一种新的技术,使用冷端射频除来选择性减少复杂的单双胞胎胎的胎儿
Ting Yi Chu1, Chih-Ping Chen2, Pei-Chen Chen3
1Department of Obstetrics and Gynecology, Taipei Chang Gung Memorial Hospital, Taipei, Taiwan.
Taiwanese journal of obstetrics & gynecology
|March 6, 2025
概括
一种新的4点射频除 (RFA) 方法改善了复杂单胎怀孕中双胞胎的存活率. 这种技术为选择性胎儿减肥提供了安全有效的选择,尽量减少热损伤.
科学领域:
- 孕产妇和胎儿医学 孕产妇和胎儿医学
- 干预心脏病学 干预心脏病学
- 生殖医学 生殖医学
背景情况:
- 单 (MC) 双胞胎面临重大风险,包括双胞胎对双胞胎输血综合征 (TTTS),选择性胎儿生长限制 (sFGR) 和双胞胎逆动脉输液序列 (TRAP).
- 选择性胎儿减少通常用于复杂的MC双胞胎怀孕,预期结果不佳.
研究的目的:
- 开发和评估一种新的冷端射频切除 (RFA) 技术,用于选择性减少MC双胞胎的胎儿.
- 分析与这种新的RFA方法相关的围产期结局.
主要方法:
- 一组51名复杂的MC双胞胎接受了选择性胎儿减小,使用一种新的等边三角形4点冷尖RFA方法.
- 该技术涉及单次刺穿,在带插入部位进行四次切除,静脉和两个动脉停止血液流动.
- 功率设置范围从60W到100W,每个站点1分钟.
主要成果:
- 共同双胞胎的整体生存率为88% (45/51).
- 新的4点除组显示,与传统的单点除组 (80%) 相比,同胞双胞胎的存活率 (93.5%) 显著更高.
- 两组之间在孕产妇年龄,手术时的妊娠年龄,手术时间或早产率方面没有观察到统计学上显著的差异.
结论:
- 新的等边三角形RFA方法有效地阻止了带血流,在没有产妇并发症的情况下实现了高成功率.
- 在低温下使用17g冷头RFA可以最大限度地减少热损伤.
- 这种技术为RFA在管理复杂的单胆子妊娠中提供了一个有希望的新选择.
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