Follow-up appointments will usually take place so that her doctor can monitor the cervix and stitch and watch for signs of premature labor. The patient will then be allowed to return home, but will be instructed to remain in bed or avoid physical activity (including sexual intercourse) for two to three days, or up to two weeks. After the cerclage has been placed, the patient will be observed for at least several hours (sometimes overnight) to ensure that she does not go into premature labor. A cerclage is considered successful if labor and delivery is delayed to at least 37 weeks (full term). The success rate for cervical cerclage is approximately 80–90% for elective cerclages, and 40–60% for emergency cerclages. The word "cerclage" means encircling, hooping or banding in French. Usually the treatment is done in the first or second trimester of pregnancy, for a woman who has had one or more late miscarriages in the past. It is typically performed on an outpatient basis by an obstetrician-gynecologist. The procedure is performed under local anaesthesia, usually by way of a spinal block. The treatment consists of a strong suture sewn into and around the cervix early in the pregnancy, usually between weeks 12 to 14, and then removed towards the end of the pregnancy when the greatest risk of miscarriage has passed. In women with a prior spontaneous preterm birth and who are pregnant with one baby, and have shortening of the cervical length less than 25 mm, a cerclage prevents a preterm birth and reduces death and illness in the baby. Cervical cerclage, also known as a cervical stitch, is a treatment for cervical weakness, when the cervix starts to shorten and open too early during a pregnancy causing either a late miscarriage or preterm birth.
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