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[Two forms of familial hypercholesterolemia: differences in cardiovascular risk factors, cardiac and extracardiac

A Vogt1, C Keller1, C Heigl2

  • 1Medizinische Klinik und Poliklinik IV, Klinikum der Universität München.

Deutsche Medizinische Wochenschrift (1946)
|August 16, 2014
PubMed

Insights

Genetic hypercholesterolemias (HC) lead to early heart disease. Familial hypercholesterolemia (FH) patients show higher risks of coronary heart disease (CHD) and carotid artery stenosis compared to familial defective apolipoprotein B (FDB) patients.

Area of Science:

  • Cardiovascular Medicine
  • Genetics
  • Atherosclerosis Research

Background:

  • Monogenetic hypercholesterolemias (HC) significantly elevate the risk of premature coronary heart disease (CHD).
  • Understanding the interplay between genetic defects and cardiovascular risk factors is crucial for managing atherosclerotic complications.

Purpose of the Study:

  • To evaluate how specific genetic defects and cardiovascular risk factors influence the development of atherosclerotic complications.
  • To compare the manifestation of atherosclerosis in two distinct forms of genetic HC: familial hypercholesterolemia (FH) and familial defective apolipoprotein B (FDB).

Main Methods:

  • Retrospective analysis of patient data with genetically defined HC.
  • Inclusion of 54 patients with LDL-receptor defective FH and 54 patients with FDB.
  • Assessment of cardiac and extracardiac atherosclerosis.

Main Results:

  • FH patients exhibited higher total and LDL-cholesterol levels compared to FDB patients, particularly in men.
  • Coronary heart disease (CHD) was diagnosed in 41.8% of FH patients (mean age 41) versus 5.6% of FDB patients (mean age 52).
  • Internal carotid artery stenosis (>50%) was found in 15% of FH patients and 4% of FDB patients. Peripheral arterial disease was less common in both groups.

Conclusions:

  • Genetic hypercholesterolemias (HC) are associated with early-onset cardiovascular disease.
  • Familial hypercholesterolemia (FH) appears to confer a higher risk of atherosclerotic complications than familial defective apolipoprotein B (FDB).
  • Emphasizes the critical need for early diagnosis and lifelong management to delay disease manifestation.
Abstract

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