Published online by Cambridge University Press: 01 February 2010
Heparin is the most commonly used pharmacologic intervention to prevent or treat thrombosis in pregnancy. Both unfractionated heparin and low molecular weight heparins have been used successfully for therapeutic and prophylactic anticoagulation during gestation. Conversely, the use of coumadin in pregnancy is not advised as the drug crosses transplacentally and has been associated with a risk of fetal embryopathy and hemorrhage. The use of heparin, however, can have adverse clinical side effects for the pregnant female that include heparin-associated osteoporosis, eosinophilia, allergic reactions, ski rashes, and alopecia. However, the most significant and potentially devastating consequence is the development of heparin-induced thrombocytopenia. This is particularly true when the thrombocytopenia is paradoxically associated with either a venous or arterial thrombosis. Although heparin and low-molecular-weight (LMW) heparins are generally considered safe during pregnancy, a recent adverse reaction MedWatch report has been issued regarding the use of enoxaparin in pregnancy. This MedWatch report, issued January 9 2002 states the following: PRECAUTIONS:
Pregnancy
Teratogenic effects
There have been reports of congenital anomalies in infants born to women who received enoxaparin during pregnancy including cerebral anomalies, limb anomalies, hypospadias, peripheral vascular malformation, fibrotic dysplasia, and cardiac defect. A cause and effect relationship has not been established nor has the incidence been shown to be higher than in the general population.
Non-teratogenic effects
There have been post-marketing reports of fetal death when pregnant women received Lovenox Injection. Causality for these cases has not been determined. Pregnant women receiving anti-coagulants, including enoxaparin, are at increased risk for bleeding. Hemorrhage can occur at any site and may lead to death of mother and/or fetus. […]
To save this book to your Kindle, first ensure [email protected] is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about saving to your Kindle.
Note you can select to save to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.
Find out more about the Kindle Personal Document Service.
To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Dropbox.
To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.