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Updated: Jun 27, 2026
Chronic Implantation of Multiple Flexible Polymer Electrode Arrays
Published on: October 4, 2019
A 12-month prospective evaluation of transcervical sterilization using implantable polymer matrices
Thierry G Vancaillie1, Ted L Anderson, D Alan Johns
1From the Department of Endo-Gynaecology, Royal Hospital for Women, Sydney, and University of New South Wales, New South Wales, Australia; Division of Gynecology and Gynecologic Surgery, Vanderbilt University Medical Center, Nashville, Tennessee; and Texas Health Care, Fort Worth, Texas.
Objective:
To evaluate placement efficacy and reliability of a an intratubal occlusion device for permanent contraception and to assess tolerability and overall satisfaction.
Methods:
Seven hundred seventy women with known parity were recruited to participate in a prospective, multicenter study. Bipolar, low-level radiofrequency energy delivery and porous silicon inserts were used. Inserts were placed bilaterally in the fallopian tube lumen. Subsequent bilateral occlusion was assessed with hysterosalpingography.
Results:
Overall, bilateral placement success was achieved in 611 of 645 women (95%). Bilateral occlusion was confirmed in 570 of 645 (88.4%). The 1-year pregnancy prevention rate as derived with life-table methods was 98.9%.
Conclusion:
This transcervical sterilization system offers an effective contraceptive method, which was well tolerated and had a high satisfaction rate.
Level Of Evidence:
III.
