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Trial details imported from ClinicalTrials.gov

For full trial details, please see the original record at https://clinicaltrials.gov/show/NCT00163956




Registration number
NCT00163956
Ethics application status
Date submitted
12/09/2005
Date registered
14/09/2005
Date last updated
4/10/2006

Titles & IDs
Public title
Failed Retrieval of Inferior Vena Cava (IVC) Filters: Long-Term Outcomes
Scientific title
Failed Retrieval of Inferior Vena Cava (IVC) Filters: Long-Term Outcomes
Secondary ID [1] 0 0
AlfRad2005-1
Universal Trial Number (UTN)
Trial acronym
Linked study record

Health condition
Health condition(s) or problem(s) studied:
DVT 0 0
PE 0 0
Condition category
Condition code

Intervention/exposure
Study type
Observational
Patient registry
Target follow-up duration
Target follow-up type
Description of intervention(s) / exposure
Comparator / control treatment
Control group

Outcomes

Eligibility
Key inclusion criteria
- na
Minimum age
18 Years
Maximum age
80 Years
Gender
Both males and females
Can healthy volunteers participate?
No
Key exclusion criteria
- na

Study design
Purpose
Duration
Longitudinal
Selection
Timing
Retrospective
Statistical methods / analysis

Recruitment
Recruitment status
Unknown status
Data analysis
Reason for early stopping/withdrawal
Other reasons
Date of first participant enrolment
Anticipated
Actual
Date of last participant enrolment
Anticipated
Actual
Date of last data collection
Anticipated
Actual
Sample size
Target
Accrual to date
Final
Recruitment in Australia
Recruitment state(s)
VIC
Recruitment hospital [1] 0 0
Radiology Department, The Alfred - Melbourne
Recruitment postcode(s) [1] 0 0
3004 - Melbourne

Funding & Sponsors
Primary sponsor type
Other
Name
Bayside Health
Address
Country

Ethics approval
Ethics application status

Summary
Brief summary
The inferior vena cava (IVC) is a large vein that enters the bottom part of the heart. Venous
blood from the lower portion of the body drains into the IVC. The IVC then returns blood back
to the heart. An IVC filter is placed to help prevent the blood clots moving from the legs to
the heart or lung. The idea behind using a filter in the IVC is to capture potential fatal
pulmonary emboli at an anatomical location where they may pose less risk for the patient.
Early filters, 1960's and 70's were, remained in the vein permanently. More recently,
temporary or retrievable filters have been developed and are being widely used.

Complications have been demonstrated with long-term placement of IVC filters. In a randomised
study it was found that that patients with IVC filter placement had greater than three times
the incidence of recurrent deep vein thrombosis (DVT) compared to their control population at
two years. Blockage of the vein, recurrent pulmonary emboli, filter penetration and filter
fragmentation have all been described.

With the advent of retrievable filters (filters that can be place temporarily and then
removed at a later date) there has been renewed popularity for placement of temporary
filters. To our knowledge, no one has yet to follow the population of intended temporary IVC
filters, who undergo failed retrieval, and consequently end up with a permanent IVC filter.

We plan to prospectively enrol 40 Alfred patients who have undergone a temporary IVC filter
placement and subsequently have had failed IVC filter retrieval.

Our aim is to evaluate the long term outcomes for patients with failed IVC retrieval.

Specifically we will determine the risk, due to failed filter retrieval, of:

- IVC stenosis

- IVC occlusion

- Development of DVT and

- analyse the clinical outcomes (symptoms), their prevalence and their distribution

Patients will receive routine care and their data will be analysed annually as collected. The
follow-up period is indefinite and will be at the discretion of the treating doctor.
Trial website
https://clinicaltrials.gov/show/NCT00163956
Trial related presentations / publications
Public notes

Contacts
Principal investigator
Name 0 0
Stuart Lyon, MBBS RANZCR
Address 0 0
Bayside Health
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for public queries
Name 0 0
Stuart Lyon, MBBS FRANZCR
Address 0 0
Country 0 0
Phone 0 0
61 3 9276 2000
Fax 0 0
Email 0 0
s.lyon@alfred.org.au
Contact person for scientific queries

Summary results
For IPD and results data, please see https://clinicaltrials.gov/show/NCT00163956