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Definity® Echocardiogram Contrast Agent Lawsuit


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Definity (Perflutren Lipid Microsphere), an ultrasound micro-bubble contrast agent used in echocardiography has recently been linked to deaths and serious, life-threatening cardiopulmonary reactions.

If you or a loved one have experienced an adverse event or serious side effect after having an echocardiogram where the Definity contrast agent was used, you should contact us immediately. You may be entitled to compensation by filing a Definity lawsuit and we can help.

What’s the problem?

The U.S. Food & Drug Administration (FDA) has asked the manufacturers of ultrasound micro-bubble contrast agents Definity to add a “Boxed Warning” to their products because of recent reports linking them to deaths and serious, life-threatening cardiopulmonary reactions.

Four of the 11 reported deaths were caused by cardiac arrest occurring either during infusion or within 30 minutes following the administration of the contrast agent; most of the serious but non-fatal reactions also occurred in this time frame.

The FDA requested Boxed Warning would emphasize the risk for serious, life-threatening side effects including heart attacks and other cardiopulmonary reactions in patients with unstable angina, acute myocardial infarction, respiratory failure, or recent worsening congestive heart failure.

Link to FDA Warning: Micro-bubble Contrast Agents (marketed as Definity (Perflutren Lipid Microsphere) Injectable Suspension and Optison (Perflutren Protein-Type A Microspheres for Injection) – Healthcare Professional Sheet text version

FDA Video: Adverse Events with Ultrasound Micro-bubble Contrast Agents

Below is an excellent video published by the U.S. Food & Drug Administration (FDA), which warns patients of serious cardiopulmonary reactions from the ultrasound micro-bubble contrast agents Definity or Optison.

Read the Full Transcript: Severe Adverse Events with Ultrasound Micro-bubble Contrast Agents

Do I Have a Definity Lawsuit?

The Medical Device and Product Liability Litigation Group at our law firm is an experienced team of trial lawyers that focus exclusively on the representation of plaintiffs in defective medical product / device lawsuits. We are currently pursuing individual litigation nationwide and accepting new Definity cases in all 50 states. 

If you or a loved one have experienced an adverse event or serious side effect after having an echocardiogram where the Definity contrast agent was used, you should contact us immediately. You may be entitled to compensation by filing a Definity lawsuit and we can help.

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