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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 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 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...

Hypertension V: Nursing Management

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: 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,...

Diabetic Nephropathy

Diabetic Nephropathy

Definition Diabetic nephropathy is a chronic kidney complication that results from prolonged hyperglycemia.Prevalence It is the most common cause of chronic kidney disease (CKD) and end-stage renal disease (ESRD) worldwide, affecting up to half of individuals with diabetes.Pathophysiology • Sustained hyperglycemia triggers multiple hemodynamic and metabolic changes in the kidney. • Early in the disease, increased renal blood flow and glomerular hyperfiltration occur due to afferent arteriolar...

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Updated: Jun 18, 2026

Improved Home Blood Pressure Control by CT-guided Ozone-mediated Renal Denervation for Patients with Resistant Hypertension

Improved Home Blood Pressure Control by CT-guided Ozone-mediated Renal Denervation for Patients with Resistant Hypertension

Published on: June 6, 2025

Prehypertension: is it relevant for nephrologists?

Rigas G Kalaitzidis¹, George L Bakris

¹Hypertensive Diseases Unit, Section of Endocrinology, Diabetes and Metabolism, Department of Medicine, The University of Chicago, Pritzker School of Medicine, Chicago, Illinois, USA.

Kidney International

|November 20, 2009

Summary

Prehypertension increases cardiovascular disease risk. Early intervention focusing on blood pressure and albuminuria monitoring is crucial for preventing chronic kidney disease progression, especially in diabetic patients.

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Last Updated: Jun 18, 2026

Improved Home Blood Pressure Control by CT-guided Ozone-mediated Renal Denervation for Patients with Resistant Hypertension

Improved Home Blood Pressure Control by CT-guided Ozone-mediated Renal Denervation for Patients with Resistant Hypertension

Published on: June 6, 2025

Area of Science:

Nephrology
Cardiology
Endocrinology

Background:

Prehypertension is linked to increased cardiovascular disease risk.
Patients with comorbidities face higher chronic kidney disease (CKD) risk with prehypertension.
Lifestyle modifications for prehypertension show limited long-term adherence and impact.

Purpose of the Study:

To evaluate the impact of renin-angiotensin system blockers on CKD outcomes in prehypertension.
To investigate the relationship between albuminuria, blood pressure, and CKD progression in diabetic patients.
To highlight the importance of early intervention and monitoring for CKD prevention.

Main Methods:

Review of data from natural history studies in type 1 diabetes patients.
Analysis of blood pressure and albuminuria changes in relation to CKD progression.
Assessment of pharmacological therapy benefits on CKD markers like microalbuminuria.

Main Results:

Renin-angiotensin system blockers show benefits on microalbuminuria in prehypertension with target organ damage.
Albuminuria increases can precede prehypertensive blood pressure increases in type 1 diabetes.
Systolic blood pressure above 125 mm Hg within the microalbuminuria range predicts nephropathy.

Conclusions:

Early blood pressure intervention and albuminuria monitoring are vital for CKD prevention.
Nephrologists must emphasize the importance of managing prehypertension and albuminuria to colleagues.
Further data on hard renal endpoints are needed for pharmacological interventions in prehypertension.