Skudder P A, Farrington D T, Weld E, Putman C
Department of Surgery, North Adams Regional Hospital, Massachusetts.
J Cardiovasc Surg (Torino). 1990 Nov-Dec;31(6):748-52.
Pregnancy is associated with DVT, pelvic thrombophlebitis, and lower extremity varicosities. Pelvic venous compression by the gravid uterus is blamed. A prospective controlled study using plethysmography was performed. Venous capacitance and outflow were measured at term, and at 1 week, 6 weeks and 3 months following delivery. Results show decreased venous capacitance and venous outflow at term pregnancy, no improvement 1 week after delivery, modest improvement at 6 weeks, and dramatic statistically significant improvement in both parameters by 3 months. The persistence of venous dysfunction for several weeks after delivery indicates that changes in venous function at term pregnancy are largely the result of factors other than pelvic venous compression by the gravid uterus.
妊娠与深静脉血栓形成、盆腔血栓性静脉炎及下肢静脉曲张有关。妊娠子宫对盆腔静脉的压迫被认为是其原因。进行了一项使用体积描记法的前瞻性对照研究。在足月时、分娩后1周、6周和3个月时测量静脉容量和流出量。结果显示，足月妊娠时静脉容量和静脉流出量减少，分娩后1周无改善，6周时有适度改善，3个月时这两个参数均有显著统计学意义的改善。分娩后数周静脉功能持续异常表明，足月妊娠时静脉功能的变化很大程度上是由妊娠子宫对盆腔静脉压迫以外的因素导致的。
