Study Design
Single center prospective cohort study with consecutive inclusion of
patients and structured follow-up every three months during the first
year after inclusion.
Population
Women aged between 20-45 years,
diagnosed with a niche by MRI scan
with postmenstrual spotting of at least two days who considered to
undergo a hysteroscopic niche resection or to receive a LNG-IUD between
April 2018 and April 2019 in the
International Peace Maternity and
Child Health Hospital affiliated to Shanghai Jiao Tong University School
of Medicine, China were asked to participate in the study,
consecutively. Exclusion criteria were fertility wish within 1year,
irregular menstrual cycle before the last CS, the presence of an
intrauterine device, coagulopathy, current exogenous hormone treatment,
and other gynecological conditions that could cause prolonged bleeding
such as leiomyoma, adenomyoma, endometrial hyperplasia, ovarian
endometriosis and pregnancy. In the hysteroscopic niche resection group,
additional exclusion criteria were contraindication for general
anesthesia and a residual myometrial thickness of less than 2mm.