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Related Concept Videos

Pulmonary Embolism I: Introduction01:29

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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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Pulmonary Embolism I: Introduction01:19

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A blood clot, or thrombus, is a semi-solid mass composed of fibrin, platelets, and red blood cells. When it forms within a vessel, it can obstruct blood flow, known as thrombosis. If part of the clot detaches, it becomes an embolus that can travel and block distant vessels. When this occurs in the pulmonary arteries, it causes a condition known as pulmonary embolism (PE).Origin and ImpactMost often, the embolus originates from a thrombus in the deep veins of the lower limbs, a condition called...
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Venous Thrombosis I: Introduction01:30

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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...
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Pulmonary Embolism II: Diagnostic Studies and Interprofessional Care01:29

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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...
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Pulmonary Embolism III: Nursing Management01:27

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A pulmonary embolism occurs when a thrombus, amniotic fluid, tumor tissue, fat, or air embolus blocks one or more pulmonary arteries. Effective nursing management and patient education are crucial for improving outcomes and preventing recurrence.Nursing management starts with obtaining a comprehensive patient history, particularly noting any history of deep vein thrombosis (DVT). Assess for clinical manifestations, including dyspnea, chest pain, crackles, heart murmurs, and signs of right-sided...
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Venous Thrombosis III: Interprofessional Care01:29

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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...
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A Porcine Model of Acute Autologous Pulmonary Embolism
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Paradoxical embolus in transit.

Berhane Worku1, Iosif Gulkarov1, Jeremy Steele2

  • 1Department of Cardiothoracic Surgery, Weill Cornell Medical College/New York Presbyterian Hospital, New York, New York; Department of Cardiothoracic Surgery, New York Methodist Hospital, New York, New York.

The Annals of Thoracic Surgery
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PubMed
Summary
This summary is machine-generated.

Paradoxical embolus in transit, a clot crossing a patent foramen ovale, signals potential arterial embolism. Early surgical clot removal is recommended for these rare cases.

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Area of Science:

  • Cardiovascular Medicine
  • Interventional Cardiology
  • Vascular Surgery

Background:

  • A paradoxical embolus in transit occurs when a thrombus (blood clot) straddles a patent foramen ovale (PFO), a hole between the heart's upper chambers.
  • This rare condition signifies a high risk of arterial embolism, where a clot travels to the arteries.

Observation:

  • This report details three patients where a paradoxical embolus in transit was identified either before or during surgery.
  • The embolus was observed straddling the patent foramen ovale in all cases.

Findings:

  • All three patients underwent surgical evacuation of the thrombus.
  • Postoperative recovery was uneventful, with no instances of arterial embolization occurring in any patient.

Implications:

  • Early surgical embolectomy should be strongly considered as a primary treatment strategy for paradoxical embolus in transit.
  • Prompt intervention can prevent serious complications like stroke or limb ischemia associated with arterial embolism.