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Related Concept Videos

Heart Failure Drugs: Diuretics01:22

Heart Failure Drugs: Diuretics

Heart failure and kidney perfusion are interconnected in a complex way. Reduced renal perfusion and venous congestion are two significant factors that contribute to renal dysfunction in heart failure. The kidneys, primarily responsible for fluid balance in the body, are adversely affected due to compromised cardiac output and increased venous pressure. In response to reduced renal perfusion, the kidneys activate neurohumoral mechanisms to restore balance. However, these mechanisms can be...
Heart Failure II: Pathophysiology01:29

Heart Failure II: Pathophysiology

Systolic Heart Failure and Compensatory MechanismsSystolic heart failure (also termed HFrEF, Heart Failure with Reduced Ejection Fraction) is the most prevalent type of heart filure. It results in a decreased volume of blood being pumped from the ventricle. The aortic arch and carotid sinuses have baroreceptors that detect reduced blood pressure, triggering the sympathetic nervous system (SNS) to release epinephrine and norepinephrine. Initially, this response aims to boost heart rate and...

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Related Experiment Video

Updated: May 30, 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

Diastolic function predicts survival after renal revascularization.

Racheed J Ghanami1, Hamza Rana, Timothy E Craven

  • 1Department of Vascular and Endovascular Surgery, Wake Forest University Baptist Medical Center, Winston-Salem, NC 27157, USA.

Journal of Vascular Surgery
|August 9, 2011
PubMed
Summary
This summary is machine-generated.

Moderate to severe diastolic dysfunction is common in patients undergoing renal revascularization and independently predicts poor survival. Assessing diastolic function is crucial for managing patients with atherosclerotic renovascular disease.

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Area of Science:

  • Cardiology
  • Vascular Surgery
  • Nephrology

Background:

  • Atherosclerotic renovascular disease affects many patients, often leading to hypertension and impaired cardiac function.
  • Left ventricular diastolic dysfunction is increasingly recognized as a significant predictor of cardiovascular outcomes.
  • The impact of diastolic function on survival following renal revascularization remains incompletely understood.

Purpose of the Study:

  • To investigate the relationship between left ventricular diastolic function and patient survival after renal revascularization.
  • To determine if diastolic dysfunction is an independent predictor of mortality in this patient population.

Main Methods:

  • Seventy-six patients undergoing renal revascularization for atherosclerotic disease were assessed preoperatively using echocardiography.
  • Diastolic function was categorized as none/mild or moderate/severe based on transmitral flow (E/A) and mitral annular (E/e') velocities.
  • Survival data, including perioperative and follow-up mortality, were collected and analyzed using proportional hazards regression models.

Main Results:

  • Over 41 months of follow-up, 61.8% of patients exhibited moderate/severe diastolic dysfunction, which was not associated with systolic dysfunction.
  • Moderate/severe diastolic dysfunction was linked to increased left ventricular mass index (P=.0087) and poorer blood pressure response post-revascularization (P=.012).
  • In multivariable analysis, moderate/severe diastolic dysfunction (HR 5.8, P=.018) was the sole independent predictor of follow-up mortality.

Conclusions:

  • Diastolic dysfunction is prevalent in patients with renovascular disease and significantly impacts outcomes after renal revascularization.
  • Systolic function and ejection fraction were not associated with survival in this cohort.
  • Preoperative assessment of left ventricular diastolic function is essential for risk stratification and management of patients with atherosclerotic renovascular disease.