Related Experiment Video

Updated: Jul 6, 2026

Assessment of Vascular Function in Patients With Chronic Kidney Disease
08:50

Assessment of Vascular Function in Patients With Chronic Kidney Disease

Published on: June 16, 2014

[Arterial hypertension, chronic renal insufficiency and dialysis]

G London1, S Marchais, A Guérin

  • 1Centre Hospitalier F.H.MANHES, 8 Rue Roger-Clavier, 91712 Fleury-Merogis, France. glondon@club-internet.fr

Nephrologie & Therapeutique
|March 15, 2008
PubMed

Insights

Isolated systolic hypertension in chronic kidney disease (CKD) involves increased systolic pressure and pulse pressure due to arterial stiffening and calcification. This condition, prevalent in advanced CKD, poses significant cardiovascular risks.

Area of Science:

  • Nephrology
  • Cardiology
  • Vascular Biology

Context:

  • Hypertension is a common complication in chronic kidney disease (CKD), particularly in advanced stages (CKD stage 5).
  • Characterized by isolated systolic hypertension (ISH) with increased pulse pressure, a significant cardiovascular risk factor.
  • Underlying mechanisms involve accelerated arterial aging, leading to stiffening and calcification of central arteries.

Purpose:

  • To elucidate the pathophysiology of isolated systolic hypertension in chronic kidney disease.
  • To investigate the role of arterial aging, stiffness, and calcification in CKD-related hypertension.
  • To understand the impact of mineral metabolism disorders on arterial calcification and stiffness.

Summary:

  • CKD patients, especially at stage 5, exhibit ISH with elevated systolic and normal/low diastolic pressures, leading to increased pulse pressure.
  • Accelerated arterial aging, characterized by stiffening of the aorta and large central arteries, is a primary cause.
  • Medial calcification (media-calcinosis), influenced by mineral metabolism disorders like hyperphosphatemia, is a key factor in arterial stiffening.
  • Arterial stiffness results in a steep volume-pressure relationship, causing hemodynamic instability and susceptibility to both hypertension and hypotension.

Impact:

  • Highlights arterial stiffening and calcification as critical factors in CKD-related hypertension.
  • Emphasizes the link between mineral metabolism disorders and cardiovascular complications in CKD.
  • Provides insights into hemodynamic instability associated with arterial stiffness in CKD patients.
  • Underscores the importance of managing arterial health to mitigate cardiovascular risk in CKD.

Related Concept Videos

Chronic Kidney Disease III: Interprofessional Care01:28

Chronic Kidney Disease III: Interprofessional Care

Chronic kidney disease (CKD) requires collaborative and comprehensive management. CKD progresses through stages and can lead to end-stage kidney disease (ESKD) if untreated. Interprofessional collaboration and patient education are crucial, enabling patients to manage their health and improve their quality of life.Diagnostic approach for chronic kidney diseaseThe diagnosis of CKD primarily focuses on the glomerular filtration rate (GFR), which assesses kidney function by measuring how well...
Dialysis01:27

Dialysis

Renal failure occurs when the kidneys lose their ability to filter waste products from the blood effectively. It can be classified into two types: acute renal failure (ARF) and chronic renal failure (CRF).
Acute kidney injury develops suddenly and can be caused by pre-renal causes (e.g., hypovolemia, shock), intrinsic renal causes (e.g., acute tubular necrosis), or post-renal causes (e.g., urinary obstruction). In contrast, chronic renal failure progresses gradually over time and is often...
Chronic Kidney Disease I: Introduction01:25

Chronic Kidney Disease I: Introduction

Chronic Kidney Disease (CKD) arises when the kidneys progressively lose their ability to function, ultimately leading to end-stage renal disease. At this advanced stage, the kidneys can no longer filter waste or maintain essential body functions, requiring renal replacement therapy (RRT) through dialysis or a kidney transplant for survival.Early-stage chronic kidney disease and detection challengesIn CKD's early stages, symptoms often remain absent because healthy nephrons compensate for...
Antihypertensive Drugs: Direct Renin Inhibitors01:25

Antihypertensive Drugs: Direct Renin Inhibitors

The renin-angiotensin-aldosterone system (RAAS) is an intricate physiological pathway involving numerous enzymes and hormones, including renin, angiotensin-converting enzyme (ACE), angiotensin I and II, and aldosterone. Imbalances within this system increase the production of angiotensin II and aldosterone. Increased angiotensin II levels promote vasoconstriction and blood pressure elevation. Concurrently, higher aldosterone levels stimulate sodium and water reabsorption in the kidneys,...
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,...
Hemodialysis II: Procedure and Complications01:24

Hemodialysis II: Procedure and Complications

DialyzersA hemodialysis (HD) dialyzer is a plastic cartridge containing thousands of parallel hollow fibers, which serve as semipermeable membranes. These fibers are typically made from cellulose-based or other synthetic materials. During HD, blood is pumped into the top of the cartridge and distributed among these fibers. Simultaneously, dialysis fluid, known as dialysate, is introduced into the bottom of the cartridge, bathing the outside of the fibers. Across the semipermeable membrane,...