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Related Experiment Videos

[Venous echography. What value should be attributes to a negative result?].

P Bendayan1, H Boccalon

  • 1Service d'Angiologie, CHU Rangueil, Toulouse.

Annales De Cardiologie Et D'Angeiologie
|September 1, 1991
PubMed
Summary

Two-level ultrasonography accurately diagnoses deep venous thrombosis. Negative ultrasound results in patients suspected of deep venous thrombosis can safely forgo anticoagulant treatment, showing no adverse effects.

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Area of Science:

  • Vascular Medicine
  • Diagnostic Imaging

Background:

  • Deep venous thrombosis (DVT) is a significant clinical concern.
  • Accurate and timely diagnosis is crucial for effective patient management.

Purpose of the Study:

  • To evaluate the diagnostic reliability of two-level ultrasonography for deep venous thrombosis.
  • To assess the safety of withholding anticoagulant treatment in patients with negative ultrasound findings.

Main Methods:

  • 471 patients with suspected lower limb DVT underwent two-level ultrasonography.
  • Phlebographic comparison was performed in 185 patients to validate ultrasound accuracy.
  • 286 patients with negative ultrasound results were followed up, with some receiving prophylactic anticoagulation and others not.

Main Results:

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  • Two-level ultrasonography demonstrated high sensitivity (94%) and specificity (86%) compared to phlebography.
  • Follow-up of patients with negative ultrasound findings revealed no significant difference in phlebitis incidence between those treated with anticoagulants and those not.
  • No fatal pulmonary emboli occurred in the study cohort.

Conclusions:

  • Two-level ultrasonography is a reliable method for diagnosing deep venous thrombosis.
  • Negative ultrasound results can safely guide the decision to withhold anticoagulant therapy, reducing unnecessary treatment and associated risks.