Chang Gung Study: Lipoprotein(a) Poses Higher Cardiovascular Risk than LDL for Asians

Cardiovascular disease remains a leading cause of death in Taiwan. A long-term study conducted by Linkou Chang Gung Memorial Hospital, tracking over 50,000 local patients, found that Lipoprotein(a) [Lp(a)] is more likely to cause thrombosis and stroke than standard "bad cholesterol" (LDL). The research, published in the European Journal of Preventive Cardiology, indicates that for Asians, an Lp(a) level exceeding 30 mg/dL increases the risk of major cardiovascular events by 27%.

Dr. Chen Tung-yi explained that Lp(a) possesses a unique structure with an added apolipoprotein(a) chain, making it significantly more inflammatory and pro-thrombotic than LDL. While Western clinical standards typically use a threshold of 50 mg/dL or higher, this study emphasizes that Asian populations experience increased risks at much lower concentrations. This finding suggests that current diagnostic thresholds should be redefined for regional populations.

Crucially, standard cholesterol-lowering medications targeting LDL are often ineffective at reducing Lp(a) levels. Patients with well-controlled LDL may still face "residual risk" if their Lp(a) is elevated. Although Lp(a) is largely genetic and resistant to significant changes through diet or exercise, maintaining a healthy lifestyle and controlling blood pressure remains essential for overall risk mitigation. Dr. Chen Chun-chi recommends that individuals with a family history of early-onset heart disease or recurrent vascular events undergo testing at least once in their lifetime.