Related Experiment Video
Updated: Mar 6, 2026

Lumped-Parameter and Finite Element Modeling of Heart Failure with Preserved Ejection Fraction
Published on: February 13, 2021
[Chronic Heart Failure With Preserved Systolic Function and Reversible Dilatation of Cardiac Chambers]
O V Blagova1,2, S V Volkov1,2, A V Nedostup1,2
1Sechenov First Moscow State Medical University, Moscow, Russia.
A rare pelvic arteriovenous malformation caused dilated cardiomyopathy (DCMP) in a hypertensive patient. Embolization successfully treated the malformation, reversing heart failure symptoms and restoring normal heart rhythm.
Area of Science:
- Cardiology
- Interventional Radiology
Background:
- Dilated cardiomyopathy (DCMP) diagnosis necessitates excluding various causes, including rare conditions.
- A 51-year-old male with hypertension presented with new-onset atrial fibrillation and dyspnea, showing signs of DCMP on echocardiography.
Observation:
- Cardiac imaging revealed dilation of all chambers with preserved ejection fraction.
- Extensive workup excluded common and rare causes of cardiomyopathy.
- A massive pelvic arteriovenous malformation (AVM) was identified as the likely etiology.
Findings:
- The pelvic AVM, supplied by the internal iliac and mesenteric arteries, was deemed the cause of high-output heart failure.
- Multistage embolization of the AVM led to decreased cardiac chamber size, reduced valvular regurgitation, and alleviated pulmonary hypertension.
Implications:
- This case highlights AVMs as a treatable cause of DCMP and high-output heart failure.
- Successful interventional treatment of pelvic AVMs can reverse cardiac dysfunction and improve patient outcomes.
- Understanding the mechanisms of heart failure in AVMs is crucial for effective management.
More Related Videos
Related Concept Videos
Heart Failure II: Pathophysiology
Heart Failure IV: Classification and Diagnostic Evaluation
Cardiomyopathy II: Dilated Cardiomyopathy
Pathophysiology of Heart Failure
Imbalances in Cardiac Output
CHF can occur due to the failure of either side of the heart. Left-side failure leads to pulmonary congestion—the right side continues to send...
Mitral Regurgitation I: Introduction

