...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Clinical Ultrasound: JCU >Early fetal circulation in pregnancies complicated by retroplacental hematoma.
【24h】

Early fetal circulation in pregnancies complicated by retroplacental hematoma.

机译：妊娠早期胎儿循环并发胎盘后血肿。

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The objective of this study was to investigate the effects in early gestation of retroplacental hematomas on Doppler indices measured in different fetal vascular districts and to relate these changes, if any, to the volume of hematoma and pregnancy outcome. Thirty-eight pregnancies complicated by bleeding and ultrasonographic findings of retroplacental hematomas were considered for this study. Menstrual age ranged between 9 and 14 weeks. Blood flow velocity waveforms were measured in the umbilical artery, descending aorta, middle cerebral artery, and inferior vena cava. The pulsatility index in arterial vessels was calculated as well as the percentage reverse flow in the inferior vena cava. The values obtained were compared to previously constructed reference limits. No significant differences were found for any of the Doppler indices when the values obtained in pregnancies complicated by retroplacental hematomas were compared to the reference limits. Furthermore no significant relationships were foundbetween the Doppler indices and either the size of hematoma or pregnancy outcome. In conclusion, retroplacental hematoma does not induce hemodynamic effects in the fetal circulation before 14 weeks, menstrual age. These data do not support the use of Doppler ultrasonography in early gestation for pregnancies complicated by bleeding and retroplacental hematomas.
机译：这项研究的目的是调查胎盘后血肿在早期妊娠中对不同胎儿血管区域测得的多普勒指数的影响，并将这些变化（如有的话）与血肿量和妊娠结局联系起来。本研究考虑了38例妊娠合并胎盘后血肿的出血和超声检查结果。月经年龄在9至14周之间。测量了脐动脉，降主动脉，大脑中动脉和下腔静脉的血流速度波形。计算动脉血管中的搏动指数以及下腔静脉中的逆流百分比。将获得的值与先前构建的参考限值进行比较。将妊娠合并胎盘后血肿的妊娠值与参考限值进行比较，发现任何多普勒指数均无显着差异。此外，在多普勒指数与血肿大小或妊娠结局之间未发现显着关系。总之，胎盘后血肿在月经14周之前不会在胎儿循环中引起血液动力学效应。这些数据不支持在妊娠早期合并出血和胎盘后血肿的妊娠早期使用多普勒超声检查。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号