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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 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 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...
Alterations in Blood Pressure01:30

Alterations in Blood Pressure

Alterations in blood pressure, such as hypertension (high blood pressure) and hypotension (low blood pressure), significantly affect human health. Understanding these conditions' classifications, causes, and symptoms is essential for effective management and treatment.
Hypertension (High blood pressure)
Hypertension occurs when blood pressure readings consistently exceed the normal range. It is diagnosed when systolic blood pressure (the top number, indicating pressure while the heart beats)...
Increased Intracranial Pressure l: Introduction01:14

Increased Intracranial Pressure l: Introduction

Intracranial hypertension is a sustained elevation of intracranial pressure (ICP) above 22 mm Hg. In supine adults, normal ICP is ~7–15 mm Hg.The rigid, nonexpandable cranium contains three components—brain tissue, blood, and cerebrospinal fluid (CSF)—that total ~1,700 mL in a typical adult: 1,400 mL brain (~80%), 150 mL blood (~10%), and 150 mL CSF (~10%). According to the Monro–Kellie doctrine, total intracranial volume is effectively fixed. When one component expands, CSF and venous blood...
Blood Pressure01:30

Blood Pressure

Blood pressure (BP) is the pressure or force of blood exerted on the artery's walls as it circulates through the body. It is essential for maintaining blood flow throughout the body.
The average BP in an adult is typically around 120/80 mmHg (millimeters of mercury). In this measurement, the numerator (120) indicates the systolic pressure, which is the pressure in the arteries during the contraction of the heart's ventricles as blood is expelled. The denominator (80) represents the diastolic...

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Related Experiment Video

Updated: May 9, 2026

Modeling Posthemorrhagic Hydrocephalus of Prematurity in Rats
04:12

Modeling Posthemorrhagic Hydrocephalus of Prematurity in Rats

Published on: March 28, 2025

Primary hypertension in childhood.

Barbara S Bucher1, Alessandra Ferrarini, Nico Weber

  • 1Pediatric Nephrology, University Children's Hospital, Inselspital and University of Bern, 3010, Bern, Switzerland.

Current Hypertension Reports
|July 31, 2013
PubMed
Summary

Childhood high blood pressure, linked to obesity, requires early intervention. Preventing adult cardiovascular disease starts with childhood screening and healthy lifestyle counseling.

Related Experiment Videos

Last Updated: May 9, 2026

Modeling Posthemorrhagic Hydrocephalus of Prematurity in Rats
04:12

Modeling Posthemorrhagic Hydrocephalus of Prematurity in Rats

Published on: March 28, 2025

Area of Science:

  • Pediatrics
  • Cardiology
  • Public Health

Background:

  • Elevated blood pressure in children and adolescents is a growing concern due to its link with the obesity epidemic.
  • Cardiovascular health established in childhood tracks into adulthood, highlighting the importance of early intervention.
  • Primary hypertension in childhood is defined as persistent blood pressure at or above the 95th percentile without a secondary cause.

Purpose of the Study:

  • To review the risk factors, pathways, and prevention strategies for primary hypertension in children and adolescents.
  • To emphasize the critical role of early detection and lifestyle modification in preventing adult cardiovascular disease.

Main Methods:

  • Literature review of studies on childhood hypertension, risk factors, and prevention.
  • Analysis of physiological pathways implicated in primary hypertension development.
  • Synthesis of current recommendations for screening and intervention.

Main Results:

  • Preventable risk factors include overweight, poor diet, high salt intake, sedentary behavior, inadequate sleep, and passive smoking.
  • Non-preventable factors include race, gender, genetics, low birth weight, prematurity, and socioeconomic status.
  • Key pathways involve obesity, insulin resistance, sympathetic nervous system activation, and disruptions in sodium and renin-angiotensin systems.

Conclusions:

  • Preventing adult cardiovascular disease necessitates early intervention in childhood through regular blood pressure screening.
  • Counseling on healthy lifestyle choices and mitigating preventable risk factors are crucial for managing childhood hypertension.
  • Addressing childhood elevated blood pressure is essential for long-term cardiovascular health outcomes.