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The Long-term Value of Preoperative Duplex Before Surgery for Varicose Veins

NCT01195623 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 293

Last updated 2013-02-15

Study results available
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Summary

Duplex imaging is costly and time-consuming, but is used increasingly for preoperative evaluation of varicose veins. Its value in terms of the long-term results of surgery is not clear. 293 patients (343 limbs) with primary varicose veins were randomized to operation with or without preoperative duplex imaging. Reoperation rates, clinical and duplex findings were compared at 2 months and 2 years after surgery. Routine preoperative duplex examination led to an improvement in results. However two years is a short time, and with a longer follow-up other mechanisms for recurrence may become more important, e.g. neovascularization (new vessel formation) or progression of disease, hence the value of a detailed preoperative diagnosis may be diminished. The aim of this phase of the investigation is to study the results after 8 years, in particular what mechanisms for recurrences were most important.

Conditions

  • Varicose Veins

Interventions

PROCEDURE

preoperative duplex examination

PROCEDURE

Preoperative duplex

Sponsors & Collaborators

  • Capio Research Foundation

    collaborator OTHER

  • Region Stockholm

    collaborator OTHER_GOV

  • Uppsala University Hospital

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
DIAGNOSTIC
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
20 Years
Max Age
75 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
1997-11-30
Primary Completion
2003-09-30
Completion
2010-08-31

Countries

  • Sweden

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT01195623 on ClinicalTrials.gov