This study evaluate the effect of latent infection of tuberculosis on the pregnancy outcome of IVF-ET in infertile patients with radiographic lesions suggesting old healed tuberculosis
China is one of the countries with high burden of tuberculosis (TB) defined by WHO. IVF-ET is an effective method to treat infertility. Chest X-ray is a routine examination before IVF-ET, which can exclude active tuberculosis. However, for patients with chest X-ray showing old healed tuberculosis, the relationship between latent tuberculosis infection (LTBI) and pregnancy outcomes is unknown. In this study, a prospective cohort study was carried out in infertile women who were planning to receive IVF-ET. IGRA were tested in patients with old tuberculosis in chest X-ray. A cohort of IGRA positive and IGRA negative was constructed. The pregnancy outcomes were followed up prospectively and the relationship between latent infection of tuberculosis and pregnancy outcomes was analyzed. The primary outcome was clinical pregnancy rate, miscarriage rate and live birth rate. Secondary outcomes were tuberculosis reactivation during pregnancy period and in 3 months after delivery.
Study Type
OBSERVATIONAL
Enrollment
600
This is a observation study, with no intervention
Peking University Third Hospital
Beijing, Beijing Municipality, China
clinical pregnancy rate
Clinical pregnancy was defined as the observation of a gestational sac on ultrasonography. The clinical pregnancy rate was defined as clinical pregnancy per embryo transfer.
Time frame: 30 days after the ET procedure
miscarriage rate
Miscarriage was defined as a pregnancy loss before 28 weeks of gestation (calculated among women who became pregnant). The miscarriage rate was defined as miscarriages per clinical pregnancy.
Time frame: 40 weeks after the ET procedure
live birth rate
Live birth was defined as delivery of a living foetus (or living foetuses) beyond 28 weeks of gestation. The live birth rate was defined as live birth per embryo transfer.
Time frame: 40 weeks after the ET procedure
tuberculosis reactivation
tuberculosis during pregnancy period and in 3 months after delivery
Time frame: 40 weeks after the ET procedure
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