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Related Concept Videos

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...
Hormonal Regulation01:33

Hormonal Regulation

The renin-aldosterone system is an endocrine system which guides the renal absorption of water and electrolytes, thus managing blood pressure and osmoregulation. Activation of the system begins in the kidneys with a small cluster of cells adjacent to the afferent and efferent blood vessels of the renal corpuscle. As the nephrons are filtering blood, juxtaglomerular cells monitor blood pressure. If they detect a decrease in pressure, they release the hormone renin into the bloodstream.
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,...
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)...
Hypertension V: Nursing Management01:23

Hypertension V: Nursing Management

The nursing management of hypertension involves accurately assessing symptoms, making a comprehensive nursing diagnosis, collaborating with patients to set goals, and implementing targeted interventions to mitigate the condition's impact and improve patient well-being.Comprehensive AssessmentThe initial step in nursing care for hypertension involves a thorough patient assessment. It includes evaluating symptoms such as headaches, dizziness, blurred vision, and previous hypertension episodes.
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,...

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Related Experiment Video

Updated: Jun 23, 2026

Disruption of the Mouse Blood-Brain Barrier by Small Extracellular Vesicles from Hypoxic Human Placentas
05:31

Disruption of the Mouse Blood-Brain Barrier by Small Extracellular Vesicles from Hypoxic Human Placentas

Published on: January 26, 2024

Pre-eclampsia, eclampsia, and hypertension.

Lelia Duley1

  • 1University of Leeds, Academic unit, Leeds, UK.

BMJ Clinical Evidence
|May 19, 2009
PubMed
Summary
This summary is machine-generated.

This systematic review evaluates interventions for pre-eclampsia, a pregnancy complication. It found evidence on various treatments including anticonvulsants, antihypertensives, and calcium supplementation to improve maternal and child outcomes.

Related Experiment Videos

Last Updated: Jun 23, 2026

Disruption of the Mouse Blood-Brain Barrier by Small Extracellular Vesicles from Hypoxic Human Placentas
05:31

Disruption of the Mouse Blood-Brain Barrier by Small Extracellular Vesicles from Hypoxic Human Placentas

Published on: January 26, 2024

Area of Science:

  • Obstetrics and Gynecology
  • Maternal-Fetal Medicine
  • Clinical Pharmacology

Background:

  • Pre-eclampsia affects 2-8% of pregnancies, increasing maternal and infant morbidity/mortality.
  • Risk factors include multiple pregnancies and conditions associated with microvascular disease.

Purpose of the Study:

  • To systematically review the effects of preventive interventions for women at risk of pre-eclampsia.
  • To assess interventions for mild-moderate hypertension and severe pre-eclampsia during pregnancy.
  • To determine the optimal anticonvulsant for eclampsia management.

Main Methods:

  • A systematic review of 53 studies including systematic reviews, RCTs, and observational studies.
  • Searches conducted across major databases (Medline, Embase, Cochrane Library) up to June 2007.
  • Inclusion of harms alerts from regulatory agencies (FDA, MHRA).

Main Results:

  • Evaluated the GRADE quality of evidence for various interventions.
  • Identified studies meeting inclusion criteria for effectiveness and safety analysis.

Conclusions:

  • Presents information on the effectiveness and safety of numerous interventions.
  • Interventions reviewed include anticonvulsants, antihypertensives, antioxidants, antiplatelet drugs, calcium, magnesium, and more.
  • Evidence synthesis informs clinical decision-making for pre-eclampsia management.