用有可弯曲性外鞘及内含与其共轴的软性胚胎移植管的硬性宫颈口导管进行插管不影响体外受精-胚胎移植的效果

• 作 者: Silberstein T.ankfurter D. 朱国栋
• 出 处: 世界核心医学期刊文摘(妇产科学分册)
• 发表日期: 2005年04期
• 关键词: 胚胎移植管 外鞘 弯曲性 颈口 共轴 软性 胚胎着床 插管 导管 胚胎移植

To assess the impact of cannulation of a resistant cervical os with the outer malleable sheath of a doublelumen, soft ET catheter on IVFET outcomes. Retrospective cohort study. Universitybased IVF center. One hundred fortytwo patients undergoing 142 ETs. Trial ultrasoundguided ET at all transfers, leaving the malleable outer sheath in situ when the soft inner catheter could not negotiate the internal os. Implantation rate and clinical pregnancy rate. In 102 ETs (71.8%), the soft inner sheath easily negotiated the internal os (group 1). Forty ETs (28.2%)required cannulation of resistant internal ora with the outer sheath of the trial catheter (group 2). Implantation rates (35%vs. 32%in groups 1 and 2, respectively) and clinical pregnancy rates (50%vs. 45%) were not significantly different between groups. Blood was present on the transfer catheter after ET more frequently in group 2 than in group 1 (55%vs. 15%); however, neither the implantation rate nor the clinical pregnancy rate were affected by the presence of blood. Cannulation of a resistant internal os by the malleable outer sheath and blood on the transfer catheter after ET do not have an adverse effect on implantation rate or clinical pregnancy rate.

To assess the impact of cannulation of a resistant cervical os with the outer malleable sheath of a doublelumen, soft ET catheter on IVFET outcomes. Retrospective cohort study. Universitybased IVF center. One hundred forty-two patients undergoing 142 ETs. Trial Intuitive guided ET at all transfers, leaving the malleable outer sheath in situ when the soft inner catheter could not negotiate the internal os. Implantation rate and clinical pregnancy rate. In 102 ETs (71.8%), the soft inner sheath negotiable negotiated The internal os (group 1). Forty ETs (28.2%)  selected cannulation of resistant internal ora with the outer sheath of the trial catheter (group 2). Implantation rates (35% vs. 32% in groups 1 and 2, respectively ), and clinical pregnancy rates (50% vs. 45%) were not significantly different between groups. Blood was presented on the transfer catheter after ET more frequently in group 2 than in group 1 (55% vs. 15%); however, neither the implantation rate nor the clinical pr egnancy rate were affected by the presence of blood. Cannulation of a resistant internal os by the malleable outer sheath and blood on the transfer catheter after ET do not have an adverse effect on implantation rate or clinical pregnancy rate.