Increased perinatal mortality and morbidity in monochorionic versus dichorionic twin pregnancies: clinical implications of a large Dutch cohort study

被引:296
|
作者
Hack, K. E. A. [1 ]
Derks, J. B. [1 ]
Elias, S. G. [2 ]
Franx, A. [3 ]
Roos, E. J. [3 ]
Voerman, S. K. [1 ]
Bode, C. L. [1 ]
Koopman-Esseboom, C. [4 ]
Visser, G. H. A. [1 ]
机构
[1] Univ Utrecht, Med Ctr, Wilhelmina Childrens Hosp, Dept Obstet, NL-3508 AB Utrecht, Netherlands
[2] Univ Utrecht, Med Ctr, Julius Ctr Hlth Sci & Primary Care, Utrecht, Netherlands
[3] St Elizabeth Hosp, Dept Obstet, Tilburg, Netherlands
[4] Univ Utrecht, Med Ctr, Wilhelmina Childrens Hosp, Dept Neonatol, Utrecht, Netherlands
关键词
chorionicity; morbidity; optimal time of delivery; perinatal mortality; pregnancy; twin; unexpected fetal death;
D O I
10.1111/j.1471-0528.2007.01556.x
中图分类号
R71 [妇产科学];
学科分类号
100211 ;
摘要
Objective To evaluate mortality and morbidity in a large cohort of twin pregnancies according to chorionicity. We aimed to estimate the optimal time of delivery. Design Historical cohort design. Setting Two teaching hospitals. Population Twin pregnancies delivered in the University Medical Centre, Utrecht, and the St Elisabeth Hospital, Tilburg (1995-2004), The Netherlands (n = 1407). Methods Pregnancy outcomes were documented according to chorionicity. Mortality 32 weeks was reviewed carefully with special attention to antenatal fetal monitoring, autopsy and placental histopathology to find an explanation for adverse outcome. Main outcome measures Perinatal mortality and morbidity in monochorionic (MC) and dichorionic (DC) twins. Results Perinatal mortality was 11.6% in MC twin pregnancies and 5.0% in DC twin pregnancies. After 32 weeks, the risk of intrauterine death (IUD) was significantly higher in MC twins than in DC twins (hazard ratio 8.8, 95% CI 2.7-28.9). In most of these cases of IUD, no antenatal signs of impaired fetal condition had been present. Median gestational age was 1 week longer in DC twins than in MC twins, and the mean birthweight was 221 g higher. Severe birthweight discordancy (> 20%) occurred more often in MC twins than in DC twins (OR 1.23, 95% CI 0.97-1.55). The incidence of necrotising enterocolitis (NEC) was higher in MC twins, after adjustment for age and weight at birth (OR 4.05, 95% CI 1.97-8.35). There was a trend towards higher neuromorbidity in MC twins. Conclusions This is the largest cohort study of twin pregnancies evaluating outcome according to chorionicity thus far. MC twins are at increased risk for fetal death (even at term), NEC and neuromorbidity. Current antenatal care is insufficient to predict and prevent this excess perinatal mortality and morbidity. Planned delivery at or even before 37 weeks of gestation seems to be justified for MC twins.
引用
收藏
页码:58 / 67
页数:10
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