胎盘早剥(placental abruption)
定义
妊娠20周后或分娩期,正常位置的胎盘 于胎儿娩出前全部或部分从子宫壁分离, 称胎盘早剥。
发病率
占分娩总数的0.51%-2.33%
ABRUPTIO PLACENTA
Premature separation of the normally implanted placenta Occurs in approximately 1 in 120 births Accounts for 15% of perinatal mortality
2、如继续出血,胎盘剥离面扩大,血液
病理变化
5、子宫胎盘卒中(uteroplacental apoplexy)胎盘早剥尤其是隐性剥离, 胎盘后血肿不断增大,宫腔压力增加,血 液渗入子宫肌层,造成肌纤维断裂、变性。 当血液渗入子宫浆膜层时,子宫表面紫 蓝色瘀斑,腹腔液呈血性。 血性羊水 胎盘后血肿血液渗入羊膜腔。
GRADE III:
moderate to severe bleeding (may be concealed) tetanic and painful uterus
maternal hypotension FETAL DEATH
GRADE III
Grade III a: without coagulopathy
Maternal abdomen
Fundal height Location of tenderness Tetanic contrations
Trauma Other risk factors
PHYSICAL EXAM