Abstract:
OBJECTIVE:To assess, by systematic review, the efficacy and safety of recombinant tissue plasminogen activator (rt-PA) in the treatment of lower extremity deep venous thrombosis (DVT). A secondary objective is to assess the optimal dose and route of administration of rt-PA. METHODS:Included studies were randomized, controlled trials comparing rt-PA plus unfractionated heparin (UFH) to UFH alone, rt-PA at different doses, or rt-PA by different routes of administration in the treatment of DVT. Outcomes had to be described in terms of percent change in venographic patency for efficacy (>50% lysis) and in sufficient detail for complications (major and minor hemorrhages and other). The search strategy included searching electronic databases and contacting pharmaceutical agencies and content experts. Study quality was assessed using the Jadad scale. A threshold quality score was used to exclude trials. RESULTS:Five studies met the following inclusion criteria: three comparing rt-PA plus UFH vs UFH alone (180 patients); one comparing high-dose vs low-dose rt-PA (32 patients); and one comparing systemic vs local administration of rt-PA (151 patients). In studies comparing rt-PA vs placebo, patients assigned to rt-PA were more likely to have > 50% lysis and complications (summary odds ratios [OR], 11.7; 95% confidence interval [CI], 2.61 to 52.5; and OR, 9.95; 95% CI, 2.21 to 44.7, respectively). Major and intracerebral hemorrhages were not significantly increased. One study comparing different doses demonstrated that high-dose and low-dose rt-PA were equally efficacious (OR, 0.88; 95% CI, 0.05 to 14.78). Local rt-PA was neither more efficacious nor riskier than systemic rt-PA. CONCLUSION:This systematic review does not support routine use of rt-PA for DVT.
journal_name
Chestjournal_title
Chestauthors
Forster A,Wells Pdoi
10.1378/chest.119.2.572subject
Has Abstractpub_date
2001-02-01 00:00:00pages
572-9issue
2eissn
0012-3692issn
1931-3543pii
S0012-3692(15)38239-8journal_volume
119pub_type
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