SINGLE-NEEDLE INSERTION - AN ALTERNATIVE TECHNIQUE FOR EARLY 2ND-TRIMESTER GENETIC TWIN AMNIOCENTESIS

Single-needle insertion as an alternative technique for genetic amnioc entesis in twin gestation has been evaluated in 27 pregnancies, A 22-g auge needle was inserted into the most proximal sac and amniotic fluid was aspirated, The needle was then traversed through the dividing mem brane to enter the second sac and amniotic fluid was aspirated, This t echnique avoids the use of dye and ensures tapping of both sacs, No fe tal losses attributable to the procedure occurred during the trial, In comparison with the double-needle insertion, it is a swift and easy p rocedure and reduces discomfort to the patient.