Highlights
- •Familial hypercholesterolemia (FH) is a major risk factor for premature and subsequent cardiovascular disease.
- •Data on long-term major adverse cardiovascular events in patients with FH after coronary stenting are scarce.
- •5.0% were classified with probable/definite FH.
- •Mean follow-up was 6.0 ± 2.4 years.
- •Probable/definite FH was associated with a 1.9-fold increased risk for MACE.
Background
Patients with familial hypercholesterolemia (FH) are at increased risk for premature
and subsequent cardiovascular disease. Data on long-term major adverse cardiovascular
events (MACE) in patients with FH after percutaneous coronary intervention (PCI) in
the era of high-intensity statins are scarce.
Objective
We assessed the prognostic impact of clinically diagnosed FH on long-term MACE, a
composite of all-cause death, myocardial infarction, and ischemic stroke in patients
admitted for stable coronary artery disease (SCAD) or acute coronary syndromes (ACSs)
undergoing PCI.
Methods
FH was diagnosed according to the Dutch Lipid Clinic Network diagnosis criteria: “Unlikely
FH” diagnosis was defined as 0 to 2 points, “possible FH” as 3 to 5 points, and “probable/definite
FH” diagnosis as 6 or higher.
Results
From a total of 1550 eligible patients (47.4% were admitted for SCAD and 52.6% for
ACS), 77 (5.0%) were classified as probable/definite FH, 332 (21.4%) as possible FH,
and 1141 (73.6%) as unlikely FH. Mean follow-up was 6.0 ± 2.4 years. After adjustment
for possible confounders, patients classified with probable or definite FH (hazard
ratio [HR] 1.922 [95% confidence interval (CI) 1.220–2.999]; P = .004), but not patients with possible FH (HR 1.105 [95% CI 0.843–1.447]; P = .470) faced a significant, approximately 2-fold increased risk of MACE compared
with patients with unlikely FH.
Conclusion
After adjustment for confounders, patients with probable or definite FH faced an approximate
2-fold increased risk for long-term MACE compared with patients without FH despite
the widespread use of high-intensity statins. The new option of proprotein convertase
subtilisin/kexin type 9 gene inhibitors in addition to other current optimal lipid-lowering
strategies might help to further improve clinical outcome in patients with probable/definite
FH.
Keywords
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Article Info
Publication History
Published online: September 21, 2018
Accepted:
September 18,
2018
Received:
April 5,
2018
Footnotes
Conflicts of Interest: K.H. received lecture fees from AMGEN and SANOFI AVENTIS. The rest of the authors declare no conflicts of interest.
Identification
Copyright
© 2018 National Lipid Association. All rights reserved.

