Valvular and supravalvular aortic stenosis in heterozygous familial hypercholesterolemia, a case report

Kiyoshi Ozumi1, Hiromi Tasaki, Kazuhiko Yamashita

  • 1Second Department of Internal Medicine, University of Occupational and Environmental Health, School of Medicine, Iseigaoka 1-1, Yahatanishiku, Kitakyushu, Fukuoka 807-8555, Japan.

Insights

Familial hypercholesterolemia (FH) can cause severe aortic stenosis, a rare complication. This case highlights aortic valve replacement as a treatment for FH patients with valvular and supravalvular aortic stenosis.

Area of Science:

  • Cardiology
  • Genetics
  • Vascular Biology

Background:

  • Familial hypercholesterolemia (FH) is an inherited disorder causing high LDL-cholesterol and premature atherosclerosis.
  • Heterozygous FH (HeFH) presents a significant risk for cardiovascular complications.
  • Aortic stenosis is a known, though less common, manifestation of severe hypercholesterolemia.

Observation:

  • A 64-year-old woman with HeFH presented with chest pain and dyspnea.
  • Coronary angiography showed no significant coronary artery stenosis.
  • Severe valvular and supravalvular aortic stenosis of the ascending aorta was identified.

Findings:

  • The patient underwent aortic valve replacement for severe aortic stenosis.
  • Coronary flow studies revealed functional ischemia and reduced coronary flow reserve.
  • This case illustrates a rare complication of HeFH involving aortic valve and supravalvular stenosis.

Implications:

  • Aortic valve replacement can be a necessary intervention for FH patients with severe aortic stenosis.
  • Early recognition and management of aortic complications in FH are crucial.
  • This case expands understanding of the vascular manifestations of familial hypercholesterolemia.

Related Concept Videos

Cardiomyopathy III: Hypertrophic Cardiomyopathy01:29

Cardiomyopathy III: Hypertrophic Cardiomyopathy

Hypertrophic cardiomyopathy, or HCM, is an autosomal dominant genetic disorder characterized by asymmetric left ventricular hypertrophy without ventricular dilation. It is more common in men and is typically diagnosed in young, athletic adults.EtiologyHCM is primarily genetic and is caused by mutations in genes encoding sarcomeric proteins. Researchers have identified over 1400 mutations across at least 11 different genes. Among these, the most frequently occurring mutations are found in the...
Atherosclerosis II: Clinical Manifestations and Diagnostic Tests01:27

Atherosclerosis II: Clinical Manifestations and Diagnostic Tests

Atherosclerosis is a progressive disorder that leads to the thickening and narrowing of arterial walls due to plaque buildup. This condition can cause various symptoms depending on the arteries affected:Coronary Artery Disease (CAD): This condition affects the coronary arteries and may lead to chest pain (angina), shortness of breath (dyspnea), heart attacks, and other heart disease symptoms.Cerebrovascular Disease: This affects blood flow to the brain, causing transient ischemic attacks (TIAs)...
Aortic Regurgitation II: Clinical Features and Diagnostic Tests01:22

Aortic Regurgitation II: Clinical Features and Diagnostic Tests

Aortic valve regurgitation (AR) occurs when the aortic valve fails to close properly, allowing blood to flow backward from the aorta into the left ventricle. This backflow can result in two distinct clinical presentations: acute and chronic AR, each characterized by its own set of symptoms and physical findings.Acute Aortic RegurgitationAcute AR presents with a sudden onset of severe symptoms. Patients typically experience profound dyspnea (shortness of breath), chest pain, and signs of left...
Mitral Stenosis I: Introduction01:22

Mitral Stenosis I: Introduction

Mitral Valve Stenosis (MVS) is a heart condition where the mitral valve narrows, impeding blood circulation from the left atrium to the left ventricle. The etiology and pathophysiology of this condition are multifaceted, leading to a cascade of cardiovascular complications.Causes of Mitral Valve StenosisRheumatic Heart Disease: It is the main cause of mitral valve stenosis, particularly in developing nations. This condition arises from rheumatic fever, an inflammatory illness resulting from...
Mitral Stenosis II: Clinical features and Diagnostic Tests01:23

Mitral Stenosis II: Clinical features and Diagnostic Tests

Mitral stenosis is a heart condition in which the mitral valve, which allows blood to flow from the left atrium to the left ventricle, becomes narrowed or stenotic. This narrowing hinders blood flow and leads to clinical symptoms requiring specific medical evaluations and management strategies. The following overview outlines the clinical symptoms, assessments, diagnostic findings, prevention methods, and treatments for mitral stenosis.Clinical ManifestationsDyspnea (shortness of breath): This...
Atherosclerosis III: Management01:26

Atherosclerosis III: Management

Management of atherosclerosis involves an integrated strategy encompassing pharmacological treatment, surgical interventions, lifestyle changes, and nutrition therapy to address the multifactorial nature of the disease.Pharmacological TherapyA cornerstone of atherosclerosis management is the use of pharmacological agents. Statins, such as atorvastatin, are pivotal in inhibiting HMG-CoA reductase, an enzyme that catalyzes an initial step in cholesterol synthesis in the liver. This reduction in...