Low accuracy of color doppler ultrasound in the detection of proximal leg vein thrombosis in asymptomatic high-risk patients

Article Abstract:

Color Doppler ultrasound may be less effective than venography for detecting deep venous thrombosis (DVT) in the veins of the lower legs of high-risk patients. DVT is the formation or presence of a blood clot in a vein. Both color Doppler ultrasound and venography were used to detect DVT in the lower legs of 319 patients who had had hip or knee replacement surgery. DVT was detected in 80 patients using venography. Color Doppler detected DVT in only 16 of these patients. Twenty-one of the patients had a blood clot in a vein near the joint. Color Doppler ultrasound detected DVT in only eight of these patients. Color Doppler ultrasound is expensive, and may miss many cases of DVT.

Usage, Thrombosis, Doppler ultrasonography

---

The Role of Venous Ultrasonography in the Diagnosis of Suspected Deep Venous Thrombosis and Pulmonary Embolism

Article Abstract:

Venous ultrasonography may be useful in certain conditions for diagnosing deep vein thrombosis or pulmonary embolism. Deep vein thrombosis occurs when a blood clot forms in the large veins of the legs. If the clot travels to the lungs, it causes pulmonary embolism. Doctors can tell whether a clot is present by using ultrasound scans on the legs. However, venous ultrasonography is less accurate in patients who have no symptoms. Venous ultrasonography should be used with other diagnostic techniques, such as risk assessment. Risk assessment identifies patients who are at low risk of deep vein thrombosis or high risk.

Pulmonary embolism

---

Accuracy of ultrasound for the diagnosis of deep venous thrombosis in asymptomatic patients after orthopedic surgery: a meta-analysis

Article Abstract:

Ultrasonography may miss some deep venous clots occurring among patients after hip or knee surgery. Even with preventative measures, these clots form about 15% to 20% of the time after hip replacement surgery and about 20% to 30% of the time after major knee surgery. Data from 16 studies published between 1982 and 1993 were reviewed. All studies compared ultrasound imaging to contrast venography. Ultrasonography detected 62% of clots among studies that minimized the chance for bias. Thus, venous clots would be missed in four of every 10 patients screened by ultrasonography.

Complications and side effects, Orthopedic surgery

Similar abstracts:

• Abstracts: Factors influencing the selection of appropriate pain assessment tools
• Abstracts: Online continuing dental education. Can technology help dentists deliver better patient care?
• Abstracts: Efficacy of pamidronate in reducing skeletal events in patients with advanced multiple myeloma. Lenalidomide plus dexamethasone for relapsed or refractory multiple myeloma
• Abstracts: Key Internet genetics resources for the clinician. Genomic profiles for disease risk: predictive or premature?
• Abstracts: Make sure and claim all your deductions to the IRS. What to consider in negotiating sale of your practice. New year a good time to resolve to keep better records

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.