Decrease in High Human Chorionic Gonadotropin in Twin-Twin Transfusion Syndrome following Fetoscopic Laser Surgery

作者：HanaokaA Masachi; Hayashi Satoshi; Saito Mari; Morita Mineto; Sago Haruhiko^*

来源：Fetal Diagnosis and Therapy, 2011, 30(3): 189-193.

DOI：10.1159/000328456

• Twin-twin transfusion syndrome
• Human chorionic gonadotropin
• Fetoscopic laser surgery
• Monochorionic twins
• Placental anastomoses

Introduction: The purpose of this study was to investigate the concentration of maternal serum human chorionic gonadotropin (hCG) in twin-twin transfusion syndrome (TTTS) before and after fetoscopic laser surgery and to clarify the association between TTTS and hCG. Material and Methods: The concentration of maternal serum hCG was measured before fetoscopic laser surgery and 2 and 4 weeks after laser surgery in 120 patients diagnosed with TTTS. Results: The preoperative serum concentration of hCG was 6.34 multiples of the median (MoM; interquartile range 3.52-9.86). The concentration of hCG was higher in TTTS of Quintero stage III or IV (7.17 MoM, range 4.21-11.0) compared to stage I or II (3.37 MoM, range 2.35-7.74). When laser surgery for TTTS was effective, hCG gradually decreased to less than half the preoperative concentration 2 weeks after laser surgery, and the concentration was further reduced to within the normal range at 4 weeks. However, the concentration of hCG in 3 cases with TTTS recurrence did not decrease. Discussion: A close association was observed between the concentration of hCG and the condition of TTTS. A change in the concentration of hCG after laser surgery could be a useful marker to judge the effectiveness of laser surgery in TTTS.

• 出版日期2011