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作者报道了15例胎儿镜的体会,并认为作胎儿镜至少要达到两点要求:1)不要伤及胎儿,不要引起胎儿宫内死亡,不要促发早产,因这些孕妇曾分娩过畸形儿而精神负担很重;2)要看清楚所想看到的,即看到胎儿或胎盘的特殊部分,但由于视野狭窄,羊水中又有很多颗粒阻碍视线,这点还不能保证做到。目前,有三种胎儿镜,最小的为针镜,直径1.7毫米,约如14号针头粗细,套管直径为2.2毫米,长15厘米,带有小的导管可抽胎儿血或取标本。手术时期根据要求决定,如仅观察胎儿,则在16～17周进行,如取胎血,则可延长到17～20周。如手术熟练可用局麻,否则用全麻,通常在腹中线上脐耻间进针。必需先用超声定位,主要不能伤及
The authors reported the experience of 15 cases of fetoscope, and that fetus at least two requirements: 1) Do not hurt the fetus, do not cause intrauterine fetal death, do not promote premature delivery, because these pregnant women had had birth deformed children Mental burden; 2) to see clearly what you want to see, that see the fetus or placenta special part, but due to narrow field of vision, there are many amniotic fluid particles obstruct the line of sight, this can not be guaranteed. Currently, there are three types of fetoscopes, the smallest being a needle mirror, 1.7 mm in diameter, approximately the size of a 14 gauge needle, a 2.2 mm diameter cannula and 15 cm long with a small catheter that can be drained of fetal blood or specimens. The operation period is decided upon according to the requirements. If only the fetus is observed, the operation is carried out at 16-17 weeks. If taking fetus blood, it can be prolonged to 17-20 weeks. Such as surgical skillful use of local anesthesia, or with general anesthesia, usually in the abdomen line umbilical needle shame. Must first use ultrasound positioning, the main can not be hurt