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间质部妊娠占所有输卵管妊娠的2％～4％,其独特的解剖位置常导致诊断的延误。异位妊娠死亡率从1880年的72％～90％显著降至1990年的0.14％,但间质部妊娠依旧为2％～2.5％。 与间质部妊娠有关的因素通常包括盆腔感染性疾病、既往盆腔手术、肿瘤、子宫异常和辅助生殖技术(ART)的应用。同侧输卵管切除术是间质部妊娠独特的危险因素。 间质部妊娠是术前明确诊断最困难的异位妊娠,应与宫角妊娠鉴别。宫角妊娠是胚胎种植在子宫输卵管结合处内侧,靠近输卵管内口,与间质部妊娠比较,它位于圆韧带内
Interstitial pregnancy accounted for 2% to 4% of all tubal pregnancy, its unique anatomical location often leads to the delay of diagnosis. The ectopic pregnancy mortality rate dropped significantly from 72% to 90% in 1880 to 0.14% in 1990, but the interstitial pregnancy was still between 2% and 2.5%. Factors associated with interstitial pregnancy usually include pelvic infectious disease, previous pelvic surgery, cancer, uterine anomalies, and assisted reproductive technology (ART). Ipsilateral tubal excision is a unique risk factor for interstitial pregnancy. Interstitial pregnancy is a preoperative diagnosis of the most difficult ectopic pregnancy, uterine horn pregnancy should be identified. Cornual angle pregnancy is the embryo planting in the uterus tubal junction inside, near the mouth of the fallopian tube, and interstitial pregnancy, it is located in the round ligament