To assess the maternal and neonatal risk associated with high-order ce
sarean sections, a case-control study was carried out in two universit
y affiliated maternity wards. The outcome of 154 pregnancies of women
undergoing cesarean section for the 4th time or more was compared with
148 women sectioned for the 2nd or 3rd time and 132 women of similar
age and parity after spontaneous birth. The main outcome measures were
maternal operative and postoperative morbidity and neonatal prematuri
ty and its complications, Apgar scores, and the need for intensive car
e. Women undergoing multiple (greater than or equal to 4) cesarean sec
tions had significantly more intra-abdominal adhesions (P < 0.0001) th
an women sectioned for the 2nd or 3rd time. However, the time interval
from incision to delivery and the total duration of operation were si
milar. The postoperative course was not adversely affected by multiple
cesarean sections. A high incidence (16.2%) of preterm cesarean deliv
eries was noted in the study group. This was due to nonelective repeat
cesarean delivery rather than to poor timing of scheduled cesarean se
ctions. The significantly increased (P < 0.05) need for neonatal inten
sive care was explained by the higher occurrence of prematurity. Low A
pgar scores (less than or equal to 7) at 1 and 5 min were significantl
y (P < 0.01) related to multiple cesarean sections, even after control
ling for the effect of gestational age. We conclude that multiple cesa
rean sections pose little risk for the mother, but may be associated w
ith increased neonatal risk, attributed mainly to preterm non-elective
cesarean sections.