See also:
All venous thrombosis clinical trials
All clinical trials of caval filter
All clinical trials of caval filter
|
|
Treatments
Studied treatment |
caval filter
|
Control treatment |
no filter
|
Remarks |
2x2 factorial design also comparing LMWH vs unfractionated heparin |
Patients
Patients |
patients with documented proximal DVT or PE, and considered high risk for pulmonary
embolism |
Exclusion criteria |
previous filter; contraindication or failure of anticoagulation; curative anticoagulation > 48 hours duration; indication for thrombolysis; short life expectancy; allergy to iodine; hereditary thrombophilia; severe renal or hepatic failure; pregnancy; likely non-compliance |
Method and design
Randomized effectives |
200 / 200 (studied vs. control) |
Design |
Parallel groups |
Blinding |
open |
Follow-up duration |
12 days and 2 years |
Primary endpoint |
none |
Results
Endpoint
Studied treat. n/N
Control treat. n/N
Graph
RR [95% CI]
asymptomatic pulmonary embolism
0 / 200
4 / 200
classic
0,06 [0,00;3,31]
Major bleeding
9 / 200
6 / 200
classic
1,50 [0,54;4,14]
symptomatic pulmonary embolism
2 / 200
5 / 200
classic
0,40 [0,08;2,04]
pulmonary embolism (symptomatic and asymptomatic)
NA / 200
NA / 200
0,22 [0,05;0,93]
All cause death
5 / 200
5 / 200
classic
1,00 [0,29;3,40]
0
2
1.0
Relative risks
|
Endpoint |
Events (%) |
Relative Risk |
95% CI |
Endpoint definition in the trial |
Ref |
Studied treat. |
Control treat. |
asymptomatic pulmonary embolism
|
0 / 200 (0,3%) |
4 / 200 (2,0%) |
0,13 |
[0,01;2,35] |
|
0 |
Major bleeding
|
9 / 200 (4,5%) |
6 / 200 (3,0%) |
1,50 |
[0,54;4,14] |
|
0 |
symptomatic pulmonary embolism
|
2 / 200 (1,0%) |
5 / 200 (2,5%) |
0,40 |
[0,08;2,04] |
|
0 |
pulmonary embolism (symptomatic and asymptomatic)
|
2 / 200 (1,0%) |
9 / 200 (4,5%) |
0,22 |
[0,05;1,02] |
odds ratio |
0 |
All cause death
|
5 / 200 (2,5%) |
5 / 200 (2,5%) |
1,00 |
[0,29;3,40] |
|
0 |
The primary endpoint (if exists) appears in blod characters
|
Reference(s) used for data extraction:
0:
|
Endpoint |
studied treat. |
control treat. |
mean diff |
Absolute risk reduction
|
Endpoint |
Events rate |
Absolute risk reduction (ARR) |
Studied treat. |
Control treat. |
Major bleeding |
4,50% |
3,00% |
1,5%
|
symptomatic pulmonary embolism |
1,00% |
2,50% |
-15,0‰
|
pulmonary embolism (symptomatic and asymptomatic) |
1,00% |
4,50% |
-35,0‰
|
All cause death |
2,50% |
2,50% |
0,0‰
|
Reference(s)
-
Decousus H, Leizorovicz A, Parent F, Page Y, Tardy B, Girard P, Laporte S, Faivre R, Charbonnier B, Barral FG, Huet Y, Simonneau G.
A clinical trial of vena caval filters in the prevention of pulmonary embolism in patients with proximal deep-vein thrombosis. Pr�vention du Risque d'Embolie Pulmonaire par Interruption Cave Study Group..
N Engl J Med 1998;338:409-15
Pubmed
|
Hubmed
| Fulltext
-
.
Eight-year follow-up of patients with permanent vena cava filters in the prevention of pulmonary embolism: the PREPIC (Prevention du Risque d'Embolie Pulmonaire par Interruption Cave) randomized study..
Circulation 2005;112:416-22
Pubmed
|
Hubmed
| Fulltext
|