[Surgery during pregnancy].

The decision for surgical intervention during pregnancy should be interdisciplinary and include all aspects of prenatal care. The risk of surgery to mother and fetus must be calculated and weighed against the disadvantages of other, nonradical methods. If there is no danger to the mother, the highest priority in all therapeutic considerations is the fetus and its development. The greatest threat to the fetus exists during the first trimester. In case surgery cannot be postponed till after birth, they should be done if possible during the 4th to 6th months of pregnancy, not the first trimester. In case of danger to the mother, necessary surgery must be performed any time during the pregnancy. Once extrauterine fetal survival is possible (the 24th or 25th week of pregnancy), danger to the mother and the child's mortality and morbidity of the various options must be carefully weighed for both premature delivery and continued pregnancy. Due to the problems of prematurity, any surgery during pregnancy should be carried out only in perinatal clinics outfitted with neonatologic intensive care units.