Risk analysis according to placental penetration by amniocentesis needle

Noh, Young Su; Kim, Gwang Jun; Lee, Gyoung Hun; Lim, Seong Mi; Kang, Cheol Gyu; Kim, Suk Young; Park, Chan Yong; Choi, Yu Duk; Whang, Byoung Cheol

Abstract

OBJECTIVES
To evaluate pregnancy outcomes after placental needle penetration during midtrimester diagnostic amniocentesis.
METHODS
We collected 726 singleton pregnancy cases from 1054 pregnancies of midtrime-ster diagnostic amniocentesis, and analysed pregnancy outcomes after the procedure based on medical records. To compare the outcomes, we divided 726 cases into two groups; placental penetration group by aspiration needle(170 cases) and non-penetration group(556 cases).
RESULTS
There were no statistically significant differences between two groups about maternal age and gestational age at the time of procedure, and the distribution of amniocentesis indication. In comparison of complications between two groups after procedure, a. There was no statistically significant difference in amniotic fluid leakage: in penetration group, 1 case (0.58%) and in non-penetration group, 5 cases(0.89%) were observed. b. There was no statistically significant difference in vaginal bleeding: in penetration group, 2 cases (1.18%) and in non-penetration group, 3 cases(0.54%) were observed. c. There was no statistically significant difference in developing abruptio placentae: in penetration group, no case developed and in non-penetration group, one case(0.18%) was observed. d. As for fetal loss, there was no statistically significant difference : in penetration group, 4 cases (2.35%) and in non-penetration group, 10 cases(1.80%) were occurred. e. As for birth weight, there was no statistically significant difference : in penetration group, 3.26+/-0.8 kg and in non-penetration group, 3.21+/-0.9 kg were measured.
CONCLUSION
Our study shows that placental penetration by aspiration needle during diagnostic mid-trimester amniocentesis does not increase the risk of post-procedure complication.