CORRESPONDENCE preceded by disease of sufficient severity to have required treatment, the risk of stillbirth is 20%-27%, and these (20% of all cases) provide food for thought. It is especially in these that a further method of assessment, whether by antibody titrations, tests on liquor amnii, or other method, is needed.The time at which stillbirth occurs must also be taken into account, and this varies, the chance of the pregnancy reaching 35 weeks satisfactorily being only 30% following multiple stillbirths but 70% for "first affected" stillbirth. The nearer a pregnancy approaches term satisfactorily the less the risk of stillbirth, so that the later induction is delayed the greater its apparent benefit unless early stillbirths are taken into account. Induction at 37 to 38 weeks can ,possibly prevent 40% of all stillbirths, but less than 30% of those with a bad obstetrical history.We still require an accurate method of forecasting stillbirth in haemolytic disease, and, having forecast it, a better method than premature induction to forestall it.-We are, etc., W. WALKER.
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