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Novel reversible permanent contraception: An animal experiment of embedding contraceptive surgery in the fimbriated extremity of the fallopian
Author(s) -
Xin Gang,
Du Juan,
Zhang Jun,
Xu YongPing
Publication year - 2014
Publication title -
journal of obstetrics and gynaecology research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.597
H-Index - 50
eISSN - 1447-0756
pISSN - 1341-8076
DOI - 10.1111/jog.12430
Subject(s) - medicine , fallopian tube , hydrosalpinx , oviduct , surgery , gynecology , pregnancy , infertility , biology , genetics
Aim According to female pelvic anatomical characteristics, we designed a novel reversible permanent contraception: embedding contraceptive surgery in the fimbriated extremity of the fallopian. This study involves embedding the oviduct of N ew Z ealand rabbits into the peritoneum, and assesses contraceptive effect, morphological changes and recoverability. Methods Thirty N ew Z ealand rabbits were divided into three groups: embedding in the fimbriated extremity of the fallopian group ( A group); polyethylene film in the fimbriated extremity of the fallopian group ( B group); and control ( C group). Surgery was performed in each group, respectively. Contraceptive efficacy, morphological changes and recoverability were noted. Results As for contraceptive effect, mating experiences were successful. After 3 months, there were no pregnant rabbits in group A and B , while in group C all samples were pregnant. Regarding recoverability, after belly operation, 10 rabbits in group A showed dropsy in the bilateral oviducts. Tissue adhesion could be found in the fimbriated extremity of the fallopian with a large range of damage. All samples in group B also had dropsy, but only two of them had unilateral slight adhesions in the fimbriated extremity of the fallopian, while others had no pathological changes. After being released from the oviduct embedding, five rabbits in group A became pregnant and nine in group B . Conclusion Embedding contraceptive surgery in the fimbriated extremity of the fallopian after being covered by polyethylene film is reliable and safe. Releasing the embedding may cause minor injury. Although there is a problem of hydrosalpinx, the pregnancy rate is high.