Authors:
Tulppala M. Marttunen M. Soderstrom-Anttila V. Foudila T. Ailus K.
Palosuo T. Ylikorkala O.
Institution
M. Tulppala, Infertility Clinic, The Family Federation of Finland, Kalevankatu 16, 00100 Helsinki; Finland.
Title:
Low-dose aspirin in prevention of miscarriage in women with unexplained or autoimmune related recurrent miscarriage: Effect on prostacyclin and thromboxane A2 production (1997-1847).
Source:
Human Reproduction. Vol 12(7) (pp567-1572), 1997.
Abstract:
Early pregnancies in women with a history of recurrent spontaneous abortion (RSA) are accompanied by a deficiency in vasodilatory and anti-aggregatory prostacyclin (PGI2) and/or overproduction of its endogenous antagonist thromboxane A2 (TXA2). We evaluated the effect of a low-dose aspirin (LDA) on PGI2 and TXA2 production and on pregnancy outcome in RSA women with and without detectable anticardiolipin antibodies (ACA). Of 82 RSA women studied, 66 became pregnant, and of them, 33 (six with elevated and 27 with normal ACA concentrations) were randomized to receive LDA (50 mg/day) and 33 (six with elevated and 27 with normal ACA concentrations) to receive placebo (PLA) from a mean of 6.6 days after the missed period to delivery. Treatment with LDA inhibited platelet TXA2 production similarly in RSA women with and without detectable ACA and with continuing pregnancies (7.0 +/- 0.7 ng/ml, LDA group versus 254.5 +/- 37.8 ng/ml, PLA group, mean +/- SEM, P< 0.0001) or miscarrying pregnancies (13.8 +/- 3.8 ng/ml compared with 233.6 +/- 59.8 ng/ml, P< 0.0001 respectively). Furthermore, LDA decreased urinary excretion of the TXA2 metabolite (2,3-dinor-TXB2) both in pregnancies which went to term (6.1 +/- 0.6 ng/mmol creatinine, LDA group versus 19.3 +/- 3.0 ng/mmol creatinine, PLA group, P< 0.0001) or again ended in miscarriage (4.7 +/- 0.8 ng/mmol creatinine versus 17.3 +/- 4.4 ng/mmol creatinine, P< 0.0001 respectively), but did not affect the excretion of the prostacyclin metabolite (2,3-dinor-6-keto-PGF(1alpha)). Early pregnancy ultrasound examination revealed a living fetus in 58 women. Of these, seven in the LDA group (23.3%, four with elevated and three with normal ACA concentrations) and five in the PLA group (17.9%, two with elevated and three with normal ACA concentrations; not significant) experienced a miscarriage. All infants were healthy, and the Frequency of growth retardation was similar in both groups (13.0%). One woman in the LDA group (4.3%) and three women receiving PLA (13.0%) developed pre-eclampsia (not significant). Therefore, although treatment with LDA caused a desirable biochemical effect, it did not improve pregnancy outcome in RSA women with or without detectable ACA.
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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