RT Journal A1 Evans MI, Drugan A, Manning FA, Harrison MR T1 FEtal surgery in the 1990s JF American Journal of Diseases of Children JO American Journal of Diseases of Children YR 1989 FD December 1 VO 143 IS 12 SP 1431 OP 1436 DO 10.1001/archpedi.1989.02150240053016 UL http://dx.doi.org/10.1001/archpedi.1989.02150240053016 AB In the recent past, the first opportunity to visualize fetal structure and function occurred at birth. Two major contributions in the 1960s inaugurated the era of the fetus as a patient: (1) Prenatal diagnosis became possible using amniocentesis as a technique to evaluate fetal health by cytogenetic1 and biochemical2,3 analysis. (2) Prenatal treatment became possible using fetal transfusion to control rhesus factor erythroblastosis fetalis.4 Intrauterine exchange transfusions through an open abdomen and uterine incision were attempted and abandoned due to unacceptably high maternal morbidity associated with "open" procedures.5 The development of less invasive techniques for percutaneous placement of catheters or needles for intraperitoneal transfusion permitted in utero exchange transfusion.6In the 1970s, the introduction of fetal ultrasonography allowed for accurate visualization of the structure and function of the fetus.7 As skill and technology advanced, the list of fetal anomalies able to be diagnosed by