Genetic diagnosis in the first trimester: The norm for the 1990s
1989
Increasing technical capabilities and patient motivation for earlier and more private prenatal genetic diagnosis have allowed us to alter the concept of first-trimester genetic diagnosis from being rare to routine in our tertiary Reproductive Genetics Center. As public awareness of available services has increased, we have seen steadily increasing numbers and proportion of patients who are referred by their physicians earlier, who schedule tests earlier, opting to have earlier testing, and accept slightly higher risks in return for earlier results and privacy. Analysis of our clinical and laboratory results and complication rates suggests that first-trimester genetic diagnosis by either chorionic villus sampling or early amniocentesis may be offered to virtually all patients who would be candidates in the midtrimester. We believe that this trend will accelerate, making first-trimester diagnosis the norm, rather than the exception, for the 1990s. (AM J OBSTET GVNECOL 1989;160:1332-9.)
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