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Related Concept Videos

Venous Thrombosis I: Introduction01:30

Venous Thrombosis I: Introduction

Venous thrombosis, the most common disorder of the veins, involves the formation of a thrombus or blood clot associated with vein inflammation. It can be classified as either superficial vein thrombosis or deep vein thrombosis.Superficial Vein Thrombosis: This involves the formation of a thrombus in a superficial vein, usually the greater or lesser saphenous vein. Though less severe than deep vein thrombosis (DVT), SVT can lead to complications if untreated.Deep Vein Thrombosis (DVT): This...
Mitral Stenosis I: Introduction01:22

Mitral Stenosis I: Introduction

Mitral Valve Stenosis (MVS) is a heart condition where the mitral valve narrows, impeding blood circulation from the left atrium to the left ventricle. The etiology and pathophysiology of this condition are multifaceted, leading to a cascade of cardiovascular complications.Causes of Mitral Valve StenosisRheumatic Heart Disease: It is the main cause of mitral valve stenosis, particularly in developing nations. This condition arises from rheumatic fever, an inflammatory illness resulting from...
Venous Thrombosis III: Interprofessional Care01:29

Venous Thrombosis III: Interprofessional Care

Venous thrombosis requires effective prevention and treatment strategies to improve patient outcomes and reduce potential complications.Prevention StrategiesHealthcare providers must prioritize preventing venous thromboembolism (VTE) for all adult patients upon admission. Interventions depend on bleeding and thrombosis risk, medical history, current medications, diagnoses, planned procedures, and patient preferences. Patients on bed rest should change positions every two hours and, if not...
Pulmonary Embolism II: Diagnostic Studies and Interprofessional Care01:29

Pulmonary Embolism II: Diagnostic Studies and Interprofessional Care

Diagnosing Pulmonary EmbolismDiagnosing pulmonary embolism (PE) involves clinical assessment and advanced imaging tests. The preferred diagnostic tool is the spiral (helical) CT scan or CT angiography (CTA), which uses intravenous contrast media to visualize the pulmonary vasculature and identify emboli.A ventilation-perfusion (V/Q) scan is an alternative for patients unable to receive contrast media. This scan includes both perfusion and ventilation scanning. Perfusion scanning involves...
Mitral Valve Prolapse I: Introduction01:27

Mitral Valve Prolapse I: Introduction

IntroductionThe mitral valve, one of the heart's four valves, regulates blood flow. These valves have flaps that open and close to direct blood properly through the heart and body. During each heartbeat, the flaps open for blood to pass through and seal shut to prevent backflow. Specifically, the mitral valve opens to allow blood flow from the heart's upper left chamber to the lower left chamber. It then closes securely as the lower left chamber contracts to pump blood to the body, preventing...
Pulmonary Embolism I: Introduction01:29

Pulmonary Embolism I: Introduction

Pulmonary embolism (PE) occurs when a thrombus, fat or air embolus, amniotic fluid, or tumor tissue blocks one or more pulmonary arteries. These blockages originate in the venous system or the right side of the heart.EtiologyPE primarily arises from deep vein thrombosis (DVT) and other hypercoagulable states, such as inherited thrombophilias. Additional etiological factors include venous stasis, commonly seen in obesity, and endothelial injury from surgery and trauma. Less common causes include...

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Related Experiment Video

Updated: Jun 22, 2026

Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation
28:13

Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation

Published on: February 26, 2013

Obstructive left-sided prosthetic valve thrombosis.

Yaron Shapira1, Modrehay Vaturi, Alex Sagie

  • 1The Dan Sheingarten Echocardiography Unit and Valvular Clinic, Department of Cardiology, Rabin Medical Center, Beilinson Campus, Petah Tiqwa, Israel. yshapira@post.tau.ac.il

Acute Cardiac Care
|June 30, 2009
PubMed
Summary
This summary is machine-generated.

Prosthetic valve thrombosis requires prompt diagnosis using imaging like echocardiography. Small thrombi may benefit from thrombolysis, guided by guidelines and patient factors.

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Chronic Thromboembolic Pulmonary Hypertension and Assessment of Right Ventricular Function in the Piglet
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Published on: November 4, 2015

Related Experiment Videos

Last Updated: Jun 22, 2026

Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation
28:13

Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation

Published on: February 26, 2013

Chronic Thromboembolic Pulmonary Hypertension and Assessment of Right Ventricular Function in the Piglet
09:22

Chronic Thromboembolic Pulmonary Hypertension and Assessment of Right Ventricular Function in the Piglet

Published on: November 4, 2015

Area of Science:

  • Cardiology
  • Medical Imaging

Background:

  • Obstructive prosthetic valve thrombosis is a serious complication.
  • It presents with worsening functional class, embolic events, and poor anticoagulation.

Purpose of the Study:

  • To review diagnostic modalities for prosthetic valve thrombosis.
  • To discuss therapeutic strategies based on diagnosis and patient risk.

Main Methods:

  • Transthoracic echocardiography (TTE) for initial assessment.
  • Transesophageal echocardiography (TEE) for high-risk thrombi.
  • Fluoroscopy for leaflet motion (aortic position).
  • Cardiac CT for additional data.
  • Distinguishing thrombosis from pannus is challenging.

Main Results:

  • TTE is the initial imaging modality.
  • TEE is crucial for excluding high-risk thrombi.
  • Fluoroscopy excels in assessing aortic valve leaflet motion.
  • 3D TEE may enhance diagnostic accuracy.
  • Thrombus size is a key factor in complication risk.

Conclusions:

  • Prompt diagnosis of prosthetic valve thrombosis is essential.
  • Therapy selection involves surgery vs. thrombolysis, considering risks.
  • Small thrombi may warrant thrombolysis across functional classes, per guidelines.