[Analytic study of amniocentesis in prenatal genetic diagnosis. Transversal study of cases]

The experience obtained in 44 cases, in which amniocentesis was practiced for genetic diagnostic purpose in the private center in México City is presented. Indications, morbility and results are similar to those reported in the literature, is considered that this method should be offered to the couples who receive information about it and have maternal age 35 or older, antecedent of family chromosomal disease, alteration in maternal serum screening or family anguish. This is a safe method and easy to perform with a high sensibility and specificity, this is the first report in a private center in México that analyzes technique.