Related Experiment Video
Updated: Feb 6, 2026
06:45
Point-Of-Care Ultrasound Screening for Proximal Lower Extremity Deep Venous Thrombosis
Published on: February 10, 2023
16.3K
Clinical Probability Tools for Deep Venous Thrombosis, Pulmonary Embolism, and Bleeding
Eileen M Harder1, Omkar Desai2, Peter S Marshall2
1Department of Internal Medicine, Yale University School of Medicine, 15 York Street, LCI 101, New Haven, CT 06520, USA.
Clinics in Chest Medicine
|August 21, 2018
Summary
Overdiagnosis of venous thromboembolism (VTE) leads to complications and costs. Clinical tools aid VTE risk assessment with d-dimer testing, but bleeding risk tools are less reliable.
Area of Science:
- Medical Diagnostics
- Clinical Risk Stratification
- Health Services Research
Background:
- Overdiagnosis of venous thromboembolism (VTE) contributes to patient complications and increased healthcare expenditure.
- Existing clinical tools aim to estimate the probability of pulmonary embolism and deep venous thrombosis.
- Accurate risk assessment is crucial for appropriate diagnostic testing and patient management.
Purpose of the Study:
- To evaluate the utility of clinical tools in VTE risk stratification.
- To assess the reliability of existing bleeding risk assessment tools.
- To inform the appropriate use of diagnostic testing in VTE evaluation.
Main Methods:
- Review of existing clinical probability scores for VTE.
- Analysis of d-dimer testing integration with clinical tools.
- Comparison of validation and reliability of bleeding risk assessment tools.
Main Results:
- Clinical tools, when combined with d-dimer testing, effectively stratify VTE risk.
- These tools help guide the necessity of further diagnostic tests for VTE.
- Bleeding risk assessment tools are currently less validated and lack consistent reliability.
Conclusions:
- Clinical decision rules and d-dimer testing improve VTE diagnostic accuracy.
- Further development and validation of reliable bleeding risk tools are needed.
- Optimizing diagnostic strategies reduces overdiagnosis and associated healthcare burdens.
Related Concept Videos
01:20Venous Thrombosis II: Clinical Manifestations and Diagnostic Studies
348
The key difference between Superficial Vein Thrombosis (SVT) and Deep Vein Thrombosis (DVT) lies in their location and severity.Clinical ManifestationsSVT typically presents with localized pain, tenderness, and redness along the course of a superficial vein, often accompanied by a palpable, cord-like structure under the skin. This condition is usually less dangerous than DVT but can be uncomfortable and may lead to complications such as cellulitis or, rarely, a clot extension into the deep...
348
01:30Venous Thrombosis I: Introduction
474
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...
474
01:29Pulmonary Embolism I: Introduction
735
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...
735
01:29Venous Thrombosis III: Interprofessional Care
373
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...
373
01:30Venous Thrombosis IV: Nursing Management
268
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,...
268
01:27Pulmonary Embolism III: Nursing Management
448
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...
448