Can an autoimmune problem cause recurrent miscarriages?

Abstract:

Objectives:

To determine whether treatment with low dose aspirin and heparin leads to a higher rate of live births than that achieved with low dose aspirin alone in women with a history of recurrent miscarriage associated with phospholipid antibodies (or antiphospholipid antibodies), lupus anticoagulant, and cardiolipin antibodies (or anticardiolipin antibodies).

Design:

Randomised controlled trial.

Setting:

Specialist clinic for recurrent miscarriages. Subjects: 90 women (median age 33 (range 22-43)) with a history of recurrent miscarriage (median number 4 (range 3-15)) and persistently positive results for phospholipid antibodies.

Intervention:

Either low dose aspirin (75 mg daily) or low dose aspirin and 5000 U of unfractionated heparin subcutaneously 12 hourly. All women started treatment with low dose aspirin when they had a positive urine pregnancy test. Women were randomly allocated an intervention when fetal heart activity was seen on ultrasonography. Treatment was stopped at the time of miscarriage or at 34 weeks' gestation.

Settings, Design and Main Outcome Measures:

Rate of live births with the two treatments.

Results:

There was no significant difference in the two groups in age or the number and gestation of previous miscarriages. The rate of live births with low dose aspirin and heparin was 71% (32/45 pregnancies) and 42% (19/45 pregnancies) with low dose aspirin alone (odds ratio 3.37 (95% confidence interval 1.40 to 8.10)). More than 90% of miscarriages occurred in the first trimester. There was no difference in outcome between the two treatments in pregnancies that advanced beyond 13 weeks' gestation. Twelve of the 51 successful pregnancies (24%) were delivered before 37 weeks' gestation. Women randomly allocated aspirin and heparin had a median decrease in lumbar spine bone density of 5.4% (range -8.6% to 1.7%).

Conclusion:

Treatment with aspirin and heparin leads to a significantly higher rate of live births in women with a history of recurrent miscarriage associated with phospholipid antibodies than that achieved with aspirin alone.

Please click on the required question.

• 1  What is a miscarriage?
• 2  What are the different types of miscarriage?
• 3  How accurate are pregnancy tests?
• 4 What is a blighted ovum?
• 5 I have had a hydatidiform mole. What is this?
• 6 Why did I have a spontaneous miscarriage?
• 7 How frequently do miscarriages occur?
• 8 I am miscarrying. How should this be treated?
• 8a Can miscarriage result in anxiety and depression?
•  9 What is meant by recurrent miscarriage?
• 10 I have a problem with recurrent miscarriage. What is the chance of my next pregnancy being successful?
• Q 12.11 Recurrent Miscarriage I have miscarried again. Why does this keep happening?
• 12 What congenital problems might be associated with recurrent miscarriage and how could they be treated?
• 13 What traumatic conditions can cause recurrent miscarriage and how can they be treated?
• 14 Can infection cause recurrent miscarriage and would treatment help?
• 15 Could a metabolic disorder cause recurrent miscarriage?
• 16 Could a hormonal problem account for recurrent miscarriage and would hormone treatment help me?
• 17 Could an autoimmune problem cause recurrent miscarriage and how could this be treated?
• 18 Could a tumour cause recurrent miscarriage?
• 19 What degenerative processes may be associated with recurrent miscarriage?
• 20 After every miscarriage I become more depressed. Could this account for the problem?
• 21 Is it always possible to explain recurrent miscarriage?
• 22 I have a problem with recurrent miscarriage. What treatment is available to ensure that this does not happen again?
• 23 What is an ectopic pregnancy?
• 24 How frequently do ectopic pregnancies occur?
• 25 Why do ectopic pregnancies occur?
• 26 How can an ectopic pregnancy be diagnosed?
• 27 How can an ectopic pregnancy be treated?
• 28 Where can I obtain more information?
• 29 Support Groups.
  

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This is the personal website of David A Viniker MD FRCOG, Consultant Obstetrician and Gynaecologist at Whipps Cross University Hospital, London - Specialist Interests - Reproductive Medicine including Infertility, PCOS, PMS, Menopause and HRT.

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