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Related Concept Videos

Hypertension I: Introduction01:28

Hypertension I: Introduction

893
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,...
893
Hypertension II: Pathophysiology01:29

Hypertension II: Pathophysiology

957
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,...
957
Hypertension V: Nursing Management01:23

Hypertension V: Nursing Management

442
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.
442
Hypertension and Regulation of Blood Pressure01:18

Hypertension and Regulation of Blood Pressure

4.3K
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...
4.3K
Pulmonary Hypertension: Classification and Pathogenesis01:30

Pulmonary Hypertension: Classification and Pathogenesis

656
Pulmonary hypertension (PH) is a severe health condition in which the mean pulmonary arterial pressure increases to 25 mmHg or more, even when the body is at rest. This high pressure in the blood vessels that transport blood from the heart to the lungs can cause various symptoms, including shortness of breath, can lead to right heart failure, and significantly affect the overall quality of life.
There are various classifications for PH, each relating to different underlying causes and also...
656
Hypertension III: Clinical Manifestations and Diagnostic Studies01:30

Hypertension III: Clinical Manifestations and Diagnostic Studies

571
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...
571

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Related Experiment Video

Updated: Feb 4, 2026

Evaluation of Right Ventricular Function in Experimental Models of Pulmonary Arterial Hypertension
10:03

Evaluation of Right Ventricular Function in Experimental Models of Pulmonary Arterial Hypertension

Published on: June 27, 2025

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Chronotherapy for Hypertension.

N P Bowles1, S S Thosar2, M X Herzig2

  • 1Oregon Institute of Occupational Health Sciences, Oregon Health and Sciences University, 3181 S.W. Sam Jackson Park Rd. L606, Portland, OR, 97239, USA. bowlesn@ohsu.edu.

Current Hypertension Reports
|September 30, 2018
PubMed
Summary
This summary is machine-generated.

Shifting antihypertensive medication timing to bedtime may improve 24-hour blood pressure control. This chronotherapy approach shows promise for managing hypertension, even in patients with comorbidities.

Keywords:
Blood pressureChronotherapyCircadian rhythmsHypertensionNon-dippingSleep

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Area of Science:

  • Cardiovascular Medicine
  • Chronobiology
  • Pharmacology

Background:

  • Circadian rhythmicity is fundamental to cellular and organ system function.
  • Blood pressure exhibits a diurnal pattern with a morning surge, linked to cardiovascular events.
  • Nocturnal dipping of blood pressure is crucial for cardiovascular health.

Purpose of the Study:

  • To review recent research (2013-2017) on chronotherapy for hypertension.
  • To evaluate the impact of shifting antihypertensive dosing to bedtime.
  • To assess chronotherapy's effectiveness in comorbid populations.

Main Methods:

  • Systematic review of studies on nighttime administration of antihypertensives.
  • Analysis of research in patients with obstructive sleep apnea, chronic kidney disease, and diabetes.
  • Summary of findings regarding 24-hour blood pressure profiles.

Main Results:

  • Nighttime antihypertensive administration generally improved 24-hour blood pressure control.
  • Benefits were observed across various comorbid conditions.
  • Inconsistencies across studies highlight the need for more robust trials.

Conclusions:

  • Bedtime dosing of antihypertensives can optimize blood pressure management.
  • Further randomized controlled trials are needed to confirm efficacy and establish guidelines.
  • Investigating the mechanisms of chronotherapy can inform future drug design.