[High output heart failure due to an iatrogenic arteriovenous fistula after cardiac catheterization]

Augusto Ministro1, Tiago Costa, Diogo Cunha e Sá

  • 1Clínica Universitária de Cirurgia Vascular, Hospital de Santa Maria, Centro Hospitalar Lisboa Norte, Lisboa.

Insights

An arteriovenous fistula (FAV) can rarely cause heart failure after cardiac procedures. Surgical repair of this groin fistula resolved the patient's heart failure, highlighting the importance of clinical examination for diagnosis.

Area of Science:

  • Cardiology
  • Vascular Surgery
  • Interventional Cardiology

Background:

  • Arteriovenous fistulas (FAVs) are uncommon complications following cardiac catheterization.
  • While most FAVs are asymptomatic, they can occasionally lead to significant morbidity.

Observation:

  • A 70-year-old woman presented with high-output heart failure.
  • The patient had a history of cardiac catheterization, and a subsequent examination revealed an arteriovenous fistula in the groin.

Findings:

  • The arteriovenous fistula was successfully treated with surgical repair.
  • Following the intervention, the patient's high-output heart failure symptoms resolved completely.

Implications:

  • This case underscores the potential for iatrogenic arteriovenous fistulas to cause severe cardiovascular complications.
  • Early clinical recognition and diagnosis of iatrogenic FAVs are crucial for timely intervention and favorable patient outcomes.
  • Surgical correction of arteriovenous fistulas typically leads to the restoration of normal cardiac function.

Related Concept Videos

Cardiac Catheterization I: Pre-Procedure Overview01:28

Cardiac Catheterization I: Pre-Procedure Overview

Cardiac catheterization is an invasive diagnostic technique used to identify and evaluate structural and functional diseases of the heart and major blood vessels. This technique diagnoses congenital heart disease, coronary artery disease, valvular heart disease, and coronary spasms and assesses ventricular function. It helps guide treatment decisions, including the need for revascularization procedures like percutaneous coronary intervention (PCI) or coronary artery bypass grafting (CABG) and...
Cardiac Catheterization II: Right Heart Catheterization01:21

Cardiac Catheterization II: Right Heart Catheterization

Right Heart Catheterization: An OverviewRight heart catheterization is an invasive diagnostic procedure that measures right-sided cardiac and pulmonary artery pressures, calculates cardiac output, and identifies intracardiac shunts. It provides detailed hemodynamic data essential for diagnosing and managing various cardiovascular conditions, such as pulmonary hypertension.Access SitesCommon access sites for right heart catheterization include the internal jugular vein in the neck region, the...
Hemodialysis I: Introduction01:25

Hemodialysis I: Introduction

Hemodialysis (HD) is a medical treatment that artificially removes waste products, excess fluids, and toxins from the blood when the kidneys are no longer able to perform these functions effectively. In this process, blood is filtered through a semipermeable membrane, allowing for the selective removal of waste while preserving necessary components like blood cells and proteins. Hemodialysis is typically performed in patients with end-stage renal disease (ESRD) or severe kidney...
Pathophysiology of Heart Failure01:17

Pathophysiology of Heart Failure

Heart failure (HF) is a progressive syndrome involving ventricles that leads to inadequate cardiac output. It can be classified based on location and output or ejection fraction. Ejection fraction (EF) is an essential measurement in the diagnosis and surveillance of HF. Reduced EF corresponds to systolic heart failure (HFrEF). However, HF with preserved ejection fraction (HFpEF) is becoming increasingly prevalent. Also known as diastolic HF, this form of HF is related to aging. The...
Imbalances in Cardiac Output01:26

Imbalances in Cardiac Output

The heart's primary function is to pump blood throughout the body, maintaining a balance between blood sent out (cardiac output) and blood returning (venous return). If this balance is disrupted, it can result in congestive heart failure (CHF), a severe condition where the heart becomes an inefficient pump, leading to inadequate blood circulation.
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 blood...
Heart Failure I: Introduction01:27

Heart Failure I: Introduction

Heart failure refers to a clinical syndrome caused by structural or functional cardiac disorders that prevent the heart from pumping an adequate amount of blood to meet the body's metabolic needs. This condition often arises from myocardial infarction or ischemia, leading to decreased cardiac output, reduced tissue perfusion, impaired gas exchange, fluid volume imbalance, and decreased functional ability.Heart failure can result from disruptions in the mechanisms that regulate cardiac output...