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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,...
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...
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,...
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...
Hypertension IV: Drug Therapy and Lifestyle Modifications01:28

Hypertension IV: Drug Therapy and Lifestyle Modifications

Multiple classes of antihypertensive medications are employed in treating hypertension. The most commonly recommended first-line treatments include:Thiazide Diuretics, such as chlorthalidone, increase sodium and water excretion from the body, reducing blood volume and blood pressure.Angiotensin-converting enzyme inhibitors, like lisinopril, block the conversion of angiotensin I to II, a potent vasoconstrictor lowering blood pressure.Angiotensin II Receptor Blockers (ARBs) prevent angiotensin II...
Factors affecting Blood pressure01:28

Factors affecting Blood pressure

Several physiological and lifestyle factors influence blood pressure (BP). Understanding these factors is crucial as they are significant in patient education and blood pressure management.
Physiological Factors:

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Related Experiment Video

Updated: May 9, 2026

Hydra, a Computer-Based Platform for Aiding Clinicians in Cardiovascular Analysis and Diagnosis
07:51

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

Published on: September 26, 2018

Risk models to predict hypertension: a systematic review.

Justin B Echouffo-Tcheugui1, G David Batty, Mika Kivimäki

  • 1Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA.

Plos One
|July 18, 2013
PubMed
Summary

Hypertension risk prediction models show acceptable accuracy in identifying individuals at risk. However, their real-world impact on preventing hypertension and guiding treatment decisions remains uncertain.

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Area of Science:

  • Cardiovascular Health
  • Medical Informatics

Background:

  • Hypertension is a significant risk factor for cardiovascular disease and a condition itself.
  • Risk prediction models can identify individuals prone to developing hypertension, aiding targeted interventions.

Purpose of the Study:

  • To synthesize evidence on the performance of hypertension risk prediction models.
  • To evaluate the accuracy and validation of existing models.

Main Methods:

  • Systematic literature search of MEDLINE and EMBASE.
  • Inclusion of 11 studies on 15 hypertension risk prediction models.
  • Extraction of data on study design, predictors, discrimination, calibration, and validation.

Main Results:

  • Common predictors include age, sex, BMI, diabetes, and blood pressure.
  • Most models demonstrated acceptable to good discrimination (C-statistic > 0.70).
  • Two models (Framingham, Hopkins) showed good external validation (C-statistic 0.71-0.81).

Conclusions:

  • Existing hypertension risk prediction tools possess acceptable discriminatory ability.
  • The clinical impact of these tools on hypertension prevention and treatment is not yet established.