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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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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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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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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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Thoracentesis(Thoracocentesis), commonly known as pleural tap, is a medical procedure where a 22 gauge needle is inserted into the pleural space, the area between the lung and chest wall. This procedure is commonly performed to diagnose or treat various respiratory disorders.
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Related Experiment Video

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Modeling Encephalopathy of Prematurity Using Prenatal Hypoxia-ischemia with Intra-amniotic Lipopolysaccharide in Rats
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[Last updates about amniotic fluid embolism and a case report].

Jérémie Rosain1, Frédéric Le Saché2, Aurélie Birenbaum2

  • 1Service de biochimie métabolique, Groupe hospitalier Pitié-Salpêtrière, Paris, France.

Annales De Biologie Clinique
|December 18, 2013
PubMed
Summary

Amniotic fluid embolism (AFE), a rare pregnancy complication and leading cause of maternal mortality, involves amniotic fluid entering maternal circulation. Diagnostic laboratory tests are crucial but no single test confirms AFE.

Keywords:
alpha-foetoproteinamniotic fluid embolisminsulin-like growth factor binding protein-1pregnancytryptase

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Area of Science:

  • Obstetrics and Gynecology
  • Critical Care Medicine
  • Reproductive Biology

Background:

  • Amniotic fluid embolism (AFE) is a rare obstetric emergency, accounting for significant maternal mortality in France.
  • The pathophysiology of AFE, involving amniotic fluid entering maternal circulation, remains incompletely understood.
  • Identifying reliable diagnostic markers for AFE is critical due to its severity and rarity.

Observation:

  • This report details a case of AFE in a 34-year-old patient during labor.
  • Acute phase laboratory tests focused on coagulopathy and vital parameter monitoring.
  • Additional tests included cytology, insulin-like growth factor-binding protein 1, tryptase, and alpha-fetoprotein.

Findings:

  • Laboratory investigations play a supportive role in diagnosing AFE and managing associated coagulopathies.
  • Specific biomarkers like insulin-like growth factor-binding protein 1 and tryptase may aid in diagnosis.
  • No single laboratory test definitively confirms the diagnosis of amniotic fluid embolism.

Implications:

  • Precise evaluation of laboratory test performance is necessary for accurate AFE diagnosis.
  • Improved diagnostic strategies for AFE could lead to earlier intervention and better maternal outcomes.
  • Further research into AFE mechanisms and diagnostic markers is warranted to reduce maternal mortality.