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胚外体腔是人类胚胎发育早期形成的一个生理含液体腔,环绕在胚胎/胎儿周围,所含成分可以用于研究孕早期母胚物质代谢和药物对早期胚胎的影响、孕早期产前诊断和移植治疗。在阴道超声引导下,胚外体腔穿刺术最早可在5~6孕周进行。现就胚外体腔的形成、胚外体腔液的成分和生理特点、临床应用及胚外体腔穿刺术存在的问题进行综述。
The extra-corporeal cavity is a physiological fluid-containing cavity formed in the early stage of human embryo development and surrounds the embryo / fetus. The contained components can be used to study the metabolism of the embryo in the first trimester and the influence of the drug on the early embryo. The prenatal diagnosis and Transplant treatment. Under the guidance of vaginal ultrasound, the extra-corporeal cavity puncture can be carried out in the first 5 to 6 gestational weeks. Now on the formation of extra-corporeal cavity, extra-corporeal fluid composition and physiological characteristics, clinical application and extrahepatic body cavity puncture problems are reviewed.