WARNING: SPINAL/EPIDURAL HEMATOMA
Epidural or spinal hematomas may occur in patients who are anticoagulated with low molecular weight heparins (LMWH) or heparinoids and are receiving neuraxial anesthesia or undergoing spinal puncture. These hematomas may result in long-term or permanent paralysis. Consider these risks when scheduling patients for spinal procedures. Factors that can increase the risk of developing epidural or spinal hematomas in these patients include:
Monitor patients frequently for signs and symptoms of neurological impairment. If neurological compromise is noted, urgent treatment is necessary.
Consider the benefits and risks before neuraxial intervention in patients anticoagulated or to be anticoagulated for thromboprophylaxis.
LOVENOX® is indicated for the prophylaxis of deep vein thrombosis (DVT), which may lead to pulmonary embolism (PE):
Total hip-replacement (THR) surgery—in symptomatic DVT during hospitalization, LOVENOX® 30 mg q12h SC significantly reduced DVT risk vs warfarin (0.26% vs 1.14%, respectively; P=0.008) 11,b
Benefit/risk profile Based upon these calculations from trial results, LOVENOX® had an estimated 9 fewer symptomatic DVT events during hospitalization per 1000 hip-replacement patients vs warfarin, with 3 additional major bleeds 10,c
LOVENOX® was proven through 21 days of continued DVT prophylaxis in THR 13
Total knee-replacement (TKR) surgery—in venous thromboembolism (VTE) documented by venography, LOVENOX® 30 mg SC twice daily significantly reduced VTE risk vs warfarin (25.4% vs 45.5%, respectively; P<0.001) 12,d
Benefit/risk profile Based upon these calculations from trial results, LOVENOX® had an estimated 201 fewer DVT events per 1000 knee-replacement patients vs warfarin, with 29 additional major bleeds 10,c
aWarfarin initiated at 7.5 mg daily and adjusted to target international normalized ratio 2.0–3.0. 11,12
bThis study was a randomized, multicenter, open-label, parallel-group clinical trial. 11
cThe NNT and the benefit/risk profile were not prespecified analyses in the trials and were calculated using the reported absolute risk reduction results. 10
dThis study was a prospective, randomized, multicenter, open-label, parallel-group clinical trial. 12
NNT=number needed to treat; RRR=relative risk reduction.
Monitor patients frequently for signs and symptoms of neurological impairment. If neurological compromise is noted, urgent treatment is necessary. Consider the benefits and risks before neuraxial intervention in patients anticoagulated or to be anticoagulated for thromboprophylaxis.
For more information, contact your local sanofi-aventis U.S. Representative or call sanofi-aventis U.S. Medical Information Services at 1-800-633-1610.
Please see full Prescribing Information, including boxed WARNING.
Prescription LOVENOX® is available in pharmacies.
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