Skip to content
My WebMD Sign In, Sign Up

Lung Disease & Respiratory Health Center

Font Size

Paradoxical Embolism - Topic Overview

A paradoxical embolism is a blood clot that does not travel with normal blood flow. Normally, blood flows from the right side of the heart through the pulmonary arteries and lungs before it returns to the left side of the heart.

This type of embolism often causes a stroke because the clot moves directly from the right side of the heart to the left through a hole (defect) in the septum, which separates the upper right and left heart chambers. This hole is called a patent foramen ovale. The clot is pumped out of the heart and toward the brain, where it can cause a stroke.

Recommended Related to Lung Disease/Respiratory Problems

Understanding Pneumonia -- the Basics

Pneumonia is an inflammation of the lungs. Usually the inflammation is caused by an infection, but it can also be caused by breathing certain chemical fumes. It's a more common problem than most people think. Usually pneumonia is a mild disease, but some forms are very dangerous. In all cases, you'll need to seek care from your health care provider. Pneumonia can affect just one lobe of the right or left lung, a whole lung, or both lungs. Many different kinds of germs infect the lungs and cause...

Read the Understanding Pneumonia -- the Basics article > >

1

WebMD Medical Reference from Healthwise

Last Updated: January 10, 2013
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
Next Article:

Today on WebMD

Living With Copd
VIDEO
Lung Disease Health Check
HEALTH CHECK
 
Cigarette butts in ashtray
Article
Household Hazards For People With Copd
Article
 

Bronchitis Overview
SLIDESHOW
Copd Myth Fact Quiz
QUIZ
 
Living With Copd
VIDEO
Energy Boosting Foods
SLIDESHOW
 

cigarette butts snuffed out in ashtray
SLIDESHOW
Healthy Home Health Check
TOOL
 
Senior woman stretching
Article
Diagnosing Copd
VIDEO
 

WebMD Special Sections