Abstract
Study ObjectiveCervical stenosis can be an impediment to embryo transfer (ET) and intrauterine insemination (IUI). We propose a technique of hysteroscopic cervical resection to overcome cervical stenosis. DesignProspective clinical study (Canadian Task Force classification III). SettingPrivate general hospital. PatientsForty-three infertile women in whom trial ET or IUI had failed with 3 available catheters. InterventionsThe procedure was performed with a hysteroscope under ultrasound guidance. Starting from the external os, the loop electrode gradually resected protrusions and cervical tissue until the hysteroscope could enter the uterine cavity. Repeat trial ET/IUI was performed 1 month later. The women who became pregnant underwent sonographic measurement of the cervical length and dilatation in the second and third trimesters. Measurements and Main ResultsExcluding 13 patients in whom the sound could pass through the cervical canal after anesthesia, 30 patients were included for analysis. The procedure failed in 1 patient (3.3%). The mean operation time was 18.0 (±7.4) minutes. Repeat trial ET/IUI was successful in all patients. There were 5 twin pregnancies and 9 singleton pregnancies after IUI or ET. From the 5 women with twin pregnancies; 2 underwent premature delivery at 34 weeks; and 3 underwent elective cesarean delivery at 35, 36, and 37 weeks, respectively. From the 9 women with singleton pregnancies, 1 underwent cesarean section at 36 weeks because of preeclampsia, and the other 8 delivered at term. ConclusionHysteroscopic cervical resection is a safe and effective treatment for cervical stenosis.
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