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Radiological Investigation III: Pulmonary Angiogram and PET Scan01:13

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Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...
Venous Thrombosis IV: Nursing Management01:30

Venous Thrombosis IV: Nursing Management

Nursing management begins with a thorough assessment of the patient's health history. Key factors include trauma to veins, peripherally inserted central catheters, varicose veins, recent pregnancy or childbirth, surgery, bacteremia, prolonged bed rest, atrial fibrillation, COPD, heart failure, cancer, coagulation disorders, myocardial infarction, spinal cord injury, stroke, prolonged travel, recent bone fractures, and dehydration. Review medication intake, particularly oral contraceptives,...
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...
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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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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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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Chronic Thromboembolic Pulmonary Hypertension and Assessment of Right Ventricular Function in the Piglet
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Published on: November 4, 2015

¿Tiene este paciente una embolia pulmonar?

Sanjeev D Chunilal1, John W Eikelboom, John Attia

  • 1Department of Medicine, McMaster University, Hamilton, Ontario, Canada.

JAMA
|December 6, 2003
PubMed
Resumen

Las reglas de predicción clínica y el gestalt de los médicos experimentados evalúan con precisión la probabilidad de pretest de embolia pulmonar. Se recomiendan reglas de predicción para un uso más amplio por parte de profesionales de la salud con menos experiencia.

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Área de la Ciencia:

  • Medicina Pulmonar La medicina pulmonar es el tratamiento de las enfermedades pulmonares.
  • Precisión en el diagnóstico.
  • La toma de decisiones clínicas.

Sus antecedentes:

  • Las ayudas de gestalt de los clínicos experimentados en la estimación de la probabilidad de embolia pulmonar pretest.
  • La comparabilidad de las reglas de predicción clínica con el gestalt para esta evaluación no está clara.
  • Las reglas de predicción clínica podrían empoderar a los profesionales menos experimentados en el diagnóstico de la embolia pulmonar.

Objetivo del estudio:

  • Para comparar la precisión de la gestalt clínica frente a la RCP en la evaluación de la probabilidad de pretest para la embolia pulmonar.
  • Evaluar la utilidad de las RCP para simplificar el diagnóstico de la EP.

Principales métodos:

  • Se realizó una búsqueda sistemática de la literatura de MEDLINE (1966-2003) y las bibliografías.
  • Los estudios incluyeron pacientes consecutivos no seleccionados con médicos ciegos a los resultados de las pruebas de diagnóstico.
  • Dieciséis estudios con 8306 pacientes cumplieron con los criterios de inclusión para el análisis final.

Principales resultados:

  • El gestalt clínico mostró tasas de PE de 8-19% (baja), 26-47% (moderada) y 46-91% (alta) de probabilidad.
  • Las CPR demostraron tasas de PE de 3-28% (baja), 16-46% (moderada) y 38-98% (alta) de probabilidad.
  • Ambos métodos mostraron una precisión similar en la discriminación de las categorías de riesgo de PE.

Conclusiones:

  • La gestalt clínica y la RCP exhiben una precisión comparable en la estratificación de los pacientes por probabilidad de pretest de EP.
  • Las RCP son recomendadas debido a su probada exactitud y aplicabilidad por médicos con diferentes niveles de experiencia.
  • La combinación de baja probabilidad de pretest (a través de CPR) y una prueba negativa de D-dimero confiablemente excluye PE.