某患者,无自觉症状,体检时,听诊可闻及心尖部收缩中晚期喀喇音,超声提示二尖瓣后叶脱垂该病M型超声特点有A.二尖瓣前叶收缩中晚期CD段向后移位,呈"吊...

作者: rantiku 人气: - 评论: 0
问题 某患者,无自觉症状,体检时,听诊可闻及心尖部收缩中晚期喀喇音,超声提示二尖瓣后叶脱垂 该病M型超声特点有
选项 A.二尖瓣前叶收缩中晚期CD段向后移位,呈"吊床样"改变 B.二尖瓣前叶EF斜率减慢,呈"城墙样"改变 C.二尖瓣前后叶同向运动 D.二尖瓣后叶收缩期CD段向后移位呈"吊床征" E.SAM现象
答案 D
解析 :二尖瓣脱垂瓣叶运动幅度超过CD点连线2~3mm以上,具有诊断意义。另外,偏心性反流亦是该病的特征之一,即二尖瓣前叶脱垂,反流束沿着左房后壁走行,若后叶脱垂,反流束则沿着前叶走行。

猜你喜欢

发表评论
更多 网友评论0 条评论)
暂无评论
错误啦!

错误信息

  • 消息: [程序异常] : MISCONF Redis is configured to save RDB snapshots, but it's currently unable to persist to disk. Commands that may modify the data set are disabled, because this instance is configured to report errors during writes if RDB snapshotting fails (stop-writes-on-bgsave-error option). Please check the Redis logs for details about the RDB error.
  • 文件: /twcms/kongphp/cache/cache_redis.class.php
  • 位置: 第 85 行
    <?php echo 'KongPHP, Road to Jane.'; ?>