[Sensitivity and specificity of meta-iodobenzylguanidine (mIBG) scintigraphy in the evaluation of neuroblastoma: analysis of 115 cases].

Seventy children (3.7 +/- 3.3 y) with definitely confirmed diagnosis of neuroblastoma had 115 whole body scans carried out 24 h after injection of 3.

Can the number of cesarean sections be reduced without risk? An analysis of rates and indications in a university clinic.

This study concerns women followed from the first trimester of pregnancy, in a university clinic in Paris in 1977, 1979 and 1981. The cesarean section rate was separately analysed for primiparas, and multiparas with and without previous cesarean section. The overall rate of cesarean section was 11.

[Fetal hypotrophy. Statistical analysis of placental changes].

The purpose of this research was to study the relationship between placental characteristics and the degree of failure of growth between 37 and 41 weeks of pregnancy. The cases of severe small-for-dates (percentiles of 1 to 5) and moderate small-for-dates (percentiles of 6 to 10) were compared with a control series (percentiles of 11 to 90) with an equivalent gestational age. In both groups of small-for-dates babies one could find that the chorionic arteries and their trunks were of a lower diameter than those of the villi that were small and that there were sub- chorial deposits of fibrin in both groups.

Fetal growth retardation in gestational hypertension: relationships with blood pressure levels and the time of onset of hypertension.

To evaluate the effects of gestational hypertension on fetal growth, we studied the standardized records of 2996 single live-birth pregnancies. Mothers all had documented diastolic blood pressure of less than 85 mmHg before the 16th wk of amenorrhea and no history of pre-pregnancy hypertension or kidney disease. Diastolic blood pressure readings exceeding 84 mmHg were found later in pregnancy in 38.

[Incidence and fetal impact of hypertension in pregnancy: study of 2996 pregnancies].

To evaluate the incidence and the foetal effects of gestational hypertension, we studied 2 996 pregnancies with a single live birth in mothers selected on the basis of 1) a documented diastolic blood pressure (DBP) less than 90 mmHg before the 16th week of amenorrhea and 2) no history of hypertension or kidney disease. In 38,4% of the gravidas, the highest DBP during pregnancy was greater than or equal to 90 mmHg, and in 15,4% this level was reached twice or more. Gestational hypertension (two DBP readings greater than or equal to 90 mmHg) was more frequent in nullipara than in mothers with previous pregnancies (17,9 versus 12,4%, p less than 0,01) and its incidence tended to decrease with increasing maternal age.

[A study of the prognosis at one year after restorative tubal surgery in the treatment of sterility (author's transl)].

A cooperative study has been carried out on 301 women who were operated on for tubal sterility in 9 centres in different countries between 1969 and 1974. 19 per cent of these started an intra-uterine pregnancy and 4 per cent an extra-uterine pregnancy during the first year they were followed up. The results reaffirm the poor prognosis of genital tuberculosis, of tubal blocks found on hysterosalpingography and of adhesions discovered on laparoscopy.

[The evolution of perinatal pathology and its prevention in France. The national enquiries by INSERM in 1972-1976 (author's transl)].

Two national enquiries were carried out in France by INSERM in 1972 and in 1975-76 in order to review the efficiency of using medical discoveries and health programmes. The first was carried out on a representative sample of 11,254 deliveries and the second on a representative sample of 4,685 deliveries. The perinatal mortality rate and the prematurity rate have gone down quite definitely, while on the other hand the birth weight has stayed more or less identically the same and the number of small-for-dates babies has not become less and in fact there is a slight tendency for a rise in the number.

[Feto-infantile births and deaths. Statistical data].

After a period of stability between 1968 and 1971 the birth-rate was lowered slightly in 1972-1973. The first projections worked out by INSEE lead us to predict that there will be a considerable drop in the number of births in 1974 (800, 000 as against 855,000 in 1973). Perinatal mortality has dropped rapidly since 1969.