL was investigated, considering both lifestyle and genetic factors.
• Despite the extremely high HDL, the patient's cardiovascular status was assessed.

Findings:

• The study reports an unusual case of extremely high HDL levels.
• It emphasizes that elevated HDL, regardless of the cause (e.g., alcohol abuse, CETP), may not confer protection against coronary heart disease.
• This challenges the conventional understanding of HDL's role in cardiovascular health.

Implications:

• This case suggests that the relationship between HDL and coronary heart disease is more complex than previously thought.
• Clinicians should consider that very high HDL levels might not always be beneficial and could be associated with underlying conditions.
• Further research is needed to understand the mechanisms behind non-protective high HDL and its clinical implications.