Related Experiment Video

Updated: Feb 22, 2026

Cutoff Value of Phase Angle by Bioelectrical Impedance Analysis at Admission as a Prognostic Factor in Patients with Acute Heart Failure
05:16

Cutoff Value of Phase Angle by Bioelectrical Impedance Analysis at Admission as a Prognostic Factor in Patients with Acute Heart Failure

Published on: June 10, 2025

675

Risk stratification of sudden cardiac death in hypertension

Larisa G Tereshchenko1, Elsayed Z Soliman2, Barry R Davis3

  • 1The Knight Cardiovascular Institute, Oregon Health & Science University, Portland, OR, United States.

Journal of Electrocardiology
|September 17, 2017
PubMed

Insights

Sudden cardiac death is a significant concern, with hypertension as a key risk factor. Antihypertensive treatments, despite expectations, do not currently reduce sudden cardiac death incidence.

Area of Science:

  • Cardiology
  • Preventive Medicine
  • Hypertension Research

Background:

  • Sudden cardiac death (SCD) affects up to 450,000 individuals annually in the US.
  • Systemic arterial hypertension is a primary risk factor for SCD, with a 30% higher lifetime risk at age 30.
  • Each 20/10 mmHg increase in blood pressure elevates SCD risk by 20%.

Purpose of the Study:

  • To review electrocardiogram (ECG) predictors of sudden cardiac death.
  • To emphasize the importance of risk stratification in managing hypertension for SCD prevention.

Main Methods:

  • Review of existing literature on ECG predictors for sudden cardiac death.
  • Analysis of meta-analysis data from 15 randomized controlled trials on antihypertensive treatment efficacy.
  • Synthesis of information on hypertension's role in sudden cardiac death.

Main Results:

  • Antihypertensive treatment, despite theoretical benefits, did not reduce the incidence of sudden cardiac death in a recent meta-analysis.
  • ECG findings are crucial for identifying individuals at risk.
  • Risk stratification is essential for effective hypertension management.

Conclusions:

  • Current antihypertensive therapies may not be sufficient for preventing sudden cardiac death.
  • Further research into ECG predictors and refined risk stratification strategies is necessary.
  • Targeted management approaches are needed to mitigate SCD risk in hypertensive patients.

Keywords:
Global electrical heterogeneityHypertensionSudden cardiac death

More Related Videos

Hydra, a Computer-Based Platform for Aiding Clinicians in Cardiovascular Analysis and Diagnosis07:51

Hydra, a Computer-Based Platform for Aiding Clinicians in Cardiovascular Analysis and Diagnosis

Published on: September 26, 2018

8.1K
Evaluation of the Cognitive Performance of Hypertensive Patients with Silent Cerebrovascular Lesions07:30

Evaluation of the Cognitive Performance of Hypertensive Patients with Silent Cerebrovascular Lesions

Published on: April 23, 2021

3.5K

Related Concept Videos

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,...
1.0K
Heart Failure IV: Classification and Diagnostic Evaluation01:30

Heart Failure IV: Classification and Diagnostic Evaluation

Heart failure can be classified in various ways, with the most common classifications based on physical activity limitations, disease progression, severity, and treatment strategies.The Functional Classification of Heart Failure divides patients into four categories based on physical activity limitation due to symptom burden.Class I: Patients in this class have cardiac disease but no physical activity limitations. Ordinary activities like walking, climbing stairs, or routine tasks do not cause...
459
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...
641
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...
550
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,...
1.2K
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...
4.6K