Limited Compression Ultrasound by Emergency Physicians to Exclude Deep Vein Thrombosis

Queen's University

Status: Completed

Conditions: Deep Vein Thrombosis

Study type: Observational

Funder types: Other

Identifiers

NCT01007045

EMED-123-09

Details and patient eligibility

About

Deep vein thrombosis is a common condition seen in the Emergency Department. Standard of care for diagnosis of DVT includes a combination of a clinical pre-test probability rule known as Well's criteria, D-dimer blood testing, and Radiology department ultrasound.

The purpose of this study is to determine whether Emergency Physicians can safely rule out deep vein thrombosis using Well's criteria and D-dimer blood testing combined with Emergency department bedside ultrasound.

Enrollment: 227 patients

Sex: All

Ages: 16+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Age > 16 years
• Clinically suspected lower extremity DVT

Exclusion criteria

• Known chronic DVT
• Acute DVT confirmed by prior formal imaging
• Inability to assess common femoral or popliteal area (due to cast, above knee amputation, etc.)
• Anticoagulation >48 hours prior to imaging (formal or LCU)

Trial design

227 participants in 2 patient groups

Clinically "likely"

Description:

Subjects deemed clinically likely to have DVT based on modified Well's criteria

Clinically "unlikely"

Description:

Subjects deemed clinically unlikely to have DVT based on modified Well's criteria