Coarctation of the aorta: a secondary cause of hypertension

L M Prisant1, Kwabena Mawulawde, Deepak Kapoor

  • 1Department of Hypertension and Clinical Pharmacology, Medical College of Georgia, Augusta, GA 30912, USA. mprisant@mail.mcg.edu

Insights

Coarctation of the aorta is a narrowing of the aorta, often congenital. Early diagnosis and treatment are crucial to prevent serious complications like heart failure and aortic rupture.

Area of Science:

  • Cardiology
  • Pediatric Cardiology
  • Vascular Surgery

Background:

  • Coarctation of the aorta is a congenital narrowing of the aortic arch.
  • It is frequently associated with other congenital heart defects.
  • Untreated, the mean age of death is 34 years due to severe cardiovascular complications.

Observation:

  • Symptoms may be absent in adults, necessitating vigilant examination.
  • Key diagnostic clues include diminished femoral pulses, systolic murmurs, and posterior rib notching on chest X-ray.
  • Two-dimensional echocardiography with Doppler confirms the diagnosis.

Findings:

  • Surgical repair and percutaneous intervention are effective treatments for aortic coarctation.
  • Hypertension may persist even after successful repair.
  • Late complications include recoarctation, aortic aneurysm, and cerebrovascular accidents.

Implications:

  • Coarctation of the aorta requires lifelong monitoring for potential late complications.
  • Effective management strategies are essential to improve long-term patient outcomes.
  • Further research into preventing and managing persistent hypertension post-intervention is warranted.

Related Concept Videos

Hypertension and Regulation of Blood Pressure01:18

Hypertension and Regulation of Blood Pressure

Hypertension, the most common cardiovascular disease, is diagnosed through repeated measurements of elevated blood pressure. Its risks, including damage to the kidney, heart, and brain, are directly proportional to blood pressure levels. Starting from 115/75 mm Hg, the risk of cardiovascular disease doubles with each increment of 20/10 mm Hg. The diagnosis relies on blood pressure measurements, not on patient symptoms, as hypertension is often asymptomatic until end-organ damage is imminent or...
3.5K
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...
278
Hypertension I: Introduction01:28

Hypertension I: Introduction

Hypertension is a widespread, long-term medical condition where blood pressure in the arteries remains elevated. It is characterized by systolic blood pressure readings of 130 mm Hg or above or diastolic blood pressure (DBP) readings of 80 mm Hg or higher. Unmanaged hypertension poses significant health risks, making the distinction between primary (or essential) hypertension and secondary hypertension crucial, as their management and implications vary.Primary HypertensionPrimary hypertension,...
556
Hypertension II: Pathophysiology01:29

Hypertension II: Pathophysiology

Hypertension is a chronic condition in which the blood's force against artery walls is excessively high, posing risks such as heart disease. The condition's underlying mechanisms involve complex interactions among the cardiovascular, kidney, and autonomic nervous systems.Renin-Angiotensin-Aldosterone System (RAAS): This system significantly influences blood pressure regulation. When blood pressure decreases, the kidneys secrete renin. This enzyme transforms angiotensinogen, a plasma protein,...
605
Hypertension III: Clinical Manifestations and Diagnostic Studies01:30

Hypertension III: Clinical Manifestations and Diagnostic Studies

Hypertension is asymptomatic and also referred to as the "silent killer" until it progresses to a severe stage or causes target organ disease. Patients may experience symptoms stemming from the strain on blood vessels and tissues in various organs or the heart's increased workload.Physical exams might show no abnormalities other than high blood pressure. Signs of vascular damage, when present, correspond to the organs supplied by the affected vessels, leading to target organ damage. For...
361
Aneurysm II: Clinical Manifestations and Diagnostic Studies01:21

Aneurysm II: Clinical Manifestations and Diagnostic Studies

Thoracic, aortic arch and abdominal aneurysms are significant vascular conditions that can present with various clinical manifestations and lead to serious complications. Understanding these manifestations and the appropriate diagnostic studies is essential for effective management and treatment.Thoracic Aortic AneurysmsThoracic aortic aneurysms often remain asymptomatic until they reach a size that impinges on adjacent structures. They typically cause deep, diffuse chest pain that radiates to...
130