title: [Twin pregnancies: incidence, fetal development and perinatal mortality].
abstract: The authors study 233 pairs of twins in a big maternity of Tunis, they analyse the frequency, the intra-uterine growth and the perinatal mortality. The frequency of twinning was 1.56%, the occurrence of preterm delivery was 45.92% and foetal hypotrophy was observed in 9.84% of the cases. The perinatal mortality rate was 143.77%: still born = 55.79% and neonatal deaths = 87.98%; the ratio of still born to neonatal deaths was 1.6. 29.3% of the neonatal twin deaths were due to hyaline membrane disease, 24.5% to immaturity, 14.6% to perinatal asphyxia and 12.4% to infection. The authors compare their findings to other studies on twin pregnancies.
mesh_terms: D005260:Female; D005313:Fetal Death; D005333:Fetus / Q000502:physiology*; D006128:Growth; D006801:Humans; D007226:Infant Mortality; D007230:Infant, Low Birth Weight; D007231:Infant, Newborn; D008297:Male; D007752:Obstetric Labor, Premature; D011247:Pregnancy; D014416:Tunisia; D014427:Twins
vernacular_title: Les grossesses gémellaires: fréquence, développement foetal et mortalité périnatale.