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Hypertension I: Introduction

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 Studies

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...

Mitral Regurgitation IV: Nursing Management

Mitral Regurgitation IV: Nursing Management

Mitral regurgitation (MR) is a condition where the mitral valve does not close properly, leading to the backward flow of blood from the left ventricle into the left atrium during systole. This condition can arise from various causes, including rheumatic fever, infective endocarditis, or degenerative valve disease. Effective nursing management is crucial to optimizing patient outcomes and involves comprehensive assessment and targeted interventions.Comprehensive Patient AssessmentA detailed...

Mitral Regurgitation III: Medical Management

Mitral Regurgitation III: Medical Management

Mitral regurgitation (MR) is characterized by retrograde blood circulation from the left ventricle into the left atrium due to inadequate mitral valve closure. The severity of the condition, symptoms, and underlying cause determine treatment strategies.Monitoring and Pharmacological TreatmentPatients with mild to moderate MR typically do not need immediate intervention but regular monitoring to assess progression and guide treatment. Patients with mild MR should have an echocardiogram every 3-5...

Hypertension and Regulation of Blood Pressure

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 II: Pathophysiology

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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Updated: May 28, 2026

Mesenteric Artery Contraction and Relaxation Studies Using Automated Wire Myography

Mesenteric Artery Contraction and Relaxation Studies Using Automated Wire Myography

Published on: September 22, 2011

MR in hypertension.

¹Department of Radiology, Glasgow Royal Infirmary, Glasgow, Scotland, United Kingdom. giles.roditi@ggc.scot.nhs.uk

Journal of Magnetic Resonance Imaging : JMRI

|October 18, 2011

Summary

This summary is machine-generated.

Hypertension, a common cardiovascular and kidney disorder, is often overlooked in radiology. This review details its diagnosis, epidemiology, secondary causes detectable by MRI, and the cardiovascular and renal effects of hypertension, emphasizing renovascular disease.

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Assessing Murine Resistance Artery Function Using Pressure Myography

Assessing Murine Resistance Artery Function Using Pressure Myography

Published on: June 7, 2013

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Last Updated: May 28, 2026

Mesenteric Artery Contraction and Relaxation Studies Using Automated Wire Myography

Mesenteric Artery Contraction and Relaxation Studies Using Automated Wire Myography

Published on: September 22, 2011

Assessing Murine Resistance Artery Function Using Pressure Myography

Assessing Murine Resistance Artery Function Using Pressure Myography

Published on: June 7, 2013

Area of Science:

Radiology
Cardiovascular Medicine
Nephrology

Background:

Hypertension is a prevalent systemic disorder with significant cardiovascular and renal morbidity and mortality.
Radiologists often perceive hypertension as an "invisible" disease, lacking direct imaging findings.
Understanding hypertension's impact is crucial for patient management and preventing complications.

Purpose of the Study:

To review the diagnosis, epidemiology, and clinical importance of hypertension.
To describe secondary causes of hypertension diagnosable by Magnetic Resonance Imaging (MRI).
To highlight MRI-demonstrable effects of hypertension on the cardiovascular system and kidneys, focusing on renovascular disease.

Main Methods:

Review of existing literature on hypertension diagnosis and epidemiology.
Discussion of MRI techniques for identifying secondary causes of hypertension.
Analysis of MRI findings related to cardiovascular and renal sequelae of hypertension, particularly renovascular disease.

Main Results:

Hypertension diagnosis, epidemiology, and clinical significance are outlined.
Specific secondary causes of hypertension amenable to MRI diagnosis are presented.
MRI's capability in visualizing cardiovascular and renal changes, including renovascular disease, in hypertensive patients is demonstrated.

Conclusions:

Integrated MRI protocols can aid in evaluating hypertensive patients.
Further research is needed to optimize MRI's role in hypertension management.
Recognizing hypertension's imaging manifestations improves diagnostic accuracy and patient outcomes.