The prevalence of diastolic dysfunction in patients with hypertension referred for echocardiographic assessment of

Abdul Latif Mohamed1, Jun Yong, Jamil Masiyati

  • 1International Medical University, Clinical School, Seremban 70300, Negeri Sembilan, Malaysia.

Insights

Hypertension often leads to diastolic dysfunction, a reversible condition impacting heart health. Early detection in hypertensive patients is crucial for preventing cardiac complications and improving outcomes.

Area of Science:

  • Cardiology
  • Internal Medicine
  • Hypertension Research

Background:

  • Hypertension is a primary global cause of congestive cardiac failure.
  • Diastolic dysfunction in hypertension is an early, poor prognostic indicator and a reversible condition.
  • Optimal hypertension therapy is challenging, necessitating early detection of complications.

Purpose of the Study:

  • To assess the prevalence of diastolic dysfunction in hypertensive patients.
  • To identify contributing factors to diastolic dysfunction, including patient demographics, hypertension severity, and medication.
  • To analyze the relationship between hypertension duration, blood pressure, and diastolic dysfunction.

Main Methods:

  • Doppler echocardiography was used to analyze diastolic dysfunction via the E/A ratio.
  • Fifty hypertensive patients from Seremban General Hospital were selected for the study.
  • Data collected included age, gender, blood pressure, hypertension duration, cardiac history, and medications.

Main Results:

  • Diastolic dysfunction was identified in 44% of hypertensive patients (22 out of 50).
  • Factors associated with diastolic dysfunction included longer hypertension duration (>8 years), pre-existing ischemic heart disease/acute myocardial infarction, and stages II-III hypertension.
  • Prevalence varied by gender (39.1% males, 48.1% females) and was observed in patients on ACE-inhibitors (18%) and beta-blockers (28%).

Conclusions:

  • Hypertension duration, systolic and diastolic blood pressure, and patient age are significant indicators for predicting diastolic dysfunction.
  • Early identification and management of diastolic dysfunction in hypertensive individuals are vital.
  • Further research into the impact of specific antihypertensive drug classes on diastolic dysfunction is warranted.

Related Concept Videos

Heart Failure II: Pathophysiology01:29

Heart Failure II: Pathophysiology

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...
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...
Mitral Regurgitation I: Introduction01:20

Mitral Regurgitation I: Introduction

Mitral regurgitation is characterized by the backward circulation of blood from the left ventricle to the left atrium during systole, a phase of the cardiac cycle when the heart contracts and pumps blood out of the chambers. This abnormal flow occurs primarily due to the dysfunction of the mitral valve or its supporting structures, which include the mitral leaflets, chordae tendineae, annulus, and papillary muscles.Etiology and Mechanisms:Primary Mitral Regurgitation: This type arises from...
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...
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...
Assessing Blood pressure using a doppler ultrasound01:19

Assessing Blood pressure using a doppler ultrasound

To obtain accurate blood pressure measurements in clinical settings, especially when traditional methods are insufficient, healthcare professionals utilize the Doppler ultrasound technique. This method uses high-frequency sound waves to detect blood flow within the arteries, which is crucial for patients with conditions that complicate circulatory system assessment.
Pre-Procedural Guidelines for Doppler Ultrasound Blood Pressure Assessment:
Preparation of Equipment: