Clinical Spotlight Series: Hypertriglyceridemia & CV Health-3. Multifactorial sHTG and FCS: What You Need to Know

Video Transcription

Video Summary

The speaker discloses prior research and advisory roles with Ionis and Arrowhead, then reviews severe hypertriglyceridemia (TG >500, especially >1,000) where preventing pancreatitis becomes the priority. Patients with very high TG are grouped into: (1) genetically confirmed familial chylomicronemia syndrome (FCS), (2) “clinical/functional” chylomicronemia with negative genetic testing but persistent, refractory TG elevations, and (3) episodic cases driven by secondary factors (e.g., uncontrolled diabetes, alcohol) on top of milder genetic risk.<br /><br />They explain normal triglyceride clearance via lipoprotein lipase (LPL) and the five key proteins/genes involved (LPL, LMF1, GPIHBP1, APOC2, APOA5). FCS (autosomal recessive defects in these pathways) causes persistent chylomicronemia, very high TG with relatively low ApoB/LDL, poor response to fibrates and omega-3s, and early, recurrent pancreatitis plus signs like eruptive xanthomas and lipemia retinalis.<br /><br />Management centers on an extremely low-fat diet and emerging ApoC3-lowering therapies (ASO/siRNA) that improve remnant clearance. Multifactorial/secondary cases often improve when triggers are treated and may respond to standard therapies.

Meta Tag

Concept Severe Hypertriglyceridemia

Concept Very Severe Hypertriglyceridemia

Concept Familial Chylomicronemia Syndrome

Concept Lipoprotein Lipase

Concept Very-Low-Fat Diet

Keywords

severe hypertriglyceridemia

familial chylomicronemia syndrome

lipoprotein lipase

ApoC3-lowering therapies

pancreatitis prevention

Severe Hypertriglyceridemia

Very Severe Hypertriglyceridemia

Familial Chylomicronemia Syndrome

Lipoprotein Lipase

Very-Low-Fat Diet