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Hypertension III: Clinical Manifestations and Diagnostic Studies01:30

Hypertension III: Clinical Manifestations and Diagnostic Studies

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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...
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Imaging Studies for Cardiovascular System III: X-Ray01:20

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The most common cardiovascular diagnostic test is an X-ray. It produces images of the heart, blood vessels, and adjacent structures.
Definition and Purpose
An X-ray, or radiograph, is a non-invasive method that uses ionizing radiation to take images of internal structures. It is mainly used in cardiac imaging to examine the heart, lungs, and major blood vessels, aiming to identify abnormalities in the heart's size, shape, and position, such as heart failure, congenital defects, and vascular...
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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,...
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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...
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Imaging Studies for Cardiovascular System I:Echocardiography01:17

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Cardiac imaging studies encompass a wide range of noninvasive and minimally invasive techniques designed to visualize the heart's structure and function in detail. One such technique is echocardiography, which uses high-frequency ultrasound waves to produce detailed images of the heart, known as echocardiograms.
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Systolic Heart Failure and Compensatory MechanismsSystolic heart failure (also termed HFrEF, Heart Failure with Reduced Ejection Fraction) is the most prevalent type of heart filure. It results in a decreased volume of blood being pumped from the ventricle. The aortic arch and carotid sinuses have baroreceptors that detect reduced blood pressure, triggering the sympathetic nervous system (SNS) to release epinephrine and norepinephrine. Initially, this response aims to boost heart rate and...
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Hypertensive Heart Disease-The Imaging Perspective.

Tevfik F Ismail1, Simon Frey2, Beat A Kaufmann2

  • 1King's College London & Cardiology Department, School of Biomedical Engineering and Imaging Sciences, Guy's and St Thomas' NHS Foundation Trust, London SE1 7EH, UK.

Journal of Clinical Medicine
|May 13, 2023
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Summary

Hypertensive heart disease (HHD) involves structural and functional changes in the heart due to high blood pressure. This review highlights multimodality imaging for diagnosing HHD and differentiating it from other conditions.

Keywords:
Fabry’s diseasePETcardiac amyloidosiscardiovascular magnetic resonancecomputed tomographyechocardiographyhypertensive heart diseasehypertrophic cardiomyopathymyocardial perfusion scintigraphy

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Area of Science:

  • Cardiology
  • Hypertension Research
  • Medical Imaging

Background:

  • Hypertensive heart disease (HHD) results from prolonged elevated systemic blood pressure affecting cardiac structures.
  • Chronic hypertension leads to left ventricular hypertrophy, interstitial fibrosis, diastolic dysfunction, and impaired atrial/ventricular mechanics.
  • These cardiac alterations can progress to heart failure with preserved (HFpEF) or reduced (HFrEF) ejection fraction.

Purpose of the Study:

  • To review the clinical evaluation of patients with hypertension and suspected HHD.
  • To emphasize the role and recent advancements in multimodality imaging for HHD diagnosis.
  • To discuss the use of imaging in the differential diagnosis of HHD.

Main Methods:

  • Review of clinical evaluation strategies for hypertension and HHD.
  • Analysis of recent advancements in multimodality cardiovascular imaging techniques.
  • Discussion of imaging findings in the context of HHD pathophysiology.

Main Results:

  • Multimodality imaging plays a crucial role in diagnosing HHD.
  • Recent imaging advances enhance the detection of subtle structural and functional cardiac changes.
  • Imaging aids in differentiating HHD from other causes of cardiac dysfunction.

Conclusions:

  • Accurate diagnosis of HHD relies on integrating clinical assessment with advanced imaging.
  • Multimodality imaging is essential for identifying cardiac remodeling and dysfunction caused by hypertension.
  • Imaging facilitates timely and accurate differential diagnosis, guiding appropriate patient management.