Zusammenfassung
An der Univ.-Frauenklinik Innsbruck wurde 1991 der Zeitpunkt der genetischen Amniozentese
aus Altersindikation von der 16. SSW auf die 13./14. SSW vorverlegt. 1991 waren 44,5
% aller Amniozentesen frühe Amniozentesen, 1992 bereits 61,5%. Bei den in diesen beiden
Jahren ambulant durchgeführten 346 Amniozentesen wurden 8 pathologische Karyotypen
(6 autosomale Trisomien, eine 47 XXY, 1 Marker-Chromosom) gefunden, sechs nach früher
Amniozentese, zwei nach Amniozentese in der 16. SSW. Die Spontanabortrate in den 3
Wochen nach Amniozentese betrug 0,87%. Es gab zwei Kulturversager, die Kulturdauer
lag bei der frühen Amniozentese um 1-2 Tage über der Kulturdauer von in der 16. SSW
gewonnenem Fruchtwasser. Mit der frühen Amniozentese wird das Ergebnis in der 15./16.
SSW bekannt, was den von vielen Frauen empfundenen Nachteil der Methode - die lange
Unsicherheit - erheblich abmildert.
Abstract
At the ob / gy department of the Innsbruck University routine, genetic amniocentesis
has been offered from the 13/14 week of gestation since 1991. In 1991 44.5 % of all
amniocenteses were performed as early amniocentesis, it rose in 1992 to 61.5%, the
rest being performed in the 16th week of gestation. In a total of 346 genetic amniocenteses, 8 pathological karyotypes
were obtained (six trisomies, one 47 XXY, one marker chromosome), six from samples
obtained at early amniocentesis and two obtained at the 16th week. Three weeks following the procedure, a spontaneous abortion rate of 0.87% occured.
Cultivation took 1-2 days longer with samples from early amniocentesis than with samples
collected at the 16th week. In two cases the cultures failed and a repeat procedure
had to be performed at the 16th week. With early amniocentesis performed at week 13/14
results are known of gestation. The long period of anxiety, which many women see as
a serious disadvantage of amniocentesis is thus significantly reduced.